Last Sync for now

-Added: List.indexedIterator which allows you to create a iterator with a customized iteration indecies. Useful if you want to transform lists output.
-Added: PriorityQueue.contains is now a function
-Added: Iterators/Async Builders now support MapToPrimitiveType function on the object variant. So more processing can be done. (Will be expanded upon later versions)
-Updated: SimpleCodeGenerator 1.3.0 is now being used which allows for iterative code support.

.classpath

@@ -6,12 +6,6 @@
 			<attribute name="gradle_used_by_scope" value="main,test"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="src" output="bin/main" path="src/main/resources">
-		<attributes>
-			<attribute name="gradle_scope" value="main"/>
-			<attribute name="gradle_used_by_scope" value="main,test"/>
-		</attributes>
-	</classpathentry>
 	<classpathentry kind="src" output="bin/test" path="src/test/java">
 		<attributes>
 			<attribute name="gradle_scope" value="test"/>

.github/workflows/build_action.yml

@@ -0,0 +1,33 @@
+name: Latest Build
+
+on:
+   push:
+      branches: [ master ]
+   pull_request:
+      branches: [ master ]
+
+jobs:
+   build:
+      strategy:
+         fail-fast: false
+         matrix:
+            jdk: [8, 11, 16, 17, 18, 19, 20]
+
+      runs-on: ubuntu-latest
+      steps:
+         - uses: actions/checkout@v3
+         
+         - name: Set up JDK ${{ matrix.jdk }}
+           uses: actions/setup-java@v3
+           with:
+               distribution: 'temurin'
+               java-version: ${{ matrix.jdk }}
+
+         - name: Validate Gradle wrapper
+           uses: gradle/wrapper-validation-action@v1
+
+         - name: Make gradlew executable
+           run: chmod +x ./gradlew
+
+         - name: Build with Gradle
+           run: ./gradlew build

.github/workflows/build_tests_action.yml

@@ -0,0 +1,84 @@
+name: Unit Tests
+
+on:
+   push:
+      branches: [ master ]
+      
+jobs:
+   build:
+      name: Unit Tests
+      runs-on: ubuntu-latest
+      steps:
+      -  uses: actions/checkout@v3
+         with:
+            fetch-depth: 0
+            
+      -  name: Set up JDK 11
+         uses: actions/setup-java@v3
+         with:
+            distribution: temurin
+            java-version: 11
+            cache: gradle
+            
+      -  name: Make gradlew executable
+         run: chmod +x ./gradlew
+      -  name: Build and Test
+         run: |
+           ./gradlew generateTestSource test jacocoTestReport --info -Dfull_test_suite=true
+           ./gradlew --stop
+         
+      -  name: Publish Test Result
+         uses: EnricoMi/publish-unit-test-result-action@v2
+         id: test-results
+         if: always()
+         with:
+            junit_files: build/test-results/**/*.xml
+            fail_on: nothing
+            ignore_runs: true
+            json_thousands_separator: .
+            time_unit: milliseconds
+            
+      -  name: Create Badge Color
+         shell: bash
+         run: |
+            case ${{ fromJSON( steps.test-results.outputs.json ).conclusion }} in
+              success)
+                echo "BADGE_COLOR=31c653" >> $GITHUB_ENV
+                ;;
+              failure)
+                echo "BADGE_COLOR=800000" >> $GITHUB_ENV
+                ;;
+              neutral)
+                echo "BADGE_COLOR=696969" >> $GITHUB_ENV
+                ;;
+            esac
+
+      -  name: Create Test Badge
+         uses: emibcn/badge-action@v1.2.4
+         with:
+            label: Tests
+            status: '${{ fromJSON( steps.test-results.outputs.json ).conclusion }}, Passed: ${{ fromJSON( steps.test-results.outputs.json ).formatted.stats.tests_succ }}, Skipped: ${{ fromJSON( steps.test-results.outputs.json ).formatted.stats.tests_skip }}, Failed: ${{ fromJSON( steps.test-results.outputs.json ).formatted.stats.tests_fail }}'
+            color: ${{ env.BADGE_COLOR }}
+            path: tests.svg
+
+      -  name: Create Coverage Badge
+         id: jacoco
+         uses: cicirello/jacoco-badge-generator@v2
+         with:
+            jacoco-csv-file: build/reports/jacoco/test/jacocoTestReport.csv
+            badges-directory: null
+            intervals: 95 80 70 60 50 0
+      
+      -  name: Upload Test Badge
+         uses: exuanbo/actions-deploy-gist@v1
+         with:
+            token: ${{ secrets.GIST_TOKEN }}
+            gist_id: 280257cd19cbe1dda3789bebd4ff65cf
+            file_path: tests.svg
+            
+      -  name: Upload Coverage Badge
+         uses: exuanbo/actions-deploy-gist@v1
+         with:
+            token: ${{ secrets.GIST_TOKEN }}
+            gist_id: 280257cd19cbe1dda3789bebd4ff65cf
+            file_path: jacoco.svg

.github/workflows/build_validator.yml

@@ -1,36 +0,0 @@
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
-
-name: Latest Build
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  build:
-    strategy:
-      fail-fast: false
-      matrix:
-        jdk: [8, 11, 14, 16, 17]
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up JDK ${{ matrix.jdk }}
-      uses: actions/setup-java@v1
-      with:
-        java-version: ${{ matrix.jdk }}
-    - name: Validate Gradle wrapper
-      uses: gradle/wrapper-validation-action@e6e38bacfdf1a337459f332974bb2327a31aaf4b
-    - name: Make gradlew executable
-      run: chmod +x ./gradlew
-    - name: Build with Gradle
-      run: ./gradlew build

.github/workflows/coverage.yml

@@ -0,0 +1,27 @@
+name: Measure coverage
+
+on:
+  push:
+    branches: [ debug ]
+jobs:
+  build:
+    name: Code Quality Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
+      - name: Set up JDK 11
+        uses: actions/setup-java@v5
+        with:
+          distribution: 'temurin'
+          java-version: 11
+          cache: 'gradle'
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
+      - name: Build and analyze
+        run: ./gradlew generateTestSource test jacocoTestReport --info -Dfull_test_suite=true
+      - name: Upload to CodeCov
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        run: bash <(curl -s https://codecov.io/bash) -t $CODECOV_TOKEN

.github/workflows/pull_build_tests_action.yml

@@ -0,0 +1,39 @@
+name: Unit Tests
+
+on:
+   pull_request:
+      branches: [ master ]
+
+jobs:
+   build:
+      name: Unit Tests
+      runs-on: ubuntu-latest
+      steps:
+      -  uses: actions/checkout@v2
+         with:
+            fetch-depth: 0
+            
+      -  name: Set up JDK 11
+         uses: actions/setup-java@v3
+         with:
+            distribution: temurin
+            java-version: 11
+            cache: gradle
+            
+      -  name: Make gradlew executable
+         run: chmod +x ./gradlew
+      -  name: Build and Test
+         env:
+            GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+         run: ./gradlew generateTestSource test jacocoTestReport --info -Dfull_test_suite=true
+         
+      -  name: Publish Test Result
+         uses: EnricoMi/publish-unit-test-result-action@v2
+         id: test-results
+         if: always()
+         with:
+            junit_files: build/test-results/**/*.xml
+            fail_on: nothing
+            ignore_runs: true
+            json_thousands_separator: .
+            time_unit: milliseconds

.gitignore

@@ -20,15 +20,21 @@ gradle-app.setting
 /bin/
 /storage/
 #Generated Code
-/src/main/java/speiger/src/collections/booleans/*
-/src/main/java/speiger/src/collections/bytes/*
-/src/main/java/speiger/src/collections/shorts/*
-/src/main/java/speiger/src/collections/chars/*
-/src/main/java/speiger/src/collections/ints/*
-/src/main/java/speiger/src/collections/longs/*
-/src/main/java/speiger/src/collections/floats/*
-/src/main/java/speiger/src/collections/doubles/*
-/src/main/java/speiger/src/collections/objects/*
+
+
+#Generated Tests
+/src/test/java/speiger/src/testers/booleans/*
+/src/test/java/speiger/src/testers/bytes/*
+/src/test/java/speiger/src/testers/shorts/*
+/src/test/java/speiger/src/testers/chars/*
+/src/test/java/speiger/src/testers/ints/*
+/src/test/java/speiger/src/testers/longs/*
+/src/test/java/speiger/src/testers/floats/*
+/src/test/java/speiger/src/testers/doubles/*
+/src/test/java/speiger/src/testers/objects/*
+/src/test/java/speiger/src/tests/*
 
 #Cache result
 /src/builder/resources/speiger/assets/collections/cache.bin
+/src/builder/resources/speiger/assets/testers/cache.bin
+/src/builder/resources/speiger/assets/tests/cache.bin

Changelog.md

@@ -1,5 +1,84 @@
 # Changelog of versions
 
+### Version 0.8.1
+- Added: getFirst/getLast/removeFirst/removeLast to List.class.
+- Added: Dedicated Set toArray implementations.
+- Added: ToArray/pushTop functions to Stack.class.
+- Added: ComputeNonDefault functions which will contain the current behavior of the Compute function, while the Compute will be changed to be more java compliant!
+- Added: List.reversed, which returns a SubList that has all elements in reversed order and also inserts reversed.
+- Added: Iterators.infinite as an option that will create a Infinite Iterator based on the inputed one.
+- Added: List.indexedIterator which allows you to create a iterator with a customized iteration indecies. Useful if you want to transform lists output.
+- Added: PriorityQueue.contains is now a function
+- Added: Iterators/Async Builders now support MapToPrimitiveType function on the object variant. So more processing can be done. (Will be expanded upon later versions)
+- Fixed: SetValue wasn't working on forEach implementations.
+- Fixed: Compute functions now perform with primitives more java compliant. Meaning that getDefaultReturnValue function no longer is seen as null.
+- Fixed: Supplier was using the wrong dataType in their function name.
+- Updated: SimpleCodeGenerator 1.3.0 is now being used which allows for iterative code support.
+
+### Version 0.8.0
+- Added: getFirst/getLast/removeFirst/removeLast to Lists
+- Added: Dedicated implementations for toArray into TreeSets
+- Fixed: forEach methods in Maps now can use "setValue" functions.
+
+### Version 0.8.0
+- Added: ISizeProvider interface (Optimization Helper)
+- Added: ISizeProvider into most Iterable implementations (Distinct/Filter/FlatMap/ArrayFlatMap don't support it, for obvious reasons)
+- Added: ToArray function into Iterable which uses ISizeProvider to reduce overhead of duplicating arrays.
+- Added: Functions that have the same type, Int2IntFunction as example, have now a identity function.
+- Added: Functions of a BooleanValue have now alwaysTrue/False function.
+- Added: ForEachIndexed for all Iterable implementations
+- Added: RandomGenerator support (Java17), though requires self compilation
+- Added: Optimizations for HashUtils next power of function.
+- Added: toArray() now returns a cached empty array if the collection is empty.
+- Added: toArray function for AsyncBuilder
+- Added: Modularization to the library where feature can be disabled as needed. (Requires Self-Compilation)
+- Fixed: putIfAbsent now replaces defaultValues
+- Fixed: OpenHashSet/Map and their Custom Variants no longer rely on List implementations.
+- Fixed: ObjectCopyOnWriteList.of did create a ObjectArrayList instead of the CopyOnWrite variant.
+- Removed: BooleanSet and Maps that start with a Boolean classes since they can not be used anyways.
+- Breaking Change: Function classes now use the "apply/applyAs/test" format from Java itself, instead of the "get" format. This cleans up a lot of things. But will break existing function class implementations
+- Breaking Change: Classes that used PrimitiveCollection functions now default to java functions where applicable, this is to increase compat.
+- Breaking Change: Some function classes now get closer to javas terms. (Predicate/UnaryOperator etc)
+
+### Version 0.7.0
+- Added: Over 11 Million Unit Tests to this library to ensure quality.
+- Added: ArrayList size constructor now throws IllegalStateException if the size parameter is negative
+- Added: EnumMap specialized forEach implementation.
+- Added: AbstractMap.remove now delegates to its primitive counterpart.
+- Added: ConcurrentHashMap now implements ITrimmable
+- Refactor: Removed a lot of disabled code from ArraySet.
+- Removed: LinkedList.addAll(index, List) now delegates to LinkedList.addAll(index, Collection) due to no special optimization required.
+- Fixed: AbstractList.SubList.get/set/swapRemove didn't calculate their List index Properly
+- Fixed: AbstractList.SubList chains now properly if you create SubLists within SubLists.
+- Fixed: AbstractList.Iterator.add now respects Immutable/UnmodifiableLists.
+- Fixed: AbstractList.Iterator.skip/back now keep track of the last returned value for remove function to work properly.
+- Fixed: CopyOnWriteArrayList.extract/removeElements(int, int) does now proper range checks and remove elements properly.
+- Fixed: CopyOnWriteArrayList.SubList now works properly. (Reimplemented entirely)
+- Fixed: CopyOnWriteArrayList.Iterator.previous() was returning the wrong values.
+- Fixed: CopyOnWriteArrayList.Iterator.skip now skips the right amount of elements and stops where it should.
+- Fixed: LinkedList.first/last/dequeue/dequeueLast now throws NoSuchElementException when empty instead of IllegalStateException.
+- Fixed: LinkedList had an edge case where the entire reverse iterator would break if the wrong element was removed.
+- Fixed: LinkedList.extractElement now returns the correct values.
+- Fixed: AbstractMap.entrySet().remove(Object) now returns true if defaultReturnValue elements were removed.
+- Fixed: ConcurrentHashMap.remove(Object, Object) checks if the type matches before comparing against null Values.
+- Fixed: LinkedHashMap.clearAndTrim() was checking the wrong value for determining the full reset or clearing of a Map.
+- Fixed: HashMap.trim/clearToTrim() was using the wrong value to determin if something should be done.
+- Fixed: HashMap now compares empty values (0) against nullKeys when Object Variants of the type are used.
+- Fixed: ImmutableMap now compares empty values (0) against nullKeys when Object Variants of the type are used.
+- Fixed: ArrayMap.iterator(key) now throws NoSuchElementException when the element wasn't found.
+- Fixed: Linked/EnumMap array constructor was creating the wrong size values array.
+- Fixed: LinkedEnumMap.getAndMoveToFirst/Last was moving elements even if the element wasn't present.
+- Fixed: AVL/RBTreeMap.getFirst/LastKey was not throwing a NoSuchElementException if the map was empty.
+- Fixed: Map.Builder wasn't throwing a IllegalStateException when creating a negative size builder.
+- Fixed: AVL/RBTreeSet.DecendingSet.subSet(from, fromInclusive, to, toInclusive) was creating a corrupt asending subset.
+- Fixed: ArraySet throws now a IllegalStateException when trying to create it with a negative size.
+- Fixed: ArraySet.addMoveToLast(key) was crashing when a key was already present.
+- Fixed: Immutable/LinkedHashSet now keep track of their iteration index properly.
+- Fixed: LinkedHashSet.moveToFirst/Last(key) would crash if the Set was empty.
+- Fixed: LinkedHashSet.clearAndTrim() was checking the wrong value for determining the full reset or clearing of a Map.
+- Fixed: HashSet.trim/clearToTrim() was using the wrong value to determin if something should be done.
+
+
 ### Version 0.6.2
 - Added: Array only sorting function return the inputed array. This was done to allow for static final references to use the method in one go without having to make lambda wrappers. Cleaner code.
 - Added: Iterator Wrappers are now a bit more in Compliance with Java Standards.

EXTRAS.md

@@ -0,0 +1,41 @@
+### Extra Features
+
+Primitive Collections comes with a few extra features that are disabled by default.    
+These will be enabled as soon they become relevant or never at all.
+
+But some of these can be already unlocked when the target version changes.    
+
+If you compile the library for yourself you will automatically gain access to said features.
+
+### Java17 Exclusive Features    
+Java17 has some new features that can sadly not really be back-ported but the library still supports them if it is compiled with java17
+ 
+- RandomGenerator: Java17 has added [RandomGenerator.class](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/random/RandomGenerator.html).
+  This allows to use custom random implementations without having to re-implement them yourselves.
+
+
+### ModuleSettings
+Primitive Collections is a huge library.   
+But maybe you only use like 5-10 different classes.   
+Normally you would use tools like "Proguard" to get rid of classes that you don't use.    
+But since a lot of classes have dependencies on each other this would only do so much.    
+
+This is where the [ModuleSettings](ModuleSettings.json) come into play.   
+It allows you to turn of implementations as you wish and adjusts the code that everything still works.   
+
+There is 3 layers of control inside of the ModuleSettings.   
+- Modules directly at the top that turn off everything.   
+- Type Specific configurations, where you can for example turn of everything thats "Long" based.   
+- And then there is each type specific module settings.   
+
+Allowing for greater control without having to edit hundreds of lines of code.   
+On top of that:   
+Any Setting that isn't "Present" is counted as "Enabled".    
+So if you want to disable just 1 thing you can keep that 1 thing and delete the rest of the Setting.    
+It will still work as the same.    
+The default settings just come with everything so you can see what is controllable.   
+
+How to compile the Code with the ModuleSettings enabled:
+```
+/gradlew.bat generateLimitSource build -x test
+```

README.md

@@ -1,7 +1,11 @@
-![build](https://github.com/Speiger/Primitive-Collections/actions/workflows/build_validator.yml/badge.svg)
+![build](https://github.com/Speiger/Primitive-Collections/actions/workflows/build_action.yml/badge.svg)
 [![Latest Release](https://jitpack.io/v/Speiger/Primitive-Collections.svg)](https://jitpack.io/#Speiger/Primitive-Collections)
 [![License](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 ![GitHub commit activity](https://img.shields.io/github/commit-activity/m/Speiger/Primitive-Collections)      
+![Unit Tests](https://github.com/Speiger/Primitive-Collections/actions/workflows/build_tests_action.yml/badge.svg)
+![Coverage](https://gist.githubusercontent.com/Speiger/280257cd19cbe1dda3789bebd4ff65cf/raw/405abd1d2f6c19ac70f20b8b1772176f42d5c5d3/jacoco.svg)
+[![codecov](https://codecov.io/gh/Speiger/Primitive-Collections/branch/debug/graph/badge.svg?token=WSTSNJM0EN)](https://codecov.io/gh/Speiger/Primitive-Collections)
+![Tests Done](https://gist.githubusercontent.com/Speiger/280257cd19cbe1dda3789bebd4ff65cf/raw/405abd1d2f6c19ac70f20b8b1772176f42d5c5d3/tests.svg)
 # Primitive-Collections
 This is a Simple Primitive Collections Library aimed to outperform Java's Collection Library and FastUtil.  
 Both in Performance and Quality of Life Features.  
@@ -13,6 +17,10 @@ Benchmarks can be found here: [[Charts]](https://github.com/Speiger/Primitive-Co
 [Here](features.md) you find a set of features added to Primitive Collections.   
 These are designed to improve performance or to provide Quality of Life.  
 
+[Here](EXTRAS.md) you also find features that can be used when you compile the library for yourself.    
+These features are not used by default to have a wider range of compat, or require self compilation.    
+Such as pruning classes that are not needed in your code.
+
 ## Main Features:      
 - ArrayLists / LinkedLists / CopyOnWriteLists
 - HashSets/Maps (Linked & HashControl)
@@ -42,44 +50,14 @@ repositories {
     }
 }
 dependencies {
-	implementation 'com.github.Speiger:Primitive-Collections:0.6.2'
-}
-```
-Using Custom Gradle:
-```gradle
-repositories {
-    maven {
-        url = "https://maven.speiger.com/repository/main"
-    }
-}
-dependencies {
-	implementation 'de.speiger:Primitive-Collections:0.6.2'
+	implementation 'com.github.Speiger:Primitive-Collections:0.9.0'
 }
 ```
 
-<details>
-<summary>Direct: </summary>
-<p>
-
-| Version 	| Jar                                                                                                                          	| Sources                                                                                                                              	| Java Doc                                                                                                                             	|
-|---------	|------------------------------------------------------------------------------------------------------------------------------	|--------------------------------------------------------------------------------------------------------------------------------------	|--------------------------------------------------------------------------------------------------------------------------------------	|
-| 0.6.2   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.6.2/Primitive-Collections-0.6.2.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.6.2/Primitive-Collections-0.6.2-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.6.2/Primitive-Collections-0.6.2-javadoc.jar) 	|
-| 0.6.1   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.6.1/Primitive-Collections-0.6.1.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.6.1/Primitive-Collections-0.6.1-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.6.1/Primitive-Collections-0.6.1-javadoc.jar) 	|
-| 0.6.0   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.6.0/Primitive-Collections-0.6.0.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.6.0/Primitive-Collections-0.6.0-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.6.0/Primitive-Collections-0.6.0-javadoc.jar) 	|
-| 0.5.3   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.3/Primitive-Collections-0.5.3.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.3/Primitive-Collections-0.5.3-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.3/Primitive-Collections-0.5.3-javadoc.jar) 	|
-| 0.5.2   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.2/Primitive-Collections-0.5.2.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.2/Primitive-Collections-0.5.2-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.2/Primitive-Collections-0.5.2-javadoc.jar) 	|
-| 0.5.1   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.1/Primitive-Collections-0.5.1.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.1/Primitive-Collections-0.5.1-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.1/Primitive-Collections-0.5.1-javadoc.jar) 	|
-| 0.5.0   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.0/Primitive-Collections-0.5.0.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.0/Primitive-Collections-0.5.0-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.0/Primitive-Collections-0.5.0-javadoc.jar) 	|
-| 0.4.5   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.5/Primitive-Collections-0.4.5.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.5/Primitive-Collections-0.4.5-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.5/Primitive-Collections-0.4.5-javadoc.jar) 	|
-| 0.4.4   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.4/Primitive-Collections-0.4.4.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.4/Primitive-Collections-0.4.4-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.4/Primitive-Collections-0.4.4-javadoc.jar) 	|
-| 0.4.3   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.3/Primitive-Collections-0.4.3.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.3/Primitive-Collections-0.4.3-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.3/Primitive-Collections-0.4.3-javadoc.jar) 	|
-| 0.4.2   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.2/Primitive-Collections-0.4.2.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.2/Primitive-Collections-0.4.2-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.2/Primitive-Collections-0.4.2-javadoc.jar) 	|
-| 0.4.1   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.1/Primitive-Collections-0.4.1.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.1/Primitive-Collections-0.4.1-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.1/Primitive-Collections-0.4.1-javadoc.jar) 	|
-| 0.4.0   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.0/Primitive-Collections-0.4.0.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.0/Primitive-Collections-0.4.0-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.0/Primitive-Collections-0.4.0-javadoc.jar) 	|
-| 0.3.6   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.6/Primitive-Collections-0.3.6.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.6/Primitive-Collections-0.3.6-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.6/Primitive-Collections-0.3.6-javadoc.jar) 	|
-
-</p>
-</details>
+# SourceCode
+The generated Sourcecode can be automatically build,    
+but if you want to just browse around in it.    
+Check out the [Debug Branch](https://github.com/Speiger/Primitive-Collections/tree/debug/src/main/java/speiger/src/collections), which has the entire up to date code.
 
 # Contributing
 If you want to contribute.      
@@ -97,7 +75,11 @@ Please if you want to contribute follow the [Rule-Sheet](RuleSheet.md). It keeps
 # How to Build
 
 The SourceCode can be generated via:     
+```
 /gradlew.bat generateSource      
+```
 
 to generate SourceCode and build the jar:           
+```
 /gradlew.bat build      
+```

build.gradle

@@ -1,5 +1,6 @@
 plugins {
     id 'java-library'
+    id "jacoco"
 }
 
 tasks.withType(JavaCompile) {
@@ -18,7 +19,7 @@ repositories {
 }
 
 archivesBaseName = 'Primitive Collections'
-version = '0.6.2';
+version = '0.9.0';
 
 sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = JavaVersion.current();
 
@@ -44,9 +45,10 @@ configurations {
 }
 
 dependencies {
-	builderImplementation 'de.speiger:Simple-Code-Generator:1.0.7'
+	builderImplementation 'com.google.code.gson:gson:2.10'
+	builderImplementation 'de.speiger:Simple-Code-Generator:1.3.0'
     testImplementation 'junit:junit:4.12'
-    testImplementation 'com.google.guava:guava-testlib:31.0.1-jre'
+    testImplementation 'com.google.guava:guava-testlib:33.6.0-jre'
     
 }
 
@@ -62,7 +64,7 @@ task generateGithubSource(type: JavaExec) {
 	description = 'Builds the sourcecode for Github Actions'
  	classpath = sourceSets.builder.runtimeClasspath
  	main = 'speiger.src.builder.PrimitiveCollectionsBuilder'
- 	args = ['false', 'true']
+ 	args = ['silent']
 }
 
 task forceGenerateSource(type: JavaExec) {
@@ -70,17 +72,41 @@ task forceGenerateSource(type: JavaExec) {
 	description = 'Builds the sourcecode forceful'
  	classpath = sourceSets.builder.runtimeClasspath
  	main = 'speiger.src.builder.PrimitiveCollectionsBuilder'
- 	args = ['true']
+ 	args = ['force']
+}
+
+task generateTestSource(type: JavaExec) {
+	group = 'internal'
+	description = 'Builds the sourcecode for the Tests'
+ 	classpath = sourceSets.builder.runtimeClasspath
+ 	main = 'speiger.src.builder.PrimitiveCollectionsBuilder'
+ 	args = ['tests', 'silent']
+}
+
+task forceGenerateTestSource(type: JavaExec) {
+	group = 'internal'
+	description = 'Builds the sourcecode for the Tests'
+ 	classpath = sourceSets.builder.runtimeClasspath
+ 	main = 'speiger.src.builder.PrimitiveCollectionsBuilder'
+ 	args = ['tests', 'silent', 'force']
+}
+
+task generateLimitSource(type: JavaExec) {
+	group = 'internal'
+	description = 'Builds the Sourcecode with the ModuleSettings.json applied'
+ 	classpath = sourceSets.builder.runtimeClasspath
+ 	main = 'speiger.src.builder.PrimitiveCollectionsBuilder'
+ 	args = ['silent', 'load']
 }
 
 task javadocJar(type: Jar) {
     from javadoc
-    classifier = 'javadoc'
+    archiveClassifier = 'javadoc'
 }
 
 task srcJar(type: Jar) {
     from sourceSets.main.allSource
-    classifier = 'sources'
+    archiveClassifier = 'sources'
 }
 
 compileJava.dependsOn generateGithubSource
@@ -94,8 +120,152 @@ artifacts {
     archives srcJar
 }
 
+task testBooleans(type: Test) {
+	group 'tests'
+	description 'Tests all Boolean Collections'
+	filter {
+		excludeTestsMatching "speiger.src.testers.**.*"
+		includeTestsMatching "speiger.src.tests.booleans.**.*"
+	}
+	useJUnit()
+	ignoreFailures = true
+	maxHeapSize = maxMemory
+}
+
+task testBytes(type: Test) {
+	group 'tests'
+	description 'Tests all Byte Collections'
+	filter {
+		excludeTestsMatching "speiger.src.testers.**.*"
+		includeTestsMatching "speiger.src.tests.bytes.**.*"
+	}
+	useJUnit()
+	ignoreFailures = true
+	maxHeapSize = maxMemory
+	maxParallelForks = testThreads as Integer
+}
+
+task testShorts(type: Test) {
+	group 'tests'
+	description 'Tests all Short Collections'
+	filter {
+		excludeTestsMatching "speiger.src.testers.**.*"
+		includeTestsMatching "speiger.src.tests.shorts.**.*"
+	}
+	useJUnit()
+	ignoreFailures = true
+	maxHeapSize = maxMemory
+	maxParallelForks = testThreads as Integer
+}
+
+task testChars(type: Test) {
+	group 'tests'
+	description 'Tests all Character Collections'
+	filter {
+		excludeTestsMatching "speiger.src.testers.**.*"
+		includeTestsMatching "speiger.src.tests.chars.**.*"
+	}
+	useJUnit()
+	ignoreFailures = true
+	maxHeapSize = maxMemory
+	maxParallelForks = testThreads as Integer
+}
+
+task testInts(type: Test) {
+	group 'tests'
+	description 'Tests all Int Collections'
+	filter {
+		excludeTestsMatching "speiger.src.testers.**.*"
+		includeTestsMatching "speiger.src.tests.ints.**.*"
+	}
+	useJUnit()
+	ignoreFailures = true
+	maxHeapSize = maxMemory
+	maxParallelForks = testThreads as Integer
+}
+
+task testLongs(type: Test) {
+	group 'tests'
+	description 'Tests all Long Collections'
+	filter {
+		excludeTestsMatching "speiger.src.testers.**.*"
+		includeTestsMatching "speiger.src.tests.longs.**.*"
+	}
+	useJUnit()
+	ignoreFailures = true
+	maxHeapSize = maxMemory
+	maxParallelForks = testThreads as Integer
+}
+
+task testFloats(type: Test) {
+	group 'tests'
+	description 'Tests all Float Collections'
+	filter {
+		excludeTestsMatching "speiger.src.testers.**.*"
+		includeTestsMatching "speiger.src.tests.floats.**.*"
+	}
+	useJUnit()
+	ignoreFailures = true
+	maxHeapSize = maxMemory
+	maxParallelForks = testThreads as Integer
+}
+
+task testDoubles(type: Test) {
+	group 'tests'
+	description 'Tests all Double Collections'
+	filter {
+		excludeTestsMatching "speiger.src.testers.**.*"
+		includeTestsMatching "speiger.src.tests.doubles.**.*"
+	}
+	useJUnit()
+	ignoreFailures = true
+	maxHeapSize = maxMemory
+	maxParallelForks = testThreads as Integer
+}
+
+task testObjects(type: Test) {
+	group 'tests'
+	description 'Tests all Object Collections'
+	filter {
+		excludeTestsMatching "speiger.src.testers.**.*"
+		includeTestsMatching "speiger.src.tests.objects.**.*"
+	}
+	useJUnit()
+	ignoreFailures = true
+	maxHeapSize = maxMemory
+	maxParallelForks = testThreads as Integer
+}
+
+if(System.getProperty("full_test_suite", "false").toBoolean()) {
+	test.dependsOn testBooleans
+	test.dependsOn testBytes
+	test.dependsOn testShorts
+	test.dependsOn testChars
+	test.dependsOn testInts
+	test.dependsOn testLongs
+	test.dependsOn testFloats
+	test.dependsOn testDoubles
+	test.dependsOn testObjects
+}
+
 test {
-    useJUnit()
+	filter {
+		excludeTestsMatching "speiger.src.testers.**.*"
+		excludeTestsMatching "speiger.src.tests.**.*"
+		excludeTestsMatching "tests.**.*"
+	}
+	useJUnit()
+	ignoreFailures = true
+	maxHeapSize = maxMemory
+}
+
+jacocoTestReport {
+    executionData fileTree(project.buildDir.absolutePath).include("jacoco/*.exec")
+    reports {
+        xml.required = true
+        html.required = true
+        csv.required = true
+    }
 }
 
 publishing {

gradle.properties

@@ -1 +1,4 @@
 org.gradle.jvmargs=-Xmx3G
+
+maxMemory = 2048m
+testThreads = 4

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

src/builder/java/speiger/src/builder/ClassType.java

@@ -3,15 +3,15 @@ package speiger.src.builder;
 @SuppressWarnings("javadoc")
 public enum ClassType
 {
-	BOOLEAN("boolean", "Boolean", "Boolean", "booleans", "BOOLEAN", "false"),
-	BYTE("byte", "Byte", "Byte", "bytes", "BYTE", "(byte)0"),
-	SHORT("short", "Short", "Short", "shorts", "SHORT", "(short)0"),
-	CHAR("char", "Character", "Char", "chars", "CHAR", "(char)0"),
-	INT("int", "Integer", "Int", "ints", "INT", "0"),
-	LONG("long", "Long", "Long", "longs", "LONG", "0L"),
-	FLOAT("float", "Float", "Float", "floats", "FLOAT", "0F"),
-	DOUBLE("double", "Double", "Double", "doubles", "DOUBLE", "0D"),
-	OBJECT("T", "T", "Object", "objects", "OBJECT", "null");
+	BOOLEAN("boolean", "Boolean", "Boolean", "booleans", "BOOLEAN", "false", "false"),
+	BYTE("byte", "Byte", "Byte", "bytes", "BYTE", "(byte)0", "(byte)-1"),
+	SHORT("short", "Short", "Short", "shorts", "SHORT", "(short)0", "(short)-1"),
+	CHAR("char", "Character", "Char", "chars", "CHAR", "(char)0", "(char)-1"),
+	INT("int", "Integer", "Int", "ints", "INT", "0", "-1"),
+	LONG("long", "Long", "Long", "longs", "LONG", "0L", "-1L"),
+	FLOAT("float", "Float", "Float", "floats", "FLOAT", "0F", "-1F"),
+	DOUBLE("double", "Double", "Double", "doubles", "DOUBLE", "0D", "-1D"),
+	OBJECT("T", "T", "Object", "objects", "OBJECT", "null", "null");
 	
 	String keyType;
 	String classType;
@@ -19,8 +19,9 @@ public enum ClassType
 	String pathType;
 	String capType;
 	String emptyValue;
+	String invalidValue;
 	
-	private ClassType(String keyType, String classType, String fileType, String pathType, String capType, String emptyValue)
+	private ClassType(String keyType, String classType, String fileType, String pathType, String capType, String emptyValue, String invalidValue)
 	{
 		this.keyType = keyType;
 		this.classType = classType;
@@ -28,6 +29,7 @@ public enum ClassType
 		this.pathType = pathType;
 		this.capType = capType;
 		this.emptyValue = emptyValue;
+		this.invalidValue = invalidValue;
 	}
 	
 	public String getKeyType()
@@ -50,6 +52,11 @@ public enum ClassType
 		return classType;
 	}
 	
+	public String getClassPath()
+	{
+		return this == OBJECT ? "Object" : classType;
+	}
+	
 	public String getClassType(boolean value) 
 	{
 		return value && this == OBJECT ? "V" : classType;
@@ -90,6 +97,11 @@ public enum ClassType
 		return emptyValue;
 	}
 	
+	public String getInvalidValue()
+	{
+		return invalidValue;
+	}
+	
 	public boolean isObject()
 	{
 		return this == OBJECT;
@@ -102,7 +114,7 @@ public enum ClassType
 	
 	public boolean needsCustomJDKType()
 	{
-		return this == BYTE || this == SHORT || this == CHAR || this == FLOAT;
+		return this == BOOLEAN || this == BYTE || this == SHORT || this == CHAR || this == FLOAT;
 	}
 	
 	public boolean needsCast()
@@ -121,6 +133,12 @@ public enum ClassType
 		}
 	}
 	
+	public String getApply(ClassType other) {
+		if(other == BOOLEAN) return "test";
+		if(other == ClassType.OBJECT) return "apply";
+		return "applyAs"+other.getFileType();
+	}
+	
 	public String getEquals(boolean not)
 	{
 		switch(this)

src/builder/java/speiger/src/builder/GlobalVariables.java

@@ -1,452 +0,0 @@
-package speiger.src.builder;
-
-import java.nio.file.Path;
-import java.util.ArrayList;
-import java.util.LinkedHashSet;
-import java.util.List;
-import java.util.Set;
-import java.util.function.UnaryOperator;
-
-import speiger.src.builder.mappers.ArgumentMapper;
-import speiger.src.builder.mappers.IMapper;
-import speiger.src.builder.mappers.InjectMapper;
-import speiger.src.builder.mappers.LineMapper;
-import speiger.src.builder.mappers.SimpleMapper;
-import speiger.src.builder.processor.TemplateProcess;
-
-@SuppressWarnings("javadoc")
-public class GlobalVariables
-{
-	List<IMapper> operators = new ArrayList<>();
-	Set<String> flags = new LinkedHashSet<>();
-	ClassType type;
-	ClassType valueType;
-	
-	public GlobalVariables(ClassType type, ClassType subType)
-	{
-		this.type = type;
-		valueType = subType;
-	}
-	
-	public GlobalVariables createVariables()
-	{
-		addSimpleMapper("VALUE_PACKAGE", valueType.getPathType());
-		addSimpleMapper("PACKAGE", type.getPathType());
-		addSimpleMapper("CLASS_TYPE", type.getClassType());
-		addSimpleMapper("CLASS_VALUE_TYPE", valueType.getClassValueType());
-		addSimpleMapper("KEY_TYPE", type.getKeyType());
-		addSimpleMapper("KEY_SPECIAL_TYPE", type.isObject() ? "E" : type.getKeyType());
-		addSimpleMapper("VALUE_TYPE", valueType.getValueType());
-		addSimpleMapper("VALUE_SPECIAL_TYPE", valueType.isObject() ? "E" : valueType.getKeyType());
-		
-		addSimpleMapper("EMPTY_KEY_VALUE", type.getEmptyValue());
-		addSimpleMapper("EMPTY_VALUE", valueType.getEmptyValue());
-		
-		addSimpleMapper(" KEY_GENERIC_TYPE", type.isObject() ? "<"+type.getKeyType()+">" : "");
-		addSimpleMapper(" KEY_KEY_GENERIC_TYPE", type.isObject() ? "<"+type.getKeyType()+", "+type.getKeyType()+">" : "");
-		
-		addSimpleMapper(" VALUE_GENERIC_TYPE", valueType.isObject() ? "<"+valueType.getValueType()+">" : "");
-		addSimpleMapper(" VALUE_VALUE_GENERIC_TYPE", valueType.isObject() ? "<"+valueType.getValueType()+", "+valueType.getValueType()+">" : "");
-		
-		addSimpleMapper(" KEY_VALUE_GENERIC_TYPE", type.isObject() ? (valueType.isObject() ? "<"+type.getKeyType()+", "+valueType.getValueType()+">" : "<"+type.getKeyType()+">") : (valueType.isObject() ? "<"+valueType.getValueType()+">" : ""));
-		addSimpleMapper(" KEY_VALUE_VALUE_GENERIC_TYPE", type.isObject() ? (valueType.isObject() ? "<"+type.getKeyType()+", "+valueType.getValueType()+", "+valueType.getValueType()+">" : "<"+type.getKeyType()+">") : (valueType.isObject() ? "<"+valueType.getValueType()+", "+valueType.getValueType()+">" : ""));
-		
-		addSimpleMapper(" NO_GENERIC_TYPE", type.isObject() ? "<?>" : "");
-		addSimpleMapper(" NO_KV_GENERIC_TYPE", type.isObject() ? (valueType.isObject() ? "<?, ?>" : "<?>") : valueType.isObject() ? "<?>" : "");
-		addSimpleMapper(" KEY_COMPAREABLE_TYPE", type.isObject() ? "<"+type.getKeyType()+" extends Comparable<T>>" : "");
-		
-		addSimpleMapper(" KEY_SUPER_GENERIC_TYPE", type.isObject() ? "<? super "+type.getKeyType()+">" : "");
-		addSimpleMapper(" VALUE_SUPER_GENERIC_TYPE", valueType.isObject() ? "<? super "+valueType.getValueType()+">" : "");
-		addSimpleMapper(" KEY_VALUE_SUPER_GENERIC_TYPE", type.isObject() ? (valueType.isObject() ? "<? super "+type.getKeyType()+", ? super "+valueType.getValueType()+">" : "<? super "+type.getKeyType()+">") : (valueType.isObject() ? "<? super "+valueType.getValueType()+">" : ""));
-		
-		addSimpleMapper(" KEY_ENUM_VALUE_GENERIC_TYPE", type.isObject() ? (valueType.isObject() ? "<"+type.getKeyType()+" extends Enum<"+type.getKeyType()+">, "+valueType.getValueType()+">" : "<"+type.getKeyType()+" extends Enum<"+type.getKeyType()+">>") : (valueType.isObject() ? "<"+valueType.getValueType()+">" : ""));
-		addSimpleMapper(" KEY_VALUE_ENUM_GENERIC_TYPE", type.isObject() ? (valueType.isObject() ? "<"+type.getKeyType()+", "+valueType.getValueType()+" extends Enum<"+valueType.getValueType()+">>" : "<"+type.getKeyType()+">") : (valueType.isObject() ? "<"+valueType.getValueType()+" extends Enum<"+valueType.getValueType()+">>" : ""));
-		
-		addInjectMapper(" KEY_SPECIAL_GENERIC_TYPE", type.isObject() ? "<%s>" : "").removeBraces().setBraceType("<>");
-		addInjectMapper(" VALUE_SPECIAL_GENERIC_TYPE", valueType.isObject() ? "<%s>" : "").removeBraces().setBraceType("<>");
-		addInjectMapper(" KSK_GENERIC_TYPE", type.isObject() ? "<%s, "+type.getKeyType()+">" : "<%s>").removeBraces().setBraceType("<>");
-		addInjectMapper(" KKS_GENERIC_TYPE", type.isObject() ? "<"+type.getKeyType()+", %s>" : "<%s>").removeBraces().setBraceType("<>");
-		addArgumentMapper(" KSS_GENERIC_TYPE", type.isObject() ? "<%1$s, %2$s>" : "<%2$s>").removeBraces().setBraceType("<>");		
-		addInjectMapper(" VSV_GENERIC_TYPE", valueType.isObject() ? "<%s, "+valueType.getValueType()+">" : "<%s>").removeBraces().setBraceType("<>");
-		addInjectMapper(" VVS_GENERIC_TYPE", valueType.isObject() ? "<"+valueType.getValueType()+", %s>" : "<%s>").removeBraces().setBraceType("<>");
-		addArgumentMapper(" VSS_GENERIC_TYPE", valueType.isObject() ? "<%1$s, %2$s>" : "<%2$s>").removeBraces().setBraceType("<>");		
-
-		addSimpleMapper(" GENERIC_KEY_BRACES", type.isObject() ? " <"+type.getKeyType()+">" : "");
-		addSimpleMapper(" GENERIC_VALUE_BRACES", valueType.isObject() ? " <"+valueType.getValueType()+">" : "");
-		addInjectMapper(" GENERIC_SPECIAL_KEY_BRACES", type.isObject() ? " <%s>" : "").removeBraces().setBraceType("<>");
-		addInjectMapper(" GENERIC_SPECIAL_VALUE_BRACES", valueType.isObject() ? " <%s>" : "").removeBraces().setBraceType("<>");
-		addSimpleMapper(" GENERIC_KEY_ENUM_VALUE_BRACES", type.isObject() ? (valueType.isObject() ? " <"+type.getKeyType()+" extends Enum<"+type.getKeyType()+">, "+valueType.getValueType()+">" : " <"+type.getKeyType()+" extends Enum<"+type.getKeyType()+">>") : (valueType.isObject() ? " <"+valueType.getValueType()+">" : ""));
-		
-		addInjectMapper(" GENERIC_KEY_SPECIAL_BRACES", type.isObject() ? " <"+type.getKeyType()+", %s>" : " <%s>").removeBraces().setBraceType("<>");
-		addInjectMapper(" GENERIC_VALUE_SPECIAL_BRACES", valueType.isObject() ? " <"+valueType.getKeyType()+", %s>" : " <%s>").removeBraces().setBraceType("<>");
-		
-		addSimpleMapper(" GENERIC_KEY_VALUE_BRACES", type.isObject() ? (valueType.isObject() ? " <"+type.getKeyType()+", "+valueType.getValueType()+">" : " <"+type.getKeyType()+">") : (valueType.isObject() ? " <"+valueType.getValueType()+">" : ""));
-		addSimpleMapper(" COMPAREABLE_KEY_BRACES", type.isObject() ? " <"+type.getKeyType()+" extends Comparable<T>>" : "");
-		addSimpleMapper("KV_BRACES", type.isObject() || valueType.isObject() ? "<>" : "");
-		addSimpleMapper("BRACES", type.isObject() ? "<>" : "");
-		if(type.needsCustomJDKType())
-		{
-			addSimpleMapper("JAVA_TYPE", type.getCustomJDKType().getKeyType());
-			addSimpleMapper("SANITY_CAST", "castTo"+type.getFileType());
-		}
-		addSimpleMapper("JAVA_CLASS", type.getCustomJDKType().getClassType());
-		if(valueType.needsCustomJDKType())
-		{
-			addSimpleMapper("SANITY_CAST_VALUE", "castTo"+valueType.getFileType());
-		}
-		addComment("@ArrayType", "@param <%s> the type of array that the operation should be applied");
-		addComment("@Type", "@param <%s> the type of elements maintained by this Collection");
-		addValueComment("@ValueArrayType", "@param <%s> the type of array that the operation should be applied");
-		addValueComment("@ValueType", "@param <%s> the type of elements maintained by this Collection");
-		addAnnontion("@PrimitiveOverride", "@Override");
-		addSimpleMapper("@PrimitiveDoc", "");
-		addAnnontion("@Primitive", "@Deprecated");
-		addValueAnnontion("@ValuePrimitiveOverride", "@Override");
-		addValueAnnontion("@ValuePrimitive", "@Deprecated");
-		return this;
-	}
-	
-	public GlobalVariables createHelperVariables()
-	{
-		createHelperVars(type, false, "KEY");
-		createHelperVars(valueType, true, "VALUE");
-		return this;
-	}
-	
-	private void createHelperVars(ClassType type, boolean value, String fix)
-	{
-		addArgumentMapper("EQUALS_"+fix+"_TYPE", "Objects.equals(%2$s, "+(type.isObject() ? "%1$s" : fix+"_TO_OBJ(%1$s)")+")").removeBraces();
-		addInjectMapper(fix+"_EQUALS_NOT_NULL", type.getComparableValue()+" != "+(type.isPrimitiveBlocking() || type.needsCast() ? type.getEmptyValue() : "0")).removeBraces();
-		addInjectMapper(fix+"_EQUALS_NULL", type.getComparableValue()+" == "+(type.isPrimitiveBlocking() || type.needsCast() ? type.getEmptyValue() : "0")).removeBraces();
-		addArgumentMapper(fix+"_EQUALS_NOT", type.getEquals(true)).removeBraces();
-		addArgumentMapper(fix+"_EQUALS", type.getEquals(false)).removeBraces();
-		
-		addArgumentMapper("COMPAREABLE_TO_"+fix, type.isObject() ? "((Comparable<"+type.getKeyType(value)+">)%1$s).compareTo(("+type.getKeyType(value)+")%2$s)" : type.getClassType(value)+".compare(%1$s, %2$s)").removeBraces();
-		addArgumentMapper("COMPARE_TO_"+fix, type.isObject() ? "%1$s.compareTo(%2$s)" : type.getClassType(value)+".compare(%1$s, %2$s)").removeBraces();
-		
-		addInjectMapper(fix+"_TO_OBJ", type.isObject() ? "%s" : type.getClassType(value)+".valueOf(%s)").removeBraces();
-		addInjectMapper("OBJ_TO_"+fix, type.isObject() ? "%s" : "%s."+type.getKeyType(value)+"Value()").removeBraces();
-		addInjectMapper("CLASS_TO_"+fix, type.isObject() ? "("+type.getKeyType(value)+")%s" : "(("+type.getClassType(value)+")%s)."+type.getKeyType(value)+"Value()").removeBraces();
-		
-		addInjectMapper(fix+"_TO_HASH", type.isObject() ? "Objects.hashCode(%s)" : type.getClassType(value)+".hashCode(%s)").removeBraces();
-		addInjectMapper(fix+"_TO_STRING", type.isObject() ? "Objects.toString(%s)" : type.getClassType(value)+".toString(%s)").removeBraces();
-		
-		addSimpleMapper("CAST_"+fix+"_ARRAY ", type.isObject() ? "("+fix+"_TYPE[])" : "");
-		addSimpleMapper("EMPTY_"+fix+"_ARRAY", type.isObject() ? "("+fix+"_TYPE[])ARRAYS.EMPTY_ARRAY" : "ARRAYS.EMPTY_ARRAY");
-		addInjectMapper("NEW_"+fix+"_ARRAY", type.isObject() ? "("+fix+"_TYPE[])new Object[%s]" : "new "+fix+"_TYPE[%s]").removeBraces();
-		addInjectMapper("NEW_SPECIAL_"+fix+"_ARRAY", type.isObject() ? "(E[])new Object[%s]" : "new "+fix+"_TYPE[%s]").removeBraces();
-		addInjectMapper("NEW_CLASS"+(value ? "_VALUE" : "")+"_ARRAY", type.isObject() ? "(CLASS_TYPE[])new Object[%s]" : "new CLASS_TYPE[%s]").removeBraces();
-	}
-	
-	public GlobalVariables createPreFunctions()
-	{
-		addSimpleMapper("ENTRY_SET", type.getFileType().toLowerCase()+"2"+valueType.getFileType()+"EntrySet");
-		return this;
-	}
-	
-	public GlobalVariables createClassTypes()
-	{
-		addSimpleMapper("JAVA_PREDICATE", type.isPrimitiveBlocking() ? "" : type.getCustomJDKType().getFileType()+"Predicate");
-		addSimpleMapper("JAVA_CONSUMER", type.isPrimitiveBlocking() ? "" : "java.util.function."+type.getCustomJDKType().getFileType()+"Consumer");
-		addSimpleMapper("JAVA_SUPPLIER", type.isPrimitiveBlocking() ? "" : "java.util.function."+type.getCustomJDKType().getFileType()+"Supplier");
-		addSimpleMapper("JAVA_FUNCTION", type.getFunctionClass(valueType));
-		addSimpleMapper("JAVA_BINARY_OPERATOR", type == ClassType.BOOLEAN ? "" : (type.isObject() ? "java.util.function.BinaryOperator" : "java.util.function."+type.getCustomJDKType().getFileType()+"BinaryOperator"));
-		addSimpleMapper("JAVA_UNARY_OPERATOR", type.isObject() ? "BinaryOperator" : type == ClassType.BOOLEAN ? "" : type.getCustomJDKType().getFileType()+"UnaryOperator");
-		addSimpleMapper("JAVA_SPLIT_ITERATOR", type.isPrimitiveBlocking() ? "Spliterator" : "Of"+type.getCustomJDKType().getFileType());
-		addSimpleMapper("JAVA_STREAM", type.isPrimitiveBlocking() ? "" : type.getCustomJDKType().getFileType()+"Stream");
-		addSimpleMapper("JAVA_BUFFER", type.getFileType()+"Buffer");
-		
-		//Final Classes
-		addClassMapper("ARRAY_LIST", "ArrayList");
-		addAbstractMapper("COPY_ON_WRITE_LIST", "CopyOnWrite%sArrayList");
-		addClassMapper("ASYNC_BUILDER", "AsyncBuilder");
-		addClassMapper("LINKED_LIST", "LinkedList");
-		addAbstractMapper("IMMUTABLE_LIST", "Immutable%sList");
-		addClassMapper("ARRAY_FIFO_QUEUE", "ArrayFIFOQueue");
-		addClassMapper("ARRAY_PRIORITY_QUEUE", "ArrayPriorityQueue");
-		addClassMapper("HEAP_PRIORITY_QUEUE", "HeapPriorityQueue");
-		addClassMapper("LINKED_CUSTOM_HASH_SET", "LinkedOpenCustomHashSet");
-		addClassMapper("LINKED_HASH_SET", "LinkedOpenHashSet");
-		addAbstractMapper("IMMUTABLE_HASH_SET", "Immutable%sOpenHashSet");
-		addClassMapper("CUSTOM_HASH_SET", "OpenCustomHashSet");
-		addClassMapper("HASH_SET", "OpenHashSet");
-		addAbstractBiMapper("IMMUTABLE_HASH_MAP", "Immutable%sOpenHashMap", "2");
-		addBiClassMapper("LINKED_CUSTOM_HASH_MAP", "LinkedOpenCustomHashMap", "2");
-		addBiClassMapper("LINKED_HASH_MAP", "LinkedOpenHashMap", "2");
-		addBiClassMapper("CUSTOM_HASH_MAP", "OpenCustomHashMap", "2");
-		addBiClassMapper("CONCURRENT_HASH_MAP", "ConcurrentOpenHashMap", "2");
-		addBiClassMapper("AVL_TREE_MAP", "AVLTreeMap", "2");
-		addBiClassMapper("RB_TREE_MAP", "RBTreeMap", "2");
-		addFunctionValueMappers("LINKED_ENUM_MAP", valueType.isObject() ? "LinkedEnum2ObjectMap" : "LinkedEnum2%sMap");
-		addFunctionValueMappers("ENUM_MAP", valueType.isObject() ? "Enum2ObjectMap" : "Enum2%sMap");
-		addBiClassMapper("HASH_MAP", "OpenHashMap", "2");
-		addBiClassMapper("ARRAY_MAP", "ArrayMap", "2");
-		addBiClassMapper("IMMUTABLE_PAIR", "ImmutablePair", "");
-		addBiClassMapper("MUTABLE_PAIR", "MutablePair", "");
-		addClassMapper("RB_TREE_SET", "RBTreeSet");
-		addClassMapper("AVL_TREE_SET", "AVLTreeSet");
-		addClassMapper("ARRAY_SET", "ArraySet");
-		
-		//Abstract Classes
-		addAbstractMapper("ABSTRACT_COLLECTION", "Abstract%sCollection");
-		addAbstractMapper("ABSTRACT_PRIORITY_QUEUE", "Abstract%sPriorityQueue");
-		addAbstractMapper("ABSTRACT_SET", "Abstract%sSet");
-		addAbstractMapper("ABSTRACT_LIST", "Abstract%sList");
-		addAbstractBiMapper("ABSTRACT_MAP", "Abstract%sMap", "2");
-		addClassMapper("SUB_LIST", "SubList");
-		addAbstractMapper("BASE_TASK", "Base%sTask");
-		
-		//Helper Classes
-		addClassMapper("LISTS", "Lists");
-		addClassMapper("SETS", "Sets");
-		addClassMapper("COLLECTIONS", "Collections");
-		addClassMapper("ARRAYS", "Arrays");
-		addClassMapper("PRIORITY_QUEUES", "PriorityQueues");
-		addClassMapper("SPLIT_ITERATORS", "Splititerators");
-		addClassMapper("ITERATORS", "Iterators");
-		addClassMapper("ITERABLES", "Iterables");
-		addBiClassMapper("MAPS", "Maps", "2");
-		
-		//Interfaces
-		addClassMapper("LIST_ITERATOR", "ListIterator");
-		addClassMapper("BI_ITERATOR", "BidirectionalIterator");
-		addBiClassMapper("BI_CONSUMER", "Consumer", "");
-		addClassMapper("BI_TO_OBJECT_CONSUMER", "ObjectConsumer");
-		addAbstractMapper("BI_FROM_OBJECT_CONSUMER", "Object%sConsumer");
-		addClassMapper("SPLIT_ITERATOR", "Splititerator");
-		addClassMapper("ITERATOR", "Iterator");
-		addClassMapper("ITERABLE", "Iterable");
-		addClassMapper("COLLECTION", "Collection");
-		addClassMapper("TO_OBJECT_FUNCTION", "2ObjectFunction");
-		addBiClassMapper("FUNCTION", "Function", "2");
-		addClassMapper("LIST_ITER", "ListIter");
-		addClassMapper("LIST", "List");
-		addBiClassMapper("NAVIGABLE_MAP", "NavigableMap", "2");
-		addBiClassMapper("ORDERED_MAP", "OrderedMap", "2");
-		addBiClassMapper("SORTED_MAP", "SortedMap", "2");
-		addBiClassMapper("CONCURRENT_MAP", "ConcurrentMap", "2");
-		addBiClassMapper("MAP", "Map", "2");
-		addClassMapper("NAVIGABLE_SET", "NavigableSet");
-		addBiClassMapper("PAIR", "Pair", "");
-		addClassMapper("PRIORITY_QUEUE", "PriorityQueue");
-		addClassMapper("PRIORITY_DEQUEUE", "PriorityDequeue");
-		addClassMapper("PREDICATE", "2BooleanFunction");
-		addClassMapper("SORTED_SET", "SortedSet");
-		addClassMapper("ORDERED_SET", "OrderedSet");
-		addClassMapper("SET", "Set");
-		addClassMapper("STRATEGY", "Strategy");
-		addClassMapper("STACK", "Stack");
-		addClassMapper("SUPPLIER", "Supplier");
-		addAbstractMapper("SINGLE_UNARY_OPERATOR", "%1$s%1$sUnaryOperator");
-		addClassMapper("TASK", "Task");
-		addBiClassMapper("UNARY_OPERATOR", "UnaryOperator", "");
-		if(type.isObject())
-		{
-			if(!valueType.isObject()) addSimpleMapper("VALUE_CONSUMER", valueType.getFileType()+"Consumer");
-			else addSimpleMapper("VALUE_CONSUMER", "Consumer");
-			addSimpleMapper("CONSUMER", "Consumer");
-			addSimpleMapper("COMPARATOR", "Comparator");	
-			addSimpleMapper("IARRAY", "IObjectArray");
-		}
-		else
-		{
-			if(valueType.isObject()) 
-			{
-				addSimpleMapper("VALUE_CONSUMER", "Consumer");
-				addSimpleMapper("CONSUMER", type.getFileType()+"Consumer");
-			}
-			else addClassMapper("CONSUMER", "Consumer");
-			addClassMapper("COMPARATOR", "Comparator");
-			addFunctionMappers("IARRAY", "I%sArray");
-		}
-		return this;
-	}
-	
-	public GlobalVariables createFunctions()
-	{
-		addSimpleMapper("APPLY_KEY_VALUE", type.isObject() ? "apply" : "applyAs"+type.getNonFileType());
-		addSimpleMapper("APPLY_VALUE", valueType.isObject() ? "apply" : "applyAs"+valueType.getNonFileType());
-		addSimpleMapper("APPLY_CAST", "applyAs"+type.getCustomJDKType().getNonFileType());
-		addSimpleMapper("APPLY", type.isObject() ? "apply" : "applyAs"+type.getNonFileType());
-		addFunctionValueMapper("BULK_MERGE", "mergeAll");
-		addFunctionValueMappers("COMPUTE_IF_ABSENT", "compute%sIfAbsent");
-		addFunctionValueMappers("COMPUTE_IF_PRESENT", "compute%sIfPresent");
-		addFunctionValueMapper("COMPUTE", "compute");
-		addFunctionMapper("DEQUEUE_LAST", "dequeueLast");
-		addFunctionMapper("DEQUEUE", "dequeue");
-		addFunctionMappers("POLL_FIRST_ENTRY_KEY", "pollFirst%sKey");
-		addFunctionMappers("POLL_LAST_ENTRY_KEY", "pollLast%sKey");
-		addFunctionMapper("POLL_FIRST_KEY", "pollFirst");
-		addFunctionMapper("POLL_LAST_KEY", "pollLast");
-		addFunctionMappers("FIRST_ENTRY_KEY", "first%sKey");
-		addFunctionValueMappers("FIRST_ENTRY_VALUE", "first%sValue");
-		addFunctionMapper("FIRST_KEY", "first");
-		addFunctionMappers("LAST_ENTRY_KEY", "last%sKey");
-		addFunctionValueMappers("LAST_ENTRY_VALUE", "last%sValue");
-		addFunctionMappers("ENTRY_KEY", "get%sKey");
-		addFunctionValueMappers("ENTRY_VALUE", "get%sValue");
-		addFunctionMappers("KEY_ENTRY", "set%sKey");
-		addFunctionValueMappers("VALUE_ENTRY", "set%sValue");
-		addFunctionMapper("GET_KEY", "get");
-		if(type.isObject()) addFunctionValueMapper("GET_VALUE", valueType.isObject() ? "getObject" : "get");
-		else addSimpleMapper("GET_VALUE", "get");
-		addSimpleMapper("GET_JAVA", type.isObject() ? "get" : "getAs"+type.getCustomJDKType().getNonFileType());
-		addFunctionMapper("LAST_KEY", "last");
-		addFunctionValueMapper("MERGE", "merge");
-		addFunctionMapper("NEXT", "next");
-		addFunctionMapper("PREVIOUS", "previous");
-		addFunctionMapper("REMOVE_SWAP", "swapRemove");
-		if(type.isObject()) addFunctionMapper("REMOVE_VALUE", "rem");
-		else addSimpleMapper("REMOVE_VALUE", "remove");
-		addFunctionMapper("REMOVE_KEY", "rem");
-		addFunctionMapper("REMOVE_LAST", "removeLast");
-		addFunctionMapper("REMOVE", "remove");
-		addFunctionValueMappers("REPLACE_VALUES", valueType.isObject() ? "replaceObjects" : "replace%ss");
-		addFunctionMappers("REPLACE", type.isObject() ? "replaceObjects" : "replace%ss");
-		addFunctionMappers("SORT", "sort%ss");
-		addFunctionValueMappers("SUPPLY_IF_ABSENT", "supply%sIfAbsent");
-		addSimpleMapper("VALUE_TEST_VALUE", valueType.isObject() ? "getBoolean" : "get");
-		addSimpleMapper("TEST_VALUE", type.isObject() ? "getBoolean" : "get");
-		addSimpleMapper("NEW_STREAM", type.isPrimitiveBlocking() ? "" : type.getCustomJDKType().getKeyType()+"Stream");
-		addSimpleMapper("TO_ARRAY", "to"+type.getNonFileType()+"Array");
-		addSimpleMapper("[SPACE]", " ");
-		return this;
-	}
-	
-	public GlobalVariables createFlags()
-	{
-		flags.add("TYPE_"+type.getCapType());
-		flags.add("VALUE_"+valueType.getCapType());
-		if(type == valueType) flags.add("SAME_TYPE");
-		if(type.hasFunction(valueType)) flags.add("JDK_FUNCTION");
-		if(!type.needsCustomJDKType()) flags.add("JDK_TYPE");
-		if(!type.isPrimitiveBlocking()) flags.add("PRIMITIVES");
-		if(!valueType.isPrimitiveBlocking()) flags.add("VALUE_PRIMITIVES");
-		if(valueType.needsCustomJDKType()) flags.add("JDK_VALUE");
-		return this;
-	}
-	
-	public TemplateProcess create(String fileName, String splitter, boolean valueOnly)
-	{
-		TemplateProcess process = new TemplateProcess(String.format(fileName+".java", (splitter != null ? type.getFileType()+splitter+valueType.getFileType() : (valueOnly ? valueType : type).getFileType())));
-		process.setPathBuilder(new PathBuilder(type.getPathType()));
-		process.addFlags(flags);
-		process.addMappers(operators);
-		return process;
-	}
-	
-	public ClassType getType()
-	{
-		return type;
-	}
-	
-	private void addClassMapper(String pattern, String replacement)
-	{
-		operators.add(new SimpleMapper(type.name()+"[VALUE_"+pattern+"]", "VALUE_"+pattern, valueType.getFileType()+replacement));
-		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, type.getFileType()+replacement));
-	}
-	
-	private void addBiClassMapper(String pattern, String replacement, String splitter)
-	{
-		operators.add(new SimpleMapper(type.name()+"[KEY_"+pattern+"]", "KEY_"+pattern, type.getFileType()+splitter+type.getFileType()+replacement));
-		operators.add(new SimpleMapper(type.name()+"[VALUE_"+pattern+"]", "VALUE_"+pattern, valueType.getFileType()+splitter+valueType.getFileType()+replacement));
-		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, type.getFileType()+splitter+valueType.getFileType()+replacement));
-	}
-	
-	private void addAbstractMapper(String pattern, String replacement)
-	{
-		operators.add(new SimpleMapper(type.name()+"[VALUE_"+pattern+"]", "VALUE_"+pattern, String.format(replacement, valueType.getFileType())));
-		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, String.format(replacement, type.getFileType())));		
-	}
-	
-	private void addAbstractBiMapper(String pattern, String replacement, String splitter) 
-	{
-		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, String.format(replacement, type.getFileType()+splitter+valueType.getFileType())));
-	}
-	
-	private void addFunctionMapper(String pattern, String replacement)
-	{
-		operators.add(new SimpleMapper(type.name()+"[VALUE_"+pattern+"]", "VALUE_"+pattern, replacement+valueType.getNonFileType()));
-		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, replacement+type.getNonFileType()));
-	}
-	
-	private void addFunctionValueMapper(String pattern, String replacement)
-	{
-		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, replacement+valueType.getNonFileType()));
-	}
-	
-	private void addFunctionMappers(String pattern, String replacement)
-	{
-		operators.add(new SimpleMapper(type.name()+"[VALUE_"+pattern+"]", "VALUE_"+pattern, String.format(replacement, valueType.getNonFileType())));		
-		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, String.format(replacement, type.getNonFileType())));		
-	}
-	
-	private void addFunctionValueMappers(String pattern, String replacement)
-	{
-		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, String.format(replacement, valueType.getNonFileType())));		
-	}
-	
-	private void addSimpleMapper(String pattern, String replacement)
-	{
-		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, replacement));
-	}
-	
-	private void addAnnontion(String pattern, String value)
-	{
-		if(type == ClassType.OBJECT) operators.add(new LineMapper(type.name()+"["+pattern+"]", pattern));
-		else operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, value));
-	}
-	
-	private void addValueAnnontion(String pattern, String value)
-	{
-		if(valueType == ClassType.OBJECT) operators.add(new LineMapper(valueType.name()+"["+pattern+"]", pattern));
-		else operators.add(new SimpleMapper(valueType.name()+"["+pattern+"]", pattern, value));
-	}
-	
-	private void addComment(String pattern, String value)
-	{
-		if(type == ClassType.OBJECT) operators.add(new InjectMapper(type.name()+"["+pattern+"]", pattern, value).removeBraces());
-		else operators.add(new LineMapper(type.name()+"["+pattern+"]", pattern));
-	}
-	
-	private void addValueComment(String pattern, String value)
-	{
-		if(valueType == ClassType.OBJECT) operators.add(new InjectMapper(valueType.name()+"["+pattern+"]", pattern, value).removeBraces());
-		else operators.add(new LineMapper(valueType.name()+"["+pattern+"]", pattern));
-	}
-	
-	private InjectMapper addInjectMapper(String pattern, String replacement)
-	{
-		InjectMapper mapper = new InjectMapper(type.name()+"["+pattern+"]", pattern, replacement);
-		operators.add(mapper);
-		return mapper;
-	}
-	
-	private ArgumentMapper addArgumentMapper(String pattern, String replacement)
-	{
-		return addArgumentMapper(pattern, replacement, ", ");
-	}
-	
-	private ArgumentMapper addArgumentMapper(String pattern, String replacement, String splitter)
-	{
-		ArgumentMapper mapper = new ArgumentMapper(type.name()+"["+pattern+"]", pattern, replacement, splitter);
-		operators.add(mapper);
-		return mapper;
-	}
-	
-	class PathBuilder implements UnaryOperator<Path>
-	{
-		String before;
-		
-		public PathBuilder(String before)
-		{
-			this.before = before;
-		}
-		
-		@Override
-		public Path apply(Path t)
-		{
-			return t.subpath(0, 6).resolve(before).resolve(t.subpath(6, t.getNameCount()));
-		}
-	}
-}

src/builder/java/speiger/src/builder/ModulePackage.java

@@ -0,0 +1,155 @@
+package speiger.src.builder;
+
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
+import java.util.function.Predicate;
+import java.util.function.UnaryOperator;
+
+import speiger.src.builder.mappers.IMapper;
+import speiger.src.builder.processor.TemplateProcess;
+
+@SuppressWarnings("javadoc")
+public class ModulePackage
+{
+	private static final BiConsumer<String, RequiredType> VOID = (K, V) -> {};
+	public static final ClassType[] TYPE = ClassType.values();
+	final ClassType keyType;
+	final ClassType valueType;
+	Set<String> blocked = new HashSet<>();
+	Map<String, String> nameRemapper = new HashMap<>();
+	Map<String, String> splitters = new HashMap<>();
+	List<Predicate<String>> blockedFilters = new ArrayList<>();
+	List<IMapper> mappers = new ArrayList<>();
+	Set<String> flags = new LinkedHashSet<>();
+	Set<String> globalFlags;
+	Map<String, Integer> flaggedValues = new HashMap<>();
+	BiConsumer<String, RequiredType> requirements = VOID;
+	
+	public ModulePackage(Set<String> globalFlags, ClassType keyType, ClassType valueType) {
+		this.globalFlags = globalFlags;
+		this.keyType = keyType;
+		this.valueType = valueType;
+	}
+	
+	public void finish() {
+		requirements = VOID;
+		mappers.sort(Comparator.comparing(IMapper::getSearchValue, Comparator.comparingInt(String::length).reversed()));
+		mappers.sort(Comparator.comparing(IMapper::getSearchValue, this::sort));
+	}
+	
+	public void setRequirements(BiConsumer<String, RequiredType> requirements) {
+		this.requirements = requirements;
+	}
+	
+	public boolean isSame() {
+		return keyType == valueType;
+	}
+	
+	public boolean isEnumValid() {
+		return keyType == ClassType.OBJECT;
+	}
+	
+	public ClassType getKeyType() {
+		return keyType;
+	}
+	
+	public ClassType getValueType() {
+		return valueType;
+	}
+	
+	public void addFlag(String flag) {
+		flags.add(flag);
+	}
+	
+	public void addGlobalFlag(String flag) {
+		globalFlags.add(flag);
+	}
+	
+	public void addValue(String key, int value) {
+		flaggedValues.put(key, value);
+	}
+	
+	public void addRequirement(String fileName, RequiredType type) {
+		requirements.accept(fileName, type);
+	}
+	
+	public void addMapper(IMapper mapper) {
+		mappers.add(mapper);
+	}
+	
+	public void addBlockedFilter(Predicate<String> filter) {
+		blockedFilters.add(filter);
+	}
+	
+	public void addBlockedFiles(String... names) {
+		blocked.addAll(Arrays.asList(names));
+	}
+	
+	public void addSplitter(String fileName, String splitter) {
+		splitters.put(fileName, splitter);
+	}
+	
+	public void addRemapper(String fileName, String actualName) {
+		nameRemapper.put(fileName, actualName);
+	}
+	
+	public void process(String fileName, Consumer<TemplateProcess> result) {
+		if(isBlocked(fileName)) return;
+		String splitter = String.format(splitters.getOrDefault(fileName, keyType.getFileType()), keyType.getFileType(), valueType.getFileType());
+		String newName = String.format(nameRemapper.getOrDefault(fileName, "%s"+fileName), splitter);
+		TemplateProcess process = new TemplateProcess(newName+".java");
+		process.setPathBuilder(new PathBuilder(keyType.getPathType()));
+		process.addFlags(flags);
+		process.addFlags(globalFlags);
+		process.addMappers(mappers);
+		process.addValues(flaggedValues);
+		result.accept(process);
+	}
+	
+	private boolean isBlocked(String fileName) {
+		if(blocked.contains(fileName)) return true;
+		for(int i = 0,m=blockedFilters.size();i<m;i++) {
+			if(blockedFilters.get(i).test(fileName)) return true;
+		}
+		return false;
+	}
+	
+	public static List<ModulePackage> createPackages(Set<String> globalFlags) {
+		List<ModulePackage> list = new ArrayList<>();
+		for(ClassType key : TYPE) {
+			for(ClassType value : TYPE) {
+				list.add(new ModulePackage(globalFlags, key, value));
+			}
+		}
+		return list;
+	}
+	
+	private int sort(String key, String value) {
+		if(value.contains(key)) return 1;
+		else if(key.contains(value)) return -1;
+		return 0;
+	}
+	
+	class PathBuilder implements UnaryOperator<Path> {
+		String before;
+		
+		public PathBuilder(String before) {
+			this.before = before;
+		}
+		
+		@Override
+		public Path apply(Path t) {
+			return t.subpath(0, 6).resolve(before).resolve(t.subpath(6, t.getNameCount()));
+		}
+	}
+}

src/builder/java/speiger/src/builder/PrimitiveCollectionsBuilder.java

@@ -6,7 +6,8 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.ArrayList;
-import java.util.EnumSet;
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
@@ -16,177 +17,157 @@ import java.util.StringJoiner;
 import java.util.function.Consumer;
 import java.util.stream.Stream;
 
+import speiger.src.builder.modules.AsyncModule;
+import speiger.src.builder.modules.BaseModule;
+import speiger.src.builder.modules.CollectionModule;
+import speiger.src.builder.modules.FunctionModule;
+import speiger.src.builder.modules.JavaModule;
+import speiger.src.builder.modules.ListModule;
+import speiger.src.builder.modules.MapModule;
+import speiger.src.builder.modules.PairModule;
+import speiger.src.builder.modules.PrioQueueModule;
+import speiger.src.builder.modules.SetModule;
 import speiger.src.builder.processor.TemplateProcess;
 import speiger.src.builder.processor.TemplateProcessor;
 
 @SuppressWarnings("javadoc")
 public class PrimitiveCollectionsBuilder extends TemplateProcessor
 {
-	Map<String, EnumSet<ClassType>> blocked = new HashMap<>();
-	Map<String, String> nameRemapper = new HashMap<>();
-	Map<String, String> biRequired = new HashMap<>();
-	Set<String> enumRequired = new HashSet<>();
-	public static final ClassType[] TYPE = ClassType.values();
-	List<GlobalVariables> variables = new ArrayList<>();
-	List<GlobalVariables> biVariables = new ArrayList<>();
-	List<GlobalVariables> enumVariables = new ArrayList<>();
+	private static final int SPECIAL = 0x1; //Detects if the Builder is generating tests
+	private static final int LOAD = 0x2; //If Configs should be loaded
+	private static final int ANTI_SAVE = SPECIAL | LOAD; //If save should be disabled since load/save shouldn't happen at the same time.
+	private static final int SAVE = 0x4; //if the configuration should be created
+	Set<String> globalFlags = new HashSet<>();
+	List<ModulePackage> simplePackages = new ArrayList<>();
+	List<ModulePackage> biPackages = new ArrayList<>();
+	List<ModulePackage> enumPackages = new ArrayList<>();
+	Map<String, RequiredType> requirements = new HashMap<>();
+	SettingsManager manager = new SettingsManager();
+	int flags;
 	
-	public PrimitiveCollectionsBuilder()
-	{
+	public PrimitiveCollectionsBuilder() {
 		this(false);
 	}
 	
-	public PrimitiveCollectionsBuilder(boolean silencedSuccess)
-	{
+	public PrimitiveCollectionsBuilder(boolean silencedSuccess) {
 		super(silencedSuccess, Paths.get("src/builder/resources/speiger/assets/collections/templates/"), Paths.get("src/main/java/speiger/src/collections/"), Paths.get("src/builder/resources/speiger/assets/collections/"));
 	}
 	
-	public PrimitiveCollectionsBuilder(Path sourceFolder, Path outputFolder, Path dataFolder)
-	{
+	public PrimitiveCollectionsBuilder(Path sourceFolder, Path outputFolder, Path dataFolder) {
 		this(false, sourceFolder, outputFolder, dataFolder);
 	}
 	
-	public PrimitiveCollectionsBuilder(boolean silencedSuccess, Path sourceFolder, Path outputFolder, Path dataFolder)
-	{
+	public PrimitiveCollectionsBuilder(boolean silencedSuccess, Path sourceFolder, Path outputFolder, Path dataFolder) {
 		super(silencedSuccess, sourceFolder, outputFolder, dataFolder);
 	}
 	
-	@Override
-	protected boolean isFileValid(Path fileName)
-	{
-		return true;
+	private PrimitiveCollectionsBuilder setFlags(int flags) {
+		this.flags = flags;
+		if((flags & ANTI_SAVE) != 0) {
+			this.flags &= ~SAVE;
+		}
+		return this;
+	}
+	
+	private static PrimitiveCollectionsBuilder createTests(boolean silent, int flags) {
+		return new PrimitiveCollectionsBuilder(silent, 
+				Paths.get("src/builder/resources/speiger/assets/tests/templates/"), 
+				Paths.get("src/test/java/speiger/src/tests/"), 
+				Paths.get("src/builder/resources/speiger/assets/tests/")).setFlags(flags | SPECIAL);
+	}
+	
+	private static PrimitiveCollectionsBuilder createTesters(boolean silent, int flags) {
+		return new PrimitiveCollectionsBuilder(silent, 
+				Paths.get("src/builder/resources/speiger/assets/testers/templates/"), 
+				Paths.get("src/test/java/speiger/src/testers/"), 
+				Paths.get("src/builder/resources/speiger/assets/testers/")).setFlags(flags | SPECIAL);
 	}
 	
 	@Override
-	protected boolean relativePackages()
-	{
-		return true;
-	}
+	protected boolean isFileValid(Path fileName) { return true; }
+	@Override
+	protected boolean relativePackages() { return true; }
+	@Override
+	protected boolean debugUnusedMappers() { return false; }
 	
 	@Override
-	protected boolean debugUnusedMappers()
-	{
-		return false;
-	}
-	
-	@Override
-	protected void afterFinish()
-	{
-		if(getVersion() > 8) 
-		{
+	protected void afterFinish() {
+		if((flags & SPECIAL) == 0 && getVersion() > 8)  {
 			Path basePath = Paths.get("src/main/java");
-			try(BufferedWriter writer = Files.newBufferedWriter(basePath.resolve("module-info.java")))
-			{
+			try(BufferedWriter writer = Files.newBufferedWriter(basePath.resolve("module-info.java"))) {
 				writer.write(getModuleInfo(basePath));
 			}
-			catch(Exception e)
-			{
-				e.printStackTrace();
-			}
+			catch(Exception e) { e.printStackTrace(); }
+		}
+	}
+	
+	public List<BaseModule> createModules() {
+		List<BaseModule> modules = new ArrayList<>();
+		modules.add(JavaModule.INSTANCE);
+		modules.add(FunctionModule.INSTANCE);
+		modules.add(CollectionModule.INSTANCE);
+		modules.add(PrioQueueModule.INSTANCE);
+		modules.add(ListModule.INSTANCE);
+		modules.add(SetModule.INSTANCE);
+		modules.add(MapModule.INSTANCE);
+		modules.add(PairModule.INSTANCE);
+		modules.add(AsyncModule.INSTANCE);
+		return modules;
+	}
+
+	
+	@Override
+	protected void init()  {
+		prepPackages();
+		//Init Modules here
+		addModules(createModules());
+		finishPackages();
+	}
+	
+	public void addModules(List<BaseModule> modules) {
+		for(int i = 0,m=modules.size();i<m;i++) {
+			modules.get(i).setManager(manager);
+		}
+		manager.resolve();
+		for(int i = 0,m=modules.size();i<m;i++) {
+			biPackages.forEach(modules.get(i)::init);
+		}
+		modules.forEach(BaseModule::cleanup);
+	}
+	
+	private void finishPackages()  {
+		biPackages.forEach(ModulePackage::finish);
+		if((flags & SAVE) != 0) manager.save();
+	}
+	
+	private void prepPackages() {
+		if((flags & LOAD) != 0) manager.load();
+		for(ModulePackage entry : ModulePackage.createPackages(globalFlags)) {
+			entry.setRequirements(requirements::put);
+			biPackages.add(entry);
+			if(entry.isSame()) simplePackages.add(entry);
+			if(entry.isEnumValid()) enumPackages.add(entry);
 		}		
 	}
 	
 	@Override
-	protected void init()
-	{
-		variables.clear();
-		for(ClassType clzType : TYPE)
-		{
-			for(ClassType subType : TYPE)
-			{
-				create(clzType, subType);
-			}
-		}
-		enumRequired.add("EnumMap");
-		enumRequired.add("LinkedEnumMap");
-		biRequired.put("BiConsumer", "");
-		biRequired.put("UnaryOperator", "");
-		biRequired.put("Pair", "");
-		biRequired.put("MutablePair", "");
-		biRequired.put("ImmutablePair", "");
-		addBiClass("Function", "Maps", "Map", "SortedMap", "OrderedMap", "NavigableMap", "ConcurrentMap", "AbstractMap", "ConcurrentOpenHashMap", "ImmutableOpenHashMap", "OpenHashMap", "LinkedOpenHashMap", "OpenCustomHashMap", "LinkedOpenCustomHashMap", "ArrayMap", "RBTreeMap", "AVLTreeMap");
-		nameRemapper.put("BiConsumer", "%sConsumer");
-		nameRemapper.put("IArray", "I%sArray");
-		nameRemapper.put("AbstractMap", "Abstract%sMap");
-		nameRemapper.put("AbstractCollection", "Abstract%sCollection");
-		nameRemapper.put("AbstractPriorityQueue", "Abstract%sPriorityQueue");
-		nameRemapper.put("AbstractSet", "Abstract%sSet");
-		nameRemapper.put("AbstractList", "Abstract%sList");
-		nameRemapper.put("EnumMap", "Enum2%sMap");
-		nameRemapper.put("LinkedEnumMap", "LinkedEnum2%sMap");
-		nameRemapper.put("ImmutableList", "Immutable%sList");
-		nameRemapper.put("CopyOnWriteList", "CopyOnWrite%sArrayList");
-		nameRemapper.put("ImmutableOpenHashSet", "Immutable%sOpenHashSet");
-		nameRemapper.put("ImmutableOpenHashMap", "Immutable%sOpenHashMap");
-		
-		addBlockage(ClassType.OBJECT, "Consumer", "Comparator", "Stack");
-		addBlockage(ClassType.BOOLEAN, "ArraySet", "AVLTreeSet", "RBTreeSet", "SortedSet", "OrderedSet", "NavigableSet", "OpenHashSet", "OpenCustomHashSet", "LinkedOpenHashSet", "LinkedOpenCustomHashSet");
-		addBlockage(ClassType.BOOLEAN, "ConcurrentOpenHashMap", "ImmutableOpenHashMap", "ImmutableOpenHashSet", "SortedMap", "OrderedMap", "NavigableMap", "ConcurrentMap", "OpenHashMap", "LinkedOpenHashMap", "OpenCustomHashMap", "LinkedOpenCustomHashMap", "ArrayMap", "RBTreeMap", "AVLTreeMap");
-	}
-	
-	protected void create(ClassType mainType, ClassType subType) 
-	{
-		GlobalVariables type = new GlobalVariables(mainType, subType);
-		type.createFlags();
-		type.createHelperVariables();
-		type.createVariables();
-		type.createPreFunctions();
-		type.createClassTypes();
-		type.createFunctions();
-		if(mainType == subType) variables.add(type);
-		biVariables.add(type);
-		if(mainType.isObject()) enumVariables.add(type);
-	}
-	
-	protected void addBiClass(String...classNames) 
-	{
-		for(String s : classNames)
-		{
-			biRequired.put(s, "2");
+	public void createProcesses(String fileName, Consumer<TemplateProcess> process) {
+		List<ModulePackage> packages = getPackagesByRequirement(requirements.get(fileName));
+		for(int i = 0,m=packages.size();i<m;i++) {
+			packages.get(i).process(fileName, process);
 		}
 	}
 	
-	protected void addBlockage(ClassType type, String...args) 
-	{
-		for(String s : args) 
-		{
-			EnumSet<ClassType> set = blocked.get(s);
-			if(set == null) 
-			{
-				set = EnumSet.noneOf(ClassType.class);
-				blocked.put(s, set);
-			}
-			set.add(type);
-		}
-	}
-	
-	@Override
-	public void createProcesses(String name, Consumer<TemplateProcess> acceptor)
-	{
-		String splitter = biRequired.get(name);
-		boolean valueRequired = enumRequired.contains(name);
-		List<GlobalVariables> vars = getVariablesByClass(name, splitter != null);
-		EnumSet<ClassType> types = blocked.get(name);
-		for(int i = 0,m=vars.size();i<m;i++)
-		{
-			GlobalVariables type = vars.get(i);
-			if(types == null || !types.contains(type.getType()))
-			{
-				acceptor.accept(type.create(nameRemapper.getOrDefault(name, "%s"+name), splitter, valueRequired));
-			}
-		}
-	}
-	
-	protected List<GlobalVariables> getVariablesByClass(String name, boolean bi) {
-		if(enumRequired.contains(name)) return enumVariables;
-		if(bi) return biVariables;
-		return variables;
+	protected List<ModulePackage> getPackagesByRequirement(RequiredType type) {
+		if(type == null) return simplePackages;
+		if(type == RequiredType.BI_CLASS) return biPackages;
+		if(type == RequiredType.ENUM) return enumPackages;
+		return Collections.emptyList();
 	}
 	
 	private String getModuleInfo(Path basePath) {
 		StringJoiner joiner = new StringJoiner("\n", "", "\n");
-		try(Stream<Path> stream = Files.walk(getOutputFolder()))
-		{
+		try(Stream<Path> stream = Files.walk(getOutputFolder())) {
 			stream.filter(Files::isDirectory)
 					.filter(this::containsFiles)
 					.map(basePath::relativize)
@@ -194,8 +175,7 @@ public class PrimitiveCollectionsBuilder extends TemplateProcessor
 					.map(this::sanitize)
 					.forEach(T -> joiner.add("\texports "+T+";"));
 		}
-		catch(Exception e)
-		{
+		catch(Exception e) {
 			e.printStackTrace();
 			throw new RuntimeException(e);
 		}
@@ -206,58 +186,43 @@ public class PrimitiveCollectionsBuilder extends TemplateProcessor
 		return builder.toString();
 	}
 	
-	private String sanitize(String input)
-	{
+	private String sanitize(String input) {
 		return input.replace("\\", ".").replace("/", ".");
 	}
 	
-	private boolean containsFiles(Path path) 
-	{
-		try(Stream<Path> stream = Files.walk(path, 1))
-		{
+	private boolean containsFiles(Path path)  {
+		try(Stream<Path> stream = Files.walk(path, 1)) {
 			return stream.filter(Files::isRegularFile).findFirst().isPresent();
 		}
-		catch(Exception e)
-		{
-			e.printStackTrace();
-		}
+		catch(Exception e) { e.printStackTrace(); }
 		return false;
 	}
 	
-	private int getVersion() 
-	{
+	private int getVersion() {
 		String version = System.getProperty("java.version");
 		if(version.startsWith("1.")) return Integer.parseInt(version.substring(2, 3));
 		int dot = version.indexOf(".");
 		return Integer.parseInt(dot != -1 ? version.substring(0, dot) : version);
 	}
 	
-	public static void main(String...args)
-	{
+	public static void main(String...args) {
 		try
 		{
-	        if(args.length == 0) {
-	            new PrimitiveCollectionsBuilder().process(false);
-	        } else if(args.length == 1) {
-	            new PrimitiveCollectionsBuilder().process(Boolean.parseBoolean(args[0]));
-	        } else if(args.length == 2) {
-	            new PrimitiveCollectionsBuilder(Boolean.parseBoolean(args[1])).process(Boolean.parseBoolean(args[0]));
-	        } else if(args.length == 3) {
-	            new PrimitiveCollectionsBuilder(Paths.get(args[0]), Paths.get(args[1]), Paths.get(args[2])).process(false);
-	        } else if(args.length == 4) {
-	            new PrimitiveCollectionsBuilder(false, Paths.get(args[0]), Paths.get(args[1]), Paths.get(args[2])).process(Boolean.parseBoolean(args[3]));
-	        } else if(args.length == 4) {
-	            new PrimitiveCollectionsBuilder(Boolean.parseBoolean(args[4]), Paths.get(args[0]), Paths.get(args[1]), Paths.get(args[2])).process(Boolean.parseBoolean(args[3]));
-	        } else {
-	            System.out.println("Invalid argument count passed in");
-	            System.exit(1);
-	    	}
-		}
-		catch(InterruptedException e)
-		{
-			e.printStackTrace();
-		}
-		catch(IOException e)
+			Set<String> flags = new HashSet<>(Arrays.asList(args));
+			boolean silent = flags.contains("silent");
+			boolean force = flags.contains("force");
+			boolean tests = flags.contains("tests");
+			boolean forceTests =  flags.contains("force-tests");
+			boolean load = flags.contains("load");
+			boolean save = flags.contains("save");
+			int flag = (load ? LOAD : 0) | (save ? SAVE : 0);
+            new PrimitiveCollectionsBuilder(silent).setFlags(flag).process(force);
+            if(tests) {
+    			createTests(silent, flag).process(force || forceTests);
+    			createTesters(silent, flag).process(force || forceTests);
+            }
+        }
+		catch(InterruptedException | IOException e)
 		{
 			e.printStackTrace();
 		}

src/builder/java/speiger/src/builder/RequiredType.java

@@ -0,0 +1,8 @@
+package speiger.src.builder;
+
+@SuppressWarnings("javadoc")
+public enum RequiredType
+{
+	BI_CLASS,
+	ENUM
+}

src/builder/java/speiger/src/builder/SettingsManager.java

@@ -0,0 +1,217 @@
+package speiger.src.builder;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.TreeSet;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.google.gson.internal.Streams;
+import com.google.gson.stream.JsonWriter;
+
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.dependencies.IDependency.LoadingState;
+import speiger.src.builder.modules.BaseModule;
+
+@SuppressWarnings("javadoc")
+public class SettingsManager
+{
+	boolean loaded;
+	Map<String, LoadingState> parsedData = new TreeMap<>();
+	JsonObject data = new JsonObject();
+	Set<String> moduleNames = new TreeSet<>(String.CASE_INSENSITIVE_ORDER);
+	Set<IDependency> allDependencies = new LinkedHashSet<>();
+	
+	public void resolve() {
+		if(!loaded) return;
+		Set<IDependency> roots = new LinkedHashSet<>();
+		Set<IDependency> leafs = new LinkedHashSet<>();
+		for(IDependency entry : allDependencies) {
+			if(entry.isRoot()) {
+				roots.add(entry);
+			}
+			if(entry.isLeaf()) {
+				leafs.add(entry);
+			}
+		}
+		/**
+		 * This has to be 2 iteration passes.
+		 * Due to Key Value Pairs, first pass does all initials keys, and the second pass processes the values.
+		 * May require more passes but extremely unlikely
+		 */
+		for(int i = 0;i<2;i++) {
+			for(ClassType keyType : ModulePackage.TYPE) {
+				for(ClassType valueType : ModulePackage.TYPE) {
+					for(IDependency entry : roots) {
+						entry.resolveRequirements(keyType, valueType);
+					}
+				}
+			}
+		}
+		
+		List<String> errors = new ArrayList<>();
+		for(ClassType keyType : ModulePackage.TYPE) {
+			for(ClassType valueType : ModulePackage.TYPE) {
+				for(IDependency entry : leafs) {
+					entry.validateDependency(errors::add, keyType, valueType);
+				}
+			}
+		}
+		if(errors.size() > 0) {
+			throw new IllegalStateException("Issues with dependencies found: "+String.join("\n", errors));
+		}
+	}
+	
+	public void addModule(BaseModule module) {
+		if(loaded) {
+			if(module.isBiModule()) {
+				for(ClassType keyType : ModulePackage.TYPE) {
+					for(ClassType valueType : ModulePackage.TYPE) {
+						if(!module.isModuleValid(keyType, valueType)) continue;
+						for(IDependency dependency : module.getDependencies(keyType, valueType)) {
+							dependency.set(parsedData);
+							allDependencies.add(dependency);
+						}
+					}
+				}
+				return;
+			}
+			for(ClassType keyType : ModulePackage.TYPE) {
+				if(!module.isModuleValid(keyType, keyType)) continue;
+				for(IDependency dependency : module.getDependencies(keyType, keyType)) {
+					dependency.set(parsedData);
+					allDependencies.add(dependency);
+				}
+			}
+			return;
+		}
+		String moduleName = module.getModuleName();
+		moduleNames.add(moduleName);
+		data.addProperty(moduleName, true);
+		if(module.isBiModule()) {
+			for(ClassType keyType : ModulePackage.TYPE) {
+				for(ClassType valueType : ModulePackage.TYPE) {
+					if(!module.isModuleValid(keyType, valueType)) continue;
+					JsonObject obj = new JsonObject();
+					for(IDependency dependency : module.getDependencies(keyType, valueType)) {
+						String key = dependency.getName();
+						if(key != null) obj.addProperty(key, true);
+					}
+					addModule(keyType, valueType, true, moduleName, obj);
+				}
+			}
+			return;
+		}
+		for(ClassType keyType : ModulePackage.TYPE) {
+			if(!module.isModuleValid(keyType, keyType)) continue;
+			JsonObject obj = new JsonObject();
+			for(IDependency dependency : module.getDependencies(keyType, keyType)) {
+				String key = dependency.getName();
+				if(key != null) obj.addProperty(key, true);
+			}
+			addModule(keyType, keyType, false, moduleName, obj);			
+		}
+	}
+	
+	public void printModuleSettings(List<BaseModule> modules) {
+		JsonObject data = new JsonObject();
+		for(BaseModule module : modules) {
+			String moduleName = module.getModuleName();
+			if(module.isBiModule()) {
+				for(ClassType keyType : ModulePackage.TYPE) {
+					for(ClassType valueType : ModulePackage.TYPE) {
+						if(!module.isModuleValid(keyType, valueType)) continue;
+						JsonObject obj = new JsonObject();
+						for(IDependency dependency : module.getDependencies(keyType, valueType)) {
+							String key = dependency.getName();
+							if(key != null) obj.addProperty(key, dependency.isLoaded(keyType, valueType).getJsonResult());
+						}
+						addModule(data, keyType, valueType, true, moduleName, obj);
+					}
+				}
+				continue;
+			}
+			for(ClassType keyType : ModulePackage.TYPE) {
+				if(!module.isModuleValid(keyType, keyType)) continue;
+				JsonObject obj = new JsonObject();
+				for(IDependency dependency : module.getDependencies(keyType, keyType)) {
+					String key = dependency.getName();
+					if(key != null) obj.addProperty(key, dependency.isLoaded(keyType, keyType).getJsonResult());
+				}
+				addModule(data, keyType, keyType, false, moduleName, obj);			
+			}
+		}
+		try {
+			System.out.println();
+			JsonWriter writer = new JsonWriter(new OutputStreamWriter(System.out));
+			writer.setIndent("\t");
+			Streams.write(data, writer);
+			writer.flush();
+			System.out.println();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+	
+	public void load() {
+		try(BufferedReader reader = Files.newBufferedReader(Paths.get("ModulSettings.json"))) {
+			data = JsonParser.parseReader(reader).getAsJsonObject();
+			loaded = true;
+			IDependency.flatten("", false, data, parsedData);
+			JsonElement element = data.get("Default");
+			LoadingState.setOptionalResolver(LoadingState.of(element == null ? true : element.getAsBoolean()));
+		}
+		catch(Exception e) { e.printStackTrace(); }
+	}
+	
+	public void save() {
+		data.asMap().keySet().removeAll(moduleNames);
+		JsonObject result = new JsonObject();
+		for(String s : moduleNames) {
+			result.addProperty(s, true);
+		}
+		result.asMap().putAll(data.asMap());
+		
+		try(JsonWriter writer = new JsonWriter(Files.newBufferedWriter(Paths.get("ModulSettings.json")))) {
+			writer.setIndent("\t");
+			Streams.write(result, writer);
+		}
+		catch(Exception e) { e.printStackTrace(); }
+	}
+	
+	private void addModule(JsonObject data, ClassType keyType, ClassType valueType, boolean bi, String moduleName, JsonObject obj) {
+		JsonObject result = getObject(data, keyType.getClassPath(), true);
+		if(bi) {
+			result = getObject(result, valueType.getClassPath(), true);
+		}
+		result.add(moduleName, obj);
+	}
+	
+	private void addModule(ClassType keyType, ClassType valueType, boolean bi, String moduleName, JsonObject obj) {
+		JsonObject result = getObject(data, keyType.getClassPath(), true);
+		if(bi) {
+			result = getObject(result, valueType.getClassPath(), true);
+		}
+		result.add(moduleName, obj);
+	}
+	
+	private JsonObject getObject(JsonObject data, String name, boolean create) {
+		JsonObject obj = data.getAsJsonObject(name);
+		if(obj == null) {
+			obj = new JsonObject();
+			data.add(name, obj);
+			if(create) obj.addProperty("Enabled", true);
+		}
+		return obj;
+	}
+}

src/builder/java/speiger/src/builder/dependencies/BaseDependency.java

@@ -0,0 +1,137 @@
+package speiger.src.builder.dependencies;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.StringJoiner;
+import java.util.TreeSet;
+import java.util.function.Consumer;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.Requirements.Requirement;
+
+@SuppressWarnings("javadoc")
+public abstract class BaseDependency implements IDependency {
+	protected static boolean FETCH_FAILURES = false;
+	protected static Set<String> FAILURE_KEYS = new TreeSet<>();
+	
+	protected final String name;
+	protected final boolean biType;
+	protected Map<String, LoadingState> dependencies;
+	protected List<IDependency> children = new ArrayList<>();
+	protected List<Requirement> requirements = new ArrayList<>();
+	protected ClassType keyType;
+	protected ClassType valueType;
+	
+	public BaseDependency(String name, boolean biType) {
+		this.name = name;
+		this.biType = biType;
+	}
+	
+	@Override
+	public String toString() {
+		return name;
+	}
+	
+	@Override
+	public void set(Map<String, LoadingState> dependency) {
+		dependencies = dependency;
+	}
+	
+	@Override
+	public IDependency addDependency(Requirement require) {
+		requirements.add(require);
+		require.dependency.addChild(this);
+		return this;
+	}
+	
+	@Override
+	public void addChild(IDependency child) {
+		children.add(child);
+	}
+	
+	@Override
+	public boolean isLeaf() {
+		return children.isEmpty();
+	}
+	
+	@Override
+	public boolean isRoot() {
+		return requirements.isEmpty();
+	}
+	
+	protected LoadingState getGlobalState() {
+		return dependencies.getOrDefault(name, LoadingState.OPTIONAL);
+	}
+	
+	@Override
+	public String getLocalStateKey(ClassType keyType, ClassType valueType) {
+		return (biType ? keyType.getClassPath()+"-"+valueType.getClassPath() : keyType.getClassPath())+"-"+name;
+	}
+	
+	protected LoadingState getLocalState(ClassType keyType, ClassType valueType) {
+		return dependencies.getOrDefault(getLocalStateKey(keyType, valueType), LoadingState.OPTIONAL);
+	}
+		
+	protected LoadingState getReqirementState(ClassType keyType, ClassType valueType) {
+		LoadingState state = requirements.isEmpty() ? LoadingState.REQUIRED : LoadingState.OPTIONAL;
+		for(int i = 0,m=requirements.size();i<m;i++) {
+			state = state.merge(requirements.get(i).test(keyType, valueType));
+		}
+		return state.resolveIfUndefined();
+	}
+	
+	@Override
+	public void resolveRequirements(ClassType keyType, ClassType valueType) {
+		if(!children.isEmpty()) {
+			for(IDependency child : children) {
+				if(child == this) continue;
+				child.resolveRequirements(keyType, valueType);
+			}
+		}
+		if(getLocalState(keyType, valueType) == LoadingState.REQUIRED) {
+			for(Requirement req : requirements) {
+				dependencies.putIfAbsent(req.key(keyType, valueType), LoadingState.REQUIRED);
+			}
+		}
+	}
+	
+	@Override
+	public void validateDependency(Consumer<String> result, ClassType keyType, ClassType valueType) {
+		if(getLocalState(keyType, valueType) == LoadingState.REQUIRED) {
+			FETCH_FAILURES = true;
+			for(Requirement req : requirements) {
+				req.test(keyType, valueType);
+			}
+			FETCH_FAILURES = false;
+			if(FAILURE_KEYS.size() > 0) {
+				int size = FAILURE_KEYS.size();
+				StringJoiner joiner = new StringJoiner("], [", "[", "]");
+				FAILURE_KEYS.forEach(joiner::add);
+				FAILURE_KEYS.clear();
+				String joins = size > 1 ? "["+joiner.toString()+"]" : joiner.toString();
+				
+				result.accept("["+getLocalStateKey(keyType, valueType)+"] Requires "+joins+" but it specifically has been disabled!");
+			}
+			
+		}
+	}
+	
+	@Override
+	public void set(ClassType key, ClassType value) {
+		this.keyType = key;
+		this.valueType = value;
+	}
+	
+	@Override
+	public boolean isEnabled() {
+		if(keyType == null || keyType == null) return false;
+		return isLoaded(keyType, valueType).getJsonResult();
+	}
+	
+	@Override
+	public String getName() {
+		return name;
+	}
+}

src/builder/java/speiger/src/builder/dependencies/FunctionDependency.java

@@ -0,0 +1,29 @@
+package speiger.src.builder.dependencies;
+
+import speiger.src.builder.ClassType;
+
+@SuppressWarnings("javadoc")
+public class FunctionDependency extends BaseDependency {
+	ModuleDependency owner;
+	
+	public FunctionDependency(ModuleDependency owner, String name) {
+		super(name, owner.biType);
+		this.owner = owner;
+	}
+	
+	@Override
+	public LoadingState isLoaded(ClassType key, ClassType value) {
+		if(dependencies == null) return LoadingState.REQUIRED;
+		LoadingState result = getLocalState(key, value);
+		if(FETCH_FAILURES && result == LoadingState.REJECTED) {
+			FAILURE_KEYS.add(getLocalStateKey(key, value));
+		}
+		return result.resolveIfUndefined().merge(getReqirementState(key, value));
+	}
+	
+	@Override
+	public String getLocalStateKey(ClassType keyType, ClassType valueType) {
+		return (biType ? keyType.getClassPath()+"-"+valueType.getClassPath() : keyType.getClassPath())+"-"+owner.getName()+"-"+name;
+	}
+
+}

src/builder/java/speiger/src/builder/dependencies/IDependency.java

@@ -0,0 +1,104 @@
+package speiger.src.builder.dependencies;
+
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.function.Consumer;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonPrimitive;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.Requirements.Requirement;
+
+@SuppressWarnings("javadoc")
+public interface IDependency {
+	
+	
+	public void set(Map<String, LoadingState> dependency);
+	public void set(ClassType key, ClassType value);
+	public LoadingState isLoaded(ClassType key, ClassType value);
+	public String getLocalStateKey(ClassType keyType, ClassType valueType);
+	public boolean isEnabled();
+	public boolean isLeaf();
+	public boolean isRoot();
+	
+	public String getName();
+	public void validateDependency(Consumer<String> result, ClassType keyType, ClassType valueType);
+	public void resolveRequirements(ClassType keyType, ClassType valueType);
+	
+	public void addChild(IDependency child);
+	public <T extends IDependency> T addDependency(Requirement require);
+	public default <T extends IDependency> T addKeyDependency(IDependency dependency) { return addDependency(new Requirement(dependency, Requirements.KEY_TEST, Requirements.KEY_GETTER)); }
+	public default <T extends IDependency> T addValueDependency(IDependency dependency) { return addDependency(new Requirement(dependency, Requirements.VALUE_TEST, Requirements.VALUE_GETTER)); }
+	public default <T extends IDependency> T addEntryDependency(IDependency dependency) { return addDependency(new Requirement(dependency, Requirements.ENTRY_TEST, Requirements.ENTRY_GETTER)); }
+	public default <T extends IDependency> T addTypeDependency(IDependency dependency, ClassType type) { return addDependency(new Requirement(dependency, Requirements.typedTest(type), Requirements.typedKey(type))); }
+	public default <T extends IDependency> T addOptionalTypeDependency(IDependency dependency, ClassType type, boolean key) { return addDependency(new Requirement(dependency, Requirements.optionalTest(type, key), Requirements.optionalKey(type, key))); }
+	public default <T extends IDependency> T addOptionalTypeDependency(ClassType type, boolean key) { return addDependency(new Requirement(this, Requirements.optionalTest(type, key), Requirements.optionalKey(type, key))); }
+
+	
+	public static void flatten(String prefix, boolean applyMiddle, JsonObject object, Map<String, LoadingState> result) {
+		if(applyMiddle) prefix+="-";
+		for(Entry<String, JsonElement> entry : object.entrySet()) {
+			String key = entry.getKey();
+			JsonElement value = entry.getValue();
+			if(value instanceof JsonPrimitive) {
+				String entryKey = prefix+key;
+				if("Enabled".equalsIgnoreCase(key)) {
+					entryKey = prefix.substring(0, prefix.length()-1);
+				}
+				result.put(entryKey, LoadingState.of(((JsonPrimitive)value).getAsBoolean()));
+			}
+			if(value instanceof JsonObject) {
+				flatten(prefix+key, true, (JsonObject)value, result);
+			}
+		}
+	}
+	
+	public static enum LoadingState {
+		OPTIONAL,
+		REQUIRED,
+		REJECTED;
+		
+		private static LoadingState RESOLVED = LoadingState.REQUIRED;
+		
+		public static LoadingState of(boolean value) {
+			return value ? REQUIRED : REJECTED;
+		}
+		
+		public LoadingState merge(LoadingState merge) {
+			return ordinal() > merge.ordinal() ? this : merge;
+		}
+		
+		public LoadingState replaceIfUndefined(LoadingState state) {
+			return this == OPTIONAL ? state : this;
+		}
+		
+		public LoadingState resolveIfUndefined() {
+			return this == OPTIONAL ? RESOLVED : this;
+		}
+		
+		public LoadingState mergeDown(LoadingState merge) {
+			if(merge == REJECTED || ordinal() > merge.ordinal()) {
+				return this;
+			}
+			return merge;
+		}
+		
+		public LoadingState mergeUp(LoadingState merge) {
+			if(merge == REQUIRED || ordinal() > merge.ordinal()) {
+				return this;
+			}
+			return merge;
+		}
+		
+		public static void setOptionalResolver(LoadingState state) {
+			RESOLVED = state;
+		}
+		
+		public boolean getJsonResult() {
+			LoadingState state = this == OPTIONAL ? RESOLVED : this;
+			return state == REQUIRED;
+		}
+	}
+}

src/builder/java/speiger/src/builder/dependencies/ModuleDependency.java

@@ -0,0 +1,31 @@
+package speiger.src.builder.dependencies;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.modules.BaseModule;
+
+@SuppressWarnings("javadoc")
+public class ModuleDependency extends BaseDependency {
+	BaseModule owner;
+	
+	public ModuleDependency(BaseModule owner, boolean biType) {
+		super(owner.getModuleName(), biType);
+		this.owner = owner;
+	}
+	
+	public FunctionDependency createDependency(String name) {
+		FunctionDependency result = new FunctionDependency(this, name);
+		if(biType) result.addEntryDependency(this);
+		else result.addKeyDependency(this);
+		return result;
+	}
+	
+	@Override
+	public LoadingState isLoaded(ClassType key, ClassType value) {
+		if(dependencies == null) return LoadingState.REQUIRED;
+		LoadingState result = getLocalState(key, value);
+		if(FETCH_FAILURES && result == LoadingState.REJECTED) {
+			FAILURE_KEYS.add(getLocalStateKey(key, value));
+		}
+		return result.replaceIfUndefined(getGlobalState()).resolveIfUndefined().merge(getReqirementState(key, value));
+	}
+}

src/builder/java/speiger/src/builder/dependencies/Requirements.java

@@ -0,0 +1,68 @@
+package speiger.src.builder.dependencies;
+
+import java.util.function.Consumer;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.IDependency.LoadingState;
+
+@SuppressWarnings("javadoc")
+public class Requirements {
+	public static final RequirementTest KEY_TEST = (T, K, V) -> T.isLoaded(K, K);
+	public static final RequirementTest VALUE_TEST = (T, K, V) -> T.isLoaded(V, V);
+	public static final RequirementTest ENTRY_TEST = (T, K, V) -> T.isLoaded(K, V);
+	
+	public static RequirementTest typedTest(ClassType type) {
+		return (T, K, V) -> T.isLoaded(type, type);
+	}
+	
+	public static RequirementTest optionalTest(ClassType type, boolean key) {
+		return (T, K, V) -> (key ? K : V) != type ? T.isLoaded(type, type) : LoadingState.REQUIRED;
+	}
+	
+	public static final RequirementKey KEY_GETTER = (T, K, V) -> T.getLocalStateKey(K, K);
+	public static final RequirementKey VALUE_GETTER = (T, K, V) -> T.getLocalStateKey(V, V);
+	public static final RequirementKey ENTRY_GETTER = (T, K, V) -> T.getLocalStateKey(K, V);
+	
+	public static RequirementKey typedKey(ClassType type) {
+		return (T, K, V) -> T.getLocalStateKey(type, type);
+	}
+	
+	public static RequirementKey optionalKey(ClassType type, boolean key) {
+		return (T, K, V) -> (key ? K : V) != type ? T.getLocalStateKey(type, type) : "";
+	}
+
+	
+	
+	public interface RequirementTest {
+		public LoadingState test(IDependency test, ClassType keyType, ClassType valueType);
+	}
+	
+	public static interface RequirementKey {
+		public String key(IDependency test, ClassType keyType, ClassType valueType);
+	}
+	
+	public static interface RequirementResolver {
+		public void resolve(IDependency test, Consumer<String> result, ClassType keyType, ClassType valueType);
+	}
+	
+	public static class Requirement {
+		IDependency dependency;
+		RequirementTest test;
+		RequirementKey key;
+		
+		public Requirement(IDependency dependency, RequirementTest test, RequirementKey key) {
+			this.dependency = dependency;
+			this.test = test;
+			this.key = key;
+		}
+		
+		public LoadingState test(ClassType keyType, ClassType valueType) {
+			return test.test(dependency, keyType, valueType);
+		}
+		
+		public String key(ClassType keyType, ClassType valueType) {
+			return key.key(dependency, keyType, valueType);
+		}
+		
+	}
+}

src/builder/java/speiger/src/builder/modules/AsyncModule.java

@@ -0,0 +1,53 @@
+package speiger.src.builder.modules;
+
+import java.util.Arrays;
+import java.util.List;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.dependencies.ModuleDependency;
+
+@SuppressWarnings("javadoc")
+public class AsyncModule extends BaseModule
+{
+	public static final BaseModule INSTANCE = new AsyncModule();
+	public static final ModuleDependency MODULE = new ModuleDependency(INSTANCE, false).addKeyDependency(JavaModule.MODULE);
+	
+	@Override
+	public String getModuleName() { return "Async"; }
+	@Override
+	protected void loadVariables() {}
+	@Override
+	protected void loadRemappers() {}
+	@Override
+	protected void loadTestClasses() {}
+	@Override
+	protected void loadFunctions() {}
+	@Override
+	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) { return Arrays.asList(MODULE); }
+	@Override
+	protected void loadBlockades() {
+		if(!MODULE.isEnabled()) {
+			addBlockedFiles("AsyncBuilder", "Task");
+		}
+	}
+	@Override
+	protected void loadFlags() {
+		if(MODULE.isEnabled()) {
+			addKeyFlag("ASYNC_MODULE");
+		}
+	}
+	
+	@Override
+	protected void loadClasses()
+	{
+		//Implementation Classes
+		addClassMapper("ASYNC_BUILDER", "AsyncBuilder");
+		
+		//Abstract Classes
+		addAbstractMapper("BASE_TASK", "Base%sTask");
+		
+		//Interfaces
+		addClassMapper("TASK", "Task");
+	}
+}

src/builder/java/speiger/src/builder/modules/BaseModule.java

@@ -0,0 +1,198 @@
+package speiger.src.builder.modules;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.function.Consumer;
+import java.util.function.Predicate;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.ModulePackage;
+import speiger.src.builder.RequiredType;
+import speiger.src.builder.SettingsManager;
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.mappers.ArgumentMapper;
+import speiger.src.builder.mappers.InjectMapper;
+import speiger.src.builder.mappers.LineMapper;
+import speiger.src.builder.mappers.SimpleMapper;
+
+@SuppressWarnings("javadoc")
+public abstract class BaseModule
+{
+	SettingsManager manager;
+	ModulePackage entry;
+	protected ClassType keyType;
+	protected ClassType valueType;
+	
+	public final void setManager(SettingsManager manager) {
+		this.manager = manager;
+		manager.addModule(this);
+	}
+	
+	public final void init(ModulePackage entry) {
+		this.entry = entry;
+		keyType = entry.getKeyType();
+		valueType = entry.getValueType();
+		for(IDependency dependency : getDependencies(keyType, valueType)) {
+			dependency.set(keyType, valueType);
+		}
+		loadVariables();
+		loadClasses();
+		loadTestClasses();
+		loadFunctions();
+		loadRemappers();
+		loadBlockades();
+		loadFlags();
+	}
+	
+	public final void cleanup() {
+		entry = null;
+		keyType = null;
+		valueType = null;
+		manager = null;
+	}
+	
+	protected abstract void loadVariables();
+	protected abstract void loadClasses();
+	protected abstract void loadTestClasses();
+	protected abstract void loadFunctions();
+	protected abstract void loadRemappers();
+	protected abstract void loadBlockades();
+	protected abstract void loadFlags();
+	
+	public abstract String getModuleName();
+	public boolean isBiModule() { return false; }
+	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) { return Collections.emptyList(); }
+	public boolean isModuleValid(ClassType keyType, ClassType valueType) { return true; }
+	
+	public ClassType keyType() { return keyType; }
+	public ClassType valueType() { return valueType; }
+	
+	protected void addFlag(String name) {
+		entry.addFlag(name);
+	}
+	
+	protected void addValue(String name, int value) {
+		entry.addValue(name, value);
+	}
+	
+	protected void addKeyFlag(String name) {
+		entry.addFlag(name);
+		entry.addGlobalFlag(keyType.getCapType()+"_"+name);
+	}
+	
+	protected void addBiRequirement(String fileName) {
+		entry.addRequirement(fileName, RequiredType.BI_CLASS);
+		entry.addSplitter(fileName, "%1$s2%2$s");
+	}
+	
+	protected void addEnumRequirement(String fileName) {
+		entry.addRequirement(fileName, RequiredType.ENUM);
+		entry.addSplitter(fileName, "%2$s");
+
+	}
+	
+	protected void addBiRequirement(String fileName, String splitter) {
+		entry.addRequirement(fileName, RequiredType.BI_CLASS);
+		entry.addSplitter(fileName, "%1$s"+splitter+"%2$s");
+	}
+	
+	protected void addRequirement(String fileName, String splitter, RequiredType type) {
+		entry.addRequirement(fileName, type);
+		entry.addSplitter(fileName, splitter);
+	}
+	
+	protected void addRemapper(String fileName, String actualName) {
+		entry.addRemapper(fileName, actualName);
+	}
+	
+	protected void addBlockedFiles(String... name) {
+		entry.addBlockedFiles(name);
+	}
+	
+	protected void addBlockedFilter(Predicate<String> filter) {
+		entry.addBlockedFilter(filter);
+	}
+	
+	protected void addClassMapper(String pattern, String replacement) {
+		entry.addMapper(new SimpleMapper("VALUE_"+pattern, "VALUE_"+pattern, valueType.getFileType()+replacement));
+		entry.addMapper(new SimpleMapper(pattern, pattern, keyType.getFileType()+replacement));
+	}
+	
+	protected void addBiClassMapper(String pattern, String replacement, String splitter) {
+		entry.addMapper(new SimpleMapper("KEY_"+pattern, "KEY_"+pattern, keyType.getFileType()+splitter+keyType.getFileType()+replacement));
+		entry.addMapper(new SimpleMapper("VALUE_"+pattern, "VALUE_"+pattern, valueType.getFileType()+splitter+valueType.getFileType()+replacement));
+		entry.addMapper(new SimpleMapper(pattern, pattern, keyType.getFileType()+splitter+valueType.getFileType()+replacement));
+	}
+	
+	protected void addAbstractMapper(String pattern, String replacement) {
+		entry.addMapper(new SimpleMapper("VALUE_"+pattern, "VALUE_"+pattern, String.format(replacement, valueType.getFileType())));
+		entry.addMapper(new SimpleMapper(pattern, pattern, String.format(replacement, keyType.getFileType())));		
+	}
+	
+	protected void addAbstractBiMapper(String pattern, String replacement, String splitter) {
+		entry.addMapper(new SimpleMapper(pattern, pattern, String.format(replacement, keyType.getFileType()+splitter+valueType.getFileType())));
+	}
+	
+	protected void addFunctionMapper(String pattern, String replacement) {
+		entry.addMapper(new SimpleMapper("VALUE_"+pattern, "VALUE_"+pattern, replacement+valueType.getNonFileType()));
+		entry.addMapper(new SimpleMapper(pattern, pattern, replacement+keyType.getNonFileType()));
+	}
+	
+	protected void addFunctionValueMapper(String pattern, String replacement) {
+		entry.addMapper(new SimpleMapper(pattern, pattern, replacement+valueType.getNonFileType()));
+	}
+	
+	protected void addFunctionMappers(String pattern, String replacement) {
+		entry.addMapper(new SimpleMapper("VALUE_"+pattern, "VALUE_"+pattern, String.format(replacement, valueType.getNonFileType())));		
+		entry.addMapper(new SimpleMapper(pattern, pattern, String.format(replacement, keyType.getNonFileType())));		
+	}
+	
+	protected void addFunctionValueMappers(String pattern, String replacement) {
+		entry.addMapper(new SimpleMapper(pattern, pattern, String.format(replacement, valueType.getNonFileType())));		
+	}
+	
+	protected void addSimpleMapper(String pattern, String replacement) {
+		entry.addMapper(new SimpleMapper(pattern, pattern, replacement));
+	}
+	
+	protected void addAnnontion(String pattern, String value) {
+		if(keyType == ClassType.OBJECT) entry.addMapper(new LineMapper(pattern, pattern));
+		else entry.addMapper(new SimpleMapper(pattern, pattern, value));
+	}
+	
+	protected void addValueAnnontion(String pattern, String value) {
+		if(valueType == ClassType.OBJECT) entry.addMapper(new LineMapper(pattern, pattern));
+		else entry.addMapper(new SimpleMapper(pattern, pattern, value));
+	}
+	
+	protected void addComment(String pattern, String value) {
+		if(keyType == ClassType.OBJECT) entry.addMapper(new InjectMapper(pattern, pattern, value).removeBraces());
+		else entry.addMapper(new LineMapper(pattern, pattern));
+	}
+	
+	protected void addValueComment(String pattern, String value) {
+		if(valueType == ClassType.OBJECT) entry.addMapper(new InjectMapper(pattern, pattern, value).removeBraces());
+		else entry.addMapper(new LineMapper(pattern, pattern));
+	}
+	
+	protected InjectMapper addInjectMapper(String pattern, String replacement) {
+		InjectMapper mapper = new InjectMapper(pattern, pattern, replacement);
+		entry.addMapper(mapper);
+		return mapper;
+	}
+	
+	protected ArgumentMapper addArgumentMapper(String pattern, String replacement) {
+		return addArgumentMapper(pattern, replacement, ", ");
+	}
+	
+	protected ArgumentMapper addArgumentMapper(String pattern, String replacement, String splitter) {
+		ArgumentMapper mapper = new ArgumentMapper(pattern, pattern, replacement, splitter);
+		entry.addMapper(mapper);
+		return mapper;
+	}
+	
+	public static <T> T make(T input, Consumer<T> processor) {
+		processor.accept(input);
+		return input;
+	}
+}

src/builder/java/speiger/src/builder/modules/CollectionModule.java

@@ -0,0 +1,137 @@
+package speiger.src.builder.modules;
+
+import java.util.Arrays;
+import java.util.List;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.FunctionDependency;
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.dependencies.ModuleDependency;
+
+@SuppressWarnings("javadoc")
+public class CollectionModule extends BaseModule
+{
+	public static final BaseModule INSTANCE = new CollectionModule();
+	public static final ModuleDependency MODULE = new ModuleDependency(INSTANCE, false)
+			.addKeyDependency(FunctionModule.MODULE)
+			.addOptionalTypeDependency(FunctionModule.MODULE, ClassType.OBJECT, true)
+			.addOptionalTypeDependency(FunctionModule.MODULE, ClassType.INT, true)
+			.addOptionalTypeDependency(ClassType.OBJECT, true);
+	public static final FunctionDependency STREAMS = MODULE.createDependency("Streams");
+	public static final FunctionDependency SPLIT_ITERATORS = MODULE.createDependency("Splititerators").addKeyDependency(STREAMS);
+	public static final FunctionDependency IARRAY = MODULE.createDependency("IArray");
+	public static final FunctionDependency STRATEGY = MODULE.createDependency("Strategy");
+	
+	@Override
+	public String getModuleName() { return "Collection"; }
+	@Override
+	protected void loadVariables() {}
+	@Override
+	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) { return Arrays.asList(MODULE, STREAMS, SPLIT_ITERATORS, IARRAY, STRATEGY); }
+	
+	@Override
+	protected void loadFlags() {
+		if(MODULE.isEnabled()) addKeyFlag("COLLECTION_MODULE");
+		if(STREAMS.isEnabled()) addKeyFlag("STREAM_FEATURE");
+		if(SPLIT_ITERATORS.isEnabled()) addKeyFlag("SPLIT_ITERATOR_FEATURE");
+		if(IARRAY.isEnabled()) addKeyFlag("IARRAY_FEATURE");
+	}
+	
+	@Override
+	protected void loadBlockades() {
+		if(!MODULE.isEnabled()) {
+			addBlockedFiles("Iterable", "Iterables", "Iterator", "Iterators", "BidirectionalIterator", "ListIterator");
+			addBlockedFiles("Arrays", "Collection", "OrderedCollection", "AbstractCollection", "Collections", "Stack");
+		}
+		if(!SPLIT_ITERATORS.isEnabled()) addBlockedFiles("Splititerator", "Splititerators");
+		if(!IARRAY.isEnabled()) addBlockedFiles("IArray");
+		if(!STRATEGY.isEnabled()) addBlockedFiles("Strategy");
+		
+		if(keyType.isObject())
+		{
+			addBlockedFiles("Stack");
+			addBlockedFiles("CollectionStreamTester");
+		}
+		if(keyType == ClassType.BOOLEAN)
+		{
+			addBlockedFiles("CollectionRemoveIfTester", "CollectionStreamTester");
+			addBlockedFilter(T -> T.endsWith("Tester") && T.startsWith("Iterable"));
+		}
+	}
+	
+	@Override
+	protected void loadRemappers()
+	{
+		//Main Classes
+		addRemapper("IArray", "I%sArray");
+		addRemapper("AbstractCollection", "Abstract%sCollection");
+		
+		//Test Classes
+		addRemapper("AbstractIteratorTester", "Abstract%sIteratorTester");
+		addRemapper("MinimalCollection", "Minimal%sCollection");
+		addRemapper("TestCollectionGenerator", "Test%sCollectionGenerator");
+		addRemapper("AbstractContainerTester", "Abstract%sContainerTester");
+		addRemapper("AbstractCollectionTester", "Abstract%sCollectionTester");
+		addRemapper("SimpleTestGenerator", "Simple%sTestGenerator");
+	}
+	
+	@Override
+	protected void loadFunctions()
+	{
+		addFunctionMapper("NEXT", "next");
+		addSimpleMapper("NEW_STREAM", keyType.isPrimitiveBlocking() ? "" : keyType.getCustomJDKType().getKeyType()+"Stream");
+		addFunctionMapper("PREVIOUS", "previous");
+		addFunctionMapper("REMOVE_KEY", "rem");
+		addSimpleMapper("TO_ARRAY", "to"+keyType.getNonFileType()+"Array");
+		addSimpleMapper("VALUE_TO_ARRAY", "to"+valueType.getNonFileType()+"Array");
+	}
+	
+	@Override
+	protected void loadClasses()
+	{
+		//Abstract Classes
+		addAbstractMapper("ABSTRACT_COLLECTION", "Abstract%sCollection");
+		addAbstractMapper("REVERSED_ORDERED_COLLECTION", "Reverse%sOrderedCollection");
+		
+		//Helper Classes
+		addClassMapper("ARRAYS", "Arrays");
+		addClassMapper("COLLECTIONS", "Collections");
+		addClassMapper("ITERABLES", "Iterables");
+		addClassMapper("SPLIT_ITERATORS", "Splititerators");
+		addClassMapper("ITERATORS", "Iterators");
+		
+		//Interfaces
+		addClassMapper("COLLECTION", "Collection");
+		addClassMapper("ORDERED_COLLECTION", "OrderedCollection");
+		addClassMapper("ITERABLE", "Iterable");
+		addClassMapper("SPLIT_ITERATOR", "Splititerator");
+		addClassMapper("LIST_ITERATOR", "ListIterator");
+		addClassMapper("BI_ITERATOR", "BidirectionalIterator");
+		addClassMapper("ITERATOR", "Iterator");
+		if(keyType.isObject()) addSimpleMapper("STACK", "Stack");
+		else addClassMapper("STACK", "Stack");
+		addClassMapper("STRATEGY", "Strategy");
+	}
+	
+	@Override
+	protected void loadTestClasses()
+	{
+		//Implementation Classes
+		addAbstractMapper("MINIMAL_COLLECTION", "Minimal%sCollection");
+		addClassMapper("BIDIRECTIONAL_ITERATOR_TESTER", "BidirectionalteratorTester");
+		addClassMapper("LIST_ITERATOR_TESTER", "ListIteratorTester");
+		addClassMapper("ITERATOR_TESTER", "IteratorTester");
+		addClassMapper("COLLECTION_TEST_BUILDER", "CollectionTestSuiteBuilder");
+		addClassMapper("COLLECTION_CONSTRUCTOR_TESTS", "CollectionConstructorTests");
+		
+		//Abstract Classes
+		addAbstractMapper("ABSTRACT_COLLECTION_TESTER", "Abstract%sCollectionTester");
+		addAbstractMapper("ABSTRACT_CONTAINER_TESTER", "Abstract%sContainerTester");
+		addAbstractMapper("ABSTRACT_ITERATOR_TESTER", "Abstract%sIteratorTester");
+		
+		//Helper Classes
+		addAbstractMapper("TEST_COLLECTION_GENERATOR", "Test%sCollectionGenerator");
+		addAbstractMapper("SIMPLE_TEST_GENERATOR", "Simple%sTestGenerator");
+
+	}
+}

src/builder/java/speiger/src/builder/modules/FunctionModule.java

@@ -0,0 +1,123 @@
+package speiger.src.builder.modules;
+
+import java.util.Arrays;
+import java.util.List;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.RequiredType;
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.dependencies.ModuleDependency;
+
+@SuppressWarnings("javadoc")
+public class FunctionModule extends BaseModule
+{
+	public static final BaseModule INSTANCE = new FunctionModule();
+	public static final ModuleDependency MODULE = new ModuleDependency(INSTANCE, false).addKeyDependency(JavaModule.MODULE);
+	
+	@Override
+	public String getModuleName() { return "Function"; }
+	@Override
+	public boolean isBiModule() { return true; }
+	@Override
+	protected void loadVariables() {}
+	@Override
+	protected void loadFlags() {}
+	@Override
+	protected void loadTestClasses() {}
+	
+	@Override
+	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) {
+		return Arrays.asList(MODULE);
+	}
+	
+	@Override
+	protected void loadBlockades()
+	{
+		if(keyType.isObject()) addBlockedFiles("Consumer", "Comparator");
+		if(!MODULE.isEnabled()) addBlockedFiles("Consumer", "BiConsumer", "Comparator", "Supplier", "Optional", "Function", "UnaryOperator");
+		if(!keyType.needsCustomJDKType()) addBlockedFiles("Optional");
+	}
+	
+	@Override
+	protected void loadRemappers()
+	{
+		addBiRequirement("BiConsumer", "");
+		addBiRequirement("UnaryOperator", "");
+		if(valueType == ClassType.BOOLEAN) {
+			addRequirement("Function", "%1$s", RequiredType.BI_CLASS);
+			addRemapper("Function", (keyType.isObject() ? "" : "%s")+"Predicate");
+		}
+		else if(keyType.isObject() && !valueType.isObject()) {
+			addRequirement("Function", "%2$s", RequiredType.BI_CLASS);
+			addRemapper("Function", "To%sFunction");			
+		}
+		else if(keyType == valueType) {
+			addRequirement("Function", "%1$s", RequiredType.BI_CLASS);
+			addRemapper("Function", (keyType.isObject() ? "" : "%s")+"UnaryOperator");
+		}
+		else if(valueType.isObject()) {
+			addRequirement("Function", "%1$s", RequiredType.BI_CLASS);
+			addRemapper("Function", "%sFunction");
+		}
+		else addBiRequirement("Function");
+		addRemapper("BiConsumer", "%sConsumer");
+		addRemapper("Optional", "Optional%s");
+	}
+	
+	@Override
+	protected void loadFunctions()
+	{
+		addSimpleMapper("APPLY", keyType.getApply(valueType));
+		addSimpleMapper("SUPPLY_GET", keyType.isObject() ? "get" : "getAs"+keyType.getNonFileType());
+		addSimpleMapper("VALUE_SUPPLY_GET", valueType.isObject() ? "get" : "getAs"+valueType.getNonFileType());
+	}
+	
+	@Override
+	protected void loadClasses()
+	{
+		//Interfaces
+		addBiClassMapper("BI_CONSUMER", "Consumer", "");
+		addClassMapper("BI_TO_OBJECT_CONSUMER", "ObjectConsumer");
+		addAbstractMapper("BI_FROM_OBJECT_CONSUMER", "Object%sConsumer");
+		addAbstractMapper("BI_FROM_INT_CONSUMER", "Int%sConsumer");
+		if(keyType.isObject()) {
+			addSimpleMapper("TO_OBJECT_FUNCTION", keyType.getNonFileType()+"UnaryOperator");
+			addSimpleMapper("VALUE_TO_OBJECT_FUNCTION", valueType.isObject() ? "UnaryOperator" : valueType.getFileType()+"Function");
+		}
+		else {
+			addSimpleMapper("TO_OBJECT_FUNCTION", keyType.getNonFileType()+"Function");
+			addSimpleMapper("VALUE_TO_OBJECT_FUNCTION", valueType.isObject() ? "UnaryOperator" : valueType.getFileType()+"Function");
+		}
+		if(valueType == ClassType.BOOLEAN) addFunctionMappers("FUNCTION", "%sPredicate");
+		else if(keyType.isObject() && !valueType.isObject()) addFunctionValueMappers("FUNCTION", "To%sFunction");
+		else if(keyType == valueType) addFunctionMappers("FUNCTION", "%sUnaryOperator");
+		else if(valueType.isObject()) addFunctionMappers("FUNCTION", "%sFunction");
+		else addBiClassMapper("FUNCTION", "Function", "2");
+		
+		addFunctionMappers("PREDICATE", "%sPredicate");
+		addClassMapper("SUPPLIER", "Supplier");
+		addSimpleMapper("OPTIONAL", keyType.isObject() ? "Optional" : String.format("Optional%s", keyType.getFileType()));
+		addSimpleMapper("VALUE_OPTIONAL", valueType.isObject() ? "Optional" : String.format("Optional%s", valueType.getFileType()));
+		addAbstractMapper("SINGLE_UNARY_OPERATOR", "%1$s%1$sUnaryOperator");
+		addBiClassMapper("UNARY_OPERATOR", "UnaryOperator", "");
+		if(keyType.isObject())
+		{
+			if(!valueType.isObject()) addSimpleMapper("VALUE_CONSUMER", valueType.getFileType()+"Consumer");
+			else addSimpleMapper("VALUE_CONSUMER", "Consumer");
+			addSimpleMapper("CONSUMER", "Consumer");
+			addSimpleMapper("IARRAY", "IObjectArray");
+		}
+		else
+		{
+			if(valueType.isObject()) 
+			{
+				addSimpleMapper("VALUE_CONSUMER", "Consumer");
+				addSimpleMapper("CONSUMER", keyType.getFileType()+"Consumer");
+			}
+			else addClassMapper("CONSUMER", "Consumer");
+			addFunctionMappers("IARRAY", "I%sArray");
+		}
+		addSimpleMapper("VALUE_COMPARATOR", valueType.isObject() ? "Comparator" : String.format("%sComparator", valueType.getNonFileType()));
+		addSimpleMapper("COMPARATOR", keyType.isObject() ? "Comparator" : String.format("%sComparator", keyType.getNonFileType()));
+	}
+}

src/builder/java/speiger/src/builder/modules/JavaModule.java

@@ -0,0 +1,235 @@
+package speiger.src.builder.modules;
+
+import java.util.Arrays;
+import java.util.List;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.dependencies.ModuleDependency;
+
+@SuppressWarnings("javadoc")
+public class JavaModule extends BaseModule
+{
+	public static final BaseModule INSTANCE = new JavaModule();
+	public static final ModuleDependency MODULE = new ModuleDependency(INSTANCE, false);
+	
+	@Override
+	public String getModuleName() { return "Base"; }
+	@Override
+	protected void loadVariables()
+	{
+		createHelperVars(keyType, false, "KEY");
+		createHelperVars(valueType, true, "VALUE");
+		loadBaseVariables();
+	}
+	
+	@Override
+	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) {
+		return Arrays.asList(MODULE);
+	}
+	
+	@Override
+	protected void loadFlags()
+	{
+		addFlag("TYPE_"+keyType.getCapType());
+		addFlag("VALUE_"+valueType.getCapType());
+		addValue("JAVA_VERSION", getVersion());
+		if(keyType == valueType) addFlag("SAME_TYPE");
+		if(keyType.hasFunction(valueType)) addFlag("JDK_FUNCTION");
+		if(!keyType.needsCustomJDKType()) addFlag("JDK_TYPE");
+		if(!keyType.isPrimitiveBlocking()) addFlag("PRIMITIVES");
+		if(!valueType.isPrimitiveBlocking()) addFlag("VALUE_PRIMITIVES");
+		if(!valueType.needsCustomJDKType()) addFlag("JDK_VALUE");
+	}
+	
+	private int getVersion()  {
+		String version = System.getProperty("java.version");
+		if(version.startsWith("1.")) return Integer.parseInt(version.substring(2, 3));
+		int dot = version.indexOf(".");
+		return Integer.parseInt(dot != -1 ? version.substring(0, dot) : version);
+	}
+	
+	@Override
+	protected void loadRemappers() {}
+	@Override
+	protected void loadBlockades() {}
+	
+	@Override
+	protected void loadFunctions()
+	{
+		addSimpleMapper("APPLY_KEY_VALUE", keyType.isObject() ? "apply" : "applyAs"+keyType.getNonFileType());
+		addSimpleMapper("APPLY_VALUE", valueType.isObject() ? "apply" : "applyAs"+valueType.getNonFileType());
+		addSimpleMapper("APPLY_CAST", "applyAs"+keyType.getCustomJDKType().getNonFileType());
+		addSimpleMapper("GET_OPTIONAL", keyType.isObject() ? "ofNullable" : "of");
+		addSimpleMapper("GET_OPTIONAL_VALUE", valueType.isObject() ? "ofNullable" : "of");
+		
+		//Shared by Maps and Pairs so moved to java.
+		addFunctionMappers("ENTRY_KEY", "get%sKey");
+		addFunctionValueMappers("ENTRY_VALUE", "get%sValue");
+		addFunctionMappers("KEY_ENTRY", "set%sKey");
+		addFunctionValueMappers("VALUE_ENTRY", "set%sValue");
+	}
+	
+	@Override
+	protected void loadClasses()
+	{
+		if(getVersion() >= 17) addSimpleMapper("RANDOM", "RandomGenerator");
+		else addSimpleMapper("RANDOM", "Random");
+		addSimpleMapper("JAVA_PREDICATE", keyType.isPrimitiveBlocking() ? "" : keyType.getCustomJDKType().getFileType()+"Predicate");
+		addSimpleMapper("JAVA_CONSUMER", keyType.isPrimitiveBlocking() ? "" : "java.util.function."+keyType.getCustomJDKType().getFileType()+"Consumer");
+		addSimpleMapper("JAVA_SUPPLIER", keyType.isPrimitiveBlocking() ? "" : "java.util.function."+keyType.getCustomJDKType().getFileType()+"Supplier");
+		addSimpleMapper("JAVA_FUNCTION", keyType.getFunctionClass(valueType));
+		addSimpleMapper("JAVA_BINARY_OPERATOR", keyType == ClassType.BOOLEAN ? "" : (keyType.isObject() ? "java.util.function.BinaryOperator" : "java.util.function."+keyType.getCustomJDKType().getFileType()+"BinaryOperator"));
+		addSimpleMapper("JAVA_UNARY_OPERATOR", keyType.isObject() ? "BinaryOperator" : keyType == ClassType.BOOLEAN ? "" : keyType.getCustomJDKType().getFileType()+"UnaryOperator");
+		addSimpleMapper("JAVA_SPLIT_ITERATOR", keyType.isPrimitiveBlocking() ? "Spliterator" : "Of"+keyType.getCustomJDKType().getFileType());
+		addSimpleMapper("JAVA_STREAM", keyType.isPrimitiveBlocking() ? "" : keyType.getCustomJDKType().getFileType()+"Stream");
+		addSimpleMapper("JAVA_BUFFER", keyType.getFileType()+"Buffer");
+	}
+	
+	@Override
+	protected void loadTestClasses()
+	{
+		addClassMapper("HELPERS", "Helpers");
+		addClassMapper("SAMPLE_ELEMENTS", "Samples");
+	}
+	
+	private void loadBaseVariables()
+	{
+		addSimpleMapper("VALUE_PACKAGE", valueType.getPathType());
+		addSimpleMapper("PACKAGE", keyType.getPathType());
+		addSimpleMapper("CLASS_TYPE", keyType.getClassType());
+		addSimpleMapper("CLASS_VALUE_TYPE", valueType.getClassValueType());
+		addSimpleMapper("KEY_TYPE", keyType.getKeyType());
+		addSimpleMapper("KEY_OBJECT_TYPE", keyType.isObject() ? "Object" : keyType.getKeyType());
+		addSimpleMapper("KEY_STRING_TYPE", keyType.isObject() ? "String" : keyType.getKeyType());
+		addSimpleMapper("KEY_SPECIAL_TYPE", keyType.isObject() ? "E" : keyType.getKeyType());
+		addSimpleMapper("CLASS_OBJECT_TYPE", keyType.getClassType());
+		addSimpleMapper("CLASS_OBJECT_VALUE_TYPE", valueType.getClassValueType());
+		addSimpleMapper("CLASS_STRING_TYPE", keyType.isObject() ? "String" : keyType.getClassType());
+		addSimpleMapper("CLASS_STRING_VALUE_TYPE", valueType.isObject() ? "String" : valueType.getClassValueType());
+		addSimpleMapper("VALUE_TYPE", valueType.getValueType());
+		addSimpleMapper("VALUE_OBJECT_TYPE", valueType.isObject() ? "Object" : valueType.getValueType());
+		addSimpleMapper("VALUE_STRING_TYPE", valueType.isObject() ? "String" : valueType.getValueType());
+		addSimpleMapper("VALUE_SPECIAL_TYPE", valueType.isObject() ? "E" : valueType.getKeyType());
+		addSimpleMapper("KEY_JAVA_TYPE", keyType.getCustomJDKType().getKeyType());
+		addSimpleMapper("VALUE_JAVA_TYPE", keyType.getCustomJDKType().getKeyType());
+		
+		addSimpleMapper("EMPTY_KEY_VALUE", keyType.getEmptyValue());
+		addSimpleMapper("EMPTY_VALUE", valueType.getEmptyValue());
+		
+		addSimpleMapper("INVALID_KEY_VALUE", keyType.getInvalidValue());
+		addSimpleMapper("INVALID_VALUE", valueType.getInvalidValue());
+		
+		addSimpleMapper(" KEY_STRING_GENERIC_TYPE", keyType.isObject() ? "<String>" : "");
+		addSimpleMapper(" VALUE_STRING_GENERIC_TYPE", valueType.isObject() ? "<String>" : "");
+		addSimpleMapper(" KEY_VALUE_STRING_GENERIC_TYPE", keyType.isObject() ? (valueType.isObject() ? "<String, String>" : "<String>") : (valueType.isObject() ? "<String>" : ""));
+		
+		addSimpleMapper(" KEY_SAME_GENERIC_TYPE", keyType.isObject() ? "<T, T>" : "");
+		addSimpleMapper(" VALUE_SAME_GENERIC_TYPE", keyType.isObject() ? "<V, V>" : "");
+		
+		addSimpleMapper(" KEY_GENERIC_TYPE", keyType.isObject() ? "<"+keyType.getKeyType()+">" : "");
+		addSimpleMapper(" KEY_KEY_GENERIC_TYPE", keyType.isObject() ? "<"+keyType.getKeyType()+", "+keyType.getKeyType()+">" : "");
+		addSimpleMapper(" KEY_CLASS_GENERIC_TYPE", keyType.isObject() ? "<"+keyType.getClassType()+">" : "");
+
+		
+		addSimpleMapper(" VALUE_GENERIC_TYPE", valueType.isObject() ? "<"+valueType.getValueType()+">" : "");
+		addSimpleMapper(" VALUE_VALUE_GENERIC_TYPE", valueType.isObject() ? "<"+valueType.getValueType()+", "+valueType.getValueType()+">" : "");
+		addSimpleMapper(" VALUE_CLASS_GENERIC_TYPE", valueType.isObject() ? "<"+valueType.getClassValueType()+">" : "");
+		
+		addSimpleMapper(" KEY_VALUE_GENERIC_TYPE", keyType.isObject() ? (valueType.isObject() ? "<"+keyType.getKeyType()+", "+valueType.getValueType()+">" : "<"+keyType.getKeyType()+">") : (valueType.isObject() ? "<"+valueType.getValueType()+">" : ""));
+		addSimpleMapper(" KEY_VALUE_VALUE_GENERIC_TYPE", keyType.isObject() ? (valueType.isObject() ? "<"+keyType.getKeyType()+", "+valueType.getValueType()+", "+valueType.getValueType()+">" : "<"+keyType.getKeyType()+">") : (valueType.isObject() ? "<"+valueType.getValueType()+", "+valueType.getValueType()+">" : ""));
+		addInjectMapper(" KEY_VALUE_SPECIAL_GENERIC_TYPE", keyType.isObject() ? (valueType.isObject() ? "<"+keyType.getKeyType()+", "+valueType.getValueType()+", %s>" : "<"+keyType.getKeyType()+", %s>") : (valueType.isObject() ? "<"+valueType.getValueType()+", %s>" : "<%s>")).setBraceType("<>").removeBraces();
+		
+		addSimpleMapper(" NO_GENERIC_TYPE", keyType.isObject() ? "<?>" : "");
+		addSimpleMapper(" NO_KV_GENERIC_TYPE", keyType.isObject() ? (valueType.isObject() ? "<?, ?>" : "<?>") : valueType.isObject() ? "<?>" : "");
+		addSimpleMapper(" KEY_COMPAREABLE_TYPE", keyType.isObject() ? "<"+keyType.getKeyType()+" extends Comparable<T>>" : "");
+		
+		addSimpleMapper(" KEY_SUPER_GENERIC_TYPE", keyType.isObject() ? "<? super "+keyType.getKeyType()+">" : "");
+		addSimpleMapper(" VALUE_SUPER_GENERIC_TYPE", valueType.isObject() ? "<? super "+valueType.getValueType()+">" : "");
+		addSimpleMapper(" KEY_VALUE_SUPER_GENERIC_TYPE", keyType.isObject() ? (valueType.isObject() ? "<? super "+keyType.getKeyType()+", ? super "+valueType.getValueType()+">" : "<? super "+keyType.getKeyType()+">") : (valueType.isObject() ? "<? super "+valueType.getValueType()+">" : ""));
+		
+		addSimpleMapper(" KEY_UNKNOWN_GENERIC_TYPE", keyType.isObject() ? "<? extends "+keyType.getKeyType()+">" : "");
+		addSimpleMapper(" VALUE_UNKNOWN_GENERIC_TYPE", valueType.isObject() ? "<? extends "+valueType.getValueType()+">" : "");
+		addSimpleMapper(" KEY_VALUE_UNKNOWN_GENERIC_TYPE", keyType.isObject() ? (valueType.isObject() ? "<? extends "+keyType.getKeyType()+", ? extends "+valueType.getValueType()+">" : "<? extends "+keyType.getKeyType()+">") : (valueType.isObject() ? "<? extends "+valueType.getValueType()+">" : ""));
+
+		addSimpleMapper(" KEY_ENUM_VALUE_GENERIC_TYPE", keyType.isObject() ? (valueType.isObject() ? "<"+keyType.getKeyType()+" extends Enum<"+keyType.getKeyType()+">, "+valueType.getValueType()+">" : "<"+keyType.getKeyType()+" extends Enum<"+keyType.getKeyType()+">>") : (valueType.isObject() ? "<"+valueType.getValueType()+">" : ""));
+		addSimpleMapper(" KEY_VALUE_ENUM_GENERIC_TYPE", keyType.isObject() ? (valueType.isObject() ? "<"+keyType.getKeyType()+", "+valueType.getValueType()+" extends Enum<"+valueType.getValueType()+">>" : "<"+keyType.getKeyType()+">") : (valueType.isObject() ? "<"+valueType.getValueType()+" extends Enum<"+valueType.getValueType()+">>" : ""));
+		
+		addInjectMapper(" KEY_SPECIAL_GENERIC_TYPE", keyType.isObject() ? "<%s>" : "").removeBraces().setBraceType("<>");
+		addInjectMapper(" VALUE_SPECIAL_GENERIC_TYPE", valueType.isObject() ? "<%s>" : "").removeBraces().setBraceType("<>");
+		addInjectMapper(" KSK_GENERIC_TYPE", keyType.isObject() ? "<%s, "+keyType.getKeyType()+">" : "<%s>").removeBraces().setBraceType("<>");
+		addInjectMapper(" KKS_GENERIC_TYPE", keyType.isObject() ? "<"+keyType.getKeyType()+", %s>" : "<%s>").removeBraces().setBraceType("<>");
+		addArgumentMapper(" KSS_GENERIC_TYPE", keyType.isObject() ? "<%1$s, %2$s>" : "<%2$s>").removeBraces().setBraceType("<>");		
+		addInjectMapper(" SK_GENERIC_TYPE", keyType.isObject() ? "<%s, "+keyType.getKeyType()+">" : "").removeBraces().setBraceType("<>");
+		addInjectMapper(" KS_GENERIC_TYPE", keyType.isObject() ? "<"+keyType.getKeyType()+", %s>" : "").removeBraces().setBraceType("<>");
+		addInjectMapper(" VSV_GENERIC_TYPE", valueType.isObject() ? "<%s, "+valueType.getValueType()+">" : "<%s>").removeBraces().setBraceType("<>");
+		addInjectMapper(" VVS_GENERIC_TYPE", valueType.isObject() ? "<"+valueType.getValueType()+", %s>" : "<%s>").removeBraces().setBraceType("<>");
+		addArgumentMapper(" VSS_GENERIC_TYPE", valueType.isObject() ? "<%1$s, %2$s>" : "<%2$s>").removeBraces().setBraceType("<>");	
+		addInjectMapper(" SV_GENERIC_TYPE", valueType.isObject() ? "<%s, "+valueType.getValueType()+">" : "").removeBraces().setBraceType("<>");
+		addInjectMapper(" VS_GENERIC_TYPE", valueType.isObject() ? "<"+valueType.getValueType()+", %s>" : "").removeBraces().setBraceType("<>");
+
+
+		addSimpleMapper(" GENERIC_KEY_BRACES", keyType.isObject() ? " <"+keyType.getKeyType()+">" : "");
+		addSimpleMapper(" GENERIC_VALUE_BRACES", valueType.isObject() ? " <"+valueType.getValueType()+">" : "");
+		addInjectMapper(" GENERIC_SPECIAL_KEY_BRACES", keyType.isObject() ? " <%s>" : "").removeBraces().setBraceType("<>");
+		addInjectMapper(" GENERIC_SPECIAL_VALUE_BRACES", valueType.isObject() ? " <%s>" : "").removeBraces().setBraceType("<>");
+		addSimpleMapper(" GENERIC_KEY_ENUM_VALUE_BRACES", keyType.isObject() ? (valueType.isObject() ? " <"+keyType.getKeyType()+" extends Enum<"+keyType.getKeyType()+">, "+valueType.getValueType()+">" : " <"+keyType.getKeyType()+" extends Enum<"+keyType.getKeyType()+">>") : (valueType.isObject() ? " <"+valueType.getValueType()+">" : ""));
+		
+		addInjectMapper(" GENERIC_KEY_SPECIAL_BRACES", keyType.isObject() ? " <"+keyType.getKeyType()+", %s>" : " <%s>").removeBraces().setBraceType("<>");
+		addInjectMapper(" GENERIC_VALUE_SPECIAL_BRACES", valueType.isObject() ? " <"+valueType.getKeyType()+", %s>" : " <%s>").removeBraces().setBraceType("<>");
+		
+		addSimpleMapper(" GENERIC_KEY_VALUE_BRACES", keyType.isObject() ? (valueType.isObject() ? " <"+keyType.getKeyType()+", "+valueType.getValueType()+">" : " <"+keyType.getKeyType()+">") : (valueType.isObject() ? " <"+valueType.getValueType()+">" : ""));
+		addSimpleMapper(" COMPAREABLE_KEY_BRACES", keyType.isObject() ? " <"+keyType.getKeyType()+" extends Comparable<T>>" : "");
+		addSimpleMapper("KV_BRACES", keyType.isObject() || valueType.isObject() ? "<>" : "");
+		addSimpleMapper("VALUE_BRACES", valueType.isObject() ? "<>" : "");
+		addSimpleMapper("BRACES", keyType.isObject() ? "<>" : "");
+		if(keyType.needsCustomJDKType())
+		{
+			addSimpleMapper("JAVA_TYPE", keyType.getCustomJDKType().getKeyType());
+			addSimpleMapper("SANITY_CAST", "castTo"+keyType.getFileType());
+		}
+		addSimpleMapper("JAVA_CLASS", keyType.getCustomJDKType().getClassType());
+		if(valueType.needsCustomJDKType())
+		{
+			addSimpleMapper("SANITY_CAST_VALUE", "castTo"+valueType.getFileType());
+		}
+		addSimpleMapper("[SPACE]", " ");
+		addComment("@ArrayType", "@param <%s> the keyType of array that the operation should be applied");
+		addComment("@Type", "@param <%s> the keyType of elements maintained by this Collection");
+		addValueComment("@ValueArrayType", "@param <%s> the keyType of array that the operation should be applied");
+		addValueComment("@ValueType", "@param <%s> the keyType of elements maintained by this Collection");
+		addSimpleMapper("@Java21", getVersion() >= 21 ? "@Override" : "");
+		addAnnontion("@PrimitiveOverride", "@Override");
+		addSimpleMapper("@PrimitiveDoc", "");
+		addAnnontion("@Primitive", "@Deprecated");
+		addValueAnnontion("@ValuePrimitiveOverride", "@Override");
+		addValueAnnontion("@ValuePrimitive", "@Deprecated");
+	}
+	
+	private void createHelperVars(ClassType type, boolean value, String fix)
+	{
+		addArgumentMapper("EQUALS_"+fix+"_TYPE", "Objects.equals(%2$s, "+(type.isObject() ? "%1$s" : fix+"_TO_OBJ(%1$s)")+")").removeBraces();
+		addInjectMapper(fix+"_EQUALS_NOT_NULL", type.getComparableValue()+" != "+(type.isPrimitiveBlocking() || type.needsCast() ? type.getEmptyValue() : "0")).removeBraces();
+		addInjectMapper(fix+"_EQUALS_NULL", type.getComparableValue()+" == "+(type.isPrimitiveBlocking() || type.needsCast() ? type.getEmptyValue() : "0")).removeBraces();
+		addArgumentMapper(fix+"_EQUALS_NOT", type.getEquals(true)).removeBraces();
+		addArgumentMapper(fix+"_EQUALS", type.getEquals(false)).removeBraces();
+		addSimpleMapper("FILE_"+fix+"_TYPE", type.getFileType());
+		
+		addArgumentMapper("COMPAREABLE_TO_"+fix, type.isObject() ? "((Comparable<"+type.getKeyType(value)+">)%1$s).compareTo(("+type.getKeyType(value)+")%2$s)" : type.getClassType(value)+".compare(%1$s, %2$s)").removeBraces();
+		addArgumentMapper("COMPARE_TO_"+fix, type.isObject() ? "%1$s.compareTo(%2$s)" : type.getClassType(value)+".compare(%1$s, %2$s)").removeBraces();
+		
+		addInjectMapper(fix+"_TO_OBJ", type.isObject() ? "%s" : type.getClassType(value)+".valueOf(%s)").removeBraces();
+		addInjectMapper("OBJ_TO_"+fix, type.isObject() ? "%s" : "%s."+type.getKeyType(value)+"Value()").removeBraces();
+		addInjectMapper("CLASS_TO_"+fix, type.isObject() ? "("+type.getKeyType(value)+")%s" : "(("+type.getClassType(value)+")%s)."+type.getKeyType(value)+"Value()").removeBraces();
+		
+		addInjectMapper(fix+"_TO_HASH", type.isObject() ? "Objects.hashCode(%s)" : type.getClassType(value)+".hashCode(%s)").removeBraces();
+		addInjectMapper(fix+"_TO_STRING", type.isObject() ? "Objects.toString(%s)" : type.getClassType(value)+".toString(%s)").removeBraces();
+		
+		addSimpleMapper("CAST_"+fix+"_ARRAY ", type.isObject() ? "("+fix+"_TYPE[])" : "");
+		addSimpleMapper("EMPTY_"+fix+"_ARRAY", type.isObject() ? "("+fix+"_TYPE[])ARRAYS.EMPTY_ARRAY" : "ARRAYS.EMPTY_ARRAY");
+		addInjectMapper("NEW_"+fix+"_ARRAY", type.isObject() ? "("+fix+"_TYPE[])new Object[%s]" : "new "+fix+"_TYPE[%s]").removeBraces();
+		addInjectMapper("NEW_SPECIAL_"+fix+"_ARRAY", type.isObject() ? "(E[])new Object[%s]" : "new "+fix+"_TYPE[%s]").removeBraces();
+		if(value) addInjectMapper("NEW_CLASS_VALUE_ARRAY", type.isObject() ? "(CLASS_VALUE_TYPE[])new Object[%s]" : "new CLASS_VALUE_TYPE[%s]").removeBraces();
+		else addInjectMapper("NEW_CLASS_ARRAY", type.isObject() ? "(CLASS_TYPE[])new Object[%s]" : "new CLASS_TYPE[%s]").removeBraces();
+	}
+}

src/builder/java/speiger/src/builder/modules/ListModule.java

@@ -0,0 +1,120 @@
+package speiger.src.builder.modules;
+
+import java.util.Arrays;
+import java.util.List;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.FunctionDependency;
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.dependencies.ModuleDependency;
+
+@SuppressWarnings("javadoc")
+public class ListModule extends BaseModule
+{
+	public static final BaseModule INSTANCE = new ListModule();
+	public static final ModuleDependency MODULE = new ModuleDependency(INSTANCE, false).addKeyDependency(CollectionModule.MODULE).addKeyDependency(CollectionModule.SPLIT_ITERATORS);
+	public static final FunctionDependency IMPLEMENTATION = MODULE.createDependency("Implementations");
+	public static final FunctionDependency WRAPPERS = MODULE.createDependency("Wrappers");
+	public static final FunctionDependency ARRAY_LIST = MODULE.createDependency("ArrayList").addKeyDependency(IMPLEMENTATION);
+	public static final FunctionDependency LINKED_LIST = MODULE.createDependency("LinkedList").addKeyDependency(IMPLEMENTATION);
+	public static final FunctionDependency IMMUTABLE_LIST = MODULE.createDependency("ImmutableList").addKeyDependency(IMPLEMENTATION);
+	public static final FunctionDependency COPY_ON_WRITE_LIST = MODULE.createDependency("CopyOnWriteList").addKeyDependency(IMPLEMENTATION);
+	
+	@Override
+	public String getModuleName() { return "List"; }
+	@Override
+	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) { return Arrays.asList(MODULE, IMPLEMENTATION, WRAPPERS, ARRAY_LIST, LINKED_LIST, IMMUTABLE_LIST, COPY_ON_WRITE_LIST); }
+	@Override
+	protected void loadVariables() {}
+	@Override
+	protected void loadFlags() {
+		if(MODULE.isEnabled()) addKeyFlag("LIST_MODULE");
+		if(WRAPPERS.isEnabled()) addKeyFlag("LISTS_FEATURE");
+		if(ARRAY_LIST.isEnabled()) addKeyFlag("ARRAY_LIST_FEATURE");
+		if(LINKED_LIST.isEnabled()) addKeyFlag("LINKED_LIST_FEATURE");
+		if(IMMUTABLE_LIST.isEnabled()) addKeyFlag("IMMUTABLE_LIST_FEATURE");
+		if(COPY_ON_WRITE_LIST.isEnabled()) addKeyFlag("COPY_ON_WRITE_LIST_FEATURE");
+	}
+	
+	@Override
+	protected void loadBlockades()
+	{
+		if(!WRAPPERS.isEnabled()) addBlockedFiles("Lists");
+		if(!ARRAY_LIST.isEnabled()) addBlockedFiles("ArrayList");
+		if(!LINKED_LIST.isEnabled()) addBlockedFiles("LinkedList");
+		if(!IMMUTABLE_LIST.isEnabled()) addBlockedFiles("ImmutableList");
+		if(!COPY_ON_WRITE_LIST.isEnabled()) addBlockedFiles("CopyOnWriteList");
+		if(!MODULE.isEnabled()) addBlockedFiles("List", "AbstractList");
+		
+		
+		if(keyType.isObject()) addBlockedFiles("ListFillBufferTester");
+		if(keyType == ClassType.BOOLEAN) addBlockedFiles("ListFillBufferTester", "ListReplaceAllTester");
+	}
+	
+
+	
+	@Override
+	protected void loadRemappers()
+	{
+		//Main Classes
+		addRemapper("AbstractList", "Abstract%sList");
+		addRemapper("ImmutableList", "Immutable%sList");
+		addRemapper("CopyOnWriteList", "CopyOnWrite%sArrayList");
+		
+		//Test Classes
+		addRemapper("AbstractListTester", "Abstract%sListTester");
+		addRemapper("AbstractListIndexOfTester", "Abstract%sListIndexOfTester");
+		addRemapper("TestListGenerator", "Test%sListGenerator");
+	}
+	
+	@Override
+	protected void loadFunctions()
+	{
+		addFunctionMapper("GET_KEY", "get");
+		addFunctionMapper("GET_FIRST_KEY", "getFirst");
+		addFunctionMapper("GET_LAST_KEY", "getLast");
+		addFunctionMapper("REMOVE_FIRST_KEY", "removeFirst");
+		addFunctionMapper("REMOVE_LAST_KEY", "removeLast");
+		addFunctionMapper("REMOVE_SWAP", "swapRemove");
+		addFunctionMappers("REPLACE", keyType.isObject() ? "replaceObjects" : "replace%ss");
+		addFunctionMappers("SORT", "sort%ss");
+	}
+	
+	@Override
+	protected void loadClasses()
+	{
+		//Implementation Classes
+		addClassMapper("ARRAY_LIST", "ArrayList");
+		addAbstractMapper("COPY_ON_WRITE_LIST", "CopyOnWrite%sArrayList");
+		addClassMapper("LINKED_LIST", "LinkedList");
+		addAbstractMapper("IMMUTABLE_LIST", "Immutable%sList");
+		
+		//Abstract Classes
+		addAbstractMapper("ABSTRACT_LIST", "Abstract%sList");
+		
+		//SubClasses
+		addClassMapper("SUB_LIST", "SubList");
+		addClassMapper("LIST_ITER", "ListIter");
+		
+		//Helper Classes
+		addClassMapper("LISTS", "Lists");
+		
+		//Interfaces
+		addClassMapper("LIST", "List");
+	}
+	
+	@Override
+	protected void loadTestClasses()
+	{
+		//Implementation Classes
+		addClassMapper("LIST_TEST_BUILDER", "ListTestSuiteBuilder");
+		addClassMapper("LIST_TESTS", "ListTests");
+
+		//Abstract Classes
+		addAbstractMapper("ABSTRACT_LIST_INDEX_OF_TESTER", "Abstract%sListIndexOfTester");
+		addAbstractMapper("ABSTRACT_LIST_TESTER", "Abstract%sListTester");
+		
+		//Helper classes
+		addAbstractMapper("TEST_LIST_GENERATOR", "Test%sListGenerator");
+	}
+}

src/builder/java/speiger/src/builder/modules/MapModule.java

@@ -0,0 +1,308 @@
+package speiger.src.builder.modules;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.FunctionDependency;
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.dependencies.ModuleDependency;
+
+@SuppressWarnings("javadoc")
+public class MapModule extends BaseModule
+{
+	public static final BaseModule INSTANCE = new MapModule();
+	public static final ModuleDependency MODULE = new ModuleDependency(INSTANCE, true)
+			.addKeyDependency(SetModule.MODULE)
+			.addValueDependency(CollectionModule.MODULE)
+			.addEntryDependency(SetModule.MODULE)
+			.addTypeDependency(SetModule.MODULE, ClassType.OBJECT);
+	public static final FunctionDependency IMPLEMENTATION = MODULE.createDependency("Implementations");
+	public static final FunctionDependency WRAPPERS = MODULE.createDependency("Wrappers").addKeyDependency(SetModule.WRAPPERS).addOptionalTypeDependency(SetModule.WRAPPERS, ClassType.OBJECT, true);
+
+	public static final FunctionDependency ORDERED_MAP = MODULE.createDependency("OrderedMap").addKeyDependency(SetModule.ORDERED_SET).addOptionalTypeDependency(SetModule.ORDERED_SET, ClassType.OBJECT, true);
+	public static final FunctionDependency SORTED_MAP = MODULE.createDependency("SortedMap").addKeyDependency(SetModule.SORTED_SET).addOptionalTypeDependency(SetModule.SORTED_SET, ClassType.OBJECT, true);
+
+	public static final FunctionDependency ARRAY_MAP = MODULE.createDependency("ArrayMap").addEntryDependency(ORDERED_MAP).addEntryDependency(IMPLEMENTATION);
+	public static final FunctionDependency IMMUTABLE_MAP = MODULE.createDependency("ImmutableMap").addEntryDependency(IMPLEMENTATION);
+
+	public static final FunctionDependency HASH_MAP = MODULE.createDependency("HashMap").addEntryDependency(IMPLEMENTATION);
+	public static final FunctionDependency LINKED_MAP = MODULE.createDependency("LinkedHashMap").addEntryDependency(HASH_MAP).addEntryDependency(ORDERED_MAP);
+	
+	public static final FunctionDependency CUSTOM_MAP = MODULE.createDependency("CustomHashMap").addEntryDependency(IMPLEMENTATION).addKeyDependency(CollectionModule.STRATEGY);
+	public static final FunctionDependency LINKED_CUSTOM_MAP = MODULE.createDependency("LinkedCustomHashMap").addEntryDependency(CUSTOM_MAP).addEntryDependency(ORDERED_MAP);
+
+	public static final FunctionDependency ENUM_MAP = MODULE.createDependency("EnumMap").addEntryDependency(IMPLEMENTATION);
+	public static final FunctionDependency LINKED_ENUM_MAP = MODULE.createDependency("LinkedEnumMap").addEntryDependency(ENUM_MAP).addEntryDependency(ORDERED_MAP);
+	
+	public static final FunctionDependency REF_MAP = MODULE.createDependency("ReferenceHashMap").addEntryDependency(IMPLEMENTATION);
+	public static final FunctionDependency LINKED_REF_MAP = MODULE.createDependency("LinkedReferenceMap").addEntryDependency(REF_MAP).addEntryDependency(ORDERED_MAP);
+
+	
+	public static final FunctionDependency CONCURRENT_MAP = MODULE.createDependency("ConcurrentMap").addEntryDependency(IMPLEMENTATION);
+	public static final FunctionDependency AVL_TREE_MAP = MODULE.createDependency("AVLTreeMap").addEntryDependency(SORTED_MAP).addEntryDependency(IMPLEMENTATION);
+	public static final FunctionDependency RB_TREE_MAP = MODULE.createDependency("RBTreeMap").addEntryDependency(SORTED_MAP).addEntryDependency(IMPLEMENTATION);
+	
+	@Override
+	public String getModuleName() { return "Map"; }
+	@Override
+	public boolean isBiModule() { return true; }
+	@Override
+	protected void loadVariables() {}
+	@Override
+	public boolean isModuleValid(ClassType keyType, ClassType valueType) { return keyType != ClassType.BOOLEAN; }
+	@Override
+	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) {
+		List<IDependency> dependencies = new ArrayList<>(Arrays.asList(MODULE, ORDERED_MAP, SORTED_MAP, IMPLEMENTATION, WRAPPERS, ARRAY_MAP, IMMUTABLE_MAP, HASH_MAP, LINKED_MAP, CUSTOM_MAP, LINKED_CUSTOM_MAP, CONCURRENT_MAP, AVL_TREE_MAP, RB_TREE_MAP));
+		if(keyType == ClassType.OBJECT) dependencies.addAll(Arrays.asList(ENUM_MAP, LINKED_ENUM_MAP, REF_MAP, LINKED_REF_MAP));
+		return dependencies;
+	}
+	
+	@Override
+	protected void loadFlags()
+	{
+		if(MODULE.isEnabled()) addFlag("MAP_MODULE");
+		if(WRAPPERS.isEnabled()) addFlag("MAPS_FEATURE");
+		if(ORDERED_MAP.isEnabled()) addFlag("ORDERED_MAP_FEATURE");
+		if(ARRAY_MAP.isEnabled()) addFlag("ARRAY_MAP_FEATURE");
+		if(LINKED_MAP.isEnabled()) addFlag("LINKED_MAP_FEATURE");
+		if(LINKED_CUSTOM_MAP.isEnabled()) addFlag("LINKED_CUSTOM_MAP_FEATURE");
+		if(LINKED_ENUM_MAP.isEnabled()) addFlag("LINKED_ENUM_MAP_FEATURE");
+		
+		if(SORTED_MAP.isEnabled()) addFlag("SORTED_MAP_FEATURE");
+		if(AVL_TREE_MAP.isEnabled()) addFlag("AVL_TREE_MAP_FEATURE");
+		if(RB_TREE_MAP.isEnabled()) addFlag("RB_TREE_MAP_FEATURE");
+		
+		if(REF_MAP.isEnabled()) addFlag("REF_MAP_FEATURE");
+		if(LINKED_REF_MAP.isEnabled()) addFlag("LINKED_REF_MAP_FEATURE");
+		
+		
+		if(CONCURRENT_MAP.isEnabled()) addFlag("CONCURRENT_MAP_FEATURE");
+		if(IMMUTABLE_MAP.isEnabled()) addFlag("IMMUTABLE_MAP_FEATURE");
+		if(HASH_MAP.isEnabled()) addFlag("MAP_FEATURE");
+		if(CUSTOM_MAP.isEnabled()) addFlag("CUSTOM_MAP_FEATURE");
+		if(ENUM_MAP.isEnabled()) addFlag("ENUM_MAP_FEATURE");
+	}
+	
+	@Override
+	protected void loadBlockades()
+	{
+		if(!MODULE.isEnabled()) addBlockedFiles("Map", "AbstractMap");
+		if(!WRAPPERS.isEnabled()) addBlockedFiles("Maps");
+		if(!IMMUTABLE_MAP.isEnabled()) addBlockedFiles("ImmutableOpenHashMap");
+		if(!CONCURRENT_MAP.isEnabled()) addBlockedFiles("ConcurrentMap", "ConcurrentOpenHashMap");
+		if(!ORDERED_MAP.isEnabled()) addBlockedFiles("OrderedMap");
+		if(!REF_MAP.isEnabled()) addBlockedFiles("ReferenceHashMap");
+		if(!LINKED_REF_MAP.isEnabled()) addBlockedFiles("LinkedReferenceHashMap");
+		if(!HASH_MAP.isEnabled()) addBlockedFiles("OpenHashMap");
+		if(!LINKED_MAP.isEnabled()) addBlockedFiles("LinkedOpenHashMap");
+		if(!CUSTOM_MAP.isEnabled()) addBlockedFiles("OpenCustomHashMap");
+		if(!LINKED_CUSTOM_MAP.isEnabled()) addBlockedFiles("LinkedOpenCustomHashMap");
+		if(!ENUM_MAP.isEnabled()) addBlockedFiles("EnumMap");
+		if(!LINKED_ENUM_MAP.isEnabled()) addBlockedFiles("LinkedEnumMap");
+		if(!ARRAY_MAP.isEnabled()) addBlockedFiles("ArrayMap");
+		if(!SORTED_MAP.isEnabled()) addBlockedFiles("SortedMap", "NavigableMap");
+		if(!AVL_TREE_MAP.isEnabled()) addBlockedFiles("AVLTreeMap");
+		if(!RB_TREE_MAP.isEnabled()) addBlockedFiles("RBTreeMap");
+		
+		if(keyType == ClassType.BOOLEAN)
+		{
+			//Main Classes
+			addBlockedFiles("SortedMap", "NavigableMap", "RBTreeMap", "AVLTreeMap");
+			addBlockedFiles("OrderedMap", "ArrayMap", "LinkedOpenHashMap", "LinkedOpenCustomHashMap");
+			addBlockedFiles("ConcurrentMap", "ConcurrentOpenHashMap");
+			addBlockedFiles("Map", "Maps", "AbstractMap", "ImmutableOpenHashMap", "OpenHashMap", "OpenCustomHashMap");
+			
+			//Test Classes
+			addBlockedFiles("TestMap", "MapTests", "MapTestSuiteBuilder", "MapConstructorTests", "TestMapGenerator", "SimpleMapTestGenerator", "DerivedMapGenerators", "AbstractMapTester");
+			addBlockedFiles("TestSortedMapGenerator", "OrderedMapTestSuiteBuilder", "NavigableMapTestSuiteBuilder", "SortedMapTestSuiteBuilder");
+			addBlockedFiles("TestOrderedMapGenerator");
+			addBlockedFilter(T -> T.endsWith("Tester") && (T.startsWith("Map") || T.startsWith("OrderedMap") || T.startsWith("SortedMap") || T.startsWith("NavigableMap")));
+		}
+		if(valueType == ClassType.OBJECT) {
+			addBlockedFiles("MapComputeIfAbsentNonDefaultTester", "MapComputeIfPresentNonDefaultTester", "MapComputeNonDefaultTester", "MapSupplyIfAbsentNonDefaultTester");
+		}
+	}
+	
+	@Override
+	protected void loadRemappers()
+	{
+		//Main Classes
+		addBiRequirement("Map");
+		addBiRequirement("SortedMap");
+		addBiRequirement("OrderedMap");
+		addBiRequirement("NavigableMap");
+		addBiRequirement("ConcurrentMap");
+		addBiRequirement("AbstractMap");
+		addEnumRequirement("EnumMap");
+		addEnumRequirement("LinkedEnumMap");
+		addEnumRequirement("ReferenceHashMap");
+		addEnumRequirement("LinkedReferenceHashMap");
+		addBiRequirement("ConcurrentOpenHashMap");
+		addBiRequirement("ImmutableOpenHashMap");
+		addBiRequirement("OpenHashMap");
+		addBiRequirement("LinkedOpenHashMap");
+		addBiRequirement("OpenCustomHashMap");
+		addBiRequirement("LinkedOpenCustomHashMap");
+		addBiRequirement("ArrayMap");
+		addBiRequirement("RBTreeMap");
+		addBiRequirement("AVLTreeMap");
+		addBiRequirement("Maps");
+		
+		addRemapper("AbstractMap", "Abstract%sMap");
+		addRemapper("EnumMap", "Enum2%sMap");
+		addRemapper("LinkedEnumMap", "LinkedEnum2%sMap");
+		addRemapper("ReferenceHashMap", "Reference2%sHashMap");
+		addRemapper("LinkedReferenceHashMap", "Reference2%sLinkedHashMap");
+		addRemapper("ImmutableOpenHashMap", "Immutable%sOpenHashMap");
+		
+		//Test Classes
+		addBiRequirement("TestMapGenerator");
+		addBiRequirement("TestSortedMapGenerator");
+		addBiRequirement("TestOrderedMapGenerator");
+		addBiRequirement("SimpleMapTestGenerator");
+		addBiRequirement("DerivedMapGenerators");
+		addBiRequirement("AbstractMapTester");
+		addBiRequirement("MapTestSuiteBuilder");
+		addBiRequirement("SortedMapTestSuiteBuilder");
+		addBiRequirement("NavigableMapTestSuiteBuilder");
+		addBiRequirement("OrderedMapTestSuiteBuilder");
+		addBiRequirement("MapTests");
+		addBiRequirement("MapConstructorTests");
+		addBiRequirement("TestMap");
+		addBiRequirement("MapAddToTester");
+		addBiRequirement("MapSubFromTester");
+		addBiRequirement("MapClearTester");
+		addBiRequirement("MapComputeIfAbsentTester");
+		addBiRequirement("MapComputeIfPresentTester");
+		addBiRequirement("MapComputeTester");
+		addBiRequirement("MapComputeIfAbsentNonDefaultTester");
+		addBiRequirement("MapComputeIfPresentNonDefaultTester");
+		addBiRequirement("MapComputeNonDefaultTester");
+		addBiRequirement("MapCopyTester");
+		addBiRequirement("MapContainsTester");
+		addBiRequirement("MapContainsKeyTester");
+		addBiRequirement("MapContainsValueTester");
+		addBiRequirement("MapCreatorTester");
+		addBiRequirement("MapEntrySetTester");
+		addBiRequirement("MapEqualsTester");
+		addBiRequirement("MapForEachTester");
+		addBiRequirement("MapGetOrDefaultTester");
+		addBiRequirement("MapGetTester");
+		addBiRequirement("MapHashCodeTester");
+		addBiRequirement("MapIsEmptyTester");
+		addBiRequirement("MapMergeTester");
+		addBiRequirement("MapMergeBulkTester");
+		addBiRequirement("MapPutAllArrayTester");
+		addBiRequirement("MapPutAllTester");
+		addBiRequirement("MapPutIfAbsentTester");
+		addBiRequirement("MapPutTester");
+		addBiRequirement("MapRemoveEntryTester");
+		addBiRequirement("MapRemoveOrDefaultTester");
+		addBiRequirement("MapRemoveTester");
+		addBiRequirement("MapReplaceAllTester");
+		addBiRequirement("MapReplaceEntryTester");
+		addBiRequirement("MapReplaceTester");
+		addBiRequirement("MapSizeTester");
+		addBiRequirement("MapSupplyIfAbsentTester");
+		addBiRequirement("MapSupplyIfAbsentNonDefaultTester");
+		addBiRequirement("MapToStringTester");
+		addBiRequirement("NavigableMapNavigationTester");
+		addBiRequirement("SortedMapNavigationTester");
+		addBiRequirement("OrderedMapNavigationTester");
+		addBiRequirement("OrderedMapMoveTester");
+		addBiRequirement("OrderedMapPutTester");
+		addBiRequirement("MapConstructorTester");
+		
+		addRemapper("TestMapGenerator", "Test%sMapGenerator");
+		addRemapper("TestSortedMapGenerator", "Test%sSortedMapGenerator");
+		addRemapper("TestOrderedMapGenerator", "Test%sOrderedMapGenerator");
+		addRemapper("SimpleMapTestGenerator", "Simple%sMapTestGenerator");
+		addRemapper("DerivedMapGenerators", "Derived%sMapGenerators");
+		addRemapper("AbstractMapTester", "Abstract%sMapTester");
+		addRemapper("TestMap", "Test%sMap");
+	}
+	
+	@Override
+	protected void loadFunctions()
+	{
+		addFunctionValueMapper("BULK_MERGE", "mergeAll");
+		addFunctionValueMappers("COMPUTE_IF_ABSENT", "compute%sIfAbsent");
+		addFunctionValueMappers("COMPUTE_IF_PRESENT", "compute%sIfPresent");
+		addFunctionValueMapper("COMPUTE", "compute");
+		addFunctionMapper("DEQUEUE_LAST", "dequeueLast");
+		addFunctionMapper("DEQUEUE", "dequeue");
+		addSimpleMapper("ENTRY_SET", keyType.getFileType().toLowerCase()+"2"+valueType.getFileType()+"EntrySet");
+		addFunctionMappers("FIRST_ENTRY_KEY", "first%sKey");
+		addFunctionValueMappers("FIRST_ENTRY_VALUE", "first%sValue");
+		if(keyType.isObject()) addFunctionValueMapper("GET_VALUE", valueType.isObject() ? "getObject" : "get");
+		else addSimpleMapper("GET_VALUE", "get");
+		addFunctionMappers("LAST_ENTRY_KEY", "last%sKey");
+		addFunctionValueMappers("LAST_ENTRY_VALUE", "last%sValue");
+		addFunctionValueMapper("MERGE", "merge");
+		addFunctionMappers("POLL_FIRST_ENTRY_KEY", "pollFirst%sKey");
+		addFunctionMappers("POLL_LAST_ENTRY_KEY", "pollLast%sKey");
+		if(keyType.isObject()) addFunctionMapper("REMOVE_VALUE", "rem");
+		else addSimpleMapper("REMOVE_VALUE", "remove");
+		addFunctionMapper("REMOVE", "remove");
+		addFunctionValueMappers("REPLACE_VALUES", valueType.isObject() ? "replaceObjects" : "replace%ss");
+		addFunctionValueMappers("SUPPLY_IF_ABSENT", "supply%sIfAbsent");
+	}
+	
+	@Override
+	protected void loadClasses()
+	{
+		//Implementation Classes
+		addAbstractBiMapper("IMMUTABLE_HASH_MAP", "Immutable%sOpenHashMap", "2");
+		addBiClassMapper("LINKED_CUSTOM_HASH_MAP", "LinkedOpenCustomHashMap", "2");
+		addBiClassMapper("LINKED_HASH_MAP", "LinkedOpenHashMap", "2");
+		addBiClassMapper("CUSTOM_HASH_MAP", "OpenCustomHashMap", "2");
+		addBiClassMapper("CONCURRENT_HASH_MAP", "ConcurrentOpenHashMap", "2");
+		addBiClassMapper("AVL_TREE_MAP", "AVLTreeMap", "2");
+		addBiClassMapper("RB_TREE_MAP", "RBTreeMap", "2");
+		addFunctionValueMappers("LINKED_ENUM_MAP", valueType.isObject() ? "LinkedEnum2ObjectMap" : "LinkedEnum2%sMap");
+		addFunctionValueMappers("ENUM_MAP", valueType.isObject() ? "Enum2ObjectMap" : "Enum2%sMap");
+		addFunctionValueMappers("REF_MAP", valueType.isObject() ? "Reference2ObjectHashMap" : "Reference2%sHashMap");
+		addFunctionValueMappers("LINKED_REF_MAP", valueType.isObject() ? "Reference2ObjectLinkedHashMap" : "Reference2%sLinkedHashMap");
+		addBiClassMapper("HASH_MAP", "OpenHashMap", "2");
+		addBiClassMapper("ARRAY_MAP", "ArrayMap", "2");
+		
+		//Abstract Classes
+		addAbstractBiMapper("ABSTRACT_MAP", "Abstract%sMap", "2");
+		addAbstractBiMapper("REVERSED_ORDERED_MAP", "Reversed%sOrderedMap", "2");
+		
+		//Helper Classes
+		addBiClassMapper("MAPS", "Maps", "2");
+		
+		//Interfaces
+		addBiClassMapper("NAVIGABLE_MAP", "NavigableMap", "2");
+		addBiClassMapper("ORDERED_MAP", "OrderedMap", "2");
+		addBiClassMapper("SORTED_MAP", "SortedMap", "2");
+		addBiClassMapper("CONCURRENT_MAP", "ConcurrentMap", "2");
+		addBiClassMapper("MAP", "Map", "2");
+	}
+	
+	@Override
+	protected void loadTestClasses()
+	{
+		//Implementation Classes
+		addAbstractBiMapper("SIMPLE_TEST_MAP", "Test%sMap", "2");
+		addBiClassMapper("MAP_TESTS", "MapTests", "2");
+		addAbstractBiMapper("NAVIGABLE_MAP_TEST_BUILDER", "%sNavigableMapTestSuiteBuilder", "2");
+		addAbstractBiMapper("SORTED_MAP_TEST_BUILDER", "%sSortedMapTestSuiteBuilder", "2");
+		addAbstractBiMapper("ORDERED_MAP_TEST_BUILDER", "%sOrderedMapTestSuiteBuilder", "2");
+		addAbstractBiMapper("MAP_TEST_BUILDER", "%sMapTestSuiteBuilder", "2");
+		
+		//Abstract Classes
+		addAbstractBiMapper("ABSTRACT_MAP_TESTER", "Abstract%sMapTester", "2");
+		
+		//Helper Classes
+		addAbstractBiMapper("MAP_CONSTRUCTOR_TESTS", "%sMapConstructorTests", "2");
+		addAbstractBiMapper("SIMPLE_MAP_TEST_GENERATOR", "Simple%sMapTestGenerator", "2");
+		addAbstractBiMapper("DERIVED_MAP_GENERATORS", "Derived%sMapGenerators", "2");
+		addAbstractBiMapper("TEST_ORDERED_MAP_GENERATOR", "Test%sOrderedMapGenerator", "2");
+		addAbstractBiMapper("TEST_SORTED_MAP_GENERATOR", "Test%sSortedMapGenerator", "2");
+		addAbstractBiMapper("TEST_MAP_GENERATOR", "Test%sMapGenerator", "2");
+	}
+}

src/builder/java/speiger/src/builder/modules/PairModule.java

@@ -0,0 +1,71 @@
+package speiger.src.builder.modules;
+
+import java.util.Arrays;
+import java.util.List;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.FunctionDependency;
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.dependencies.ModuleDependency;
+
+@SuppressWarnings("javadoc")
+public class PairModule extends BaseModule
+{
+	public static final BaseModule INSTANCE = new PairModule();
+	public static final ModuleDependency MODULE = new ModuleDependency(INSTANCE, true).addKeyDependency(JavaModule.MODULE);
+	public static final FunctionDependency IMMUTABLE = MODULE.createDependency("Immutable");
+	public static final FunctionDependency MUTABLE = MODULE.createDependency("Mutable");
+
+	
+//	public static final DependencyModule MODULE = new BiTypeModule(INSTANCE);
+//	public static final DependencyFunction IMMUTABLE = MODULE.createFunction("Immutable");
+//	public static final DependencyFunction MUTABLE = MODULE.createFunction("Mutable");
+	
+	@Override
+	public String getModuleName() { return "Pair"; }
+	@Override
+	public boolean isBiModule() { return true; }
+	@Override
+	protected void loadVariables() {}
+	@Override
+	protected void loadFunctions() {}
+	@Override
+	protected void loadTestClasses() {}
+	@Override
+	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) { return Arrays.asList(MODULE, IMMUTABLE, MUTABLE); }
+	
+	@Override
+	protected void loadFlags() {
+		if(MODULE.isEnabled()) addFlag("PAIR_MODULE");
+		if(MUTABLE.isEnabled()) addFlag("MUTABLE_PAIR");
+		if(IMMUTABLE.isEnabled()) addFlag("IMMUTABLE_PAIR");
+	}
+	
+	@Override
+	protected void loadBlockades() {
+		if(!MODULE.isEnabled()) addBlockedFiles("Pair");
+		if(!MUTABLE.isEnabled()) addBlockedFiles("MutablePair");
+		if(!IMMUTABLE.isEnabled()) addBlockedFiles("ImmutablePair");
+	}
+	
+	@Override
+	protected void loadRemappers() {
+		//Main Classes
+		addBiRequirement("Pair", "");
+		addBiRequirement("MutablePair", "");
+		addBiRequirement("ImmutablePair", "");
+		
+		//Test Classes
+		addBiRequirement("PairTester", "");
+	}
+	
+	@Override
+	protected void loadClasses() {
+		//Implementations
+		addBiClassMapper("IMMUTABLE_PAIR", "ImmutablePair", "");
+		addBiClassMapper("MUTABLE_PAIR", "MutablePair", "");
+		
+		//Interfaces
+		addBiClassMapper("PAIR", "Pair", "");
+	}
+}

src/builder/java/speiger/src/builder/modules/PrioQueueModule.java

@@ -0,0 +1,102 @@
+package speiger.src.builder.modules;
+
+import java.util.Arrays;
+import java.util.List;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.FunctionDependency;
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.dependencies.ModuleDependency;
+
+@SuppressWarnings("javadoc")
+public class PrioQueueModule extends BaseModule
+{
+	public static final BaseModule INSTANCE = new PrioQueueModule();
+	public static final ModuleDependency MODULE = new ModuleDependency(INSTANCE, false).addKeyDependency(CollectionModule.MODULE);
+	public static final FunctionDependency IMPLEMENTATION = MODULE.createDependency("Implementations");
+	public static final FunctionDependency WRAPPERS = MODULE.createDependency("Wrappers");
+	public static final FunctionDependency DEQUEUE = MODULE.createDependency("Dequeue");
+	
+	public static final FunctionDependency FIFO_QUEUE = MODULE.createDependency("FiFoQueue").addKeyDependency(DEQUEUE).addKeyDependency(IMPLEMENTATION);
+	public static final FunctionDependency HEAP_QUEUE = MODULE.createDependency("HeapQueue").addKeyDependency(IMPLEMENTATION);
+	public static final FunctionDependency ARRAY_PRIO_QUEUE = MODULE.createDependency("ArrayPrioQueue").addKeyDependency(IMPLEMENTATION);
+	
+	
+	@Override
+	public String getModuleName() { return "PriorityQueue"; }
+	@Override
+	protected void loadVariables() {}
+	@Override
+	protected void loadFunctions() {}
+	@Override
+	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) { return Arrays.asList(MODULE, WRAPPERS, IMPLEMENTATION, DEQUEUE, FIFO_QUEUE, HEAP_QUEUE, ARRAY_PRIO_QUEUE); }
+	
+	@Override
+	protected void loadFlags() {
+		if(MODULE.isEnabled()) addFlag("QUEUE_MODULE");
+		if(WRAPPERS.isEnabled()) addKeyFlag("QUEUES_FEATURE");
+		if(DEQUEUE.isEnabled()) addKeyFlag("DEQUEUE_FEATURE");
+		if(FIFO_QUEUE.isEnabled()) addKeyFlag("FIFO_QUEUE_FEATURE");
+		if(HEAP_QUEUE.isEnabled()) addKeyFlag("HEAP_QUEUE_FEATURE");
+		if(ARRAY_PRIO_QUEUE.isEnabled()) addKeyFlag("ARRAY_QUEUE_FEATURE");
+	}
+	
+	@Override
+	protected void loadBlockades() {
+		if(!MODULE.isEnabled()) addBlockedFiles("PriorityQueue", "AbstractPriorityQueue");
+		if(!WRAPPERS.isEnabled()) addBlockedFiles("PriorityQueues");
+		if(!DEQUEUE.isEnabled()) addBlockedFiles("PriorityDequeue");
+		if(!FIFO_QUEUE.isEnabled()) addBlockedFiles("ArrayFIFOQueue");
+		if(!HEAP_QUEUE.isEnabled()) addBlockedFiles("HeapPriorityQueue");
+		if(!ARRAY_PRIO_QUEUE.isEnabled()) addBlockedFiles("ArrayPriorityQueue");
+		
+		if(keyType == ClassType.BOOLEAN) {
+			addBlockedFiles("QueueTests");
+		}
+	}
+	
+	@Override
+	protected void loadRemappers() {
+		//Main Classes
+		addRemapper("AbstractPriorityQueue", "Abstract%sPriorityQueue");
+		
+		//Test Classes
+		addRemapper("TestQueueGenerator", "Test%sQueueGenerator");
+		addRemapper("AbstractQueueTester", "Abstract%sQueueTester");
+		addRemapper("SimpleQueueTestGenerator", "Simple%sQueueTestGenerator");
+	}
+	
+	@Override
+	protected void loadClasses() {
+		//Implementation Classes
+		addClassMapper("ARRAY_FIFO_QUEUE", "ArrayFIFOQueue");
+		addClassMapper("ARRAY_PRIORITY_QUEUE", "ArrayPriorityQueue");
+		addClassMapper("HEAP_PRIORITY_QUEUE", "HeapPriorityQueue");
+		
+		//Abstract Classes
+		addAbstractMapper("ABSTRACT_PRIORITY_QUEUE", "Abstract%sPriorityQueue");
+		
+		//Helper Classes
+		addClassMapper("PRIORITY_QUEUES", "PriorityQueues");
+		
+		//Interfaces
+		addClassMapper("PRIORITY_QUEUE", "PriorityQueue");
+		addClassMapper("PRIORITY_DEQUEUE", "PriorityDequeue");	
+	}
+	
+	@Override
+	protected void loadTestClasses() 
+	{
+		//Implementation Classes
+		addClassMapper("DEQUEUE_TEST_BUILDER", "DequeueTestSuiteBuilder");
+		addClassMapper("QUEUE_TEST_BUILDER", "QueueTestSuiteBuilder");
+		addClassMapper("QUEUE_TESTS", "QueueTests");
+		
+		//Abstract Classes
+		addAbstractMapper("ABSTRACT_QUEUE_TESTER", "Abstract%sQueueTester");
+		
+		//Helper Classes
+		addAbstractMapper("SIMPLE_QUEUE_TEST_GENERATOR", "Simple%sQueueTestGenerator");
+		addAbstractMapper("TEST_QUEUE_GENERATOR", "Test%sQueueGenerator");
+	}
+}

src/builder/java/speiger/src/builder/modules/SetModule.java

@@ -0,0 +1,162 @@
+package speiger.src.builder.modules;
+
+import java.util.Arrays;
+import java.util.List;
+
+import speiger.src.builder.ClassType;
+import speiger.src.builder.dependencies.FunctionDependency;
+import speiger.src.builder.dependencies.IDependency;
+import speiger.src.builder.dependencies.ModuleDependency;
+
+@SuppressWarnings("javadoc")
+public class SetModule extends BaseModule
+{
+	public static final BaseModule INSTANCE = new SetModule();
+	public static final ModuleDependency MODULE = new ModuleDependency(INSTANCE, false).addKeyDependency(CollectionModule.MODULE).addKeyDependency(CollectionModule.SPLIT_ITERATORS);
+	public static final FunctionDependency IMPLEMENTATION = MODULE.createDependency("Implementations");
+	public static final FunctionDependency WRAPPERS = MODULE.createDependency("Wrappers");
+	public static final FunctionDependency ORDERED_SET = MODULE.createDependency("OrderedSet");
+	public static final FunctionDependency SORTED_SET = MODULE.createDependency("SortedSet");
+	public static final FunctionDependency ARRAY_SET = MODULE.createDependency("ArraySet").addKeyDependency(ORDERED_SET).addKeyDependency(IMPLEMENTATION);
+	public static final FunctionDependency IMMUTABLE_SET = MODULE.createDependency("ImmutableSet").addKeyDependency(ORDERED_SET).addKeyDependency(IMPLEMENTATION);
+	public static final FunctionDependency HASH_SET = MODULE.createDependency("HashSet").addKeyDependency(IMPLEMENTATION);
+	public static final FunctionDependency LINKED_SET = MODULE.createDependency("LinkedHashSet").addKeyDependency(ORDERED_SET).addKeyDependency(HASH_SET);
+	public static final FunctionDependency CUSTOM_SET = MODULE.createDependency("CustomHashSet").addKeyDependency(IMPLEMENTATION).addKeyDependency(CollectionModule.STRATEGY);
+	public static final FunctionDependency LINKED_CUSTOM_SET = MODULE.createDependency("LinkedCustomHashSet").addKeyDependency(ORDERED_SET).addKeyDependency(CUSTOM_SET);
+	public static final FunctionDependency AVL_TREE_SET = MODULE.createDependency("AVLTreeSet").addKeyDependency(SORTED_SET).addKeyDependency(IMPLEMENTATION);
+	public static final FunctionDependency RB_TREE_SET = MODULE.createDependency("RBTreeSet").addKeyDependency(SORTED_SET).addKeyDependency(IMPLEMENTATION);
+	
+	@Override
+	public String getModuleName() { return "Set"; }
+	@Override
+	protected void loadVariables() {}
+	
+	@Override
+	public boolean isModuleValid(ClassType keyType, ClassType valueType) { return keyType != ClassType.BOOLEAN; }
+	@Override
+	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) { return Arrays.asList(MODULE, WRAPPERS, ORDERED_SET, SORTED_SET, IMPLEMENTATION, ARRAY_SET, IMMUTABLE_SET, HASH_SET, LINKED_SET, CUSTOM_SET, LINKED_CUSTOM_SET, AVL_TREE_SET, RB_TREE_SET); }
+	
+	@Override
+	protected void loadFlags()
+	{
+		if(MODULE.isEnabled()) addFlag("SET_MODULE");
+		if(WRAPPERS.isEnabled()) addFlag("SETS_FEATURE");
+		if(ORDERED_SET.isEnabled()) addFlag("ORDERED_SET_FEATURE");
+		if(SORTED_SET.isEnabled()) addFlag("SORTED_SET_FEATURE");
+		if(IMMUTABLE_SET.isEnabled()) addFlag("IMMUTABLE_SET_FEATURE");
+		if(ARRAY_SET.isEnabled()) addFlag("ARRAY_SET_FEATURE");
+		if(HASH_SET.isEnabled()) addFlag("HASH_SET_FEATURE");
+		if(LINKED_SET.isEnabled()) addFlag("LINKED_SET_FEATURE");
+		if(CUSTOM_SET.isEnabled()) addFlag("CUSTOM_HASH_SET_FEATURE");
+		if(LINKED_CUSTOM_SET.isEnabled()) addFlag("LINKED_CUSTOM_SET_FEATURE");
+		if(AVL_TREE_SET.isEnabled()) addFlag("AVL_TREE_SET_FEATURE");
+		if(RB_TREE_SET.isEnabled()) addFlag("RB_TREE_SET_FEATURE");
+	}
+	
+	@Override
+	protected void loadBlockades()
+	{
+		if(!MODULE.isEnabled()) addBlockedFiles("Set", "AbstractSet");
+		if(!WRAPPERS.isEnabled()) addBlockedFiles("Sets");
+		if(!IMMUTABLE_SET.isEnabled()) addBlockedFiles("ImmutableOpenHashSet");
+		if(!ORDERED_SET.isEnabled()) addBlockedFiles("OrderedSet");
+		if(!HASH_SET.isEnabled()) addBlockedFiles("OpenHashSet");
+		if(!LINKED_SET.isEnabled()) addBlockedFiles("LinkedOpenHashSet");
+		if(!CUSTOM_SET.isEnabled()) addBlockedFiles("OpenCustomHashSet");
+		if(!LINKED_CUSTOM_SET.isEnabled()) addBlockedFiles("LinkedOpenCustomHashSet");
+		if(!ARRAY_SET.isEnabled()) addBlockedFiles("ArraySet");
+		if(!SORTED_SET.isEnabled()) addBlockedFiles("SortedSet", "NavigableSet");
+		if(!AVL_TREE_SET.isEnabled()) addBlockedFiles("AVLTreeSet");
+		if(!RB_TREE_SET.isEnabled()) addBlockedFiles("RBTreeSet");
+		
+		if(keyType == ClassType.BOOLEAN)
+		{
+			//Main Classes
+			addBlockedFiles("SortedSet", "NavigableSet", "AVLTreeSet", "RBTreeSet");
+			addBlockedFiles("OrderedSet", "ArraySet", "LinkedOpenHashSet", "LinkedOpenCustomHashSet");
+			addBlockedFiles("Set", "Sets", "AbstractSet", "OpenHashSet", "OpenCustomHashSet", "ImmutableOpenHashSet");
+			
+			//Test Classes
+			addBlockedFiles("SetTests", "SetTestSuiteBuilder", "TestSetGenerator");
+			addBlockedFiles("OrderedSetTestSuiteBuilder", "TestOrderedSetGenerator", "OrderedSetMoveTester", "OrderedSetNavigationTester", "OrderedSetIterationTester");
+			addBlockedFiles("SortedSetTestSuiteBuilder", "TestSortedSetGenerator", "SortedSetNaviationTester", "SortedSetSubsetTestSetGenerator", "SortedSetIterationTester", "SortedSetNaviationTester");
+			addBlockedFiles("NavigableSetTestSuiteBuilder", "TestNavigableSetGenerator", "NavigableSetNavigationTester");
+			addBlockedFiles("MinimalSet", "AbstractSetTester", "SetAddAllTester", "SetAddTester", "SetCreationTester", "SetEqualsTester", "SetRemoveTester");
+		}
+	}
+	
+	@Override
+	protected void loadRemappers()
+	{
+		//Main Classes
+		addRemapper("AbstractSet", "Abstract%sSet");
+		addRemapper("ImmutableOpenHashSet", "Immutable%sOpenHashSet");
+		
+		//Test Classes
+		addRemapper("MinimalSet", "Minimal%sSet");
+		addRemapper("TestNavigableSetGenerator", "Test%sNavigableSetGenerator");
+		addRemapper("TestSortedSetGenerator", "Test%sSortedSetGenerator");
+		addRemapper("TestOrderedSetGenerator", "Test%sOrderedSetGenerator");
+		addRemapper("TestSetGenerator", "Test%sSetGenerator");
+		addRemapper("AbstractSetTester", "Abstract%sSetTester");
+	}
+	
+	@Override
+	protected void loadFunctions()
+	{
+		addFunctionMapper("POLL_FIRST_KEY", "pollFirst");
+		addFunctionMapper("POLL_LAST_KEY", "pollLast");
+		addFunctionMapper("FIRST_KEY", "first");
+		addFunctionMapper("LAST_KEY", "last");	
+	}
+	
+	@Override
+	protected void loadTestClasses()
+	{
+		//Implementation Classes
+		addAbstractMapper("MINIMAL_SET", "Minimal%sSet");
+		addClassMapper("ORDERED_SET_TEST_BUILDER", "OrderedSetTestSuiteBuilder");
+		addClassMapper("SORTED_SET_TEST_BUILDER", "SortedSetTestSuiteBuilder");
+		addClassMapper("NAVIGABLE_SET_TEST_BUILDER", "NavigableSetTestSuiteBuilder");
+		addClassMapper("SET_TEST_BUILDER", "SetTestSuiteBuilder");
+		addClassMapper("SET_TESTS", "SetTests");
+
+		//Abstract Classes
+		addAbstractMapper("ABSTRACT_SET_TESTER", "Abstract%sSetTester");
+		
+		//Helper Classes
+		addClassMapper("SUB_SORTED_SET_CLASS_GENERATOR", "SortedSetSubsetTestSetGenerator");
+		addClassMapper("SUB_NAVIGABLE_SET_CLASS_GENERATOR", "NavigableSetSubsetTestSetGenerator");
+		addAbstractMapper("TEST_NAVIGABLE_SET_GENERATOR", "Test%sNavigableSetGenerator");
+		addAbstractMapper("TEST_SORTED_SET_GENERATOR", "Test%sSortedSetGenerator");
+		addAbstractMapper("TEST_ORDERED_SET_GENERATOR", "Test%sOrderedSetGenerator");
+		addAbstractMapper("TEST_SET_GENERATOR", "Test%sSetGenerator");
+	}
+	
+	@Override
+	protected void loadClasses()
+	{
+		//Implementation Classes
+		addClassMapper("LINKED_CUSTOM_HASH_SET", "LinkedOpenCustomHashSet");
+		addClassMapper("LINKED_HASH_SET", "LinkedOpenHashSet");
+		addAbstractMapper("IMMUTABLE_HASH_SET", "Immutable%sOpenHashSet");
+		addClassMapper("CUSTOM_HASH_SET", "OpenCustomHashSet");
+		addClassMapper("HASH_SET", "OpenHashSet");
+		addClassMapper("RB_TREE_SET", "RBTreeSet");
+		addClassMapper("AVL_TREE_SET", "AVLTreeSet");
+		addClassMapper("ARRAY_SET", "ArraySet");
+		
+		//Abstract Classes
+		addAbstractMapper("ABSTRACT_SET", "Abstract%sSet");
+		addAbstractMapper("REVERSED_ORDERED_SET", "Reversed%sOrderedSet");
+		
+		//Helper Classes
+		addClassMapper("SETS", "Sets");
+		
+		//Interfaces
+		addClassMapper("NAVIGABLE_SET", "NavigableSet");
+		addClassMapper("SORTED_SET", "SortedSet");
+		addClassMapper("ORDERED_SET", "OrderedSet");
+		addClassMapper("SET", "Set");
+	}
+}

src/builder/resources/speiger/assets/collections/templates/collections/AbstractCollection.template

@@ -1,15 +1,22 @@
 package speiger.src.collections.PACKAGE.collections;
 
 import java.util.Collection;
+#if ORDERED_MAP_FEATURE
+import java.util.function.Supplier;
+#endif
 import java.util.Objects;
 import java.util.AbstractCollection;
 #if TYPE_OBJECT
 import java.util.function.Consumer;
 #endif
 
+#if ORDERED_MAP_FEATURE
+import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
+#endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
+import speiger.src.collections.PACKAGE.utils.ARRAYS;
 #endif
 
 /**
@@ -245,6 +252,7 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 	 */
 	@Override
 	public KEY_TYPE[] TO_ARRAY() {
+		if(isEmpty()) return ARRAYS.EMPTY_ARRAY;
 		return TO_ARRAY(new KEY_TYPE[size()]);
 	}
 	
@@ -260,5 +268,79 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 		if (a.length > size()) a[size()] = EMPTY_KEY_VALUE;
 		return a;
 	}
+
+#endif
+#if ORDERED_MAP_FEATURE
+	public static class REVERSED_ORDERED_COLLECTION KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION KEY_GENERIC_TYPE implements ORDERED_COLLECTION KEY_GENERIC_TYPE {
+		ORDERED_COLLECTION KEY_GENERIC_TYPE collection;
+		Supplier<ITERATOR KEY_GENERIC_TYPE> reverseIterator;
+		
+		public REVERSED_ORDERED_COLLECTION(ORDERED_COLLECTION KEY_GENERIC_TYPE collection, Supplier<ITERATOR KEY_GENERIC_TYPE> reverseIterator) {
+			this.collection = collection;
+			this.reverseIterator = reverseIterator;
+		}
+		
+		@Override
+		public boolean add(KEY_TYPE o) { return collection.add(o); }
+		@Override
+		public ORDERED_COLLECTION KEY_GENERIC_TYPE reversed() { return collection; }
+		@Override
+		public void addFirst(KEY_TYPE e) { collection.addLast(e); }
+		@Override
+		public void addLast(KEY_TYPE e) { collection.addFirst(e); }
+		@Override
+#if !TYPE_OBJECT
+		public boolean contains(KEY_TYPE e) { return collection.contains(e); }
+#else
+		public boolean contains(Object e) { return collection.contains(e); }
+#endif
+		@Override
+#if !TYPE_OBJECT
+		public boolean REMOVE_KEY(KEY_TYPE e) { return collection.REMOVE_KEY(e); }
+#else
+		public boolean remove(Object e) { return collection.remove(e); }
+#endif
+		@Override
+		public void clear() { collection.clear(); }
+		@Override
+		public KEY_TYPE GET_FIRST_KEY() { return collection.GET_LAST_KEY(); }
+		@Override
+		public KEY_TYPE REMOVE_FIRST_KEY() { return collection.REMOVE_LAST_KEY(); }
+		@Override
+		public KEY_TYPE GET_LAST_KEY() { return collection.GET_FIRST_KEY(); }
+		@Override
+		public KEY_TYPE REMOVE_LAST_KEY() { return collection.REMOVE_FIRST_KEY(); }
+		@Override
+		public ITERATOR KEY_GENERIC_TYPE iterator() { return reverseIterator.get(); }
+		@Override
+		public int size() { return collection.size(); }
+	}
+	
+	public static class ReverseBiIterator KEY_GENERIC_TYPE implements LIST_ITERATOR KEY_GENERIC_TYPE {
+		LIST_ITERATOR KEY_GENERIC_TYPE it;
+		
+		public ReverseBiIterator(LIST_ITERATOR KEY_GENERIC_TYPE it) {
+			this.it = it;
+		}
+		
+		@Override
+		public KEY_TYPE NEXT() { return it.PREVIOUS(); }
+		@Override
+		public boolean hasNext() { return it.hasPrevious(); }
+		@Override
+		public boolean hasPrevious() { return it.hasNext(); }
+		@Override
+		public KEY_TYPE PREVIOUS() { return it.NEXT(); }
+		@Override
+		public void remove() { it.remove(); }
+		@Override
+		public int nextIndex() { return it.previousIndex(); }
+		@Override
+		public int previousIndex() { return it.nextIndex(); }
+		@Override
+		public void set(KEY_TYPE e) { it.set(e); }
+		@Override
+		public void add(KEY_TYPE e) { it.add(e); }
+	}
 #endif
 }

src/builder/resources/speiger/assets/collections/templates/collections/BidirectionalIterator.template

@@ -1,19 +1,11 @@
 package speiger.src.collections.PACKAGE.collections;
 
-#if !TYPE_OBJECT
-import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
-/**
- * A Type-Specific {@link ObjectBidirectionalIterator} to reduce (un)boxing
- */
-public interface BI_ITERATOR KEY_GENERIC_TYPE extends ITERATOR KEY_GENERIC_TYPE, ObjectBidirectionalIterator<CLASS_TYPE>
-#else
 /**
  * This is a basically a {@link java.util.ListIterator} without the index functions.
  * Allowing to have a simple Bidirectional Iterator without having to keep track of the Iteration index.
  * @Type(T)
  */
 public interface BI_ITERATOR KEY_GENERIC_TYPE extends ITERATOR KEY_GENERIC_TYPE
-#endif
 {
 	/**
 	 * Returns true if the Iterator has a Previous element
@@ -29,11 +21,11 @@ public interface BI_ITERATOR KEY_GENERIC_TYPE extends ITERATOR KEY_GENERIC_TYPE
 	public KEY_TYPE PREVIOUS();
 	
 #if !TYPE_OBJECT
-	/** {@inheritDoc}
+	/**
 	 * <p>This default implementation delegates to the corresponding type-specific function.
 	 * @deprecated Please use the corresponding type-specific function instead. 
+	 * @return the Previous element of the iterator.+
 	 */
-	@Override
 	@Deprecated
 	public default CLASS_TYPE previous() {
 		return KEY_TO_OBJ(PREVIOUS());
@@ -57,7 +49,7 @@ public interface BI_ITERATOR KEY_GENERIC_TYPE extends ITERATOR KEY_GENERIC_TYPE
 	public default int back(int amount) {
 		if(amount < 0) throw new IllegalStateException("Can't go forward");
 		int i = 0;
-		for(;i<amount && hasPrevious();previous(),i++);
+		for(;i<amount && hasPrevious();PREVIOUS(),i++);
 		return i;
 	}
 }

src/builder/resources/speiger/assets/collections/templates/collections/Collection.template

@@ -5,24 +5,29 @@ import java.util.Collection;
 import java.util.Objects;
 import java.util.function.JAVA_PREDICATE;
 import java.util.function.Predicate;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
 import java.util.stream.JAVA_STREAM;
 import java.util.stream.StreamSupport;
 #endif
+#endif
 #if TYPE_OBJECT
 import java.util.function.Consumer;
-import speiger.src.collections.ints.functions.function.Int2ObjectFunction;
+import java.util.function.IntFunction;
 #else
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
 import speiger.src.collections.PACKAGE.utils.COLLECTIONS;
+import speiger.src.collections.utils.ISizeProvider;
 import speiger.src.collections.utils.SanityChecks;
 
 /**
  * A Type-Specific {@link Collection} that reduces (un)boxing
  * @Type(T)
  */
-public interface COLLECTION KEY_GENERIC_TYPE extends Collection<CLASS_TYPE>, ITERABLE KEY_GENERIC_TYPE
+public interface COLLECTION KEY_GENERIC_TYPE extends Collection<CLASS_TYPE>, ITERABLE KEY_GENERIC_TYPE, ISizeProvider
 {
 #if !TYPE_OBJECT
 	/**
@@ -174,11 +179,12 @@ public interface COLLECTION KEY_GENERIC_TYPE extends Collection<CLASS_TYPE>, ITE
 	/**
 	 * A Helper function that simplifies the process of creating a new Array.
 	 * @param action the array creation function
+	 * @param <E> the returning arrayType
 	 * @return an array containing all of the elements in this collection
 	 * @see Collection#toArray(Object[])
 	 */
-	default KEY_TYPE[] TO_ARRAY(Int2ObjectFunction<KEY_TYPE[]> action) {
-		return TO_ARRAY(action.get(size()));
+	default <E> E[] TO_ARRAY(IntFunction<E[]> action) {
+		return TO_ARRAY(action.apply(size()));
 	}
 	
 #else
@@ -290,6 +296,7 @@ public interface COLLECTION KEY_GENERIC_TYPE extends Collection<CLASS_TYPE>, ITE
 	 */
 	public default COLLECTION KEY_GENERIC_TYPE unmodifiable() { return COLLECTIONS.unmodifiable(this); }
 	
+#if SPLIT_ITERATOR_FEATURE
 #if PRIMITIVES
 	/**
 	 * Returns a Java-Type-Specific Stream to reduce boxing/unboxing.
@@ -302,11 +309,15 @@ public interface COLLECTION KEY_GENERIC_TYPE extends Collection<CLASS_TYPE>, ITE
 	 * @return a Stream of the closest java type
 	 */
 	default JAVA_STREAM parallelPrimitiveStream() { return StreamSupport.NEW_STREAM(SPLIT_ITERATORS.createJavaSplititerator(this, 0), true); }
+	
 #endif
+#if STREAM_FEATURE
 	/**
 	 * A Type Specific Type Splititerator to reduce boxing/unboxing
 	 * @return type specific splititerator
 	 */
 	@Override
 	default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
+#endif
+#endif
 }

src/builder/resources/speiger/assets/collections/templates/collections/Iterable.template

@@ -2,6 +2,13 @@ package speiger.src.collections.PACKAGE.collections;
 
 import java.util.Objects;
 import java.util.function.Consumer;
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
+#if JDK_TYPE 
+import java.util.OPTIONAL;
+#endif
+
 #if !TYPE_OBJECT
 
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
@@ -9,23 +16,74 @@ import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.objects.collections.ObjectIterable;
 #else
 import java.util.function.BiFunction;
+import java.util.function.IntFunction;
 import java.util.Comparator;
 
+#if BOOLEAN_COLLECTION_MODULE
+import speiger.src.collections.booleans.collections.BooleanIterable;
+#endif
+#iterate
+#argument OUTPUT_ITERABLE ByteIterable ShortIterable IntIterable LongIterable FloatIterable DoubleIterable
+#argument MAPPER ToByteFunction ToShortFunction ToIntFunction ToLongFunction ToFloatFunction ToDoubleFunction
+#argument PACKAGE bytes shorts ints longs floats doubles
+#argument FILTER_TYPE BYTE_COLLECTION_MODULE SHORT_COLLECTION_MODULE INT_COLLECTION_MODULE LONG_COLLECTION_MODULE FLOAT_COLLECTION_MODULE DOUBLE_COLLECTION_MODULE
+#if FILTER_TYPE
+import speiger.src.collections.objects.functions.function.MAPPER;
+import speiger.src.collections.PACKAGE.collections.OUTPUT_ITERABLE;
+#endif
+#enditerate
+#endif
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
 #endif
 import speiger.src.collections.PACKAGE.functions.function.TO_OBJECT_FUNCTION;
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
-import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
-import speiger.src.collections.PACKAGE.lists.LIST;
-import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
-#if !TYPE_BOOLEAN
-import speiger.src.collections.PACKAGE.sets.SET;
-import speiger.src.collections.PACKAGE.sets.LINKED_HASH_SET;
 #endif
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+#if ARRAY_LIST_FEATURE || LINKED_LIST_FEATURE
+import speiger.src.collections.PACKAGE.lists.LIST;
+#if ARRAY_LIST_FEATURE
+import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
+#else
+import speiger.src.collections.PACKAGE.lists.LINKED_LIST;
+#endif
+#endif
+#if SET_MODULE && !TYPE_BOOLEAN
+#if LINKED_SET_FEATURE || LINKED_CUSTOM_SET_FEATURE || SET_FEATURE || CUSTOM_SET_FEATURE || RB_TREE_SET_FEATURE || AVL_TREE_SET_FEATURE || ARRAY_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.SET;
+#if LINKED_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.LINKED_HASH_SET;
+#else if LINKED_CUSTOM_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.LINKED_CUSTOM_HASH_SET;
+#else if SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.HASH_SET;
+#else if CUSTOM_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.CUSTOM_HASH_SET;
+#else if RB_TREE_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.RB_TREE_SET;
+#else if AVL_TREE_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.AVL_TREE_SET;
+#else if ARRAY_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.ARRAY_SET;
+#endif
+#endif
+#endif
+import speiger.src.collections.PACKAGE.utils.ARRAYS;
+#if ASYNC_MODULE
 import speiger.src.collections.PACKAGE.utils.ASYNC_BUILDER;
+#endif
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
 import speiger.src.collections.PACKAGE.utils.ITERABLES;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
+#if !LINKED_HASH_SET_FEATURE && LINKED_CUSTOM_HASH_SET_FEATURE
+import speiger.src.collections.PACKAGE.utils.STRATEGY;
+#endif
+import speiger.src.collections.utils.ISizeProvider;
 
 /**
  * A Type-Specific {@link Iterable} that reduces (un)boxing
@@ -72,6 +130,17 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	}
 	
 #endif
+	/**
+	 * A Indexed forEach implementation that allows you to keep track of how many elements were already iterated over.
+	 * @param action The action to be performed for each element
+	 * @throws java.lang.NullPointerException if the specified action is null
+	 */
+	public default void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		int index = 0;
+		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();action.accept(index++, iter.NEXT()));
+	}
+	
 	/**
 	 * Helper function to reduce Lambda usage and allow for more method references, since these are faster/cleaner.
 	 * @param input the object that should be included
@@ -84,6 +153,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 		iterator().forEachRemaining(input, action);
 	}
 	
+#if SPLIT_ITERATOR_FEATURE
 	/**
 	 * A Type Specific Type Splititerator to reduce boxing/unboxing
 	 * @return type specific splititerator
@@ -91,6 +161,8 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	@Override
 	default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createUnknownSplititerator(iterator(), 0); }
 	
+#endif
+#if ASYNC_MODULE
 	/**
 	 * Creates a Async Builder for moving work of the thread.
 	 * It is not designed to split the work to multithreaded work, so using this keep it singlethreaded, but it allows to be moved to another thread.
@@ -101,6 +173,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 		return new ASYNC_BUILDERBRACES(this);
 	}
 
+#endif
 	/**
 	 * A Helper function to reduce the usage of Streams and allows to convert a Iterable to something else.
 	 * @param mapper the mapping function
@@ -111,12 +184,32 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 		return ITERABLES.map(this, mapper);
 	}
 	
+#if TYPE_OBJECT
+#iterate
+#argument OUTPUT_ITERABLE BooleanIterable ByteIterable ShortIterable IntIterable LongIterable FloatIterable DoubleIterable
+#argument MAPPER Predicate ToByteFunction ToShortFunction ToIntFunction ToLongFunction ToFloatFunction ToDoubleFunction
+#argument DATA_TYPE Boolean Byte Short Int Long Float Double
+#argument FILTER_TYPE BOOLEAN_COLLECTION_MODULE BYTE_COLLECTION_MODULE SHORT_COLLECTION_MODULE INT_COLLECTION_MODULE LONG_COLLECTION_MODULE FLOAT_COLLECTION_MODULE DOUBLE_COLLECTION_MODULE
+#if FILTER_TYPE
+	/**
+	 * A Helper function to reduce the usage of Streams and allows to convert a Iterable to something else.
+	 * @param mapper the mapping function
+	 * @return a new Iterable that returns the desired result
+	 */
+	default OUTPUT_ITERABLE mapToDATA_TYPE(MAPPER<T> mapper) {
+		return ITERABLES.mapToDATA_TYPE(this, mapper);
+	}
+	
+#endif
+#enditerate
+#endif
 	/**
 	 * A Helper function to reduce the usage of Streams and allows to convert a Iterable to something else.
 	 * @param mapper the flatMapping function
 	 * @param <V> The return type supplier.
 	 * @param <E> The return type.
 	 * @return a new Iterable that returns the desired result
+	 * @note does not support TO_ARRAY optimizations.
 	 */
 	default <E, V extends Iterable<E>> ObjectIterable<E> flatMap(TO_OBJECT_FUNCTION KKS_GENERIC_TYPE<V> mapper) {
 		return ITERABLES.flatMap(this, mapper);
@@ -127,6 +220,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	 * @param mapper the flatMapping function
 	 * @param <E> The return type.
 	 * @return a new Iterable that returns the desired result
+	 * @note does not support TO_ARRAY optimizations.
 	 */
 	default <E> ObjectIterable<E> arrayflatMap(TO_OBJECT_FUNCTION KKS_GENERIC_TYPE<E[]> mapper) {
 		return ITERABLES.arrayFlatMap(this, mapper);
@@ -136,6 +230,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	 * A Helper function to reduce the usage of Streams and allows to filter out unwanted elements
 	 * @param filter the elements that should be kept.
 	 * @return a Iterable that filtered out all unwanted elements
+	 * @note does not support TO_ARRAY optimizations.
 	 */
 	default ITERABLE KEY_GENERIC_TYPE filter(PREDICATE KEY_GENERIC_TYPE filter) {
 		return ITERABLES.filter(this, filter);
@@ -144,11 +239,21 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	/**
 	 * A Helper function to reduce the usage of Streams and allows to filter out duplicated elements
 	 * @return a Iterable that filtered out all duplicated elements
+	 * @note does not support TO_ARRAY optimizations.
 	 */
 	default ITERABLE KEY_GENERIC_TYPE distinct() {
 		return ITERABLES.distinct(this);
 	}
 	
+	/**
+	 * A Helper function to reduce the usage of Streams and allows to repeat elements a desired amount of times
+	 * @param repeats how many times the elements should be repeated
+	 * @return a Iterable that is repeating multiple times
+	 */
+	default ITERABLE KEY_GENERIC_TYPE repeat(int repeats) {
+		return ITERABLES.repeat(this, repeats);
+	}
+	
 	/**
 	 * A Helper function to reduce the usage of Streams and allows to limit the amount of elements
 	 * @param limit the amount of elements it should be limited to
@@ -187,21 +292,81 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 		return collection;
 	}
 	
+#if ARRAY_LIST_FEATURE || LINKED_LIST_FEATURE
 	/**
 	 * A Helper function that reduces the usage of streams and allows to collect all elements as a ArrayList
 	 * @return a new ArrayList of all elements
 	 */
 	default LIST KEY_GENERIC_TYPE pourAsList() {
+#if ARRAY_LIST_FEATURE
 		return pour(new ARRAY_LISTBRACES());
+#else
+		return pour(new LINKED_LISTBRACES());
+#endif
 	}
 	
-#if !TYPE_BOOLEAN
+#endif
+#if !TYPE_BOOLEAN && SET_MODULE
+#if LINKED_SET_FEATURE || LINKED_CUSTOM_SET_FEATURE || SET_FEATURE || CUSTOM_SET_FEATURE || RB_TREE_SET_FEATURE || AVL_TREE_SET_FEATURE || ARRAY_SET_FEATURE
 	/**
 	 * A Helper function that reduces the usage of streams and allows to collect all elements as a LinkedHashSet
 	 * @return a new LinkedHashSet of all elements
 	 */
 	default SET KEY_GENERIC_TYPE pourAsSet() { 
+#if LINKED_SET_FEATURE
 		return pour(new LINKED_HASH_SETBRACES());
+#else if LINKED_CUSTOM_SET_FEATURE
+		return pour(new LINKED_CUSTOM_HASH_SETBRACES(STRATEGY.normalStrategy()));
+#else if SET_FEATURE
+		return pour(new HASH_SETBRACES());
+#else if CUSTOM_SET_FEATURE
+		return pour(new CUSTOM_HASH_SETBRACES(STRATEGY.normalStrategy()));
+#else if RB_TREE_SET_FEATURE
+		return pour(new RB_Tree_SETBRACES());
+#else if AVL_TREE_SET_FEATURE
+		return pour(new AVL_Tree_SETBRACES());
+#else if ARRAY_SET_FEATURE
+		return pour(new ARRAY_SETBRACES());
+#endif
+	}
+	
+#endif
+#endif	
+#if TYPE_OBJECT
+	/**
+	 * A Helper function that reduces the usage of streams and allows to collect all elements as a Array
+	 * @param action is the creator function of said Array to ensure type is kept.
+	 * @param <E> the returning arrayType
+	 * @return a new Array of all elements
+	 */
+	default <E> E[] TO_ARRAY(IntFunction<E[]> action) {
+		ISizeProvider prov = ISizeProvider.of(this);
+		if(prov != null) {
+			int size = prov.size();
+			if(size >= 0) {
+				E[] array = action.apply(size);
+				ITERATORS.unwrap(array, iterator());
+				return array;
+			}
+		}
+		return ARRAYS.pour(iterator(), action);
+	}
+#else
+	/**
+	 * A Helper function that reduces the usage of streams and allows to collect all elements as a Array
+	 * @return a new Array of all elements
+	 */
+	default KEY_TYPE[] TO_ARRAY() {
+		ISizeProvider prov = ISizeProvider.of(this);
+		if(prov != null) {
+			int size = prov.size();
+			if(size >= 0) {
+				KEY_TYPE[] array = NEW_KEY_ARRAY(size);
+				ITERATORS.unwrap(array, iterator());
+				return array;
+			}
+		}
+		return ARRAYS.pour(iterator());
 	}
 	
 #endif
@@ -213,7 +378,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	default boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
-			if(filter.TEST_VALUE(iter.NEXT())) return true;
+			if(filter.test(iter.NEXT())) return true;
 		}
 		return false;
 	}
@@ -226,7 +391,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	default boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
-			if(filter.TEST_VALUE(iter.NEXT())) return false;
+			if(filter.test(iter.NEXT())) return false;
 		}
 		return true;
 	}
@@ -239,7 +404,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	default boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
-			if(!filter.TEST_VALUE(iter.NEXT())) return false;
+			if(!filter.test(iter.NEXT())) return false;
 		}
 		return true;
 	}
@@ -249,13 +414,13 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	 * @param filter that should be applied
 	 * @return the found value or the null equivalent variant.
 	 */
-	default KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	default OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
 			KEY_TYPE entry = iter.NEXT();
-			if(filter.TEST_VALUE(entry)) return entry;
+			if(filter.test(entry)) return OPTIONAL.GET_OPTIONAL(entry);
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 #if !TYPE_OBJECT
@@ -300,7 +465,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	 * @param operator the operation that should be applied
 	 * @return the reduction result, returns null value if nothing was found
 	 */
-	default KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	default OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -312,7 +477,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 			}
 			state = operator.APPLY_VALUE(state, iter.NEXT());
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}	
 	
 	/**
@@ -324,7 +489,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 		Objects.requireNonNull(filter);
 		int result = 0;
 		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
-			if(filter.TEST_VALUE(iter.NEXT())) result++;
+			if(filter.test(iter.NEXT())) result++;
 		}
 		return result;
 	}

src/builder/resources/speiger/assets/collections/templates/collections/OrderedCollection.template

@@ -0,0 +1,83 @@
+package speiger.src.collections.PACKAGE.collections;
+
+#if JAVA_VERSION>=21
+import java.util.SequencedCollection;
+
+public interface ORDERED_COLLECTION KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, SequencedCollection<CLASS_TYPE> {
+#else
+public interface ORDERED_COLLECTION KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE {
+#endif
+	@Java21
+	ORDERED_COLLECTION KEY_GENERIC_TYPE reversed();
+	
+	/**
+	 * A method to add an element to the start of a collection
+	 * @param e that should be added at the start.
+	 */
+	public void addFirst(KEY_TYPE e);
+	
+	/**
+	 * A method to add an element to the end of a collection
+	 * @param e that should be added at the end.
+	 */
+	public void addLast(KEY_TYPE e);
+	
+	/**
+	 * A method to get the first element in the collection
+	 * @return first element in the collection
+	 */
+	public KEY_TYPE GET_FIRST_KEY();
+	/**
+	 * A method to get and remove the first element in the collection
+	 * @return first element in the collection
+	 */
+	public KEY_TYPE REMOVE_FIRST_KEY();
+	/**
+	 * A method to get the last element in the collection
+	 * @return last element in the collection
+	 */
+	public KEY_TYPE GET_LAST_KEY();
+	/**
+	 * A method to get and remove the last element in the collection
+	 * @return last element in the collection
+	 */
+	public KEY_TYPE REMOVE_LAST_KEY();
+	
+#if JAVA_VERSION>=21 && !TYPE_OBJECT
+	@Override
+	@Deprecated
+	default void addFirst(CLASS_TYPE e) {
+		addFirst(OBJ_TO_KEY(e));
+	}
+	
+	@Override
+	@Deprecated
+	default void addLast(CLASS_TYPE e) {
+		addLast(OBJ_TO_KEY(e));
+	}
+	
+	@Override
+	@Deprecated
+	default CLASS_TYPE getFirst() {
+		return KEY_TO_OBJ(GET_FIRST_KEY());
+	}
+	
+	@Override
+	@Deprecated
+	default CLASS_TYPE getLast() {
+		return KEY_TO_OBJ(GET_LAST_KEY());
+	}
+	
+	@Override
+	@Deprecated
+	default CLASS_TYPE removeFirst() {
+		return KEY_TO_OBJ(REMOVE_FIRST_KEY());
+	}
+
+	@Override
+	@Deprecated
+	default CLASS_TYPE removeLast() {
+		return KEY_TO_OBJ(REMOVE_LAST_KEY());
+	}
+#endif
+}

src/builder/resources/speiger/assets/collections/templates/collections/Stack.template

@@ -1,5 +1,7 @@
 package speiger.src.collections.PACKAGE.collections;
 
+import java.util.NoSuchElementException;
+
 import speiger.src.collections.utils.Stack;
 
 /**
@@ -14,6 +16,14 @@ public interface STACK
 	 */
 	public void push(KEY_TYPE e);
 	
+	/**
+	 * Helper function that pushes the top element on top of the stack again.
+	 * @throws NoSuchElementException if the stack is empty
+	 */
+	public default void pushTop() {
+		push(top());
+	}
+	
 	/**
 	 * Removes the Object on top of the stack.
 	 * @return the element that is on top of the stack
@@ -59,4 +69,19 @@ public interface STACK
 	public default boolean isEmpty() {
 		return size() == 0;
 	}
+	
+	/**
+	 * A method to drop the contents of the Stack without clearing the stack
+	 * @Type(E)
+	 * @return the contents of the stack into a seperate array.
+	 */
+	public default GENERIC_SPECIAL_KEY_BRACES<E> KEY_SPECIAL_TYPE[] TO_ARRAY() { return TO_ARRAY(NEW_SPECIAL_KEY_ARRAY(size())); }
+	/**
+	 * A method to drop the contents of the Stack without clearing the stack
+	 * @param input where the elements should be inserted to. If it does not fit then it creates a new appropiatly created array
+	 * @Type(E)
+	 * @return the contents of the stack into a seperate array.
+	 * @note if the Type is generic then a Object Array is created instead of a Type Array
+	 */
+	public GENERIC_SPECIAL_KEY_BRACES<E> KEY_SPECIAL_TYPE[] TO_ARRAY(KEY_SPECIAL_TYPE[] input);
 }

src/builder/resources/speiger/assets/collections/templates/functions/Optional.template

@@ -0,0 +1,89 @@
+package speiger.src.collections.PACKAGE.functions;
+
+import java.util.NoSuchElementException;
+import java.util.function.Supplier;
+
+public final class OPTIONAL KEY_GENERIC_TYPE {
+	private static final OPTIONAL NO_GENERIC_TYPE EMPTY = new OPTIONALBRACES();
+	
+	private final boolean isPresent;
+	private final KEY_TYPE value;
+	
+	private OPTIONAL() {
+		this.isPresent = false;
+		this.value = EMPTY_VALUE;
+	}
+	
+	private OPTIONAL(KEY_TYPE value) {
+		this.isPresent = true;
+		this.value = value;
+	}
+	
+	public static OPTIONAL KEY_GENERIC_TYPE empty() {
+		return EMPTY;
+	}
+	
+	public static OPTIONAL KEY_GENERIC_TYPE of(KEY_TYPE value) {
+		return new OPTIONALBRACES(value);
+	}
+	
+	public KEY_TYPE SUPPLY_GET() {
+		if(!isPresent) throw new NoSuchElementException("No value present");
+		return value;
+	}
+	
+	public boolean isPresent() {
+		return isPresent;
+	}
+	
+	public boolean isEmpty() {
+		return !isPresent;
+	}
+	
+	public void ifPresent(CONSUMER KEY_GENERIC_TYPE consumer) {
+		if(isPresent) consumer.accept(value);
+	}
+	
+    public void ifPresentOrElse(CONSUMER KEY_GENERIC_TYPE action, Runnable emptyAction) {
+        if (isPresent) action.accept(value);
+        else emptyAction.run();
+    }
+	
+	public KEY_TYPE orElse(KEY_TYPE other) {
+		return isPresent ? value : other;
+	}
+	
+	public KEY_TYPE orElseGet(SUPPLIER KEY_GENERIC_TYPE other) {
+		return isPresent ? value : other.SUPPLY_GET();
+	}
+	
+	public KEY_TYPE orElseThrow() {
+        if (!isPresent) throw new NoSuchElementException("No value present");
+		return value;
+	}
+	
+    public <X extends Throwable> KEY_TYPE orElseThrow(Supplier<? extends X> exceptionSupplier) throws X {
+    	if(isPresent) return value;
+    	else throw exceptionSupplier.get();
+    }
+    
+    @Override
+    public boolean equals(Object obj) {
+    	if(obj == this) return true;
+    	if(obj instanceof OPTIONAL) {
+    		OPTIONAL KEY_GENERIC_TYPE other = (OPTIONAL KEY_GENERIC_TYPE)obj;
+    		return (isPresent && other.isPresent ? KEY_EQUALS(value, other.value) : isPresent == other.isPresent);
+    	}
+    	return false;
+    }
+    
+    @Override
+    public int hashCode() {
+    	return isPresent ? KEY_TO_HASH(value) : 0;
+    }
+    
+    @Override
+    public String toString() {
+    	return isPresent ? "OPTIONAL["+value+"]" : "OPTIONAL.empty";
+    }
+}

src/builder/resources/speiger/assets/collections/templates/functions/Supplier.template

@@ -15,12 +15,5 @@ public interface SUPPLIER KEY_GENERIC_TYPE
 	/**
 	 * @return the supplied value
 	 */
-	public KEY_TYPE GET_KEY();
-#if JDK_TYPE && PRIMITIVES
-	
-	@Override
-	public default KEY_TYPE GET_JAVA() {
-		return GET_KEY();
-	}
-#endif
+	public KEY_TYPE SUPPLY_GET();
 }

src/builder/resources/speiger/assets/collections/templates/functions/function/Function.template

@@ -1,6 +1,6 @@
 package speiger.src.collections.PACKAGE.functions.function;
 
-#if JDK_FUNCTION && VALUE_BOOLEAN
+#if VALUE_BOOLEAN || SAME_TYPE
 import java.util.Objects;
 #endif
 
@@ -21,12 +21,67 @@ public interface FUNCTION KEY_VALUE_GENERIC_TYPE
 	 * @param k the value that should be processed
 	 * @return the result of the function
 	 */
-	public VALUE_TYPE GET_VALUE(KEY_TYPE k);
+	public VALUE_TYPE APPLY(KEY_TYPE k);
 	
-#if JDK_FUNCTION
+#if SAME_TYPE
+	/**
+	 * Creates a Default function that returns the input provided.
+	 * @Type(T)
+	 * @return a input returning function
+	 */
+	public static GENERIC_KEY_BRACES FUNCTION KEY_SAME_GENERIC_TYPE identity() {
+		return T -> T;
+	}
+	
+	/**
+	 * Returns a composed function that first applies the {@code before}
+     * function to its input, and then applies this function to the result.
+     * If evaluation of either function throws an exception, it is relayed to
+     * the caller of the composed function.
+     * 
+     * @Type(I)
+     * @param before the function that should be used first
+     * @return a composed function with a different starting function.
+	 */
+	public default GENERIC_SPECIAL_VALUE_BRACES<I> FUNCTION SV_GENERIC_TYPE<I> compose(FUNCTION SK_GENERIC_TYPE<I> before) {
+        Objects.requireNonNull(before);
+		return T -> APPLY(before.APPLY(T));
+	}
+	
+	/**
+     * Returns a composed function that first applies this function to
+     * its input, and then applies the {@code after} function to the result.
+     * If evaluation of either function throws an exception, it is relayed to
+     * the caller of the composed function.
+     * 
+     * @Type(I)
+     * @param after the function that should be used last
+     * @return a composed function with a different starting function.
+	 */
+	public default GENERIC_SPECIAL_VALUE_BRACES<I> FUNCTION KS_GENERIC_TYPE<I> andThen(FUNCTION VS_GENERIC_TYPE<I> after) {
+        Objects.requireNonNull(after);
+		return T -> after.APPLY(APPLY(T));
+	}
+	
+#endif
 #if VALUE_BOOLEAN
-	@Override
-	public default VALUE_TYPE test(KEY_TYPE k) { return GET_VALUE(k); }
+	/**
+	 * Creates a Always true function that may be useful if you don't need to process information or just want a default.
+	 * @Type(T)
+	 * @return a default returning function
+	 */
+	public static GENERIC_KEY_BRACES FUNCTION KEY_GENERIC_TYPE alwaysTrue() {
+		return T -> true;
+	}
+	
+	/**
+	 * Creates a Always false function that may be useful if you don't need to process information or just want a default.
+	 * @Type(T)
+	 * @return a default returning function
+	 */
+	public static GENERIC_KEY_BRACES FUNCTION KEY_GENERIC_TYPE alwaysFalse() {
+		return T -> false;
+	}
 	
 	/**
 	 * A Type specific and-function helper function that reduces boxing/unboxing
@@ -35,19 +90,26 @@ public interface FUNCTION KEY_VALUE_GENERIC_TYPE
 	 */
 	public default FUNCTION KEY_VALUE_GENERIC_TYPE andType(FUNCTION KEY_VALUE_GENERIC_TYPE other) {
 		Objects.requireNonNull(other);
-		return T -> GET_VALUE(T) && other.GET_VALUE(T);
+		return T -> APPLY(T) && other.APPLY(T);
 	}
 	
+#if JDK_FUNCTION
 	@Override
 	@Deprecated
 	public default FUNCTION KEY_VALUE_GENERIC_TYPE and(JAVA_FUNCTION KEY_VALUE_SUPER_GENERIC_TYPE other) {
 		Objects.requireNonNull(other);
-		return T -> GET_VALUE(T) && other.test(T);
+		return T -> APPLY(T) && other.APPLY(T);
 	}
 	
 	@Override
+#else
+	/**
+	 * A type specific inverter function
+	 * @return the same function but inverts the result
+	 */
+#endif
 	public default FUNCTION KEY_VALUE_GENERIC_TYPE negate() {
-		return T -> !GET_VALUE(T);
+		return T -> !APPLY(T);
 	}
 	
 	/**
@@ -57,23 +119,16 @@ public interface FUNCTION KEY_VALUE_GENERIC_TYPE
 	 */
 	public default FUNCTION KEY_VALUE_GENERIC_TYPE orType(FUNCTION KEY_VALUE_GENERIC_TYPE other) {
 		Objects.requireNonNull(other);
-		return T -> GET_VALUE(T) || other.GET_VALUE(T);
+		return T -> APPLY(T) || other.APPLY(T);
 	}
 	
+#if JDK_FUNCTION
 	@Override
 	@Deprecated
 	public default FUNCTION KEY_VALUE_GENERIC_TYPE or(JAVA_FUNCTION KEY_VALUE_SUPER_GENERIC_TYPE other) {
 		Objects.requireNonNull(other);
-		return T -> GET_VALUE(T) || other.test(T);
+		return T -> APPLY(T) || other.APPLY(T);
 	}
-#else if VALUE_OBJECT
-	
-	@Override
-	public default VALUE_TYPE apply(KEY_TYPE k) { return GET_VALUE(k); }
-#else
-	
-	@Override
-	public default VALUE_TYPE APPLY_VALUE(KEY_TYPE k) { return GET_VALUE(k); }
 #endif
 #endif
 }

src/builder/resources/speiger/assets/collections/templates/lists/AbstractList.template

@@ -1,16 +1,25 @@
 package speiger.src.collections.PACKAGE.lists;
 
 import java.util.Collection;
+import java.util.Iterator;
 import java.util.List;
 import java.util.ListIterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+import java.util.RandomAccess;
 
 import speiger.src.collections.PACKAGE.collections.ABSTRACT_COLLECTION;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
+#endif
+#if INT_LIST_MODULE && !TYPE_INT
+import speiger.src.collections.ints.lists.IntList;
+#endif
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
 import speiger.src.collections.utils.SanityChecks;
 
 /**
@@ -66,8 +75,7 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 	 */
 	@Override
 	@Deprecated
-	public boolean addAll(Collection<? extends CLASS_TYPE> c)
-	{
+	public boolean addAll(Collection<? extends CLASS_TYPE> c) {
 		return c instanceof COLLECTION ? addAll((COLLECTION KEY_GENERIC_TYPE)c) : addAll(size(), c);
 	}
 	
@@ -221,6 +229,11 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		return new SubList(this, 0, fromIndex, toIndex);
 	}
 	
+	@Override
+	public LIST KEY_GENERIC_TYPE reversed() {
+		return new ReversedList(this);
+	}
+	
 	@Override
 	public ITERATOR KEY_GENERIC_TYPE iterator() {
 		return listIterator(0);
@@ -237,6 +250,18 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		return new LIST_ITER(index);
 	}
 	
+	@Override
+	public LIST_ITERATOR KEY_GENERIC_TYPE indexedIterator(int...indecies) {
+		return new IndexedIterator(indecies);
+	}
+	
+#if INT_LIST_MODULE
+	@Override
+	public LIST_ITERATOR KEY_GENERIC_TYPE indexedIterator(IntList indecies) {
+		return new ListIndexedIterator(indecies);
+	}
+	
+#endif
 	@Override
 	public void size(int size) {
 		while(size > size()) add(EMPTY_KEY_VALUE);
@@ -245,6 +270,138 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 	
 	public ABSTRACT_LIST KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 	
+	private class ReversedList extends ABSTRACT_LIST KEY_GENERIC_TYPE
+	{
+		final ABSTRACT_LIST KEY_GENERIC_TYPE list;
+		
+		public ReversedList(ABSTRACT_LIST KEY_GENERIC_TYPE list) {
+			this.list = list;
+		}
+
+		@Override
+		public void add(int index, KEY_TYPE e) {
+			list.add(list.size() - index - 1, e);
+		}
+		
+		@Override
+		public boolean addAll(int index, COLLECTION KEY_GENERIC_TYPE c) {
+			return addCollection(index, c);
+		}
+		
+		@Override
+		public boolean addAll(int index, LIST KEY_GENERIC_TYPE c) {
+			if(c instanceof RandomAccess) {
+				for(int i = 0,m=c.size();i<m;i++) {
+					list.add(list.size() - index - i - 1, c.GET_KEY(i));
+				}
+				return true;
+			}
+			return addCollection(index, c);
+		}
+		
+		private boolean addCollection(int index, COLLECTION KEY_GENERIC_TYPE c) {
+			int i = 0;
+			for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();i++) {
+				list.add(list.size() - index - i - 1, iter.NEXT());
+			}
+			return true;
+		}
+		
+		@Override
+		public boolean addAll(int index, Collection<? extends CLASS_TYPE> c) {
+			int i = 0;
+			for(Iterator<? extends CLASS_TYPE> iter = c.iterator();iter.hasNext();i++) {
+				list.add(list.size() - index - i - 1, iter.next());
+			}
+			return true;
+		}
+		
+		@Override
+		public KEY_TYPE GET_KEY(int index) {
+			return list.GET_KEY(list.size() - index - 1);
+		}
+
+		@Override
+		public KEY_TYPE set(int index, KEY_TYPE e) {
+			return list.set(list.size() - index - 1, e);
+		}
+
+		@Override
+		public KEY_TYPE REMOVE(int index) {
+			return list.REMOVE(list.size() - index - 1);
+		}
+		
+		@Override
+		public void addElements(int from, KEY_TYPE[] a, int offset, int length) {
+			for(int i = 0,m=length;i<m;i++) {
+				list.add(list.size() - from - i - 1, a[i+offset]);
+			}
+		}
+		
+		@Override
+		public KEY_TYPE[] getElements(int from, KEY_TYPE[] a, int offset, int length) {
+			return reverse(list.getElements(list.size() - from - 1, a, offset, length));
+		}
+
+		@Override
+		public void removeElements(int from, int to) {
+			list.removeElements(list.size() - to - 1, list.size() - from - 1);
+		}
+
+		@Override
+		public KEY_TYPE swapRemove(int index) {
+			return list.swapRemove(list.size() - index - 1);
+		}
+#if TYPE_OBJECT
+		@Override
+		public <K> K[] extractElements(int from, int to, Class<K> type) {
+			return reverse(list.extractElements(list.size() - to - 1, list.size() - from - 1, type));
+		}
+		
+#else
+		@Override
+		public KEY_TYPE[] extractElements(int from, int to) {
+			return reverse(list.extractElements(list.size() - to - 1, list.size() - from - 1));
+		}
+		
+#endif
+		@Override
+		public int size() {
+			return list.size();
+		}
+		
+		@Override
+		public void clear() {
+			list.clear();
+		}
+		
+		@Override
+		public LIST KEY_GENERIC_TYPE reversed() {
+			return list;
+		}
+		
+#if TYPE_OBJECT
+		private <K> K[] reverse(K[] data) {
+			for (int i = 0, mid = data.length >> 1, j = data.length - 1; i < mid; i++, j--) {
+				K t = data[i];
+				data[i] = data[j];
+				data[j] = t;
+			}
+			return data;
+		}
+#else
+		private KEY_TYPE[] reverse(KEY_TYPE[] data) {
+			for (int i = 0, mid = data.length >> 1, j = data.length - 1; i < mid; i++, j--) {
+				KEY_TYPE t = data[i];
+				data[i] = data[j];
+				data[j] = t;
+			}
+			return data;
+		}
+	
+#endif
+	}
+	
 	private class SubList extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	{
 		final ABSTRACT_LIST KEY_GENERIC_TYPE list;
@@ -308,7 +465,7 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		public KEY_TYPE[] getElements(int from, KEY_TYPE[] a, int offset, int length) {
 			SanityChecks.checkArrayCapacity(size, from, length);
 			SanityChecks.checkArrayCapacity(a.length, offset, length);
-			return list.getElements(from+this.offset, a, offset, length);
+			return list.getElements(from+parentOffset, a, offset, length);
 		}
 		
 		@Override
@@ -344,19 +501,25 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		@Override
 		public KEY_TYPE GET_KEY(int index) {
 			checkSubRange(index);
-			return list.GET_KEY(offset+index);
+			return list.GET_KEY(parentOffset+index);
 		}
 
 		@Override
 		public KEY_TYPE set(int index, KEY_TYPE element) {
 			checkSubRange(index);
-			return list.set(offset+index, element);
+			return list.set(parentOffset+index, element);
 		}
 		
 		@Override
 		public KEY_TYPE swapRemove(int index) {
 			checkSubRange(index);
-			KEY_TYPE result = list.swapRemove(index+parentOffset);
+			if(index == size-1) {
+				KEY_TYPE result = list.REMOVE(parentOffset+size-1);
+				size--;
+				return result;
+			}
+			KEY_TYPE result = list.set(index+parentOffset, list.GET_KEY(parentOffset+size-1));
+			list.REMOVE(parentOffset+size-1);
 			size--;
 			return result;
 		}
@@ -373,9 +536,10 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		public int size() {
 			return size;
 		}
-		
+#if SPLIT_ITERATOR_FEATURE
 		@Override
 		public SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 16464); }
+#endif
 		
 		@Override
 		public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index) {
@@ -386,7 +550,7 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		@Override
 		public LIST KEY_GENERIC_TYPE subList(int fromIndex, int toIndex) {
 			SanityChecks.checkArrayCapacity(size, fromIndex, toIndex-fromIndex);
-			return new SubList(list, offset, fromIndex, toIndex);
+			return new SubList(this, offset, fromIndex, toIndex);
 		}
 		
 		protected void checkSubRange(int index) {
@@ -460,15 +624,17 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 			
 			@Override
 			public void add(KEY_TYPE e) {
-				list.add(index++, e);
+				list.add(index, e);
+				index++;
 				lastReturned = -1;
 			}
 			
 			@Override
 			public int skip(int amount) {
 				if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
-				int steps = Math.min(amount, (list.size() - 1) - index);
+				int steps = Math.min(amount, size() - index);
 				index += steps;
+				if(steps > 0) lastReturned = Math.min(index-1, size()-1);
 				return steps;
 			}
 			
@@ -477,11 +643,160 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 				if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
 				int steps = Math.min(amount, index);
 				index -= steps;
+				if(steps > 0) lastReturned = Math.min(index, size()-1);
 				return steps;
 			}
 		}
 	}
 	
+#if INT_LIST_MODULE
+	private class ListIndexedIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
+		IntList indecies;
+		int index;
+		int lastReturned = -1;
+		
+		ListIndexedIterator(IntList indecies) {
+			this.indecies = indecies;
+		}
+		
+		@Override
+		public boolean hasNext() {
+			return index < indecies.size();
+		}
+		
+		@Override
+		public KEY_TYPE NEXT() {
+			if(!hasNext()) throw new NoSuchElementException();
+			int i = index++;
+			return GET_KEY((lastReturned = indecies.getInt(i)));
+		}
+		
+		@Override
+		public boolean hasPrevious() {
+			return index > 0;
+		}
+		
+		@Override
+		public KEY_TYPE PREVIOUS() {
+			if(!hasPrevious()) throw new NoSuchElementException();
+			index--;
+			return GET_KEY((lastReturned = indecies.getInt(index)));
+		}
+		
+		@Override
+		public int nextIndex() {
+			return index;
+		}
+		
+		@Override
+		public int previousIndex() {
+			return index-1;
+		}
+		
+		@Override
+		public void remove() { throw new UnsupportedOperationException(); }
+		@Override
+		public void add(KEY_TYPE e) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public void set(KEY_TYPE e) {
+			if(lastReturned == -1) throw new IllegalStateException();
+			ABSTRACT_LIST.this.set(lastReturned, e);
+		}
+		
+		@Override
+		public int skip(int amount) {
+			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+			int steps = Math.min(amount, indecies.size() - index);
+			index += steps;
+			if(steps > 0) lastReturned = Math.min(index-1, indecies.size()-1);
+			return steps;
+		}
+		
+		@Override
+		public int back(int amount) {
+			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+			int steps = Math.min(amount, index);
+			index -= steps;
+			if(steps > 0) lastReturned = Math.max(index, 0);
+			return steps;
+		}
+	}
+	
+#endif
+	private class IndexedIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
+		int[] indecies;
+		int index;
+		int lastReturned = -1;
+		
+		IndexedIterator(int[] indecies) {
+			this.indecies = indecies;
+		}
+		
+		@Override
+		public boolean hasNext() {
+			return index < indecies.length;
+		}
+		
+		@Override
+		public KEY_TYPE NEXT() {
+			if(!hasNext()) throw new NoSuchElementException();
+			int i = index++;
+			return GET_KEY((lastReturned = indecies[i]));
+		}
+		
+		@Override
+		public boolean hasPrevious() {
+			return index > 0;
+		}
+		
+		@Override
+		public KEY_TYPE PREVIOUS() {
+			if(!hasPrevious()) throw new NoSuchElementException();
+			index--;
+			return GET_KEY((lastReturned = indecies[index]));
+		}
+		
+		@Override
+		public int nextIndex() {
+			return index;
+		}
+		
+		@Override
+		public int previousIndex() {
+			return index-1;
+		}
+		
+		@Override
+		public void remove() { throw new UnsupportedOperationException(); }
+		@Override
+		public void add(KEY_TYPE e) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public void set(KEY_TYPE e) {
+			if(lastReturned == -1) throw new IllegalStateException();
+			ABSTRACT_LIST.this.set(lastReturned, e);
+		}
+		
+		@Override
+		public int skip(int amount) {
+			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+			int steps = Math.min(amount, indecies.length - index);
+			index += steps;
+			if(steps > 0) lastReturned = Math.min(index-1, indecies.length-1);
+			return steps;
+		}
+		
+		@Override
+		public int back(int amount) {
+			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+			int steps = Math.min(amount, index);
+			index -= steps;
+			if(steps > 0) lastReturned = Math.max(index, 0);
+			return steps;
+		}
+	}
+	
 	private class LIST_ITER implements LIST_ITERATOR KEY_GENERIC_TYPE {
 		int index;
 		int lastReturned = -1;
@@ -540,15 +855,17 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		
 		@Override
 		public void add(KEY_TYPE e) {
-			ABSTRACT_LIST.this.add(index++, e);
+			ABSTRACT_LIST.this.add(index, e);
+			index++;
 			lastReturned = -1;
 		}
 		
 		@Override
 		public int skip(int amount) {
 			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
-			int steps = Math.min(amount, (size() - 1) - index);
+			int steps = Math.min(amount, size() - index);
 			index += steps;
+			if(steps > 0) lastReturned = Math.min(index-1, size()-1);
 			return steps;
 		}
 		
@@ -557,6 +874,7 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
 			int steps = Math.min(amount, index);
 			index -= steps;
+			if(steps > 0) lastReturned = Math.max(index, 0);
 			return steps;
 		}
 	}

src/builder/resources/speiger/assets/collections/templates/lists/ArrayList.template

@@ -7,14 +7,33 @@ import java.util.Comparator;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
 #if TYPE_OBJECT
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
+
+#endif
+#if TYPE_OBJECT
+#if IARRAY_FEATURE || TYPE_OBJECT
 import java.util.function.Consumer;
+#endif
+
 import java.util.function.BiFunction;
+import java.util.function.IntFunction;
+#endif
+#if !TYPE_OBJECT && JDK_FUNCTION
+import java.util.function.PREDICATE;
 #endif
 import java.util.function.Predicate;
 import java.util.function.UnaryOperator;
 #if PRIMITIVES
+#if !JDK_FUNCTION
 import java.util.function.JAVA_PREDICATE;
+#endif
 import java.util.function.JAVA_UNARY_OPERATOR;
 import java.nio.JAVA_BUFFER;
 #endif
@@ -24,47 +43,58 @@ import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.STACK;
 #endif
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+#if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
+#endif
+import speiger.src.collections.objects.utils.ObjectArrays;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 #if TYPE_OBJECT
 import speiger.src.collections.utils.Stack;
-#else
-import speiger.src.collections.objects.utils.ObjectArrays;
 #endif
-#if PRIMITIVES
+#if PRIMITIVES && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
 import java.util.stream.JAVA_STREAM;
 import java.util.stream.StreamSupport;
 #endif
+#if IARRAY_FEATURE
 import speiger.src.collections.PACKAGE.utils.IARRAY;
+#endif
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
+#if !IARRAY_FEATURE
+import speiger.src.collections.utils.IArray;
+#endif
 import speiger.src.collections.utils.SanityChecks;
 
-#if TYPE_OBJECT
 /**
  * A Type-Specific Array-based implementation of list that is written to reduce (un)boxing
  * 
- * <p>This implementation is optimized to improve how data is processed with interfaces like {@link IARRAY}, {@link Stack}
+#if IARRAY_FEATURE
+ * <p>This implementation is optimized to improve how data is processed with interfaces like {@link IARRAY}, {@link STACK}
+#else
+ * <p>This implementation is optimized to improve how data is processed with interfaces like {@link IArray}, {@link STACK}
+#endif
  * and with optimized functions that use type-specific implementations for primitives and optimized logic for bulkactions.
  * 
  * @Type(T)
  */
-public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE implements IARRAY<KEY_TYPE>, Stack<KEY_TYPE>
+#if IARRAY_FEATURE
+public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE implements IARRAY KEY_GENERIC_TYPE, STACK KEY_GENERIC_TYPE
 #else
-/**
- * A Type-Specific Array-based implementation of list that is written to reduce (un)boxing
- * 
- * <p>This implementation is optimized to improve how data is processed with interfaces like {@link IARRAY}, {@link STACK}
- * and with optimized functions that use type-specific implementations for primitives and optimized logic for bulkactions.
- */
-public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE implements IARRAY, STACK
+public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE implements IArray, STACK KEY_GENERIC_TYPE
 #endif
 {
 	static final int DEFAULT_ARRAY_SIZE = 10;
@@ -86,6 +116,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	 * @param size the minimum initial size of the Backing array
 	 */
 	public ARRAY_LIST(int size) {
+		if(size < 0) throw new IllegalStateException("Size has to be 0 or greater");
 		data = NEW_KEY_ARRAY(size);
 	}
 	
@@ -201,6 +232,42 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return list;
 	}
 	
+#endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ArrayList
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, ObjectArrayList<T>, ObjectArrayList<T>> toList() {
+		return Collector.of(ObjectArrayList::new, ObjectArrayList::add, ObjectArrayList::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a ArrayList
+	 * @Type(T)
+	 * @return a list with the contents of the Stream
+	 */
+	public static <T> ARRAY_LIST KEY_GENERIC_TYPE toList(Stream<T> stream) {
+		return stream.collect(ObjectArrayList::new, ObjectArrayList::add, ObjectArrayList::merge);
+	}
+	
+	private ObjectArrayList<T> merge(ObjectArrayList<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ArrayList
+	 * @return a list with the contents of the Stream
+	 */
+	public static ARRAY_LIST toList(JAVA_STREAM stream) {
+		return stream.collect(ARRAY_LIST::new, ARRAY_LIST::add, ARRAY_LIST::addAll);
+	}
+	
+#endif
 #endif
 	/**
 	 * Appends the specified element to the end of this list.
@@ -586,6 +653,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return data[(size() - 1) - index];
 	}
 	
+#if IARRAY_FEATURE
 	/**
 	 * Provides the Underlying Array in the Implementation
 	 * @return underlying Array
@@ -605,6 +673,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return data.getClass() != Object[].class;
 	}
 	
+#endif
 #endif
 	/**
 	 * A Type Specific foreach function that reduces (un)boxing
@@ -638,7 +707,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(data[i])) return true;
+			if(filter.test(data[i])) return true;
 		}
 		return false;
 	}
@@ -647,7 +716,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(data[i])) return false;
+			if(filter.test(data[i])) return false;
 		}
 		return true;
 	}
@@ -656,18 +725,18 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(!filter.TEST_VALUE(data[i])) return false;
+			if(!filter.test(data[i])) return false;
 		}
 		return true;
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(data[i])) return data[i];
+			if(filter.test(data[i])) return OPTIONAL.GET_OPTIONAL(data[i]);
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 #if !TYPE_OBJECT
@@ -694,7 +763,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -706,7 +775,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 			}
 			state = operator.APPLY_VALUE(state, data[i]);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
@@ -714,7 +783,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		Objects.requireNonNull(filter);
 		int result = 0;
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(data[i])) result++;
+			if(filter.test(data[i])) result++;
 		}
 		return result;
 	}
@@ -1025,6 +1094,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	@Primitive
 	public Object[] toArray() {
+		if(size == 0) return ObjectArrays.EMPTY_ARRAY;
 		Object[] obj = new Object[size];
 		for(int i = 0;i<size;i++)
 			obj[i] = KEY_TO_OBJ(data[i]);
@@ -1060,6 +1130,12 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return a;
 	}
 	
+#else
+	@Override
+	public <E> E[] toArray(IntFunction<E[]> action) {
+		return super.toArray(action);
+	}
+	
 #endif
 	/**
 	 * A function to return the size of the list
@@ -1158,8 +1234,8 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 			throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
 	}
 	
-	
-#if PRIMITIVES
+#if SPLIT_ITERATOR_FEATURE
+#if PRIMITIVES && STREAM_FEATURE
 	/**
 	 * Returns a Java-Type-Specific Stream to reduce boxing/unboxing.
 	 * @return a Stream of the closest java type
@@ -1176,4 +1252,5 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	 */
 	@Override
 	public SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createArraySplititerator(data, size, 16464); }
+#endif
 }

src/builder/resources/speiger/assets/collections/templates/lists/CopyOnWriteList.template

@@ -8,15 +8,31 @@ import java.util.Collection;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
-import java.util.concurrent.locks.ReentrantLock;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
 #if TYPE_OBJECT
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
+#endif
+import java.util.concurrent.locks.ReentrantLock;
 import java.util.function.Consumer;
+import java.util.function.Supplier;
+#if TYPE_OBJECT
 import java.util.function.BiFunction;
+import java.util.function.IntFunction;
+#endif
+#if !TYPE_OBJECT && JDK_FUNCTION
+import java.util.function.PREDICATE;
 #endif
 import java.util.function.Predicate;
 import java.util.function.UnaryOperator;
 #if PRIMITIVES
+#if !JDK_FUNCTION
 import java.util.function.JAVA_PREDICATE;
+#endif
 import java.util.function.JAVA_UNARY_OPERATOR;
 import java.nio.JAVA_BUFFER;
 #endif
@@ -26,26 +42,34 @@ import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.STACK;
 #endif
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+#if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
+#endif
+import speiger.src.collections.objects.utils.ObjectArrays;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 #if TYPE_OBJECT
 import speiger.src.collections.utils.Stack;
-#else
-import speiger.src.collections.objects.utils.ObjectArrays;
 #endif
-#if PRIMITIVES
+#if PRIMITIVES && STREAM_FEATURE && SPLIT_ITERATOR_FEATURE
 import java.util.stream.JAVA_STREAM;
 import java.util.stream.StreamSupport;
 #endif
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
 import speiger.src.collections.utils.ITrimmable;
 import speiger.src.collections.utils.SanityChecks;
 
@@ -147,13 +171,56 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	 * @Type(T)
 	 * @return a typed List
 	 */
-	public static GENERIC_KEY_BRACES ARRAY_LIST KEY_GENERIC_TYPE of(Class<KEY_TYPE> c) {
-		ARRAY_LIST KEY_GENERIC_TYPE list = new ARRAY_LISTBRACES();
+	public static GENERIC_KEY_BRACES COPY_ON_WRITE_LIST KEY_GENERIC_TYPE of(Class<KEY_TYPE> c) {
+		COPY_ON_WRITE_LIST KEY_GENERIC_TYPE list = new COPY_ON_WRITE_LISTBRACES();
 		list.data = (KEY_TYPE[])ObjectArrays.newArray(c, 0);
 		return list;
 	}
 	
 #endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a CopyOnWriteArrayList
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, CopyOnWriteObjectArrayList<T>, CopyOnWriteObjectArrayList<T>> toList() {
+		return Collector.of(CopyOnWriteObjectArrayList::new, CopyOnWriteObjectArrayList::add, CopyOnWriteObjectArrayList::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a CopyOnWriteArrayList
+	 * @Type(T)
+	 * @return a list with the contents of the Stream
+	 */
+	public static <T> CopyOnWriteObjectArrayList KEY_GENERIC_TYPE toList(Stream<T> stream) {
+		return stream.collect(CopyOnWriteObjectArrayList::new, CopyOnWriteObjectArrayList::add, CopyOnWriteObjectArrayList::merge);
+	}
+	
+	private CopyOnWriteObjectArrayList<T> merge(CopyOnWriteObjectArrayList<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a CopyOnWriteArrayList
+	 * @return a list with the contents of the Stream
+	 */
+	public static COPY_ON_WRITE_LIST toList(JAVA_STREAM stream) {
+		return stream.collect(COPY_ON_WRITE_LIST::new, COPY_ON_WRITE_LIST::add, COPY_ON_WRITE_LIST::addAll);
+	}
+	
+#endif
+#endif
+	private void setArray(KEY_TYPE[] data) {
+		this.data = data;
+	}
+	
+	private KEY_TYPE[] getArray() {
+		return data;
+	}
 	
 	/**
 	 * Appends the specified element to the end of this list.
@@ -410,6 +477,8 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	 */
 	@Override
 	public void removeElements(int from, int to) {
+		checkRange(from);
+		checkAddRange(to);
 		int length = to - from;
 		if(length <= 0) return;
 		ReentrantLock lock = this.lock;
@@ -440,9 +509,11 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	 */
 	@Override
 	public <K> K[] extractElements(int from, int to, Class<K> type) {
+		checkRange(from);
+		checkAddRange(to);
 		int length = to - from;
+		if(length <= 0) return ARRAYS.newArray(type, 0);
 		K[] a = ARRAYS.newArray(type, length);
-		if(length <= 0) return a;
 		ReentrantLock lock = this.lock;
 		lock.lock();
 		try {
@@ -450,9 +521,9 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 			System.arraycopy(data, from, a, 0, length);
 			if(to == data.length) this.data = Arrays.copyOf(data, data.length - length);
 			else {
-				int size = data.length-1;
-				KEY_TYPE[] newElements = NEW_KEY_ARRAY(size);
-				System.arraycopy(data, 0, newElements, 0, from);
+				int size = data.length;
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(size-length);
+				if(from != 0) System.arraycopy(data, 0, newElements, 0, from);
 				System.arraycopy(data, to, newElements, from, size - to);
 				this.data = newElements;
 			}
@@ -472,6 +543,8 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	 */
 	@Override
 	public KEY_TYPE[] extractElements(int from, int to) {
+		checkRange(from);
+		checkAddRange(to);
 		int length = to - from;
 		if(length <= 0) return EMPTY_KEY_ARRAY;
 		ReentrantLock lock = this.lock;
@@ -482,9 +555,9 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 			System.arraycopy(data, from, a, 0, length);
 			if(to == data.length) this.data = Arrays.copyOf(data, data.length - length);
 			else {
-				int size = data.length-1;
-				KEY_TYPE[] newElements = NEW_KEY_ARRAY(size);
-				System.arraycopy(data, 0, newElements, 0, from);
+				int size = data.length;
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(size-length);
+				if(from != 0) System.arraycopy(data, 0, newElements, 0, from);
 				System.arraycopy(data, to, newElements, from, size - to);
 				this.data = newElements;
 			}
@@ -509,7 +582,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	 * @return if the element was found.
 	 */
 	@Override
-	@Deprecated
+	@Primitive
 	public boolean contains(Object o) {
 		return indexOf(o) != -1;
 	}
@@ -520,7 +593,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	 * @return the index of the element if found. (if not found then -1)
 	 */
 	@Override
-	@Deprecated
+	@Primitive
 	public int indexOf(Object o) {
 		KEY_TYPE[] data = this.data;
 #if TYPE_OBJECT
@@ -544,7 +617,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	 * @return the last index of the element if found. (if not found then -1)
 	 */
 	@Override
-	@Deprecated
+	@Primitive
 	public int lastIndexOf(Object o) {
 		KEY_TYPE[] data = this.data;
 #if TYPE_OBJECT
@@ -720,7 +793,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	@Override
 	public LIST KEY_GENERIC_TYPE subList(int fromIndex, int toIndex) {
 		SanityChecks.checkArrayCapacity(data.length, fromIndex, toIndex-fromIndex);
-		return new COWSubListBRACES(this, 0, fromIndex, toIndex);
+		return new COWSubListBRACES(this, lock, this::setArray, this::getArray, 0, fromIndex, toIndex);
 	}
 	
 	/**
@@ -758,7 +831,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		Objects.requireNonNull(filter);
 		KEY_TYPE[] data = this.data;
 		for(int i = 0,m=data.length;i<m;i++) {
-			if(filter.TEST_VALUE(data[i])) return true;
+			if(filter.test(data[i])) return true;
 		}
 		return false;
 	}
@@ -768,7 +841,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		Objects.requireNonNull(filter);
 		KEY_TYPE[] data = this.data;
 		for(int i = 0,m=data.length;i<m;i++) {
-			if(filter.TEST_VALUE(data[i])) return false;
+			if(filter.test(data[i])) return false;
 		}
 		return true;
 	}
@@ -778,19 +851,19 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		Objects.requireNonNull(filter);
 		KEY_TYPE[] data = this.data;
 		for(int i = 0,m=data.length;i<m;i++) {
-			if(!filter.TEST_VALUE(data[i])) return false;
+			if(!filter.test(data[i])) return false;
 		}
 		return true;
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		KEY_TYPE[] data = this.data;
 		for(int i = 0,m=data.length;i<m;i++) {
-			if(filter.TEST_VALUE(data[i])) return data[i];
+			if(filter.test(data[i])) return OPTIONAL.GET_OPTIONAL(data[i]);
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 #if !TYPE_OBJECT
@@ -819,7 +892,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE[] data = this.data;
 		KEY_TYPE state = EMPTY_VALUE;
@@ -832,7 +905,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 			}
 			state = operator.APPLY_VALUE(state, data[i]);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
@@ -841,7 +914,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		KEY_TYPE[] data = this.data;
 		int result = 0;
 		for(int i = 0,m=data.length;i<m;i++) {
-			if(filter.TEST_VALUE(data[i])) result++;
+			if(filter.test(data[i])) result++;
 		}
 		return result;
 	}
@@ -1267,6 +1340,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	public Object[] toArray() {
 		KEY_TYPE[] data = this.data;
 		int size = data.length;
+		if(size == 0) return ObjectArrays.EMPTY_ARRAY;
 		Object[] obj = new Object[size];
 		for(int i = 0;i<size;i++)
 			obj[i] = KEY_TO_OBJ(data[i]);
@@ -1305,6 +1379,11 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
 		return a;
 	}
+#else
+	@Override
+	public <E> E[] toArray(IntFunction<E[]> action) {
+		return super.toArray(action);
+	}
 	
 #endif
 	
@@ -1389,7 +1468,13 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 			throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + data.length);
 	}
 	
-	#if PRIMITIVES
+	protected void checkAddRange(int index) {
+		if (index < 0 || index > data.length)
+			throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + data.length);
+	}
+
+#if SPLIT_ITERATOR_FEATURE
+#if PRIMITIVES && STREAM_FEATURE
 	/**
 	 * Returns a Java-Type-Specific Stream to reduce boxing/unboxing.
 	 * @return a Stream of the closest java type
@@ -1407,6 +1492,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	@Override
 	public SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createArraySplititerator(data, data.length, 16464); }
 	
+#endif
 	static final class COWIterator KEY_GENERIC_TYPE implements LIST_ITERATOR KEY_GENERIC_TYPE
 	{
 		KEY_TYPE[] data;
@@ -1436,7 +1522,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		@Override
 		public KEY_TYPE PREVIOUS() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			return data[index--];
+			return data[--index];
 		}
 		
 		@Override
@@ -1459,7 +1545,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		@Override
 		public int skip(int amount) {
 			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
-			int steps = Math.min(amount, (data.length - 1) - index);
+			int steps = Math.min(amount, data.length - index);
 			index += steps;
 			return steps;
 		}
@@ -1475,13 +1561,19 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	
 	private static class COWSubList KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	{
-		final COPY_ON_WRITE_LIST KEY_GENERIC_TYPE list;
+		final ABSTRACT_LIST KEY_GENERIC_TYPE list;
+		final ReentrantLock lock;
+		final Consumer<KEY_TYPE[]> setter;
+		final Supplier<KEY_TYPE[]> getter;
 		final int parentOffset;
 		final int offset;
 		int size;
 		
-		public COWSubList(COPY_ON_WRITE_LIST KEY_GENERIC_TYPE list, int offset, int from, int to) {
+		public COWSubList(ABSTRACT_LIST KEY_GENERIC_TYPE list, ReentrantLock lock, Consumer<KEY_TYPE[]> setter, Supplier<KEY_TYPE[]> getter, int offset, int from, int to) {
 			this.list = list;
+			this.lock = lock;
+			this.setter = setter;
+			this.getter = getter;
 			this.parentOffset = from;
 			this.offset = offset + from;
 			this.size = to - from;
@@ -1489,7 +1581,6 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		
 		@Override
 		public void add(int index, KEY_TYPE element) {
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
 				checkAddSubRange(index);
@@ -1505,7 +1596,6 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		public boolean addAll(int index, Collection<? extends CLASS_TYPE> c) {
 			int add = c.size();
 			if(add <= 0) return false;
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
 				checkAddSubRange(index);
@@ -1522,7 +1612,6 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		public boolean addAll(int index, COLLECTION KEY_GENERIC_TYPE c) {
 			int add = c.size();
 			if(add <= 0) return false;
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
 				checkAddSubRange(index);
@@ -1539,7 +1628,6 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		public boolean addAll(int index, LIST KEY_GENERIC_TYPE c) {
 			int add = c.size();
 			if(add <= 0) return false;
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
 				checkAddSubRange(index);
@@ -1555,7 +1643,6 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		@Override
 		public void addElements(int from, KEY_TYPE[] a, int offset, int length) {
 			if(length <= 0) return;
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
 				checkAddSubRange(from);
@@ -1571,13 +1658,12 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		public KEY_TYPE[] getElements(int from, KEY_TYPE[] a, int offset, int length) {
 			SanityChecks.checkArrayCapacity(size, from, length);
 			SanityChecks.checkArrayCapacity(a.length, offset, length);
-			return list.getElements(from+this.offset, a, offset, length);
+			return list.getElements(from+parentOffset, a, offset, length);
 		}
 		
 		@Override
 		public void removeElements(int from, int to) {
 			if(to-from <= 0) return;
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
 				checkSubRange(from);
@@ -1593,7 +1679,6 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 #if TYPE_OBJECT
 		@Override
 		public <K> K[] extractElements(int from, int to, Class<K> type) {
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
 				checkSubRange(from);
@@ -1610,7 +1695,6 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 #else
 		@Override
 		public KEY_TYPE[] extractElements(int from, int to) {
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
 				checkSubRange(from);
@@ -1628,16 +1712,15 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		@Override
 		public KEY_TYPE GET_KEY(int index) {
 			checkSubRange(index);
-			return list.GET_KEY(offset+index);
+			return list.GET_KEY(parentOffset+index);
 		}
 
 		@Override
 		public KEY_TYPE set(int index, KEY_TYPE element) {
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
 				checkSubRange(index);
-				return list.set(offset+index, element);
+				return list.set(parentOffset+index, element);
 			}
 			finally {
 				lock.unlock();
@@ -1646,11 +1729,18 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		
 		@Override
 		public KEY_TYPE swapRemove(int index) {
-			ReentrantLock lock = list.lock;
+			if(index < 0 || index >= size) throw new IndexOutOfBoundsException();
+			ReentrantLock lock = this.lock;
 			lock.lock();
 			try {
-				checkSubRange(index);
-				KEY_TYPE result = list.swapRemove(index+parentOffset);
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE result = data[offset+index];
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(data.length-1);
+				int end = offset+size-1;
+				System.arraycopy(data, 0, newElements, 0, end);
+				if(end != newElements.length) System.arraycopy(data, end+1, newElements, end, data.length-end-1);
+				if(index+offset != end) newElements[index+offset] = data[end];
+				setter.accept(newElements);
 				size--;
 				return result;
 			}
@@ -1661,7 +1751,6 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		
 		@Override
 		public KEY_TYPE REMOVE(int index) {
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
 				checkSubRange(index);
@@ -1674,6 +1763,371 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 			}
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public boolean REMOVE_KEY(KEY_TYPE type) {
+			int index = indexOf(type);
+			if(index == -1) return false;
+			REMOVE(index);
+			return true;
+		}
+		
+#else
+		@Override
+		public boolean remove(Object type) {
+			int index = indexOf(type);
+			if(index == -1) return false;
+			REMOVE(index);
+			return true;
+		}
+		
+#endif
+		
+#if TYPE_OBJECT
+		@Override
+		public void sort(Comparator<? super CLASS_TYPE> c) {
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newData = Arrays.copyOf(data, data.length);
+				if(c != null) ARRAYS.stableSort(newData, offset, offset+size, c);
+				else ARRAYS.stableSort(newData, offset, offset+size);
+				setter.accept(newData);
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+		@Override
+		public void unstableSort(Comparator<? super CLASS_TYPE> c) {
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newData = Arrays.copyOf(data, data.length);
+				if(c != null) ARRAYS.unstableSort(newData, offset, offset+size, c);
+				else ARRAYS.unstableSort(newData, offset, offset+size);
+				setter.accept(newData);
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+#else
+		@Override
+		public void sort(COMPARATOR c) {
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newData = Arrays.copyOf(data, data.length);
+				if(c != null) ARRAYS.stableSort(newData, offset, offset+size, c);
+				else ARRAYS.stableSort(newData, offset, offset+size);
+				setter.accept(newData);
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+		@Override
+		public void unstableSort(COMPARATOR c) {
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newData = Arrays.copyOf(data, data.length);
+				if(c != null) ARRAYS.unstableSort(newData, offset, offset+size, c);
+				else ARRAYS.unstableSort(newData, offset, offset+size);
+				setter.accept(newData);
+			}
+			finally {
+				lock.unlock();
+			}	
+		}
+		
+#endif
+		
+		@Override
+		@Deprecated
+		public boolean removeAll(Collection<?> c) {
+			if(c.isEmpty()) return false;
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(data.length);
+				int j = 0;
+				for(int i= 0,m=data.length;i<m;i++) {
+					if(i < offset || i >= offset+size) newElements[j++] = data[i];
+					else if(!c.contains(KEY_TO_OBJ(data[i]))) newElements[j++] = data[i];
+				}
+				if(data.length != j) {
+					setter.accept(Arrays.copyOf(newElements, j));
+					size -= data.length - j;
+					return true;
+				}
+				return false;
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+		@Override
+		@Deprecated
+		public boolean retainAll(Collection<?> c) {
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				if(c.isEmpty()) {
+					if(size > 0) {
+						clear();
+						return true;
+					}
+					return false;
+				}
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(data.length);
+				int j = 0;
+				for(int i= 0,m=data.length;i<m;i++) {
+					if(i < offset || i >= offset+size) newElements[j++] = data[i];
+					else if(c.contains(KEY_TO_OBJ(data[i]))) newElements[j++] = data[i];
+				}
+				if(data.length != j) {
+					setter.accept(Arrays.copyOf(newElements, j));
+					size -= data.length - j;
+					return true;
+				}
+				return false;
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+		@Override
+		@Deprecated
+		public boolean removeIf(Predicate<? super CLASS_TYPE> filter) {
+			Objects.requireNonNull(filter);
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(data.length);
+				int j = 0;
+				for(int i= 0,m=data.length;i<m;i++) {
+					if(i < offset || i >= offset+size) newElements[j++] = data[i];
+					else if(!filter.test(KEY_TO_OBJ(data[i]))) newElements[j++] = data[i];
+				}
+				if(data.length != j) {
+					setter.accept(Arrays.copyOf(newElements, j));
+					size -= data.length - j;
+					return true;
+				}
+				return false;
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+		@Override
+		public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c) {
+			if(c.isEmpty()) return false;
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(data.length);
+				int j = 0;
+				for(int i= 0,m=data.length;i<m;i++) {
+					if(i < offset || i >= offset+size) newElements[j++] = data[i];
+					else if(!c.contains(data[i])) newElements[j++] = data[i];
+				}
+				if(data.length != j) {
+					setter.accept(Arrays.copyOf(newElements, j));
+					size -= data.length - j;
+					return true;
+				}
+				return false;
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+		@Override
+		public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) {
+			if(c.isEmpty()) return false;
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(data.length);
+				int j = 0;
+				for(int i= 0,m=data.length;i<m;i++) {
+					if(i < offset || i >= offset+size) newElements[j++] = data[i];
+					else if(!c.contains(data[i])) newElements[j++] = data[i];
+					else r.accept(data[i]);
+				}
+				if(data.length != j) {
+					setter.accept(Arrays.copyOf(newElements, j));
+					size -= data.length - j;
+					return true;
+				}
+				return false;
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+		@Override
+		public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c) {
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				if(c.isEmpty()) {
+					if(size > 0) {
+						clear();
+						return true;
+					}
+					return false;
+				}
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(data.length);
+				int j = 0;
+				for(int i= 0,m=data.length;i<m;i++) {
+					if(i < offset || i >= offset+size) newElements[j++] = data[i];
+					else if(c.contains(data[i])) newElements[j++] = data[i];
+				}
+				if(data.length != j) {
+					setter.accept(Arrays.copyOf(newElements, j));;
+					size -= data.length - j;
+					return true;
+				}
+				return false;
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+		@Override
+		public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) {
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				if(c.isEmpty()) {
+					if(size > 0) {
+						forEach(r);
+						clear();
+						return true;
+					}
+					return false;
+				}
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(data.length);
+				int j = 0;
+				for(int i= 0,m=data.length;i<m;i++) {
+					if(i < offset || i >= offset+size) newElements[j++] = data[i];
+					else if(c.contains(data[i])) newElements[j++] = data[i];
+					else r.accept(data[i]);
+				}
+				if(data.length != j) {
+					setter.accept(Arrays.copyOf(newElements, j));
+					size -= data.length - j;
+					return true;
+				}
+				return false;
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+#if PRIMITIVES
+		@Override
+		public boolean remIf(JAVA_PREDICATE filter) {
+			Objects.requireNonNull(filter);
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newElements = NEW_KEY_ARRAY(data.length);
+				int j = 0;
+				for(int i=0,m=data.length;i<m;i++) {
+					if(i < offset || i >= offset+size) newElements[j++] = data[i];
+					else if(!filter.test(data[i])) newElements[j++] = data[i];
+				}
+				if(data.length != j) {
+					setter.accept(Arrays.copyOf(newElements, j));
+					size -= data.length - j;
+					return true;
+				}
+				return false;
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+#endif
+		
+		@Override
+		@Primitive
+		public void replaceAll(UnaryOperator<CLASS_TYPE> o) {
+#if PRIMITIVES
+			Objects.requireNonNull(o);
+#if TYPE_BYTE || TYPE_SHORT || TYPE_CHAR || TYPE_FLOAT
+			REPLACE(T -> OBJ_TO_KEY(o.apply(KEY_TO_OBJ(SanityChecks.SANITY_CAST(T)))));
+#else
+			REPLACE(T -> OBJ_TO_KEY(o.apply(KEY_TO_OBJ(T))));
+#endif
+#else
+			Objects.requireNonNull(o);
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newData = Arrays.copyOf(data, data.length);
+				for(int i = 0,m=size;i<m;i++)
+					newData[i+offset] = OBJ_TO_KEY(o.apply(KEY_TO_OBJ(newData[i+offset])));
+				setter.accept(newData);
+			}
+			finally {
+				lock.unlock();
+			}
+#endif
+		}
+		
+#if PRIMITIVES
+		@Override
+		public void REPLACE(JAVA_UNARY_OPERATOR o) {
+			Objects.requireNonNull(o);
+			ReentrantLock lock = this.lock;
+			lock.lock();
+			try {
+				KEY_TYPE[] data = getter.get();
+				KEY_TYPE[] newData = Arrays.copyOf(data, data.length);
+				for(int i = 0,m=size;i<m;i++)
+#if TYPE_BYTE || TYPE_SHORT || TYPE_CHAR || TYPE_FLOAT
+					newData[i+offset] = SanityChecks.SANITY_CAST(o.APPLY_CAST(newData[i+offset]));
+#else
+					newData[i+offset] = o.APPLY(newData[i+offset]);
+#endif
+				setter.accept(newData);
+			}
+			finally {
+				lock.unlock();
+			}
+		}
+		
+#endif		
 		@Override
 		public int size() {
 			return size;
@@ -1682,10 +2136,9 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		@Override
 		public void clear() {
 			if(size == 0) return;
-			ReentrantLock lock = list.lock;
 			lock.lock();
 			try {
-				list.removeElements(offset, offset+size);
+				list.removeElements(parentOffset, parentOffset+size);
 				size = 0;
 			}
 			finally {
@@ -1693,9 +2146,11 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 			}
 		}
 		
+#if SPLIT_ITERATOR_FEATURE
 		@Override
 		public SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 16464); }
 		
+#endif
 		@Override
 		public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index) {
 			if(index < 0 || index > size()) throw new IndexOutOfBoundsException();
@@ -1705,7 +2160,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		@Override
 		public LIST KEY_GENERIC_TYPE subList(int fromIndex, int toIndex) {
 			SanityChecks.checkArrayCapacity(size, fromIndex, toIndex-fromIndex);
-			return new COWSubListBRACES(list, offset, fromIndex, toIndex);
+			return new COWSubListBRACES(this, lock, setter, getter, offset, fromIndex, toIndex);
 		}
 		
 		protected void checkSubRange(int index) {
@@ -1773,7 +2228,7 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 		@Override
 		public int skip(int amount) {
 			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
-			int steps = Math.min(amount, (list.size() - 1) - index);
+			int steps = Math.min(amount, list.size() - index);
 			index += steps;
 			return steps;
 		}

src/builder/resources/speiger/assets/collections/templates/lists/ImmutableList.template

@@ -3,18 +3,40 @@ package speiger.src.collections.PACKAGE.lists;
 import java.util.Arrays;
 #if TYPE_OBJECT
 import java.util.Comparator;
+#else if !TYPE_BOOLEAN
+import java.util.stream.JAVA_STREAM;
+import java.util.stream.StreamSupport;
 #endif
 import java.util.Collection;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if PRIMITIVES
+import java.util.function.Supplier;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+
+import speiger.src.collections.PACKAGE.utils.COLLECTIONS;
+#endif
+#endif
 #if TYPE_OBJECT
 import java.util.function.BiFunction;
 import java.util.function.Consumer;
 #endif
 import java.util.function.Predicate;
 import java.util.function.UnaryOperator;
+#if !TYPE_OBJECT && JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 #if PRIMITIVES
+#if !JDK_FUNCTION
 import java.util.function.JAVA_PREDICATE;
+#endif
+
 import java.util.function.JAVA_UNARY_OPERATOR;
 #endif
 
@@ -22,19 +44,22 @@ import speiger.src.collections.PACKAGE.collections.COLLECTION;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
 #endif
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.objects.utils.ObjectArrays;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
-#if PRIMITIVES
-import java.util.stream.JAVA_STREAM;
-import java.util.stream.StreamSupport;
-#endif
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
 import speiger.src.collections.utils.SanityChecks;
 
 #if TYPE_OBJECT
@@ -111,6 +136,42 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 		data = Arrays.copyOfRange(a, offset, offset+length);
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ImmutableList
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, COLLECTION<T>, ImmutableObjectList<T>> toList() {
+		return Collector.of(COLLECTIONS::wrapper, COLLECTION::add, ImmutableObjectList::merge, E -> new IMMUTABLE_LIST<>(E.toArray((T[])new Object[E.size()])));
+	}
+
+	/**
+	 * Collects a Stream to a ImmutableList
+	 * @Type(T)
+	 * @return a list with the contents of the Stream
+	 */
+	public static <T> ImmutableObjectList KEY_GENERIC_TYPE toList(Stream<T> stream) {
+		return stream.collect(toList());
+	}
+	
+	private static <T> COLLECTION<T> merge(COLLECTION<T> a, COLLECTION<T> b) {
+		a.addAll(b);
+		return a;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ImmutableList
+	 * @return a list with the contents of the Stream
+	 */
+	public static IMMUTABLE_LIST toList(JAVA_STREAM stream) {
+		return new IMMUTABLE_LIST(stream.collect((Supplier<COLLECTION>)COLLECTIONS::wrapper, COLLECTION::add, COLLECTION::addAll).TO_ARRAY());
+	}
+	
+#endif
+#endif
 	@Override
 	public boolean add(KEY_TYPE e) { throw new UnsupportedOperationException(); }
 	@Override
@@ -129,7 +190,8 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	
 	@Override
 	public KEY_TYPE[] getElements(int from, KEY_TYPE[] a, int offset, int length) {
-		SanityChecks.checkArrayCapacity(data.length, offset, length);
+		SanityChecks.checkArrayCapacity(a.length, offset, length);
+		SanityChecks.checkArrayCapacity(data.length, from, length);
 		System.arraycopy(data, from, a, offset, length);
 		return a;
 	}
@@ -301,7 +363,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0,m=data.length;i<m;i++) {
-			if(filter.TEST_VALUE(data[i])) return true;
+			if(filter.test(data[i])) return true;
 		}
 		return false;
 	}
@@ -310,7 +372,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0,m=data.length;i<m;i++) {
-			if(filter.TEST_VALUE(data[i])) return false;
+			if(filter.test(data[i])) return false;
 		}
 		return true;
 	}
@@ -319,18 +381,18 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0,m=data.length;i<m;i++) {
-			if(!filter.TEST_VALUE(data[i])) return false;
+			if(!filter.test(data[i])) return false;
 		}
 		return true;
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0,m=data.length;i<m;i++) {
-			if(filter.TEST_VALUE(data[i])) return data[i];
+			if(filter.test(data[i])) return OPTIONAL.GET_OPTIONAL(data[i]);
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 #if !TYPE_OBJECT
@@ -357,7 +419,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -369,7 +431,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 			}
 			state = operator.APPLY_VALUE(state, data[i]);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
@@ -377,7 +439,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 		Objects.requireNonNull(filter);
 		int result = 0;
 		for(int i = 0,m=data.length;i<m;i++) {
-			if(filter.TEST_VALUE(data[i])) result++;
+			if(filter.test(data[i])) result++;
 		}
 		return result;
 	}
@@ -436,6 +498,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	@Override
 	@Primitive
 	public Object[] toArray() {
+		if(data.length == 0) return ObjectArrays.EMPTY_ARRAY;
 		Object[] obj = new Object[data.length];
 		for(int i = 0,m=data.length;i<m;i++)
 			obj[i] = KEY_TO_OBJ(data[i]);
@@ -487,7 +550,8 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 			throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + data.length);
 	}
 	
-#if PRIMITIVES
+#if SPLIT_ITERATOR_FEATURE
+#if PRIMITIVES && STREAM_FEATURE
 	/**
 	 * Returns a Java-Type-Specific Stream to reduce boxing/unboxing.
 	 * @return a Stream of the closest java type
@@ -505,6 +569,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	@Override
 	public SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createArraySplititerator(data, data.length, 16464); }
 	
+#endif
 	private class LIST_ITER implements LIST_ITERATOR KEY_GENERIC_TYPE {
 		int index;
 		
@@ -556,7 +621,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 		@Override
 		public int skip(int amount) {
 			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
-			int steps = Math.min(amount, (size() - 1) - index);
+			int steps = Math.min(amount, size() - index);
 			index += steps;
 			return steps;
 		}

src/builder/resources/speiger/assets/collections/templates/lists/LinkedList.template

@@ -1,7 +1,9 @@
 package speiger.src.collections.PACKAGE.lists;
 
 #if TYPE_OBJECT
+#if DEQUEUE_FEATURE
 import java.util.Comparator;
+#endif
 import java.util.function.BiFunction;
 #else if PRIMITIVES
 import java.nio.JAVA_BUFFER;
@@ -9,45 +11,76 @@ import java.nio.JAVA_BUFFER;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
+#endif
 import java.util.NoSuchElementException;
+#if SPLIT_ITERATOR_FEATURE
 import java.util.Spliterator;
 #if PRIMITIVES
 import java.util.Spliterator.JAVA_SPLIT_ITERATOR;
 #endif
 import java.util.function.Consumer;
+#endif
 import java.util.function.Predicate;
+#if TYPE_OBJECT
+import java.util.function.IntFunction;
+#endif
+#if !TYPE_OBJECT && JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 import java.util.function.UnaryOperator;
 #if PRIMITIVES
+#if !JDK_FUNCTION
 import java.util.function.JAVA_PREDICATE;
+#endif
 import java.util.function.JAVA_UNARY_OPERATOR;
 #endif
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.collections.STACK;
-#else
-import speiger.src.collections.ints.functions.function.Int2ObjectFunction;
 #endif
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if DEQUEUE_FEATURE
 import speiger.src.collections.PACKAGE.queues.PRIORITY_DEQUEUE;
+#endif
 #if !TYPE_OBJECT
+#if DEQUEUE_FEATURE
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
+#endif
+
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+#if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
+#endif
+import speiger.src.collections.objects.utils.ObjectArrays;
 #if TYPE_OBJECT
 import speiger.src.collections.utils.Stack;
-#else
-import speiger.src.collections.objects.utils.ObjectArrays;
 #endif
+#if SPLIT_ITERATOR_FEATURE
 #if PRIMITIVES
 import java.util.stream.JAVA_STREAM;
 import java.util.stream.StreamSupport;
 #endif
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
 import speiger.src.collections.utils.SanityChecks;
 
 /**
@@ -62,10 +95,10 @@ import speiger.src.collections.utils.SanityChecks;
  * 
  * @Type(T)
  */
-#if TYPE_OBJECT
-public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_GENERIC_TYPE, Stack KEY_GENERIC_TYPE
-#else
+#if DEQUEUE_FEATURE
 public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_GENERIC_TYPE, STACK KEY_GENERIC_TYPE
+#else
+public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE implements STACK KEY_GENERIC_TYPE
 #endif
 {
 	Entry KEY_GENERIC_TYPE first;
@@ -133,6 +166,42 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		for(int i = offset,m=offset+length;i<m;add(a[i++]));
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a LinkedList
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, ObjectLinkedList<T>, ObjectLinkedList<T>> toList() {
+		return Collector.of(ObjectLinkedList::new, ObjectLinkedList::add, ObjectLinkedList::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a LinkedList
+	 * @Type(T)
+	 * @return a list with the contents of the Stream
+	 */
+	public static <T> ObjectLinkedList KEY_GENERIC_TYPE toList(Stream<T> stream) {
+		return stream.collect(ObjectLinkedList::new, ObjectLinkedList::add, ObjectLinkedList::merge);
+	}
+	
+	private ObjectLinkedList<T> merge(ObjectLinkedList<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a LinkedList
+	 * @return a list with the contents of the Stream
+	 */
+	public static LINKED_LIST toList(JAVA_STREAM stream) {
+		return stream.collect(LINKED_LIST::new, LINKED_LIST::add, LINKED_LIST::addAll);
+	}
+	
+#endif
+#endif
 	@Override
 	public boolean add(KEY_TYPE e) {
 		add(size(), e);
@@ -183,36 +252,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	
 	@Override
 	public boolean addAll(int index, LIST KEY_GENERIC_TYPE c) {
-		int length = c.size();
-		if(length == 0) return false;
-		checkAddRange(index);
-		Entry KEY_GENERIC_TYPE next;
-		Entry KEY_GENERIC_TYPE prev;
-		if(index == size) {
-			prev = last;
-			next = null;
-		}
-		else if(index == 0) {
-			next = first;
-			prev = null;
-		}
-		else {
-			next = getNode(index);
-			prev = next.prev;
-		}
-		for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();) {
-			Entry KEY_GENERIC_TYPE entry = new EntryBRACES(iter.NEXT(), prev, null);
-			if(prev == null) first = entry;
-			else prev.next = entry;
-			prev = entry;
-		}
-		if(next == null) last = prev;
-		else {
-			prev.next = next;
-			next.prev = prev;
-		}
-		size += length;
-		return true;
+		return addAll(index, (COLLECTION KEY_GENERIC_TYPE)c); //
 	}
 	
 	@Override
@@ -251,6 +291,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return true;
 	}
 	
+#if DEQUEUE_FEATURE
 	@Override
 	public void enqueue(KEY_TYPE e) {
 		add(e);
@@ -261,6 +302,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		add(0, e);
 	}
 	
+#endif
 	@Override
 	public void push(KEY_TYPE e) {
 		add(e);
@@ -320,18 +362,41 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return a;
 	}
 	
+#if DEQUEUE_FEATURE
 	@Override
 	public KEY_TYPE first() {
-		if(first == null) throw new IllegalStateException();
-		return first.value;
+		return GET_FIRST_KEY();
 	}
 	
 	@Override
 	public KEY_TYPE last() {
-		if(last == null) throw new IllegalStateException();
+		return GET_LAST_KEY();
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE GET_FIRST_KEY() {
+		if(first == null) throw new NoSuchElementException();
+		return first.value;
+	}
+	
+	@Override
+	public KEY_TYPE GET_LAST_KEY() {
+		if(last == null) throw new NoSuchElementException();
 		return last.value;
 	}
 	
+	@Override
+	public KEY_TYPE REMOVE_FIRST_KEY() {
+		if(first == null) throw new NoSuchElementException();
+		return unlinkFirst(first);
+	}
+	
+	@Override
+	public KEY_TYPE REMOVE_LAST_KEY() {
+		return pop();
+	}
+	
 	@Override
 	public KEY_TYPE peek(int index) {
 		return GET_KEY((size() - 1) - index);
@@ -402,6 +467,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return new ListIter(getNode(index), index);
 	}
 
+#if SPLIT_ITERATOR_FEATURE
 #if PRIMITIVES
 	/**
 	 * Returns a Java-Type-Specific Stream to reduce boxing/unboxing.
@@ -422,6 +488,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return new TypeSplitIteratorBRACES(this, first, 0); }
 	
+#endif
 	@Override
 	public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
 		Objects.requireNonNull(action);
@@ -430,6 +497,14 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		}
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		int index = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next)
+			action.accept(index++, entry.value);
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -441,7 +516,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
-			if(filter.TEST_VALUE(entry.value)) return true;
+			if(filter.test(entry.value)) return true;
 		}
 		return false;
 	}
@@ -450,7 +525,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
-			if(filter.TEST_VALUE(entry.value)) return false;
+			if(filter.test(entry.value)) return false;
 		}
 		return true;
 	}
@@ -459,18 +534,18 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
-			if(!filter.TEST_VALUE(entry.value)) return false;
+			if(!filter.test(entry.value)) return false;
 		}
 		return true;
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
-			if(filter.TEST_VALUE(entry.value)) return entry.value;
+			if(filter.test(entry.value)) return OPTIONAL.GET_OPTIONAL(entry.value);
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 #if !TYPE_OBJECT
@@ -497,7 +572,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -509,7 +584,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 			}
 			state = operator.APPLY_VALUE(state, entry.value);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
@@ -517,7 +592,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		Objects.requireNonNull(filter);
 		int result = 0;
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
-			if(filter.TEST_VALUE(entry.value)) result++;
+			if(filter.test(entry.value)) result++;
 		}
 		return result;
 	}
@@ -554,6 +629,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	}
 	
 #endif
+#if DEQUEUE_FEATURE
 	@Override
 	public void onChanged() {}
 	@Override
@@ -561,31 +637,30 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	
 	@Override
 	public KEY_TYPE dequeue() {
-		if(first == null) throw new IllegalStateException();
+		if(first == null) throw new NoSuchElementException();
 		return unlinkFirst(first);
 	}
 	
 	@Override
 	public KEY_TYPE dequeueLast() {
-		if(last == null) throw new IllegalStateException();
+		return pop();
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE pop() {
+		if(last == null) throw new NoSuchElementException();
 		return unlinkLast(last);
 	}
 	
-	@Override
-	public KEY_TYPE pop() {
-		return dequeueLast();
-	}
-	
+#if DEQUEUE_FEATURE
 	@Override
 	public boolean removeFirst(KEY_TYPE e) {
-		if(size == 0) return false;
-		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
-			if(KEY_EQUALS(entry.value, e)) {
-				unlink(entry);
-				return true;
-			}
-		}
-		return false;
+#if TYPE_OBJECT
+		return remove(e);
+#else
+		return REMOVE_KEY(e);
+#endif
 	}
 	
 	@Override
@@ -600,6 +675,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return false;
 	}
 	
+#endif
 	@Override
 	public KEY_TYPE swapRemove(int index) {
 		checkRange(index);
@@ -625,6 +701,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 			temp.next = before.next;
 			temp.prev = before;
 			before.next = temp;
+			temp.next.prev = temp;
 		}
 		return result;
 	}
@@ -657,6 +734,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 					temp.next = before.next;
 					temp.prev = before;
 					before.next = temp;
+					temp.next.prev = temp;
 				}
 				return true;
 			}
@@ -680,7 +758,14 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 #else
 	@Override
 	public boolean REMOVE_KEY(KEY_TYPE e) {
-		return removeFirst(e);
+		if(size == 0) return false;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
+			if(KEY_EQUALS(entry.value, e)) {
+				unlink(entry);
+				return true;
+			}
+		}
+		return false;
 	}
 	
 #endif
@@ -707,7 +792,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 			}
 			return;
 		}
-		Entry KEY_GENERIC_TYPE entry = getNode(to);
+		Entry KEY_GENERIC_TYPE entry = getNode(to-1);
 		while(length > 0) {
 			Entry KEY_GENERIC_TYPE prev = entry.prev;
 			unlink(entry);
@@ -733,7 +818,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 			}
 			return a;
 		}
-		Entry KEY_GENERIC_TYPE entry = getNode(to);
+		Entry KEY_GENERIC_TYPE entry = getNode(to-1);
 		for(int i = length-1;length > 0;i--, length--) {
 			Entry KEY_GENERIC_TYPE prev = entry.prev;
 			a[i] = (K)unlink(entry);
@@ -759,7 +844,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 			}
 			return d;
 		}
-		Entry KEY_GENERIC_TYPE entry = getNode(to);
+		Entry KEY_GENERIC_TYPE entry = getNode(to-1);
 		for(int i = length-1;length > 0;i--, length--) {
 			Entry KEY_GENERIC_TYPE prev = entry.prev;
 			d[i] = unlink(entry);
@@ -958,6 +1043,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 #endif
 	@Override
 	public Object[] toArray() {
+		if(size == 0) return ObjectArrays.EMPTY_ARRAY;
 		Object[] obj = new Object[size];
 		int i = 0;
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
@@ -992,7 +1078,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	
 #else
 	@Override
-	public T[] toArray(Int2ObjectFunction<T[]> action) {
+	public <E> E[] toArray(IntFunction<E[]> action) {
 		return super.toArray(action);
 	}
 	
@@ -1135,12 +1221,16 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		Entry KEY_GENERIC_TYPE prev;
 		Entry KEY_GENERIC_TYPE next;
 		
-		public Entry(KEY_TYPE value, Entry KEY_GENERIC_TYPE prev, Entry KEY_GENERIC_TYPE next)
-		{
+		public Entry(KEY_TYPE value, Entry KEY_GENERIC_TYPE prev, Entry KEY_GENERIC_TYPE next) {
 			this.value = value;
 			this.prev = prev;
 			this.next = next;
 		}
+		
+		@Override
+		public String toString() {
+			return KEY_TO_STRING(value);
+		}
 	}
 	
 	private class ListIter implements LIST_ITERATOR KEY_GENERIC_TYPE 
@@ -1216,6 +1306,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		}
 	}
 	
+#if SPLIT_ITERATOR_FEATURE
 	private static class TypeSplitIterator KEY_GENERIC_TYPE implements SPLIT_ITERATOR KEY_GENERIC_TYPE 
 	{
 		static final int BATCH_UNIT = 1 << 10;
@@ -1360,4 +1451,5 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		}
 	}
 #endif
+#endif
 }

src/builder/resources/speiger/assets/collections/templates/lists/List.template

@@ -5,23 +5,34 @@ import java.nio.JAVA_BUFFER;
 #endif
 import java.util.List;
 #if !TYPE_OBJECT && !TYPE_BOOLEAN
-import java.util.Objects;
 import java.util.function.JAVA_UNARY_OPERATOR;
-import java.util.function.UnaryOperator;
-#else if TYPE_OBJECT
+#endif
+
 import java.util.Objects;
+import java.util.Comparator;
+#if !TYPE_BOOLEAN
 import java.util.function.UnaryOperator;
 #endif
-import java.util.Comparator;
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
+import speiger.src.collections.PACKAGE.collections.ORDERED_COLLECTION;
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
+#endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
+#if LISTS_FEATURE
 import speiger.src.collections.PACKAGE.utils.LISTS;
+#endif
+#if INT_LIST_MODULE && !TYPE_INT
+import speiger.src.collections.ints.lists.IntList;
+#endif
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
 #if TYPE_BYTE || TYPE_SHORT || TYPE_CHAR || TYPE_FLOAT
 import speiger.src.collections.utils.SanityChecks;
 #endif
@@ -30,7 +41,7 @@ import speiger.src.collections.utils.SanityChecks;
  * A Type Specific List interface that reduces boxing/unboxing and adds a couple extra quality of life features
  * @Type(T)
  */
-public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List<CLASS_TYPE>
+public interface LIST KEY_GENERIC_TYPE extends ORDERED_COLLECTION KEY_GENERIC_TYPE, List<CLASS_TYPE>
 {
 #if !TYPE_OBJECT
 	/**
@@ -95,6 +106,64 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	 */
 	public boolean addAll(int index, LIST KEY_GENERIC_TYPE c);
 	
+	/**
+	 * A method to add an element to the start of a list
+	 * @param e that should be added at the start.
+	 */
+	@Override
+	public default void addFirst(KEY_TYPE e) { 
+		add(0, e);
+	}
+	
+	/**
+	 * A method to add an element to the end of a list
+	 * @param e that should be added at the end.
+	 */
+	@Override
+	public default void addLast(KEY_TYPE e) {
+		add(e);
+	}
+	
+	/**
+	 * Helper method that returns the first element of a List.
+	 * This function was introduced due to how annoying it is to get/remove the last element of a list.
+	 * This simplifies this process a bit.
+	 * @return first element of the list
+	 */
+	public default KEY_TYPE GET_FIRST_KEY() {
+		return GET_KEY(0);
+	}
+	
+	/**
+	 * Helper method that returns the last element of a List.
+	 * This function was introduced due to how annoying it is to get/remove the last element of a list.
+	 * This simplifies this process a bit.
+	 * @return last element of the list
+	 */
+	public default KEY_TYPE GET_LAST_KEY() {
+		return GET_KEY(size() - 1);
+	}
+	
+	/**
+	 * Helper method that removes and returns the first element of a List.
+	 * This function was introduced due to how annoying it is to get/remove the last element of a list.
+	 * This simplifies this process a bit.
+	 * @return first element of the list and removes it
+	 */
+	public default KEY_TYPE REMOVE_FIRST_KEY() {
+		return REMOVE(0);
+	}
+	
+	/**
+	 * Helper method that removes and returns the last element of a List.
+	 * This function was introduced due to how annoying it is to get/remove the last element of a list.
+	 * This simplifies this process a bit.
+	 * @return last element of the list and removes it
+	 */
+	public default KEY_TYPE REMOVE_LAST_KEY() {
+		return REMOVE(size() - 1);
+	}
+	
 #if !TYPE_OBJECT
 	/**
 	 * A Type-Specific get function to reduce (un)boxing
@@ -358,6 +427,16 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	}
 	
 #endif
+	/**
+	 * A Indexed forEach implementation that allows you to keep track of how many elements were already iterated over.
+	 * @param action The action to be performed for each element
+	 * @throws java.lang.NullPointerException if the specified action is null
+	 */
+	@Override
+	public default void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		for(int i = 0,m=size();i<m;action.accept(i, GET_KEY(i++)));
+	}
 	/**
 	 * A Type-Specific Iterator of listIterator
 	 * @see java.util.List#listIterator
@@ -372,6 +451,26 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	@Override
 	public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index);
 	
+	/**
+	 * Creates a Iterator that follows the indecies provided.<br>
+	 * For example if the Lists Contents is:<br> -1, 0 1 <br>and the indecies are: <br>0, 1, 2, 2, 1, 0<br>
+	 * then the iterator will return the following values: <br>-1, 0, 1, 1, 0, -1
+	 * @param indecies that should be used for the iteration.
+	 * @return a custom indexed iterator
+	 */
+	public LIST_ITERATOR KEY_GENERIC_TYPE indexedIterator(int...indecies);
+	
+#if INT_LIST_MODULE
+	/**
+	 * Creates a Iterator that follows the indecies provided.<br>
+	 * For example if the Lists Contents is:<br> -1, 0 1 <br>and the indecies are: <br>0, 1, 2, 2, 1, 0<br>
+	 * then the iterator will return the following values: <br>-1, 0, 1, 1, 0, -1
+	 * @param indecies that should be used for the iteration.
+	 * @return a custom indexed iterator
+	 */
+	public LIST_ITERATOR KEY_GENERIC_TYPE indexedIterator(IntList indecies);
+	
+#endif
 	/**
 	 * A Type-Specific List of subList
 	 * @see java.util.List#subList(int, int)
@@ -379,6 +478,13 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	@Override
 	public LIST KEY_GENERIC_TYPE subList(int from, int to);
 	
+	/**
+	 * A Type-Specific List Helper that shows all elements in reverse.
+	 * @return a list wrapper that has all elements reversed!
+	 */
+	public LIST KEY_GENERIC_TYPE reversed();
+	
+#if LISTS_FEATURE
 	/**
 	 * Creates a Wrapped List that is Synchronized
 	 * @return a new List that is synchronized
@@ -401,6 +507,7 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	 */
 	public default LIST KEY_GENERIC_TYPE unmodifiable() { return LISTS.unmodifiable(this); }
 	
+#endif
 	/**
 	 * A function to ensure the elements are within the requested size.
 	 * If smaller then the stored elements they get removed as needed.
@@ -420,9 +527,56 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	@Override
 	@Deprecated
 	public default boolean add(CLASS_TYPE e) {
-		return COLLECTION.super.add(e);
+		return ORDERED_COLLECTION.super.add(e);
 	}
 
+#if JAVA_VERSION>=21
+#if !TYPE_OBJECT
+	/** {@inheritDoc}
+	 * <p>This default implementation delegates to the corresponding type-specific function.
+	 * @deprecated Please use the corresponding type-specific function instead. 
+	 */
+	@Override
+	@Deprecated
+	default void addFirst(CLASS_TYPE e) {
+		addFirst(OBJ_TO_KEY(e));
+	}
+	/** {@inheritDoc}
+	 * <p>This default implementation delegates to the corresponding type-specific function.
+	 * @deprecated Please use the corresponding type-specific function instead. 
+	 */
+	@Override
+	@Deprecated
+	default void addLast(CLASS_TYPE e) {
+		addLast(OBJ_TO_KEY(e));
+	}
+	
+#endif
+	@Override
+	@Deprecated
+	default CLASS_TYPE getFirst() {
+		return KEY_TO_OBJ(GET_FIRST_KEY());
+	}
+	
+	@Override
+	@Deprecated
+	default CLASS_TYPE getLast() {
+		return KEY_TO_OBJ(GET_LAST_KEY());
+	}
+	
+	@Override
+	@Deprecated
+	default CLASS_TYPE removeFirst() {
+		return KEY_TO_OBJ(REMOVE_FIRST_KEY());
+	}
+	
+	@Override
+	@Deprecated
+	default CLASS_TYPE removeLast() {
+		return KEY_TO_OBJ(REMOVE_LAST_KEY());
+	}
+	
+#endif
 	/** {@inheritDoc}
 	 * <p>This default implementation delegates to the corresponding type-specific function.
 	 * @deprecated Please use the corresponding type-specific function instead. 
@@ -470,7 +624,7 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	@Override
 	@Deprecated
 	public default boolean contains(Object o) {
-		return COLLECTION.super.contains(o);
+		return ORDERED_COLLECTION.super.contains(o);
 	}
 	
 	/** {@inheritDoc}
@@ -480,7 +634,7 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	@Override
 	@Deprecated
 	public default boolean remove(Object o) {
-		return COLLECTION.super.remove(o);
+		return ORDERED_COLLECTION.super.remove(o);
 	}
 	
 	/** {@inheritDoc}
@@ -510,10 +664,12 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	}
 #endif
 #endif
+#if SPLIT_ITERATOR_FEATURE
 	/**
 	 * A Type Specific Type Splititerator to reduce boxing/unboxing
 	 * @return type specific splititerator
 	 */
 	@Override
 	default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
+#endif
 }

src/builder/resources/speiger/assets/collections/templates/maps/abstracts/AbstractMap.template

@@ -3,15 +3,31 @@ package speiger.src.collections.PACKAGE.maps.abstracts;
 import java.util.AbstractMap;
 import java.util.Map;
 import java.util.Objects;
+#if VALUE_BOOLEAN && JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
+#if !VALUE_BOOLEAN || !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
+#if ORDERED_MAP_FEATURE
+import speiger.src.collections.PACKAGE.maps.interfaces.ORDERED_MAP;
+import speiger.src.collections.PACKAGE.sets.ORDERED_SET;
+import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ORDERED_COLLECTION;
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.sets.AbstractObjectSet;
+import speiger.src.collections.objects.sets.ObjectOrderedSet;
+#endif
+#endif
 import speiger.src.collections.PACKAGE.sets.ABSTRACT_SET;
 import speiger.src.collections.PACKAGE.sets.SET;
+#if MAPS_FEATURE
 import speiger.src.collections.PACKAGE.utils.maps.MAPS;
+#endif
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
 #if !SAME_TYPE
@@ -19,6 +35,7 @@ import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ITERATOR;
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
 #endif
 import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_SUPPLIER;
+import speiger.src.collections.objects.collections.ObjectIterable;
 #if !TYPE_OBJECT && !VALUE_OBJECT
 import speiger.src.collections.objects.collections.ObjectIterator;
 #endif
@@ -34,7 +51,7 @@ import speiger.src.collections.utils.SanityChecks;
  */
 public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CLASS_TYPE, CLASS_VALUE_TYPE> implements MAP KEY_VALUE_GENERIC_TYPE
 {
-	protected VALUE_TYPE defaultReturnValue = EMPTY_VALUE;
+	protected VALUE_TYPE defaultReturnValue = INVALID_VALUE;
 	
 	@Override
 	public VALUE_TYPE getDefaultReturnValue() {
@@ -47,6 +64,22 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 		return this;
 	}
 	
+	protected ObjectIterable<MAP.Entry KEY_VALUE_GENERIC_TYPE> getFastIterable(MAP KEY_VALUE_GENERIC_TYPE map) {
+#if MAPS_FEATURE
+		return MAPS.fastIterable(map);
+#else
+		return map.ENTRY_SET();
+#endif
+	}
+	
+	protected ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> getFastIterator(MAP KEY_VALUE_GENERIC_TYPE map) {
+#if MAPS_FEATURE
+		return MAPS.fastIterator(map);
+#else
+		return map.ENTRY_SET().iterator();
+#endif
+	}
+	
 	@Override
 	public MAP KEY_VALUE_GENERIC_TYPE copy() { 
 		throw new UnsupportedOperationException();
@@ -63,14 +96,14 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 #if VALUE_PRIMITIVES
 	@Override
 	public void addToAll(MAP KEY_VALUE_GENERIC_TYPE m) {
-		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m))
+		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : getFastIterable(m))
 			addTo(entry.ENTRY_KEY(), entry.ENTRY_VALUE());
 	}
 	
 #endif
 	@Override
 	public void putAll(MAP KEY_VALUE_GENERIC_TYPE m) {
-		for(ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = MAPS.fastIterator(m);iter.hasNext();) {
+		for(ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = getFastIterator(m);iter.hasNext();) {
 			MAP.Entry KEY_VALUE_GENERIC_TYPE entry = iter.next();
 			put(entry.ENTRY_KEY(), entry.ENTRY_VALUE());
 		}
@@ -95,13 +128,13 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 	public void putAll(CLASS_TYPE[] keys, CLASS_VALUE_TYPE[] values, int offset, int size) {
 		SanityChecks.checkArrayCapacity(keys.length, offset, size);
 		SanityChecks.checkArrayCapacity(values.length, offset, size);
-		for(int i = 0;i<size;i++) put(keys[i], values[i]);		
+		for(int i = 0;i<size;i++) put(OBJ_TO_KEY(keys[i]), OBJ_TO_VALUE(values[i]));		
 	}
 	
 #endif
 	@Override
 	public void putAllIfAbsent(MAP KEY_VALUE_GENERIC_TYPE m) {
-		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m))
+		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : getFastIterable(m))
 			putIfAbsent(entry.ENTRY_KEY(), entry.ENTRY_VALUE());
 	}
 	
@@ -161,14 +194,14 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 	
 	@Override
 	public void REPLACE_VALUES(MAP KEY_VALUE_GENERIC_TYPE m) {
-		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m))
+		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : getFastIterable(m))
 			replace(entry.ENTRY_KEY(), entry.ENTRY_VALUE());
 	}
 	
 	@Override
 	public void REPLACE_VALUES(UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
-		for(ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = MAPS.fastIterator(this);iter.hasNext();) {
+		for(ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = getFastIterator(this);iter.hasNext();) {
 			MAP.Entry KEY_VALUE_GENERIC_TYPE entry = iter.next();
 			entry.setValue(mappingFunction.APPLY_VALUE(entry.ENTRY_KEY(), entry.ENTRY_VALUE()));
 		}
@@ -177,6 +210,96 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 	@Override
 	public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
+#if !VALUE_OBJECT
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, GET_VALUE(key));
+#else
+		VALUE_TYPE value = GET_VALUE(key);
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, value);
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			if(VALUE_EQUALS_NOT(value, getDefaultReturnValue()) || containsKey(key)) {
+				remove(key);
+				return getDefaultReturnValue();
+			}
+			return getDefaultReturnValue();
+		}
+#endif
+		put(key, newValue);
+		return newValue;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if VALUE_OBJECT
+		VALUE_TYPE value;
+		if((value = GET_VALUE(key)) == getDefaultReturnValue() || !containsKey(key)) {
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
+			if(VALUE_EQUALS_NOT(newValue, getDefaultReturnValue())) {
+				put(key, newValue);
+				return newValue;
+			}
+		}
+		return value;
+#else
+		if(!containsKey(key)) {
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
+			put(key, newValue);
+			return newValue;
+		}
+		return get(key);
+#endif
+	}
+	
+	@Override
+	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+		Objects.requireNonNull(valueProvider);
+#if VALUE_OBJECT
+		VALUE_TYPE value;
+		if((value = GET_VALUE(key)) == getDefaultReturnValue() || !containsKey(key)) {
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
+			if(VALUE_EQUALS_NOT(newValue, getDefaultReturnValue())) {
+				put(key, newValue);
+				return newValue;
+			}
+		}
+		return value;
+#else
+		if(!containsKey(key)) {
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
+			put(key, newValue);
+			return newValue;
+		}
+		return get(key);
+#endif
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if VALUE_OBJECT
+		VALUE_TYPE value;
+		if(VALUE_EQUALS_NOT((value = GET_VALUE(key)), getDefaultReturnValue()) || containsKey(key)) {
+			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, value);
+			if(VALUE_EQUALS_NOT(newValue, getDefaultReturnValue())) {
+				put(key, newValue);
+				return newValue;
+			}
+			remove(key);
+		}
+#else
+		if(containsKey(key)) {
+			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, GET_VALUE(key));
+			put(key, newValue);
+			return newValue;
+		}
+#endif
+		return getDefaultReturnValue();
+	}
+	
+#if !VALUE_OBJECT
+	@Override
+	public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
 		VALUE_TYPE value = GET_VALUE(key);
 		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, value);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
@@ -191,11 +314,11 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 	}
 	
 	@Override
-	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+	public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 		VALUE_TYPE value;
 		if((value = GET_VALUE(key)) == getDefaultReturnValue() || !containsKey(key)) {
-			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS_NOT(newValue, getDefaultReturnValue())) {
 				put(key, newValue);
 				return newValue;
@@ -205,11 +328,11 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 	}
 	
 	@Override
-	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+	public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
 		Objects.requireNonNull(valueProvider);
 		VALUE_TYPE value;
 		if((value = GET_VALUE(key)) == getDefaultReturnValue() || !containsKey(key)) {
-			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS_NOT(newValue, getDefaultReturnValue())) {
 				put(key, newValue);
 				return newValue;
@@ -219,7 +342,7 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 	}
 	
 	@Override
-	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+	public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 		VALUE_TYPE value;
 		if(VALUE_EQUALS_NOT((value = GET_VALUE(key)), getDefaultReturnValue()) || containsKey(key)) {
@@ -233,6 +356,7 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 		return getDefaultReturnValue();
 	}
 	
+#endif
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
@@ -246,7 +370,7 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 	@Override
 	public void BULK_MERGE(MAP KEY_VALUE_GENERIC_TYPE m, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
-		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
+		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : getFastIterable(m)) {
 			KEY_TYPE key = entry.ENTRY_KEY();
 			VALUE_TYPE oldValue = GET_VALUE(key);
 			VALUE_TYPE newValue = VALUE_EQUALS(oldValue, getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(oldValue, entry.ENTRY_VALUE());
@@ -285,10 +409,20 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 	}
 	
 #endif
+	
+	@Override
+	public CLASS_VALUE_TYPE remove(Object key) {
+#if TYPE_OBJECT
+		return VALUE_TO_OBJ(REMOVE_VALUE((CLASS_TYPE)key));
+#else
+		return key instanceof CLASS_TYPE ? VALUE_TO_OBJ(REMOVE_VALUE(CLASS_TO_KEY(key))) : VALUE_TO_OBJ(getDefaultReturnValue());
+#endif
+	}
+	
 	@Override
 	public void forEach(BI_CONSUMER KEY_VALUE_GENERIC_TYPE action) {
 		Objects.requireNonNull(action);
-		for(ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = MAPS.fastIterator(this);iter.hasNext();) {
+		for(ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = getFastIterator(this);iter.hasNext();) {
 			MAP.Entry KEY_VALUE_GENERIC_TYPE entry = iter.next();
 			action.accept(entry.ENTRY_KEY(), entry.ENTRY_VALUE());
 		}
@@ -306,7 +440,11 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 #else
 			@Override
 			public boolean remove(Object o) {
-				return VALUE_EQUALS_NOT(ABSTRACT_MAP.this.remove(o), getDefaultReturnValue());
+				if(ABSTRACT_MAP.this.containsKey(o)) {
+					ABSTRACT_MAP.this.remove(o);
+					return true;
+				}
+				return false;
 			}
 			
 #endif
@@ -318,7 +456,7 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 			@Override
 			public ITERATOR KEY_GENERIC_TYPE iterator() {
 				return new ITERATOR KEY_GENERIC_TYPE() {
-					ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = MAPS.fastIterator(ABSTRACT_MAP.this);
+					ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = getFastIterator(ABSTRACT_MAP.this);
 					@Override
 					public boolean hasNext() {
 						return iter.hasNext();
@@ -369,7 +507,7 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 			@Override
 			public VALUE_ITERATOR VALUE_GENERIC_TYPE iterator() {
 				return new VALUE_ITERATOR VALUE_GENERIC_TYPE() {
-					ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = MAPS.fastIterator(ABSTRACT_MAP.this);
+					ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = getFastIterator(ABSTRACT_MAP.this);
 					@Override
 					public boolean hasNext() {
 						return iter.hasNext();
@@ -409,11 +547,137 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 	@Override
 	public int hashCode() {
 		int hash = 0;
-		ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = MAPS.fastIterator(this);
+		ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iter = getFastIterator(this);
 		while(iter.hasNext()) hash += iter.next().hashCode();
 		return hash;
 	}
 	
+	public static class REVERSED_ORDERED_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE implements ORDERED_MAP KEY_VALUE_GENERIC_TYPE {
+		ORDERED_MAP KEY_VALUE_GENERIC_TYPE map;
+		
+		public REVERSED_ORDERED_MAP(ORDERED_MAP KEY_VALUE_GENERIC_TYPE map) {
+			this.map = map;
+		}
+		@Override
+		public ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE setDefaultReturnValue(VALUE_TYPE v) {
+			map.setDefaultReturnValue(v);
+			return this;
+		}
+		@Override
+		public VALUE_TYPE getDefaultReturnValue() { return map.getDefaultReturnValue(); }
+		@Override
+		public ORDERED_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE put(KEY_TYPE key, VALUE_TYPE value) { return map.put(key, value); }
+		@Override
+		public VALUE_TYPE putIfAbsent(KEY_TYPE key, VALUE_TYPE value) { return map.putIfAbsent(key, value); }
+#if VALUE_PRIMITIVES
+		@Override
+		public VALUE_TYPE addTo(KEY_TYPE key, VALUE_TYPE value) { return map.addTo(key, value); }
+		@Override
+		public VALUE_TYPE subFrom(KEY_TYPE key, VALUE_TYPE value) { return map.subFrom(key, value); }
+#endif
+		@Override
+		public VALUE_TYPE REMOVE_VALUE(KEY_TYPE key) { return map.REMOVE_VALUE(key); }
+#if !TYPE_OBJECT || !VALUE_OBJECT
+		@Override
+		public boolean remove(KEY_TYPE key, VALUE_TYPE value) { return map.remove(key, value); }
+#endif
+		@Override
+		public VALUE_TYPE REMOVE_VALUEOrDefault(KEY_TYPE key, VALUE_TYPE defaultValue) { return map.REMOVE_VALUEOrDefault(key, defaultValue); }
+		@Override
+#if TYPE_OBJECT
+		public boolean containsKey(Object key) { return map.containsKey(key); }
+#else
+		public boolean containsKey(KEY_TYPE key) { return map.containsKey(key); }
+#endif
+		@Override
+#if VALUE_OBJECT
+		public boolean containsValue(Object value) { return map.containsValue(value); }
+#else
+		public boolean containsValue(VALUE_TYPE value) { return map.containsValue(value); }
+#endif
+		@Override
+		public boolean replace(KEY_TYPE key, VALUE_TYPE oldValue, VALUE_TYPE newValue) { return map.replace(key, oldValue, newValue); }
+		@Override
+		public VALUE_TYPE replace(KEY_TYPE key, VALUE_TYPE value) { return map.replace(key, value); }
+		@Override
+		public void REPLACE_VALUES(MAP KEY_VALUE_GENERIC_TYPE m) { map.REPLACE_VALUES(m); }
+		@Override
+		public void REPLACE_VALUES(UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { map.REPLACE_VALUES(mappingFunction); }
+		@Override
+		public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { return map.COMPUTE(key, mappingFunction); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { return map.COMPUTE_IF_ABSENT(key, mappingFunction); }
+		@Override
+		public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { return map.SUPPLY_IF_ABSENT(key, valueProvider); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { return map.COMPUTE_IF_PRESENT(key, mappingFunction); }
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { return map.COMPUTENonDefault(key, mappingFunction); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { return map.COMPUTE_IF_ABSENTNonDefault(key, mappingFunction); }
+		@Override
+		public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { return map.SUPPLY_IF_ABSENTNonDefault(key, valueProvider); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { return map.COMPUTE_IF_PRESENTNonDefault(key, mappingFunction); }
+#endif
+		@Override
+		public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) { return map.MERGE(key, value, mappingFunction); }
+#if !TYPE_OBJECT || !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE getOrDefault(KEY_TYPE key, VALUE_TYPE defaultValue) { return map.getOrDefault(key, defaultValue); }
+#endif
+		@Override
+		public VALUE_TYPE GET_VALUE(KEY_TYPE key) { return map.GET_VALUE(key); }
+		@Override
+		public VALUE_TYPE putAndMoveToFirst(KEY_TYPE key, VALUE_TYPE value) { return map.putAndMoveToLast(key, value); }
+		@Override
+		public VALUE_TYPE putAndMoveToLast(KEY_TYPE key, VALUE_TYPE value) { return map.putAndMoveToFirst(key, value); }
+		@Override
+		public VALUE_TYPE putFirst(KEY_TYPE key, VALUE_TYPE value) { return map.putLast(key, value); }
+		@Override
+		public VALUE_TYPE putLast(KEY_TYPE key, VALUE_TYPE value) { return map.putFirst(key, value); }
+		@Override
+		public boolean moveToFirst(KEY_TYPE key) { return map.moveToLast(key); }
+		@Override
+		public boolean moveToLast(KEY_TYPE key) { return map.moveToFirst(key); }
+		@Override
+		public VALUE_TYPE getAndMoveToFirst(KEY_TYPE key) { return map.getAndMoveToLast(key); }
+		@Override
+		public VALUE_TYPE getAndMoveToLast(KEY_TYPE key) { return map.getAndMoveToFirst(key); }
+		@Override
+		public KEY_TYPE FIRST_ENTRY_KEY() { return map.LAST_ENTRY_KEY(); }
+		@Override
+		public KEY_TYPE POLL_FIRST_ENTRY_KEY() { return map.POLL_LAST_ENTRY_KEY(); }
+		@Override
+		public KEY_TYPE LAST_ENTRY_KEY() { return map.FIRST_ENTRY_KEY(); }
+		@Override
+		public KEY_TYPE POLL_LAST_ENTRY_KEY() { return map.POLL_FIRST_ENTRY_KEY(); }
+		@Override
+		public VALUE_TYPE FIRST_ENTRY_VALUE() { return map.LAST_ENTRY_VALUE(); }
+		@Override
+		public VALUE_TYPE LAST_ENTRY_VALUE() { return map.FIRST_ENTRY_VALUE(); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() { return map.lastEntry(); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() { return map.firstEntry(); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirstEntry() { return map.pollLastEntry(); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry() { return map.pollFirstEntry(); }
+		@Override
+		public ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() { return new AbstractObjectSet.ReversedObjectOrderedSet<>(map.ENTRY_SET()); }
+		@Override
+		public ORDERED_SET KEY_GENERIC_TYPE keySet() { return new ABSTRACT_SET.REVERSED_ORDERED_SETBRACES(map.keySet()); }
+		@Override
+		public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE values() { return map.values().reversed(); }
+		@Override
+		public ORDERED_MAP KEY_VALUE_GENERIC_TYPE reversed() { return map; }
+	}
+
+	
 	/**
 	 * A Simple Type Specific Entry class to reduce boxing/unboxing
 	 * @Type(T)

src/builder/resources/speiger/assets/collections/templates/maps/impl/concurrent/ConcurrentOpenHashMap.template

@@ -4,10 +4,19 @@ import java.util.Arrays;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+import java.util.Optional;
 import java.util.concurrent.locks.StampedLock;
 import java.util.function.Consumer;
-
+import java.util.function.Predicate;
 import java.util.function.BiFunction;
+#if !TYPE_OBJECT && JDK_TYPE
+import java.util.function.PREDICATE;
+import java.util.OPTIONAL;
+#endif
+#if !SAME_TYPE && JDK_VALUE && !VALUE_OBJECT
+import java.util.function.VALUE_PREDICATE;
+import java.util.VALUE_OPTIONAL;
+#endif
 
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
@@ -17,15 +26,29 @@ import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 #endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
+#if !TYPE_OBJECT && !VALUE_OBJECT
+import speiger.src.collections.ints.functions.consumer.IntObjectConsumer;
+#endif
+#if !SAME_TYPE && !TYPE_INT
+import speiger.src.collections.ints.functions.consumer.VALUE_BI_FROM_INT_CONSUMER;
+#endif
+#if !TYPE_INT || !SAME_TYPE
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
+#endif
+#if !VALUE_BOOLEAN || !JDK_TYPE
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 #if !SAME_TYPE
 import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
 #endif
-#if !TYPE_OBJECT && !VALUE_BOOLEAN
+#if !TYPE_OBJECT && !JDK_TYPE
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#if!VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
 #endif
+#endif
 import speiger.src.collections.PACKAGE.maps.abstracts.ABSTRACT_MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.CONCURRENT_MAP;
@@ -43,6 +66,7 @@ import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPER
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOperator;
 #endif
+
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ITERATOR;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_BI_ITERATOR;
 import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_CONSUMER;
@@ -54,17 +78,14 @@ import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOpera
 #if !TYPE_OBJECT && !VALUE_OBJECT || !VALUE_OBJECT
 import speiger.src.collections.objects.functions.consumer.ObjectObjectConsumer;
 #endif
-#if !TYPE_OBJECT || !VALUE_BOOLEAN
-#if !VALUE_OBJECT || SAME_TYPE
-import speiger.src.collections.objects.functions.function.Object2BooleanFunction;
-#endif
-#endif
 #if !SAME_TYPE
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
 #endif
-
+#if !JDK_VALUE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_OPTIONAL;
+#endif
 #endif
 #if VALUE_OBJECT
 import speiger.src.collections.objects.collections.ObjectIterator;
@@ -73,6 +94,7 @@ import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
 import speiger.src.collections.objects.sets.ObjectSet;
 import speiger.src.collections.utils.HashUtil;
+import speiger.src.collections.utils.ITrimmable;
 
 /**
  * A TypeSpecific ConcurrentHashMap implementation that is based on <a href="https://github.com/google/guava">Guavas</a> approach and backing array implementations.
@@ -84,7 +106,7 @@ import speiger.src.collections.utils.HashUtil;
  * @Type(T)
  * @ValueType(V)
  */
-public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE implements CONCURRENT_MAP KEY_VALUE_GENERIC_TYPE
+public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE implements CONCURRENT_MAP KEY_VALUE_GENERIC_TYPE, ITrimmable
 {
 	/** Segment Limit */
 	private static final int MAX_SEGMENTS = 1 << 16;
@@ -524,6 +546,36 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		return getSegment(hash).computeIfPresent(hash, key, mappingFunction);
 	}
 	
+#if !VALUE_OBJECT
+	@Override
+	public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+		int hash = getHashCode(key);
+		return getSegment(hash).computeNonDefault(hash, key, mappingFunction);
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+		int hash = getHashCode(key);
+		return getSegment(hash).computeIfAbsentNonDefault(hash, key, mappingFunction);
+	}
+
+	@Override
+	public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+		Objects.requireNonNull(valueProvider);
+		int hash = getHashCode(key);
+		return getSegment(hash).supplyIfAbsentNonDefault(hash, key, valueProvider);
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+		int hash = getHashCode(key);
+		return getSegment(hash).computeIfPresentNonDefault(hash, key, mappingFunction);
+	}
+	
+#endif
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
@@ -538,6 +590,30 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		}
 	}
 	
+	@Override
+	public boolean trim(int size) {
+		int segmentCapacity = size / segments.length;
+		if(segmentCapacity * segments.length < size) {
+			segmentCapacity++;
+		}
+		boolean result = false;
+		for(int i = 0, m=segments.length;i<m;i++) {
+			result |= segments[i].trim(segmentCapacity);
+		}
+		return result;
+	}
+	
+	@Override
+	public void clearAndTrim(int size) {
+		int segmentCapacity = size / segments.length;
+		if(segmentCapacity * segments.length < size) {
+			segmentCapacity++;
+		}
+		for(int i = 0, m=segments.length;i<m;i++) {
+			segments[i].clearAndTrim(segmentCapacity);
+		}
+	}
+	
 	@Override
 	public boolean isEmpty() {
 		for(int i = 0,m=segments.length;i<m;i++) {
@@ -613,7 +689,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1){
-						action.accept(new BasicEntryKV_BRACES(seg.keys[index], seg.values[index]));
+						action.accept(new ValueMapEntry(index, i));
 						index = (int)seg.links[index];
 					}					
 				}
@@ -625,14 +701,14 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		
 		@Override
 		public void fastForEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			for(int i = 0,m=segments.length;i<m;i++) {
 				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
 				long stamp = seg.readLock();
 				try {
 					int index = seg.firstIndex;
 					while(index != -1){
-						entry.set(seg.keys[index], seg.values[index]);
+						entry.set(index, i);
 						action.accept(entry);
 						index = (int)seg.links[index];
 					}					
@@ -643,6 +719,26 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(IntObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+			Objects.requireNonNull(action);
+			int count = 0;
+			for(int i = 0,m=segments.length;i<m;i++) {
+				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
+				long stamp = seg.readLock();
+				try {
+					int index = seg.firstIndex;
+					while(index != -1) {
+						action.accept(count++, new ValueMapEntry(index, i));
+						index = (int)seg.links[index];
+					}					
+				}
+				finally {
+					seg.unlockRead(stamp);
+				}
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
@@ -652,7 +748,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1) {
-						action.accept(input, new BasicEntryKV_BRACES(seg.keys[index], seg.values[index]));
+						action.accept(input, new ValueMapEntry(index, i));
 						index = (int)seg.links[index];
 					}					
 				}
@@ -663,17 +759,17 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		}
 		
 		@Override
-		public boolean matchesAny(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAny(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			for(int i = 0,m=segments.length;i<m;i++) {
 				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
 				long stamp = seg.readLock();
 				try {
 					int index = seg.firstIndex;
 					while(index != -1) {
-						entry.set(seg.keys[index], seg.values[index]);
-						if(filter.getBoolean(entry)) return true;
+						entry.set(index, i);
+						if(filter.test(entry)) return true;
 						index = (int)seg.links[index];
 					}					
 				}
@@ -685,17 +781,17 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		}
 		
 		@Override
-		public boolean matchesNone(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesNone(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			for(int i = 0,m=segments.length;i<m;i++) {
 				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
 				long stamp = seg.readLock();
 				try {
 					int index = seg.firstIndex;
 					while(index != -1) {
-						entry.set(seg.keys[index], seg.values[index]);
-						if(filter.getBoolean(entry)) return false;
+						entry.set(index, i);
+						if(filter.test(entry)) return false;
 						index = (int)seg.links[index];
 					}					
 				}
@@ -707,17 +803,17 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		}
 		
 		@Override
-		public boolean matchesAll(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAll(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			for(int i = 0,m=segments.length;i<m;i++) {
 				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
 				long stamp = seg.readLock();
 				try {
 					int index = seg.firstIndex;
 					while(index != -1) {
-						entry.set(seg.keys[index], seg.values[index]);
-						if(!filter.getBoolean(entry)) return false;
+						entry.set(index, i);
+						if(!filter.test(entry)) return false;
 						index = (int)seg.links[index];
 					}
 				}
@@ -738,7 +834,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1) {
-						state = operator.apply(state, new BasicEntryKV_BRACES(seg.keys[index], seg.values[index]));
+						state = operator.apply(state, new ValueMapEntry(index, i));
 						index = (int)seg.links[index];
 					}
 				}
@@ -750,7 +846,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
 			Objects.requireNonNull(operator);
 			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
 			boolean empty = true;
@@ -762,11 +858,11 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 					while(index != -1) {
 						if(empty) {
 							empty = false;
-							state = new BasicEntryKV_BRACES(seg.keys[index], seg.values[index]);
+							state = new ValueMapEntry(index, i);
 							index = (int)seg.links[index];
 							continue;
 						}
-						state = operator.apply(state, new BasicEntryKV_BRACES(seg.keys[index], seg.values[index]));
+						state = operator.apply(state, new ValueMapEntry(index, i));
 						index = (int)seg.links[index];
 					}					
 				}
@@ -774,21 +870,21 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 					seg.unlockRead(stamp);
 				}
 			}
-			return state;
+			return empty ? Optional.empty() : Optional.ofNullable(state);
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> findFirst(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			for(int i = 0,m=segments.length;i<m;i++) {
 				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
 				int index = seg.firstIndex;
 				long stamp = seg.readLock();
 				try {
 					while(index != -1) {
-						entry.set(seg.keys[index], seg.values[index]);
-						if(filter.getBoolean(entry)) return entry;
+						entry.set(index, i);
+						if(filter.test(entry)) return Optional.ofNullable(entry);
 						index = (int)seg.links[index];
 					}
 				}
@@ -796,22 +892,22 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 					seg.unlockRead(stamp);
 				}
 			}
-			return null;
+			return Optional.empty();
 		}
 		
 		@Override
-		public int count(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public int count(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			int result = 0;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			for(int i = 0,m=segments.length;i<m;i++) {
 				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
 				long stamp = seg.readLock();
 				try {
 					int index = seg.firstIndex;
 					while(index != -1) {
-						entry.set(seg.keys[index], seg.values[index]);
-						if(filter.getBoolean(entry)) result++;
+						entry.set(index, i);
+						if(filter.test(entry)) result++;
 						index = (int)seg.links[index];
 					}
 				}
@@ -952,6 +1048,26 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			int count = 0;
+			for(int i = 0,m=segments.length;i<m;i++) {
+				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
+				long stamp = seg.readLock();
+				try {
+					int index = seg.firstIndex;
+					while(index != -1){
+						action.accept(count++, seg.keys[index]);
+						index = (int)seg.links[index];
+					}
+				}
+				finally {
+					seg.unlockRead(stamp);
+				}
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -980,7 +1096,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1){
-						if(filter.TEST_VALUE(seg.keys[index])) return true;
+						if(filter.test(seg.keys[index])) return true;
 						index = (int)seg.links[index];
 					}					
 				}
@@ -1000,7 +1116,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1){
-						if(filter.TEST_VALUE(seg.keys[index])) return false;
+						if(filter.test(seg.keys[index])) return false;
 						index = (int)seg.links[index];
 					}
 				}
@@ -1020,7 +1136,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1){
-						if(!filter.TEST_VALUE(seg.keys[index])) return false;
+						if(!filter.test(seg.keys[index])) return false;
 						index = (int)seg.links[index];
 					}
 				}
@@ -1077,7 +1193,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		
 #endif
 		@Override
-		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		public OPTIONAL KEY_GENERIC_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			KEY_TYPE state = EMPTY_KEY_VALUE;
 			boolean empty = true;
@@ -1101,11 +1217,11 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 					seg.unlockRead(stamp);
 				}
 			}
-			return state;
+			return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 		}
 		
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(int i = 0,m=segments.length;i<m;i++) {
 				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
@@ -1113,7 +1229,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1){
-						if(filter.TEST_VALUE(seg.keys[index])) return seg.keys[index];
+						if(filter.test(seg.keys[index])) return OPTIONAL.GET_OPTIONAL(seg.keys[index]);
 						index = (int)seg.links[index];
 					}
 				}
@@ -1121,7 +1237,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 					seg.unlockRead(stamp);
 				}
 			}
-			return EMPTY_KEY_VALUE;
+			return OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1134,7 +1250,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1){
-						if(filter.TEST_VALUE(seg.keys[index])) result++;
+						if(filter.test(seg.keys[index])) result++;
 						index = (int)seg.links[index];
 					}
 				}
@@ -1200,6 +1316,26 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(VALUE_BI_FROM_INT_CONSUMER VALUE_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			int count = 0;
+			for(int i = 0,m=segments.length;i<m;i++) {
+				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
+				long stamp = seg.readLock();
+				try {
+					int index = seg.firstIndex;
+					while(index != -1){
+						action.accept(count++, seg.values[index]);
+						index = (int)seg.links[index];
+					}
+				}
+				finally {
+					seg.unlockRead(stamp);
+				}
+			}			
+		}
+		
 		@Override
 		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -1228,7 +1364,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1){
-						if(filter.VALUE_TEST_VALUE(seg.values[index])) return true;
+						if(filter.test(seg.values[index])) return true;
 						index = (int)seg.links[index];
 					}
 				}
@@ -1248,7 +1384,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1) {
-						if(filter.VALUE_TEST_VALUE(seg.values[index])) return false;
+						if(filter.test(seg.values[index])) return false;
 						index = (int)seg.links[index];
 					}
 				}
@@ -1268,7 +1404,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1) {
-						if(!filter.VALUE_TEST_VALUE(seg.values[index])) return false;
+						if(!filter.test(seg.values[index])) return false;
 						index = (int)seg.links[index];
 					}
 				}
@@ -1325,7 +1461,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		
 #endif
 		@Override
-		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			VALUE_TYPE state = EMPTY_VALUE;
 			boolean empty = true;
@@ -1349,20 +1485,20 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 					seg.unlockRead(stamp);
 				}
 			}
-			return state;
+			return empty ? VALUE_OPTIONAL.empty() : VALUE_OPTIONAL.GET_OPTIONAL_VALUE(state);
 		}
 		
 		@Override
-		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_VALUE;
+			if(size() <= 0) return VALUE_OPTIONAL.empty();
 			for(int i = 0,m=segments.length;i<m;i++) {
 				Segment KEY_VALUE_GENERIC_TYPE seg = segments[i];
 				long stamp = seg.readLock();
 				try {
 					int index = seg.firstIndex;
 					while(index != -1){
-						if(filter.VALUE_TEST_VALUE(seg.values[index])) return seg.values[index];
+						if(filter.test(seg.values[index])) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(seg.values[index]);
 						index = (int)seg.links[index];
 					}
 				}
@@ -1370,7 +1506,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 					seg.unlockRead(stamp);
 				}
 			}
-			return EMPTY_VALUE;
+			return VALUE_OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1383,7 +1519,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				try {
 					int index = seg.firstIndex;
 					while(index != -1){
-						if(filter.VALUE_TEST_VALUE(seg.values[index])) result++;
+						if(filter.test(seg.values[index])) result++;
 						index = (int)seg.links[index];
 					}
 				}
@@ -1420,12 +1556,12 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE next() {
-			return entry = new MapEntry(nextEntry(), currentSegment());
+			return entry = new ValueMapEntry(nextEntry(), currentSegment());
 		}
 	
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE previous() {
-			return entry = new MapEntry(previousEntry(), currentSegment());
+			return entry = new ValueMapEntry(previousEntry(), currentSegment());
 		}
 	
 		@Override
@@ -1610,6 +1746,33 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		}
 	}
 	
+	protected class ValueMapEntry extends MapEntry {
+		protected KEY_TYPE key;
+		protected VALUE_TYPE value;
+		
+		public ValueMapEntry(int index, int segmentIndex) {
+			super(index, segmentIndex);
+			key = segments[segmentIndex].keys[index];
+			value = segments[segmentIndex].values[index];
+		}
+		
+		@Override
+		public KEY_TYPE ENTRY_KEY() {
+			return key;
+		}
+
+		@Override
+		public VALUE_TYPE ENTRY_VALUE() {
+			return value;
+		}
+		
+		@Override
+		public VALUE_TYPE setValue(VALUE_TYPE value) {
+			this.value = value;
+			return super.setValue(value);
+		}
+	}
+	
 	protected class MapEntry implements MAP.Entry KEY_VALUE_GENERIC_TYPE, Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE> {
 		int index = -1;
 		int segmentIndex = -1;
@@ -1645,7 +1808,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 			long stamp = seg.writeLock();
 			try
 			{
-				VALUE_TYPE oldValue = ENTRY_VALUE();
+				VALUE_TYPE oldValue = seg.values[index];
 				seg.values[index] = value;
 				return oldValue;
 			}
@@ -1787,6 +1950,11 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 					insert(-slot-1, key, value);
 					return getDefaultReturnValue();
 				}
+				else if(VALUE_EQUALS(values[slot], getDefaultReturnValue())) {
+					VALUE_TYPE oldValue = values[slot];
+					values[slot] = value;
+					return oldValue;
+				}
 				return values[slot];
 			}
 			finally {
@@ -2025,7 +2193,11 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 			long stamp = writeLock();
 			try
 			{
+#if TYPE_OBJECT
 				if(key == null) {
+#else
+				if(key == null || (key instanceof CLASS_TYPE && KEY_EQUALS_NULL(CLASS_TO_KEY(key)))) {
+#endif
 					if(containsNull && EQUALS_VALUE_TYPE(values[nullIndex], value)) {
 						removeNullIndex();
 						return true;
@@ -2085,6 +2257,110 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 				int index = findIndex(hash, key);
 				if(index < 0) {
 					VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
+#if VALUE_OBJECT
+					if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+					insert(-index-1, key, newValue);
+					return newValue;
+				}
+				VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+#if VALUE_OBJECT
+				if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+					removeIndex(index);
+					return newValue;
+				}
+#endif
+				values[index] = newValue;
+				return newValue;
+			}
+			finally {
+				unlockWrite(stamp);
+			}
+		}
+		
+		protected VALUE_TYPE computeIfAbsent(int hash, KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+			long stamp = writeLock();
+			try {
+				int index = findIndex(hash, key);
+				if(index < 0) {
+					VALUE_TYPE newValue = mappingFunction.APPLY(key);
+#if VALUE_OBJECT
+					if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+					insert(-index-1, key, newValue);
+					return newValue;
+				}
+				VALUE_TYPE newValue = values[index];
+#if VALUE_OBJECT
+				if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+					newValue = mappingFunction.APPLY(key);
+					if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+					values[index] = newValue;
+				}
+#endif
+				return newValue;
+			}
+			finally {
+				unlockWrite(stamp);
+			}
+		}
+				
+		protected VALUE_TYPE supplyIfAbsent(int hash, KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+			long stamp = writeLock();
+			try {
+				int index = findIndex(hash, key);
+				if(index < 0) {
+					VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
+#if VALUE_OBJECT
+					if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+					insert(-index-1, key, newValue);
+					return newValue;
+				}
+				VALUE_TYPE newValue = values[index];
+#if VALUE_OBJECT
+				if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+					newValue = valueProvider.VALUE_SUPPLY_GET();
+					if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+					values[index] = newValue;
+				}
+#endif
+				return newValue;
+			}
+			finally {
+				unlockWrite(stamp);
+			}
+		}
+				
+		protected VALUE_TYPE computeIfPresent(int hash, KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+			long stamp = writeLock();
+			try {
+				int index = findIndex(hash, key);
+#if !VALUE_OBJECT
+				if(index < 0) return getDefaultReturnValue();
+				VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+#else
+				if(index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue())) return getDefaultReturnValue();
+				VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+				if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+					removeIndex(index);
+					return newValue;
+				}
+#endif
+				values[index] = newValue;
+				return newValue;
+			}
+			finally {
+				unlockWrite(stamp);
+			}
+		}
+		
+		protected VALUE_TYPE computeNonDefault(int hash, KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+			long stamp = writeLock();
+			try {
+				int index = findIndex(hash, key);
+				if(index < 0) {
+					VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
 					if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 					insert(-index-1, key, newValue);
 					return newValue;
@@ -2102,19 +2378,20 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 			}
 		}
 		
-		protected VALUE_TYPE computeIfAbsent(int hash, KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+#if !VALUE_OBJECT
+		protected VALUE_TYPE computeIfAbsentNonDefault(int hash, KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
 			long stamp = writeLock();
 			try {
 				int index = findIndex(hash, key);
 				if(index < 0) {
-					VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+					VALUE_TYPE newValue = mappingFunction.APPLY(key);
 					if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 					insert(-index-1, key, newValue);
 					return newValue;
 				}
 				VALUE_TYPE newValue = values[index];
 				if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
-					newValue = mappingFunction.GET_VALUE(key);
+					newValue = mappingFunction.APPLY(key);
 					if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 					values[index] = newValue;
 				}
@@ -2125,19 +2402,19 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 			}
 		}
 		
-		protected VALUE_TYPE supplyIfAbsent(int hash, KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+		protected VALUE_TYPE supplyIfAbsentNonDefault(int hash, KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
 			long stamp = writeLock();
 			try {
 				int index = findIndex(hash, key);
 				if(index < 0) {
-					VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+					VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
 					if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 					insert(-index-1, key, newValue);
 					return newValue;
 				}
 				VALUE_TYPE newValue = values[index];
 				if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
-					newValue = valueProvider.VALUE_GET_KEY();
+					newValue = valueProvider.VALUE_SUPPLY_GET();
 					if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 					values[index] = newValue;
 				}
@@ -2148,7 +2425,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 			}
 		}
 		
-		protected VALUE_TYPE computeIfPresent(int hash, KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		protected VALUE_TYPE computeIfPresentNonDefault(int hash, KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 			long stamp = writeLock();
 			try {
 				int index = findIndex(hash, key);
@@ -2166,6 +2443,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 			}
 		}
 		
+#endif		
 		protected VALUE_TYPE merge(int hash, KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 			long stamp = writeLock();
 			try {
@@ -2202,7 +2480,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		
 		protected boolean trim(int size) {
 			int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-			if(request >= size || this.size > Math.min((int)Math.ceil(request * loadFactor), request - 1)) return false;
+			if(request >= mask+1 || this.size > Math.min((int)Math.ceil(request * loadFactor), request - 1)) return false;
 			long stamp = writeLock();
 			try {
 				try {
@@ -2218,7 +2496,7 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 		
 		protected void clearAndTrim(int size) {
 			int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-			if(request >= size) {
+			if(request >= mask+1) {
 				clear();
 				return;
 			}
@@ -2298,6 +2576,9 @@ public class CONCURRENT_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY
 #endif
 		protected int findIndex(int hash, Object key) {
 			if(key == null) return containsNull ? nullIndex : -(nullIndex + 1);
+#if !TYPE_OBJECT
+			if(KEY_EQUALS_NULL(CLASS_TO_KEY(key))) return containsNull ? nullIndex : -(nullIndex + 1);
+#endif
 			int pos = hash & mask;
 			KEY_TYPE current = keys[pos];
 			if(KEY_EQUALS_NOT_NULL(current)) {

src/builder/resources/speiger/assets/collections/templates/maps/impl/customHash/LinkedOpenCustomHashMap.template

@@ -3,29 +3,48 @@ package speiger.src.collections.PACKAGE.maps.impl.customHash;
 import java.util.Arrays;
 import java.util.Map;
 import java.util.NoSuchElementException;
+import java.util.Objects;
+import java.util.Optional;
 import java.util.function.Consumer;
 import java.util.function.BiFunction;
-import java.util.Objects;
+import java.util.function.Predicate;
+#if !TYPE_OBJECT && JDK_TYPE
+import java.util.function.PREDICATE;
+import java.util.OPTIONAL;
+#endif
+#if !SAME_TYPE && JDK_VALUE && !VALUE_OBJECT
+import java.util.function.VALUE_PREDICATE;
+import java.util.VALUE_OPTIONAL;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 #endif
-#if !TYPE_OBJECT || VALUE_BOOLEAN
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
+#if !TYPE_OBJECT && !VALUE_OBJECT
+import speiger.src.collections.ints.functions.consumer.IntObjectConsumer;
+#endif
+#if !SAME_TYPE && !TYPE_INT
+import speiger.src.collections.ints.functions.consumer.VALUE_BI_FROM_INT_CONSUMER;
+#endif
+#if !TYPE_OBJECT && !JDK_TYPE
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
 #endif
+#if !TYPE_INT || !SAME_TYPE
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.ORDERED_MAP;
 import speiger.src.collections.PACKAGE.sets.ABSTRACT_SET;
 import speiger.src.collections.PACKAGE.sets.ORDERED_SET;
-import speiger.src.collections.PACKAGE.sets.SET;
 import speiger.src.collections.PACKAGE.utils.STRATEGY;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
-import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
+import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ORDERED_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ITERATOR;
 #if !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
@@ -37,17 +56,15 @@ import speiger.src.collections.VALUE_PACKAGE.lists.VALUE_LIST_ITERATOR;
 #if !TYPE_OBJECT && !VALUE_OBJECT || !VALUE_OBJECT
 import speiger.src.collections.objects.functions.consumer.ObjectObjectConsumer;
 #endif
-#if !TYPE_OBJECT || !VALUE_BOOLEAN
-#if !VALUE_OBJECT || SAME_TYPE
-import speiger.src.collections.objects.functions.function.Object2BooleanFunction;
-#endif
-#endif
 #if !SAME_TYPE
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
 
 #endif
+#if !JDK_VALUE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_OPTIONAL;
+#endif
 #endif
 #if !TYPE_OBJECT
 #if !VALUE_OBJECT
@@ -57,7 +74,7 @@ import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOpera
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 import speiger.src.collections.objects.lists.ObjectListIterator;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
-import speiger.src.collections.objects.sets.ObjectSet;
+import speiger.src.collections.objects.sets.ObjectOrderedSet;
 #endif
 import speiger.src.collections.utils.HashUtil;
 
@@ -221,13 +238,13 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			if(containsNull) {
 				VALUE_TYPE lastValue = values[nullIndex];
 				values[nullIndex] = value;
-				moveToFirstIndex(nullIndex);
+				moveToFirstIndex(nullIndex, false);
 				return lastValue;
 			}
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToFirstIndex(nullIndex);
+			moveToFirstIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
@@ -235,7 +252,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 				if(strategy.equals(keys[pos], key)) {
 					VALUE_TYPE lastValue = values[pos];
 					values[pos] = value;
-					moveToFirstIndex(pos);
+					moveToFirstIndex(pos, false);
 					return lastValue;
 				}
 				pos = ++pos & mask;
@@ -243,7 +260,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToFirstIndex(pos);
+			moveToFirstIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -255,13 +272,13 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			if(containsNull) {
 				VALUE_TYPE lastValue = values[nullIndex];
 				values[nullIndex] = value;
-				moveToLastIndex(nullIndex);
+				moveToLastIndex(nullIndex, false);
 				return lastValue;
 			}
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToLastIndex(nullIndex);
+			moveToLastIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
@@ -269,7 +286,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 				if(strategy.equals(keys[pos], key)) {
 					VALUE_TYPE lastValue = values[pos];
 					values[pos] = value;
-					moveToLastIndex(pos);
+					moveToLastIndex(pos, false);
 					return lastValue;
 				}
 				pos = ++pos & mask;
@@ -277,7 +294,55 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToLastIndex(pos);
+			moveToLastIndex(pos, true);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+		return getDefaultReturnValue();
+	}
+	
+	@Override
+	public VALUE_TYPE putFirst(KEY_TYPE key, VALUE_TYPE value) {
+		if(strategy.equals(key, EMPTY_KEY_VALUE)) {
+			if(containsNull) return values[nullIndex];
+			values[nullIndex] = value;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+			moveToFirstIndex(nullIndex, true);
+		}
+		else {
+			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
+			while(!strategy.equals(keys[pos], EMPTY_KEY_VALUE)) {
+				if(strategy.equals(keys[pos], key)) return values[pos];
+				pos = ++pos & mask;
+			}
+			keys[pos] = key;
+			values[pos] = value;
+			onNodeAdded(pos);
+			moveToFirstIndex(pos, true);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+		return getDefaultReturnValue();
+	}
+	
+	@Override
+	public VALUE_TYPE putLast(KEY_TYPE key, VALUE_TYPE value) {
+		if(strategy.equals(key, EMPTY_KEY_VALUE)) {
+			if(containsNull) return values[nullIndex];
+			values[nullIndex] = value;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+			moveToLastIndex(nullIndex, true);
+		}
+		else {
+			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
+			while(!strategy.equals(keys[pos], EMPTY_KEY_VALUE)) {
+				if(strategy.equals(keys[pos], key)) return values[pos];
+				pos = ++pos & mask;
+			}
+			keys[pos] = key;
+			values[pos] = value;
+			onNodeAdded(pos);
+			moveToLastIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -285,10 +350,10 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	
 	@Override
 	public boolean moveToFirst(KEY_TYPE key) {
-		if(strategy.equals(FIRST_ENTRY_KEY(), key)) return false;
+		if(isEmpty() || strategy.equals(FIRST_ENTRY_KEY(), key)) return false;
 		if(strategy.equals(key, EMPTY_KEY_VALUE)) {
 			if(containsNull) {
-				moveToFirstIndex(nullIndex);
+				moveToFirstIndex(nullIndex, false);
 				return true;
 			}
 		}
@@ -296,7 +361,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
 			while(!strategy.equals(keys[pos], EMPTY_KEY_VALUE)) {
 				if(strategy.equals(keys[pos], key)) {
-					moveToFirstIndex(pos);
+					moveToFirstIndex(pos, false);
 					return true;
 				}
 				pos = ++pos & mask;
@@ -307,10 +372,10 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	
 	@Override
 	public boolean moveToLast(KEY_TYPE key) {
-		if(strategy.equals(LAST_ENTRY_KEY(), key)) return false;
+		if(isEmpty() || strategy.equals(LAST_ENTRY_KEY(), key)) return false;
 		if(strategy.equals(key, EMPTY_KEY_VALUE)) {
 			if(containsNull) {
-				moveToLastIndex(nullIndex);
+				moveToLastIndex(nullIndex, false);
 				return true;
 			}
 		}
@@ -318,7 +383,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
 			while(!strategy.equals(keys[pos], EMPTY_KEY_VALUE)) {
 				if(strategy.equals(keys[pos], key)) {
-					moveToLastIndex(pos);
+					moveToLastIndex(pos, false);
 					return true;
 				}
 				pos = ++pos & mask;
@@ -331,7 +396,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	public VALUE_TYPE getAndMoveToFirst(KEY_TYPE key) {
 		int index = findIndex(key);
 		if(index < 0) return getDefaultReturnValue();
-		moveToFirstIndex(index);
+		moveToFirstIndex(index, false);
 		return values[index];
 	}
 	
@@ -339,7 +404,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	public VALUE_TYPE getAndMoveToLast(KEY_TYPE key) {
 		int index = findIndex(key);
 		if(index < 0) return getDefaultReturnValue();
-		moveToLastIndex(index);
+		moveToLastIndex(index, false);
 		return values[index];
 	}
 	
@@ -370,8 +435,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	public KEY_TYPE POLL_FIRST_ENTRY_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		int pos = firstIndex;
-		firstIndex = (int)links[pos];
-		if(0 <= firstIndex) links[firstIndex] |= 0xFFFFFFFF00000000L;
+		onNodeRemoved(pos);
 		KEY_TYPE result = keys[pos];
 		size--;
 		if(strategy.equals(result, EMPTY_KEY_VALUE)) {
@@ -394,8 +458,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	public KEY_TYPE POLL_LAST_ENTRY_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		int pos = lastIndex;
-		lastIndex = (int)(links[pos] >>> 32);
-		if(0 <= lastIndex) links[lastIndex] |= 0xFFFFFFFFL;
+		onNodeRemoved(pos);
 		KEY_TYPE result = keys[pos];
 		size--;
 		if(strategy.equals(result, EMPTY_KEY_VALUE)) {
@@ -421,21 +484,67 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	}
 	
 	@Override
-	public ObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		return new BasicEntryKV_BRACES(keys[firstIndex], values[firstIndex]);
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		return new BasicEntryKV_BRACES(keys[lastIndex], values[lastIndex]);
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirstEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		int pos = firstIndex;
+		onNodeRemoved(pos);
+		BasicEntry KEY_VALUE_GENERIC_TYPE result = new BasicEntryKV_BRACES(keys[pos], values[pos]);
+		size--;
+		if(strategy.equals(result.ENTRY_KEY(), EMPTY_KEY_VALUE)) {
+			containsNull = false;
+			keys[nullIndex] = EMPTY_KEY_VALUE;
+			values[nullIndex] = EMPTY_VALUE;
+		}
+		else shiftKeys(pos);
+		if(nullIndex > minCapacity && size < maxFill / 4 && nullIndex > HashUtil.DEFAULT_MIN_CAPACITY) rehash(nullIndex / 2);
+		return result;
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		int pos = lastIndex;
+		onNodeRemoved(pos);
+		BasicEntry KEY_VALUE_GENERIC_TYPE result = new BasicEntryKV_BRACES(keys[pos], values[pos]);
+		size--;
+		if(strategy.equals(result.ENTRY_KEY(), EMPTY_KEY_VALUE)) {
+			containsNull = false;
+			keys[nullIndex] = EMPTY_KEY_VALUE;
+			values[nullIndex] = EMPTY_VALUE;
+		}
+		else shiftKeys(pos);
+		if(nullIndex > minCapacity && size < maxFill / 4 && nullIndex > HashUtil.DEFAULT_MIN_CAPACITY) rehash(nullIndex / 2);
+		return result;
+	}
+	
+	@Override
+	public ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
 		if(entrySet == null) entrySet = new MapEntrySet();
-		return entrySet;
+		return (ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE>)entrySet;
 	}
 	
 	@Override
-	public SET KEY_GENERIC_TYPE keySet() {
+	public ORDERED_SET KEY_GENERIC_TYPE keySet() {
 		if(keySet == null) keySet = new KeySet();
-		return keySet;
+		return (ORDERED_SET KEY_GENERIC_TYPE)keySet;
 	}
 	
 	@Override
-	public VALUE_COLLECTION VALUE_GENERIC_TYPE values() {
+	public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE values() {
 		if(valuesC == null) valuesC = new Values();
-		return valuesC;
+		return (VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE)valuesC;
 	}
 	
 	@Override
@@ -456,7 +565,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	@Override
 	public void clearAndTrim(int size) {
 		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-		if(request >= size) {
+		if(request >= nullIndex) {
 			clear();
 			return;
 		}
@@ -471,8 +580,8 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		containsNull = false;
 	}
 	
-	protected void moveToFirstIndex(int startPos) {
-		if(size == 1 || firstIndex == startPos) return;
+	protected void moveToFirstIndex(int startPos, boolean adding) {
+		if(size == (adding ? 0 : 1) || firstIndex == startPos) return;
 		if(lastIndex == startPos) {
 			lastIndex = (int)(links[startPos] >>> 32);
 			links[lastIndex] |= 0xFFFFFFFFL;
@@ -489,8 +598,8 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		firstIndex = startPos;
 	}
 	
-	protected void moveToLastIndex(int startPos) {
-		if(size == 1 || lastIndex == startPos) return;
+	protected void moveToLastIndex(int startPos, boolean adding) {
+		if(size == (adding ? 0 : 1) || lastIndex == startPos) return;
 		if(firstIndex == startPos) {
 			firstIndex = (int)links[startPos];
 			links[lastIndex] |= 0xFFFFFFFF00000000L;
@@ -604,6 +713,10 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	}
 	
 	private class MapEntrySet extends AbstractObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> implements ORDERED_MAP.FastOrderedSet KEY_VALUE_GENERIC_TYPE {
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -620,24 +733,24 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE first() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getFirst() {
 			return new BasicEntryKV_BRACES(FIRST_ENTRY_KEY(), FIRST_ENTRY_VALUE());
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE last() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getLast() {
 			return new BasicEntryKV_BRACES(LAST_ENTRY_KEY(), LAST_ENTRY_VALUE());
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirst() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeFirst() {
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES(FIRST_ENTRY_KEY(), FIRST_ENTRY_VALUE());
 			POLL_FIRST_ENTRY_KEY();
 			return entry;
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLast() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeLast() {
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES(LAST_ENTRY_KEY(), LAST_ENTRY_VALUE());
 			POLL_LAST_ENTRY_KEY();
 			return entry;
@@ -645,7 +758,12 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		
 		@Override
 		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iterator() {
-			return new EntryIterator();
+			return new EntryIterator(true);
+		}
+		
+		@Override
+		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> reverseIterator() {
+			return new EntryIterator(false);
 		}
 		
 		@Override
@@ -655,7 +773,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		
 		@Override
 		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> fastIterator() {
-			return new FastEntryIterator();
+			return new FastEntryIterator(true);
 		}
 		
 		@Override
@@ -670,70 +788,82 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			int index = firstIndex;
 			while(index != -1) {
-				action.accept(new BasicEntryKV_BRACES(keys[index], values[index]));
+				action.accept(new ValueMapEntry(index));
 				index = (int)links[index];
 			}
 		}
 		
 		@Override
 		public void fastForEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
+				entry.set(index);
 				action.accept(entry);
 				index = (int)links[index];
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(IntObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			int count = 0;
+			int index = firstIndex;
+			while(index != -1) {
+				action.accept(count++, new ValueMapEntry(index));
+				index = (int)links[index];
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
 			int index = firstIndex;
 			while(index != -1) {
-				action.accept(input, new BasicEntryKV_BRACES(keys[index], values[index]));
+				action.accept(input, new ValueMapEntry(index));
 				index = (int)links[index];
 			}
 		}
 		
 		@Override
-		public boolean matchesAny(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAny(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return false;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) return true;
+				entry.set(index);
+				if(filter.test(entry)) return true;
 				index = (int)links[index];
 			}
 			return false;
 		}
 		
 		@Override
-		public boolean matchesNone(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesNone(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) return false;
+				entry.set(index);
+				if(filter.test(entry)) return false;
 				index = (int)links[index];
 			}
 			return true;
 		}
 		
 		@Override
-		public boolean matchesAll(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAll(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
-				if(!filter.getBoolean(entry)) return false;
+				entry.set(index);
+				if(!filter.test(entry)) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -745,14 +875,14 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			E state = identity;
 			int index = firstIndex;
 			while(index != -1) {
-				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[index]));
+				state = operator.apply(state, new ValueMapEntry(index));
 				index = (int)links[index];
 			}
 			return state;
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
 			Objects.requireNonNull(operator);
 			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
 			boolean empty = true;
@@ -760,40 +890,40 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			while(index != -1) {
 				if(empty) {
 					empty = false;
-					state = new BasicEntryKV_BRACES(keys[index], values[index]);
+					state = new ValueMapEntry(index);
 					index = (int)links[index];
 					continue;
 				}
-				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[index]));
+				state = operator.apply(state, new ValueMapEntry(index));
 				index = (int)links[index];
 			}
-			return state;
+			return empty ? Optional.empty() : Optional.ofNullable(state);
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> findFirst(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return null;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			if(size() <= 0) return Optional.empty();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) return entry;
+				entry.set(index);
+				if(filter.test(entry)) return Optional.ofNullable(entry);
 				index = (int)links[index];
 			}
-			return null;
+			return Optional.empty();
 		}
 		
 		@Override
-		public int count(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public int count(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return 0;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int result = 0;
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) result++;
+				entry.set(index);
+				if(filter.test(entry)) result++;
 				index = (int)links[index];
 			}
 			return result;
@@ -879,9 +1009,12 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			throw new UnsupportedOperationException();
 		}
 
+		@Override
+		public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }		
 		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
-
 		@Override
 		public boolean addAndMoveToLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 
@@ -897,7 +1030,12 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		
 		@Override
 		public LIST_ITERATOR KEY_GENERIC_TYPE iterator() {
-			return new KeyIterator();
+			return new KeyIterator(true);
+		}
+		
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE reverseIterator() {
+			return new KeyIterator(false);
 		}
 		
 		@Override
@@ -919,22 +1057,22 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		}
 		
 		@Override
-		public KEY_TYPE FIRST_KEY() {
+		public KEY_TYPE GET_FIRST_KEY() {
 			return FIRST_ENTRY_KEY();
 		}
 		
 		@Override
-		public KEY_TYPE POLL_FIRST_KEY() {
+		public KEY_TYPE REMOVE_FIRST_KEY() {
 			return POLL_FIRST_ENTRY_KEY();
 		}
 
 		@Override
-		public KEY_TYPE LAST_KEY() {
+		public KEY_TYPE GET_LAST_KEY() {
 			return LAST_ENTRY_KEY();
 		}
 
 		@Override
-		public KEY_TYPE POLL_LAST_KEY() {
+		public KEY_TYPE REMOVE_LAST_KEY() {
 			return POLL_LAST_ENTRY_KEY();
 		}
 		
@@ -947,6 +1085,18 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			int count = 0;
+			int index = firstIndex;
+			while(index != -1){
+				action.accept(count++, keys[index]);
+				index = (int)links[index];
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -964,7 +1114,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			if(size() <= 0) return false;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) return true;
+				if(filter.test(keys[index])) return true;
 				index = (int)links[index];
 			}
 			return false;
@@ -976,7 +1126,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) return false;
+				if(filter.test(keys[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -988,7 +1138,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1){
-				if(!filter.TEST_VALUE(keys[index])) return false;
+				if(!filter.test(keys[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -1022,7 +1172,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		
 #endif
 		@Override
-		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		public OPTIONAL KEY_GENERIC_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			KEY_TYPE state = EMPTY_KEY_VALUE;
 			boolean empty = true;
@@ -1037,19 +1187,19 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 				state = operator.APPLY_KEY_VALUE(state, keys[index]);
 				index = (int)links[index];
 			}
-			return state;
+			return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 		}
 		
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_KEY_VALUE;
+			if(size() <= 0) return OPTIONAL.empty();
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) return keys[index];
+				if(filter.test(keys[index])) return OPTIONAL.GET_OPTIONAL(keys[index]);
 				index = (int)links[index];
 			}
-			return EMPTY_KEY_VALUE;
+			return OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1059,46 +1209,54 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			int result = 0;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) result++;
+				if(filter.test(keys[index])) result++;
 				index = (int)links[index];
 			}
 			return result;
 		}
 	}
 	
-	private class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE {
+	private class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE implements VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE {
 #if VALUE_OBJECT
 		@Override
 		@Deprecated
-		public boolean contains(Object e) {
-			return containsValue(e);
-		}
-		
+		public boolean contains(Object e) { return containsValue(e); }
 #else
 		@Override
-		public boolean contains(VALUE_TYPE e) {
-			return containsValue(e);
-		}
-		
+		public boolean contains(VALUE_TYPE e) { return containsValue(e); }
 #endif
 		@Override
-		public boolean add(VALUE_TYPE o) {
-			throw new UnsupportedOperationException();
-		}
-
+		public boolean add(VALUE_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
-		public VALUE_ITERATOR VALUE_GENERIC_TYPE iterator() {
-			return new ValueIterator();
-		}
-		
+		public VALUE_ITERATOR VALUE_GENERIC_TYPE iterator() { return new ValueIterator(true); }
 		@Override
-		public int size() {
-			return LINKED_CUSTOM_HASH_MAP.this.size();
-		}
-		
+		public int size() { return LINKED_CUSTOM_HASH_MAP.this.size(); }
 		@Override
-		public void clear() {
-			LINKED_CUSTOM_HASH_MAP.this.clear();
+		public void clear() { LINKED_CUSTOM_HASH_MAP.this.clear(); }
+		@Override
+		public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE reversed() { return new VALUE_ABSTRACT_COLLECTION.VALUE_REVERSED_ORDERED_COLLECTIONVALUE_BRACES(this, this::reverseIterator); }
+		private VALUE_ITERATOR VALUE_GENERIC_TYPE reverseIterator() {
+			return new ValueIterator(false);
+		}
+		@Override
+		public void addFirst(VALUE_TYPE e) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(VALUE_TYPE e) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE VALUE_GET_FIRST_KEY() { return FIRST_ENTRY_VALUE(); }
+		@Override
+		public VALUE_TYPE VALUE_REMOVE_FIRST_KEY() {
+			VALUE_TYPE result = FIRST_ENTRY_VALUE();
+			POLL_FIRST_ENTRY_KEY();
+			return result; 
+		}
+		@Override
+		public VALUE_TYPE VALUE_GET_LAST_KEY() { return LAST_ENTRY_VALUE(); }
+		@Override
+		public VALUE_TYPE VALUE_REMOVE_LAST_KEY() {
+			VALUE_TYPE result = LAST_ENTRY_VALUE();
+			POLL_LAST_ENTRY_KEY();
+			return result; 
 		}
 		
 		@Override
@@ -1110,6 +1268,18 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(VALUE_BI_FROM_INT_CONSUMER VALUE_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			int count = 0;
+			int index = firstIndex;
+			while(index != -1){
+				action.accept(count++, values[index]);
+				index = (int)links[index];
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -1127,7 +1297,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			if(size() <= 0) return false;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) return true;
+				if(filter.test(values[index])) return true;
 				index = (int)links[index];
 			}
 			return false;
@@ -1139,7 +1309,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) return false;
+				if(filter.test(values[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -1151,7 +1321,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1){
-				if(!filter.VALUE_TEST_VALUE(values[index])) return false;
+				if(!filter.test(values[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -1185,7 +1355,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		
 #endif
 		@Override
-		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			VALUE_TYPE state = EMPTY_VALUE;
 			boolean empty = true;
@@ -1200,19 +1370,19 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 				state = operator.APPLY_VALUE(state, values[index]);
 				index = (int)links[index];
 			}
-			return state;
+			return empty ? VALUE_OPTIONAL.empty() : VALUE_OPTIONAL.GET_OPTIONAL_VALUE(state);
 		}
 		
 		@Override
-		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_VALUE;
+			if(size() <= 0) return VALUE_OPTIONAL.empty();
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) return values[index];
+				if(filter.test(values[index])) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(values[index]);
 				index = (int)links[index];
 			}
-			return EMPTY_VALUE;
+			return VALUE_OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1222,7 +1392,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			int result = 0;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) result++;
+				if(filter.test(values[index])) result++;
 				index = (int)links[index];
 			}
 			return result;
@@ -1232,7 +1402,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	private class FastEntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
 		MapEntry entry = new MapEntry();
 		
-		public FastEntryIterator() {}
+		public FastEntryIterator(boolean start) { super(start); }
 		public FastEntryIterator(KEY_TYPE from) {
 			super(from);
 		}
@@ -1259,19 +1429,19 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	private class EntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
 		MapEntry entry;
 		
-		public EntryIterator() {}
+		public EntryIterator(boolean start) { super(start); }
 		public EntryIterator(KEY_TYPE from) {
 			super(from);
 		}
 		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE next() {
-			return entry = new MapEntry(nextEntry());
+			return entry = new ValueMapEntry(nextEntry());
 		}
 		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE previous() {
-			return entry = new MapEntry(previousEntry());
+			return entry = new ValueMapEntry(previousEntry());
 		}
 		
 		@Override
@@ -1289,7 +1459,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	
 	private class KeyIterator extends MapIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
 		
-		public KeyIterator() {}
+		public KeyIterator(boolean start) { super(start); }
 		public KeyIterator(KEY_TYPE from) {
 			super(from);
 		}
@@ -1311,7 +1481,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	}
 	
 	private class ValueIterator extends MapIterator implements VALUE_LIST_ITERATOR VALUE_GENERIC_TYPE {
-		public ValueIterator() {}
+		public ValueIterator(boolean start) { super(start); }
 		
 		@Override
 		public VALUE_TYPE VALUE_PREVIOUS() {
@@ -1332,16 +1502,20 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	}
 	
 	private class MapIterator {
+		boolean forward;
 		int previous = -1;
 		int next = -1;
 		int current = -1;
 		int index = 0;
 		
-		MapIterator() {
-			next = firstIndex;
+		MapIterator(boolean start) {
+			this.forward = start;
+			if(start) next = firstIndex;
+			else previous = lastIndex;
 		}
 		
 		MapIterator(KEY_TYPE from) {
+			this.forward = true;
 			if(strategy.equals(from, EMPTY_KEY_VALUE)) {
 				if(containsNull) {
 					next = (int) links[nullIndex];
@@ -1369,11 +1543,11 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		}
 		
 		public boolean hasNext() {
-			return next != -1;
+			return (forward ? next : previous) != -1;
 		}
 
 		public boolean hasPrevious() {
-			return previous != -1;
+			return (forward ? previous : next) != -1;
 		}
 		
 		public int nextIndex() {
@@ -1433,20 +1607,30 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		
 		public int previousEntry() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			current = previous;
-			previous = (int)(links[current] >> 32);
-			next = current;
+			if(forward) moveBackwards();
+			else moveForwards();
 			if(index >= 0) index--;
 			return current;
 		}
 		
 		public int nextEntry() {
 			if(!hasNext()) throw new NoSuchElementException();
+			if(forward) moveForwards();
+			else moveBackwards();
+			if(index >= 0) index++;
+			return current;
+		}
+		
+		private void moveBackwards() {
+			current = previous;
+			previous = (int)(links[current] >> 32);
+			next = current;
+		}
+		
+		private void moveForwards() {
 			current = next;
 			next = (int)(links[current]);
 			previous = current;
-			if(index >= 0) index++;
-			return current;
 		}
 		
 		private void ensureIndexKnown() {

src/builder/resources/speiger/assets/collections/templates/maps/impl/customHash/OpenCustomHashMap.template

@@ -5,28 +5,49 @@ import java.util.ConcurrentModificationException;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+import java.util.Optional;
 import java.util.function.Consumer;
 import java.util.function.BiFunction;
+import java.util.function.Predicate;
+#if !TYPE_OBJECT && JDK_TYPE
+import java.util.function.PREDICATE;
+import java.util.OPTIONAL;
+#endif
+#if !SAME_TYPE && JDK_VALUE && !VALUE_OBJECT
+import java.util.function.VALUE_PREDICATE;
+import java.util.VALUE_OPTIONAL;
+#endif
 
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 #endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
+#if !TYPE_OBJECT && !VALUE_OBJECT
+import speiger.src.collections.ints.functions.consumer.IntObjectConsumer;
+#endif
+#if !SAME_TYPE && !TYPE_INT
+import speiger.src.collections.ints.functions.consumer.VALUE_BI_FROM_INT_CONSUMER;
+#endif
+#if !TYPE_INT || !SAME_TYPE
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
+#endif
+#if !VALUE_BOOLEAN || !JDK_TYPE
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 #if !SAME_TYPE
 import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
 #endif
-#if !TYPE_OBJECT && !VALUE_BOOLEAN
+#if !TYPE_OBJECT && !JDK_TYPE
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#if !VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
 #endif
-import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
-import speiger.src.collections.PACKAGE.lists.LIST;
+#endif
 import speiger.src.collections.PACKAGE.maps.abstracts.ABSTRACT_MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
-import speiger.src.collections.PACKAGE.utils.maps.MAPS;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.sets.ABSTRACT_SET;
 import speiger.src.collections.PACKAGE.sets.SET;
@@ -42,6 +63,7 @@ import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPER
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOperator;
 #endif
+
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ITERATOR;
 import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_CONSUMER;
 #endif
@@ -52,17 +74,15 @@ import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOpera
 #if !TYPE_OBJECT && !VALUE_OBJECT || !VALUE_OBJECT
 import speiger.src.collections.objects.functions.consumer.ObjectObjectConsumer;
 #endif
-#if !TYPE_OBJECT || !VALUE_BOOLEAN
-#if !VALUE_OBJECT || SAME_TYPE
-import speiger.src.collections.objects.functions.function.Object2BooleanFunction;
-#endif
-#endif
 #if !SAME_TYPE
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
 
 #endif
+#if !JDK_VALUE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_OPTIONAL;
+#endif
 #endif
 import speiger.src.collections.objects.collections.ObjectIterator;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
@@ -270,6 +290,11 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			insert(-slot-1, key, value);
 			return getDefaultReturnValue();
 		}
+		else if(VALUE_EQUALS(values[slot], getDefaultReturnValue())) {
+			VALUE_TYPE oldValue = values[slot];
+			values[slot] = value;
+			return oldValue;
+		}
 		return values[slot];
 	}
 	
@@ -394,7 +419,11 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	@Override
 	public boolean remove(Object key, Object value) {
 		Objects.requireNonNull(value);
+#if TYPE_OBJECT
 		if(key == null) {
+#else
+		if(key == null || (key instanceof CLASS_TYPE && strategy.equals(CLASS_TO_KEY(key), EMPTY_KEY_VALUE))) {
+#endif
 			if(containsNull && EQUALS_VALUE_TYPE(values[nullIndex], value)) {
 				removeNullIndex();
 				return true;
@@ -515,6 +544,95 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		int index = findIndex(key);
 		if(index < 0) {
 			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			insert(-index-1, key, newValue);
+			return newValue;
+		}
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			removeIndex(index);
+			return newValue;
+		}
+#endif
+		values[index] = newValue;
+		return newValue;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+		int index = findIndex(key);
+		if(index < 0) {
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			insert(-index-1, key, newValue);
+			return newValue;
+		}
+		VALUE_TYPE newValue = values[index];
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = mappingFunction.APPLY(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+#endif
+		return newValue;
+	}
+		
+	@Override
+	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+		Objects.requireNonNull(valueProvider);
+		int index = findIndex(key);
+		if(index < 0) {
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			insert(-index-1, key, newValue);
+			return newValue;
+		}
+		VALUE_TYPE newValue = values[index];
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = valueProvider.VALUE_SUPPLY_GET();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+#endif
+		return newValue;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+		int index = findIndex(key);
+#if !VALUE_OBJECT
+		if(index < 0) return getDefaultReturnValue();
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+#else
+		if(index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue())) return getDefaultReturnValue();
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			removeIndex(index);
+			return newValue;
+		}
+#endif
+		values[index] = newValue;
+		return newValue;
+	}
+	
+#if !VALUE_OBJECT
+	@Override
+	public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+		int index = findIndex(key);
+		if(index < 0) {
+			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			insert(-index-1, key, newValue);
 			return newValue;
@@ -529,18 +647,18 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	}
 	
 	@Override
-	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+	public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 		int index = findIndex(key);
 		if(index < 0) {
-			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			insert(-index-1, key, newValue);
 			return newValue;
 		}
 		VALUE_TYPE newValue = values[index];
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
-			newValue = mappingFunction.GET_VALUE(key);
+			newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			values[index] = newValue;
 		}
@@ -548,18 +666,18 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	}
 	
 	@Override
-	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+	public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
 		Objects.requireNonNull(valueProvider);
 		int index = findIndex(key);
 		if(index < 0) {
-			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			insert(-index-1, key, newValue);
 			return newValue;
 		}
 		VALUE_TYPE newValue = values[index];
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
-			newValue = valueProvider.VALUE_GET_KEY();
+			newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			values[index] = newValue;
 		}
@@ -567,7 +685,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	}
 	
 	@Override
-	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+	public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 		int index = findIndex(key);
 		if(index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue())) return getDefaultReturnValue();
@@ -580,6 +698,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		return newValue;
 	}
 	
+#endif
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
@@ -600,7 +719,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	@Override
 	public void BULK_MERGE(MAP KEY_VALUE_GENERIC_TYPE m, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
-		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
+		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : getFastIterable(m)) {
 			KEY_TYPE key = entry.ENTRY_KEY();
 			int index = findIndex(key);
 			VALUE_TYPE newValue = index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
@@ -628,7 +747,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	@Override
 	public boolean trim(int size) {
 		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-		if(request >= size || this.size > Math.min((int)Math.ceil(request * loadFactor), request - 1)) return false;
+		if(request >= nullIndex || this.size > Math.min((int)Math.ceil(request * loadFactor), request - 1)) return false;
 		try {
 			rehash(request);
 		}
@@ -639,7 +758,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	@Override
 	public void clearAndTrim(int size) {
 		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-		if(request >= size) {
+		if(request >= nullIndex) {
 			clear();
 			return;
 		}
@@ -669,6 +788,9 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	protected int findIndex(CLASS_TYPE key) {
 		if(key == null) return containsNull ? nullIndex : -(nullIndex + 1);
 		KEY_TYPE keyType = CLASS_TO_KEY(key);
+#if !TYPE_OBJECT
+		if(strategy.equals(keyType, EMPTY_KEY_VALUE)) return containsNull ? nullIndex : -(nullIndex + 1);
+#endif
 		int pos = HashUtil.mix(strategy.hashCode(keyType)) & mask;
 		KEY_TYPE current = keys[pos];
 		if(!strategy.equals(current, EMPTY_KEY_VALUE)) {
@@ -765,6 +887,33 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		}
 	}
 	
+	protected class ValueMapEntry extends MapEntry {
+		protected KEY_TYPE key;
+		protected VALUE_TYPE value;
+		
+		public ValueMapEntry(int index) {
+			super(index);
+			key = keys[index];
+			value = values[index];
+		}
+		
+		@Override
+		public KEY_TYPE ENTRY_KEY() {
+			return key;
+		}
+
+		@Override
+		public VALUE_TYPE ENTRY_VALUE() {
+			return value;
+		}
+		
+		@Override
+		public VALUE_TYPE setValue(VALUE_TYPE value) {
+			this.value = value;
+			return super.setValue(value);
+		}
+	}
+	
 	protected class MapEntry implements MAP.Entry KEY_VALUE_GENERIC_TYPE, Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE> {
 		public int index = -1;
 		
@@ -773,6 +922,10 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			this.index = index;
 		}
 		
+		void set(int index) {
+			this.index = index;
+		}
+		
 		@Override
 		public KEY_TYPE ENTRY_KEY() {
 			return keys[index];
@@ -795,19 +948,19 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			if(obj instanceof Map.Entry) {
 				if(obj instanceof MAP.Entry) {
 					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)obj;
-					return KEY_EQUALS(keys[index], entry.ENTRY_KEY()) && VALUE_EQUALS(values[index], entry.ENTRY_VALUE());
+					return KEY_EQUALS(ENTRY_KEY(), entry.ENTRY_KEY()) && VALUE_EQUALS(ENTRY_VALUE(), entry.ENTRY_VALUE());
 				}
 				Map.Entry<?, ?> entry = (Map.Entry<?, ?>)obj;
 				Object key = entry.getKey();
 				Object value = entry.getValue();
 #if TYPE_OBJECT && VALUE_OBJECT
-				return KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], value);
+				return KEY_EQUALS(ENTRY_KEY(), key) && VALUE_EQUALS(ENTRY_VALUE(), value);
 #else if TYPE_OBJECT
-				return value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], CLASS_TO_VALUE(value));
+				return value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(ENTRY_KEY(), key) && VALUE_EQUALS(ENTRY_VALUE(), CLASS_TO_VALUE(value));
 #else if VALUE_OBJECT
-				return key instanceof CLASS_TYPE && KEY_EQUALS(keys[index], CLASS_TO_KEY(key)) && VALUE_EQUALS(values[index], value);
+				return key instanceof CLASS_TYPE && KEY_EQUALS(ENTRY_KEY(), CLASS_TO_KEY(key)) && VALUE_EQUALS(ENTRY_VALUE(), value);
 #else
-				return key instanceof CLASS_TYPE && value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], CLASS_TO_KEY(key)) && VALUE_EQUALS(values[index], CLASS_TO_VALUE(value));
+				return key instanceof CLASS_TYPE && value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(ENTRY_KEY(), CLASS_TO_KEY(key)) && VALUE_EQUALS(ENTRY_VALUE(), CLASS_TO_VALUE(value));
 #endif
 			}
 			return false;
@@ -815,12 +968,12 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		
 		@Override
 		public int hashCode() {
-			return strategy.hashCode(keys[index]) ^ VALUE_TO_HASH(values[index]);
+			return strategy.hashCode(ENTRY_KEY()) ^ VALUE_TO_HASH(ENTRY_VALUE());
 		}
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(ENTRY_KEY()) + "=" + VALUE_TO_STRING(ENTRY_VALUE());
 		}
 	}
 	
@@ -837,85 +990,95 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		
 		@Override
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
-			if(containsNull) action.accept(new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]));
+			if(containsNull) action.accept(new ValueMapEntry(nullIndex));
 			for(int i = nullIndex-1;i>=0;i--)
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(new BasicEntryKV_BRACES(keys[i], values[i]));
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(new ValueMapEntry(i));
 		}
 		
 		@Override
 		public void fastForEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
+				entry.set(nullIndex);
 				action.accept(entry);
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) {
-					entry.set(keys[i], values[i]);
+					entry.set(i);
 					action.accept(entry);
 				}
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(IntObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			if(containsNull) action.accept(0, new ValueMapEntry(nullIndex));
+			for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(index++, new ValueMapEntry(i));
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
-			if(containsNull) action.accept(input, new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]));
+			if(containsNull) action.accept(input, new ValueMapEntry(nullIndex));
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(input, new BasicEntryKV_BRACES(keys[i], values[i]));
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(input, new ValueMapEntry(i));
 			}
 		}
 		
 		@Override
-		public boolean matchesAny(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAny(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return false;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
-				if(filter.getBoolean(entry)) return true;
+				entry.set(nullIndex);
+				if(filter.test(entry)) return true;
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) {
-					entry.set(keys[i], values[i]);
-					if(filter.getBoolean(entry)) return true;
+					entry.set(i);
+					if(filter.test(entry)) return true;
 				}
 			}
 			return false;
 		}
 		
 		@Override
-		public boolean matchesNone(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesNone(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
-				if(filter.getBoolean(entry)) return false;
+				entry.set(nullIndex);
+				if(filter.test(entry)) return false;
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) {
-					entry.set(keys[i], values[i]);
-					if(filter.getBoolean(entry)) return false;
+					entry.set(i);
+					if(filter.test(entry)) return false;
 				}
 			}
 			return true;
 		}
 		
 		@Override
-		public boolean matchesAll(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAll(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
-				if(!filter.getBoolean(entry)) return false;
+				entry.set(nullIndex);
+				if(!filter.test(entry)) return false;
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) {
-					entry.set(keys[i], values[i]);
-					if(!filter.getBoolean(entry)) return false;
+					entry.set(i);
+					if(!filter.test(entry)) return false;
 				}
 			}
 			return true;
@@ -925,67 +1088,67 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
 			Objects.requireNonNull(operator);
 			E state = identity;
-			if(containsNull) state = operator.apply(state, new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]));
+			if(containsNull) state = operator.apply(state, new ValueMapEntry(nullIndex));
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
-				state = operator.apply(state, new BasicEntryKV_BRACES(keys[i], values[i]));
+				state = operator.apply(state, new ValueMapEntry(i));
 			}
 			return state;
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
 			Objects.requireNonNull(operator);
 			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
 			boolean empty = true;
 			if(containsNull) {
-				state = new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]);
+				state = new ValueMapEntry(nullIndex);
 				empty = false;
 			}
-			for(int i = 0;i<size;i++) {
+			for(int i = nullIndex-1;i>=0;i--) {
 				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
 				if(empty) {
 					empty = false;
-					state = new BasicEntryKV_BRACES(keys[i], values[i]);
+					state = new ValueMapEntry(i);
 					continue;
 				}
-				state = operator.apply(state, new BasicEntryKV_BRACES(keys[i], values[i]));
+				state = operator.apply(state, new ValueMapEntry(i));
 			}
-			return state;
+			return empty ? Optional.empty() : Optional.ofNullable(state);
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> findFirst(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return null;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			if(size() <= 0) return Optional.empty();
+			MapEntry entry = new MapEntry();
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
-				if(filter.getBoolean(entry)) return entry;
+				entry.set(nullIndex);
+				if(filter.test(entry)) return Optional.ofNullable(entry);
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) {
-					entry.set(keys[i], values[i]);
-					if(filter.getBoolean(entry)) return entry;
+					entry.set(i);
+					if(filter.test(entry)) return Optional.ofNullable(entry);
 				}
 			}
-			return null;
+			return Optional.empty();
 		}
 		
 		@Override
-		public int count(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public int count(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return 0;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int result = 0;
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
-				if(filter.getBoolean(entry)) result++;
+				entry.set(nullIndex);
+				if(filter.test(entry)) result++;
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) {
-					entry.set(keys[i], values[i]);
-					if(filter.getBoolean(entry)) result++;
+					entry.set(i);
+					if(filter.test(entry)) result++;
 				}
 			}
 			return result;
@@ -1094,6 +1257,16 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(keys[i]);
 		}
 		
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			if(containsNull) action.accept(0, keys[nullIndex]);
+			for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(index++, keys[i]);
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -1108,9 +1281,9 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return false;
-			if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return true;
+			if(containsNull && filter.test(keys[nullIndex])) return true;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.TEST_VALUE(keys[i])) return true;
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(keys[i])) return true;
 			}
 			return false;
 		}
@@ -1119,9 +1292,9 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return false;
+			if(containsNull && filter.test(keys[nullIndex])) return false;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.TEST_VALUE(keys[i])) return false;
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(keys[i])) return false;
 			}
 			return true;
 		}
@@ -1130,9 +1303,9 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			if(containsNull && !filter.TEST_VALUE(keys[nullIndex])) return false;
+			if(containsNull && !filter.test(keys[nullIndex])) return false;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && !filter.TEST_VALUE(keys[i])) return false;
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && !filter.test(keys[i])) return false;
 			}
 			return true;
 		}
@@ -1165,7 +1338,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		
 #endif
 		@Override
-		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		public OPTIONAL KEY_GENERIC_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			KEY_TYPE state = EMPTY_KEY_VALUE;
 			boolean empty = true;
@@ -1173,7 +1346,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 				state = keys[nullIndex];
 				empty = false;
 			}
-			for(int i = 0;i<size;i++) {
+			for(int i = nullIndex-1;i>=0;i--) {
 				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
 				if(empty) {
 					empty = false;
@@ -1182,18 +1355,18 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 				}
 				state = operator.APPLY_KEY_VALUE(state, keys[i]);
 			}
-			return state;
+			return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 		}
 		
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_KEY_VALUE;
-			if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return keys[nullIndex];
+			if(size() <= 0) return OPTIONAL.empty();
+			if(containsNull && filter.test(keys[nullIndex])) return OPTIONAL.GET_OPTIONAL(keys[nullIndex]);
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.TEST_VALUE(keys[i])) return keys[i];
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(keys[i])) return OPTIONAL.GET_OPTIONAL(keys[i]);
 			}
-			return EMPTY_KEY_VALUE;
+			return OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1201,9 +1374,9 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return 0;
 			int result = 0;
-			if(containsNull && filter.TEST_VALUE(keys[nullIndex])) result++;
+			if(containsNull && filter.test(keys[nullIndex])) result++;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.TEST_VALUE(keys[i])) result++;
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(keys[i])) result++;
 			}
 			return result;
 		}
@@ -1250,6 +1423,16 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(values[i]);
 		}
 		
+		@Override
+		public void forEachIndexed(VALUE_BI_FROM_INT_CONSUMER VALUE_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			if(containsNull) action.accept(0, values[nullIndex]);
+			for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(index++, values[i]);
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -1264,9 +1447,9 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		public boolean matchesAny(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return false;
-			if(containsNull && filter.VALUE_TEST_VALUE(values[nullIndex])) return true;
+			if(containsNull && filter.test(values[nullIndex])) return true;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.VALUE_TEST_VALUE(values[i])) return true;
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(values[i])) return true;
 			}
 			return false;
 		}
@@ -1275,9 +1458,9 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		public boolean matchesNone(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			if(containsNull && filter.VALUE_TEST_VALUE(values[nullIndex])) return false;
+			if(containsNull && filter.test(values[nullIndex])) return false;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.VALUE_TEST_VALUE(values[i])) return false;
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(values[i])) return false;
 			}
 			return true;
 		}
@@ -1286,9 +1469,9 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		public boolean matchesAll(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			if(containsNull && !filter.VALUE_TEST_VALUE(values[nullIndex])) return false;
+			if(containsNull && !filter.test(values[nullIndex])) return false;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && !filter.VALUE_TEST_VALUE(values[i])) return false;
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && !filter.test(values[i])) return false;
 			}
 			return true;
 		}
@@ -1321,7 +1504,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		
 #endif
 		@Override
-		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			VALUE_TYPE state = EMPTY_VALUE;
 			boolean empty = true;
@@ -1329,7 +1512,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 				state = values[nullIndex];
 				empty = false;
 			}
-			for(int i = 0;i<size;i++) {
+			for(int i = nullIndex-1;i>=0;i--) {
 				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
 				if(empty) {
 					empty = false;
@@ -1338,18 +1521,18 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 				}
 				state = operator.APPLY_VALUE(state, values[i]);
 			}
-			return state;
+			return empty ? VALUE_OPTIONAL.empty() : VALUE_OPTIONAL.GET_OPTIONAL_VALUE(state);
 		}
 		
 		@Override
-		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_VALUE;
-			if(containsNull && filter.VALUE_TEST_VALUE(values[nullIndex])) return values[nullIndex];
+			if(size() <= 0) return VALUE_OPTIONAL.empty();
+			if(containsNull && filter.test(values[nullIndex])) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(values[nullIndex]);
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.VALUE_TEST_VALUE(values[i])) return values[i];
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(values[i])) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(values[i]);
 			}
-			return EMPTY_VALUE;
+			return VALUE_OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1357,9 +1540,9 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return 0;
 			int result = 0;
-			if(containsNull && filter.VALUE_TEST_VALUE(values[nullIndex])) result++;
+			if(containsNull && filter.test(values[nullIndex])) result++;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.VALUE_TEST_VALUE(values[i])) result++;
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(values[i])) result++;
 			}
 			return result;
 		}
@@ -1378,7 +1561,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		MapEntry entry;
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE next() {
-			return entry = new MapEntry(nextEntry());
+			return entry = new ValueMapEntry(nextEntry());
 		}
 		
 		@Override
@@ -1408,7 +1591,8 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		int lastReturned = -1;
 		int nextIndex = Integer.MIN_VALUE;
 		boolean returnNull = containsNull;
-		LIST KEY_GENERIC_TYPE wrapped = null;
+		KEY_TYPE[] wrapped = null;
+		int wrappedIndex = 0;
 		
 		public boolean hasNext() {
 			if(nextIndex == Integer.MIN_VALUE) {
@@ -1420,7 +1604,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 				{
 					while(true) {
 						if(--pos < 0) {
-							if(wrapped == null || wrapped.size() <= -pos - 1) break;
+							if(wrapped == null || wrappedIndex <= -pos - 1) break;
 							nextIndex = -pos - 1;
 							break;
 						}
@@ -1439,7 +1623,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
-				int value = findIndex(wrapped.GET_KEY(nextIndex));
+				int value = findIndex(wrapped[nextIndex]);
 				if(value < 0) throw new IllegalStateException("Entry ["+nextIndex+"] was removed during Iteration");
 				nextIndex = Integer.MIN_VALUE;
 				return value;
@@ -1458,7 +1642,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			}
 			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				CUSTOM_HASH_MAP.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				CUSTOM_HASH_MAP.this.remove(wrapped[-returnedPos - 1]);
 				lastReturned = -1;
 				return;
 			}
@@ -1481,13 +1665,20 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 					if(last <= startPos ? (last >= slot || slot > startPos) : (last >= slot && slot > startPos)) break;
 					startPos = ++startPos & mask;
 				}
-				if(startPos < last) {
-					if(wrapped == null) wrapped = new ARRAY_LISTBRACES(2);
-					wrapped.add(keys[startPos]);
-				}
+				if(startPos < last) addWrapper(keys[startPos]);
 				keys[last] = current;
 				values[last] = values[startPos];
 			}
 		}
+		
+		private void addWrapper(KEY_TYPE value) {
+			if(wrapped == null) wrapped = NEW_KEY_ARRAY(2);
+			else if(wrappedIndex >= wrapped.length) {
+				KEY_TYPE[] newArray = NEW_KEY_ARRAY(wrapped.length * 2);
+				System.arraycopy(wrapped, 0, newArray, 0, wrapped.length);
+				wrapped = newArray;
+			}
+			wrapped[wrappedIndex++] = value;
+		}
 	}
 }

src/builder/resources/speiger/assets/collections/templates/maps/impl/hash/LinkedOpenHashMap.template

@@ -3,28 +3,47 @@ package speiger.src.collections.PACKAGE.maps.impl.hash;
 import java.util.Arrays;
 import java.util.Map;
 import java.util.NoSuchElementException;
+import java.util.Objects;
+import java.util.Optional;
 import java.util.function.Consumer;
 import java.util.function.BiFunction;
-import java.util.Objects;
+import java.util.function.Predicate;
+#if !TYPE_OBJECT && JDK_TYPE
+import java.util.function.PREDICATE;
+import java.util.OPTIONAL;
+#endif
+#if !SAME_TYPE && JDK_VALUE && !VALUE_OBJECT
+import java.util.function.VALUE_PREDICATE;
+import java.util.VALUE_OPTIONAL;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 #endif
-#if !TYPE_OBJECT || VALUE_BOOLEAN
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
+#if !TYPE_OBJECT && !VALUE_OBJECT
+import speiger.src.collections.ints.functions.consumer.IntObjectConsumer;
+#endif
+#if !SAME_TYPE && !TYPE_INT
+import speiger.src.collections.ints.functions.consumer.VALUE_BI_FROM_INT_CONSUMER;
+#endif
+#if !TYPE_OBJECT && !JDK_TYPE
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
 #endif
+#if !TYPE_INT || !SAME_TYPE
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.ORDERED_MAP;
 import speiger.src.collections.PACKAGE.sets.ABSTRACT_SET;
 import speiger.src.collections.PACKAGE.sets.ORDERED_SET;
-import speiger.src.collections.PACKAGE.sets.SET;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
-import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
+import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ORDERED_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ITERATOR;
 #if !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
@@ -36,17 +55,15 @@ import speiger.src.collections.VALUE_PACKAGE.lists.VALUE_LIST_ITERATOR;
 #if !TYPE_OBJECT && !VALUE_OBJECT || !VALUE_OBJECT
 import speiger.src.collections.objects.functions.consumer.ObjectObjectConsumer;
 #endif
-#if !TYPE_OBJECT || !VALUE_BOOLEAN
-#if !VALUE_OBJECT || SAME_TYPE
-import speiger.src.collections.objects.functions.function.Object2BooleanFunction;
-#endif
-#endif
 #if !SAME_TYPE
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
 
 #endif
+#if !JDK_VALUE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_OPTIONAL;
+#endif
 #endif
 #if !TYPE_OBJECT
 #if !VALUE_OBJECT
@@ -56,7 +73,7 @@ import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOpera
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 import speiger.src.collections.objects.lists.ObjectListIterator;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
-import speiger.src.collections.objects.sets.ObjectSet;
+import speiger.src.collections.objects.sets.ObjectOrderedSet;
 #endif
 import speiger.src.collections.utils.HashUtil;
 
@@ -198,13 +215,13 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			if(containsNull) {
 				VALUE_TYPE lastValue = values[nullIndex];
 				values[nullIndex] = value;
-				moveToFirstIndex(nullIndex);
+				moveToFirstIndex(nullIndex, false);
 				return lastValue;
 			}
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToFirstIndex(nullIndex);
+			moveToFirstIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
@@ -212,7 +229,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 				if(KEY_EQUALS(keys[pos], key)) {
 					VALUE_TYPE lastValue = values[pos];
 					values[pos] = value;
-					moveToFirstIndex(pos);
+					moveToFirstIndex(pos, false);
 					return lastValue;
 				}
 				pos = ++pos & mask;
@@ -220,7 +237,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToFirstIndex(pos);
+			moveToFirstIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -232,13 +249,13 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			if(containsNull) {
 				VALUE_TYPE lastValue = values[nullIndex];
 				values[nullIndex] = value;
-				moveToLastIndex(nullIndex);
+				moveToLastIndex(nullIndex, false);
 				return lastValue;
 			}
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToLastIndex(nullIndex);
+			moveToLastIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
@@ -246,7 +263,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 				if(KEY_EQUALS(keys[pos], key)) {
 					VALUE_TYPE lastValue = values[pos];
 					values[pos] = value;
-					moveToLastIndex(pos);
+					moveToLastIndex(pos, false);
 					return lastValue;
 				}
 				pos = ++pos & mask;
@@ -254,7 +271,55 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToLastIndex(pos);
+			moveToLastIndex(pos, true);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+		return getDefaultReturnValue();
+	}
+	
+	@Override
+	public VALUE_TYPE putFirst(KEY_TYPE key, VALUE_TYPE value) {
+		if(KEY_EQUALS_NULL(key)) {
+			if(containsNull) return values[nullIndex];
+			values[nullIndex] = value;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+			moveToFirstIndex(nullIndex, true);
+		}
+		else {
+			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
+			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
+				if(KEY_EQUALS(keys[pos], key)) return values[pos];
+				pos = ++pos & mask;
+			}
+			keys[pos] = key;
+			values[pos] = value;
+			onNodeAdded(pos);
+			moveToFirstIndex(pos, true);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+		return getDefaultReturnValue();
+	}
+	
+	@Override
+	public VALUE_TYPE putLast(KEY_TYPE key, VALUE_TYPE value) {
+		if(KEY_EQUALS_NULL(key)) {
+			if(containsNull) return values[nullIndex];
+			values[nullIndex] = value;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+			moveToLastIndex(nullIndex, true);
+		}
+		else {
+			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
+			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
+				if(KEY_EQUALS(keys[pos], key)) return values[pos];
+				pos = ++pos & mask;
+			}
+			keys[pos] = key;
+			values[pos] = value;
+			onNodeAdded(pos);
+			moveToLastIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -262,10 +327,10 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	
 	@Override
 	public boolean moveToFirst(KEY_TYPE key) {
-		if(KEY_EQUALS(FIRST_ENTRY_KEY(), key)) return false;
+		if(isEmpty() || KEY_EQUALS(FIRST_ENTRY_KEY(), key)) return false;
 		if(KEY_EQUALS_NULL(key)) {
 			if(containsNull) {
-				moveToFirstIndex(nullIndex);
+				moveToFirstIndex(nullIndex, false);
 				return true;
 			}
 		}
@@ -273,7 +338,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
 			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
 				if(KEY_EQUALS(keys[pos], key)) {
-					moveToFirstIndex(pos);
+					moveToFirstIndex(pos, false);
 					return true;
 				}
 				pos = ++pos & mask;
@@ -284,10 +349,10 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	
 	@Override
 	public boolean moveToLast(KEY_TYPE key) {
-		if(KEY_EQUALS(LAST_ENTRY_KEY(), key)) return false;
+		if(isEmpty() || KEY_EQUALS(LAST_ENTRY_KEY(), key)) return false;
 		if(KEY_EQUALS_NULL(key)) {
 			if(containsNull) {
-				moveToLastIndex(nullIndex);
+				moveToLastIndex(nullIndex, false);
 				return true;
 			}
 		}
@@ -295,7 +360,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
 			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
 				if(KEY_EQUALS(keys[pos], key)) {
-					moveToLastIndex(pos);
+					moveToLastIndex(pos, false);
 					return true;
 				}
 				pos = ++pos & mask;
@@ -308,7 +373,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	public VALUE_TYPE getAndMoveToFirst(KEY_TYPE key) {
 		int index = findIndex(key);
 		if(index < 0) return getDefaultReturnValue();
-		moveToFirstIndex(index);
+		moveToFirstIndex(index, false);
 		return values[index];
 	}
 	
@@ -316,7 +381,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	public VALUE_TYPE getAndMoveToLast(KEY_TYPE key) {
 		int index = findIndex(key);
 		if(index < 0) return getDefaultReturnValue();
-		moveToLastIndex(index);
+		moveToLastIndex(index, false);
 		return values[index];
 	}
 	
@@ -374,8 +439,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	public KEY_TYPE POLL_FIRST_ENTRY_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		int pos = firstIndex;
-		firstIndex = (int)links[pos];
-		if(0 <= firstIndex) links[firstIndex] |= 0xFFFFFFFF00000000L;
+		onNodeRemoved(pos);
 		KEY_TYPE result = keys[pos];
 		size--;
 		if(KEY_EQUALS_NULL(result)) {
@@ -398,8 +462,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	public KEY_TYPE POLL_LAST_ENTRY_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		int pos = lastIndex;
-		lastIndex = (int)(links[pos] >>> 32);
-		if(0 <= lastIndex) links[lastIndex] |= 0xFFFFFFFFL;
+		onNodeRemoved(pos);
 		KEY_TYPE result = keys[pos];
 		size--;
 		if(KEY_EQUALS_NULL(result)) {
@@ -425,21 +488,67 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	}
 	
 	@Override
-	public ObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		return new BasicEntryKV_BRACES(keys[firstIndex], values[firstIndex]);
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		return new BasicEntryKV_BRACES(keys[lastIndex], values[lastIndex]);
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirstEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		int pos = firstIndex;
+		onNodeRemoved(pos);
+		BasicEntry KEY_VALUE_GENERIC_TYPE result = new BasicEntryKV_BRACES(keys[pos], values[pos]);
+		size--;
+		if(KEY_EQUALS_NULL(result.ENTRY_KEY())) {
+			containsNull = false;
+			keys[nullIndex] = EMPTY_KEY_VALUE;
+			values[nullIndex] = EMPTY_VALUE;
+		}
+		else shiftKeys(pos);
+		if(nullIndex > minCapacity && size < maxFill / 4 && nullIndex > HashUtil.DEFAULT_MIN_CAPACITY) rehash(nullIndex / 2);
+		return result;
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		int pos = lastIndex;
+		onNodeRemoved(pos);
+		BasicEntry KEY_VALUE_GENERIC_TYPE result = new BasicEntryKV_BRACES(keys[pos], values[pos]);
+		size--;
+		if(KEY_EQUALS_NULL(result.ENTRY_KEY())) {
+			containsNull = false;
+			keys[nullIndex] = EMPTY_KEY_VALUE;
+			values[nullIndex] = EMPTY_VALUE;
+		}
+		else shiftKeys(pos);
+		if(nullIndex > minCapacity && size < maxFill / 4 && nullIndex > HashUtil.DEFAULT_MIN_CAPACITY) rehash(nullIndex / 2);
+		return result;
+	}
+	
+	@Override
+	public ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
 		if(entrySet == null) entrySet = new MapEntrySet();
-		return entrySet;
+		return (ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE>)entrySet;
 	}
 	
 	@Override
-	public SET KEY_GENERIC_TYPE keySet() {
+	public ORDERED_SET KEY_GENERIC_TYPE keySet() {
 		if(keySet == null) keySet = new KeySet();
-		return keySet;
+		return (ORDERED_SET KEY_GENERIC_TYPE)keySet;
 	}
 	
 	@Override
-	public VALUE_COLLECTION VALUE_GENERIC_TYPE values() {
+	public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE values() {
 		if(valuesC == null) valuesC = new Values();
-		return valuesC;
+		return (VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE)valuesC;
 	}
 	
 	@Override
@@ -460,7 +569,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	@Override
 	public void clearAndTrim(int size) {
 		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-		if(request >= size) {
+		if(request >= nullIndex) {
 			clear();
 			return;
 		}
@@ -475,8 +584,8 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		containsNull = false;
 	}
 	
-	protected void moveToFirstIndex(int startPos) {
-		if(size == 1 || firstIndex == startPos) return;
+	protected void moveToFirstIndex(int startPos, boolean adding) {
+		if(size == (adding ? 0 : 1) || firstIndex == startPos) return;
 		if(lastIndex == startPos) {
 			lastIndex = (int)(links[startPos] >>> 32);
 			links[lastIndex] |= 0xFFFFFFFFL;
@@ -493,8 +602,8 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		firstIndex = startPos;
 	}
 	
-	protected void moveToLastIndex(int startPos) {
-		if(size == 1 || lastIndex == startPos) return;
+	protected void moveToLastIndex(int startPos, boolean adding) {
+		if(size == (adding ? 0 : 1) || lastIndex == startPos) return;
 		if(firstIndex == startPos) {
 			firstIndex = (int)links[startPos];
 			links[lastIndex] |= 0xFFFFFFFF00000000L;
@@ -608,6 +717,10 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	}
 	
 	private class MapEntrySet extends AbstractObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> implements ORDERED_MAP.FastOrderedSet KEY_VALUE_GENERIC_TYPE {
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -624,24 +737,24 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE first() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getFirst() {
 			return new BasicEntryKV_BRACES(FIRST_ENTRY_KEY(), FIRST_ENTRY_VALUE());
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE last() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getLast() {
 			return new BasicEntryKV_BRACES(LAST_ENTRY_KEY(), LAST_ENTRY_VALUE());
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirst() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeFirst() {
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES(FIRST_ENTRY_KEY(), FIRST_ENTRY_VALUE());
 			POLL_FIRST_ENTRY_KEY();
 			return entry;
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLast() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeLast() {
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES(LAST_ENTRY_KEY(), LAST_ENTRY_VALUE());
 			POLL_LAST_ENTRY_KEY();
 			return entry;
@@ -649,7 +762,12 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		
 		@Override
 		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iterator() {
-			return new EntryIterator();
+			return new EntryIterator(true);
+		}
+		
+		@Override
+		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> reverseIterator() {
+			return new EntryIterator(false);
 		}
 		
 		@Override
@@ -659,7 +777,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		
 		@Override
 		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> fastIterator() {
-			return new FastEntryIterator();
+			return new FastEntryIterator(true);
 		}
 		
 		@Override
@@ -674,70 +792,82 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			int index = firstIndex;
 			while(index != -1){
-				action.accept(new BasicEntryKV_BRACES(keys[index], values[index]));
+				action.accept(new ValueMapEntry(index));
 				index = (int)links[index];
 			}
 		}
 		
 		@Override
 		public void fastForEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1){
-				entry.set(keys[index], values[index]);
+				entry.set(index);
 				action.accept(entry);
 				index = (int)links[index];
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(IntObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			int count = 0;
+			int index = firstIndex;
+			while(index != -1) {
+				action.accept(count++, new ValueMapEntry(index));
+				index = (int)links[index];
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
 			int index = firstIndex;
 			while(index != -1) {
-				action.accept(input, new BasicEntryKV_BRACES(keys[index], values[index]));
+				action.accept(input, new ValueMapEntry(index));
 				index = (int)links[index];
 			}
 		}
 		
 		@Override
-		public boolean matchesAny(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAny(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return false;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) return true;
+				entry.set(index);
+				if(filter.test(entry)) return true;
 				index = (int)links[index];
 			}
 			return false;
 		}
 		
 		@Override
-		public boolean matchesNone(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesNone(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) return false;
+				entry.set(index);
+				if(filter.test(entry)) return false;
 				index = (int)links[index];
 			}
 			return true;
 		}
 		
 		@Override
-		public boolean matchesAll(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAll(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
-				if(!filter.getBoolean(entry)) return false;
+				entry.set(index);
+				if(!filter.test(entry)) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -749,14 +879,14 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			E state = identity;
 			int index = firstIndex;
 			while(index != -1) {
-				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[index]));
+				state = operator.apply(state, new ValueMapEntry(index));
 				index = (int)links[index];
 			}
 			return state;
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
 			Objects.requireNonNull(operator);
 			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
 			boolean empty = true;
@@ -764,40 +894,40 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			while(index != -1) {
 				if(empty) {
 					empty = false;
-					state = new BasicEntryKV_BRACES(keys[index], values[index]);
+					state = new ValueMapEntry(index);
 					index = (int)links[index];
 					continue;
 				}
-				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[index]));
+				state = operator.apply(state, new ValueMapEntry(index));
 				index = (int)links[index];
 			}
-			return state;
+			return empty ? Optional.empty() : Optional.ofNullable(state);
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> findFirst(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return null;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			if(size() <= 0) return Optional.empty();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) return entry;
+				entry.set(index);
+				if(filter.test(entry)) return Optional.ofNullable(entry);
 				index = (int)links[index];
 			}
-			return null;
+			return Optional.empty();
 		}
 		
 		@Override
-		public int count(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public int count(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return 0;
 			int result = 0;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1) {
-				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) result++;
+				entry.set(index);
+				if(filter.test(entry)) result++;
 				index = (int)links[index];
 			}
 			return result;
@@ -878,6 +1008,12 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		@Override
 		public boolean add(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 
+		@Override
+		public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 
@@ -896,7 +1032,12 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		
 		@Override
 		public LIST_ITERATOR KEY_GENERIC_TYPE iterator() {
-			return new KeyIterator();
+			return new KeyIterator(true);
+		}
+		
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE reverseIterator() {
+			return new KeyIterator(false);
 		}
 		
 		@Override
@@ -918,22 +1059,22 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		}
 		
 		@Override
-		public KEY_TYPE FIRST_KEY() {
+		public KEY_TYPE GET_FIRST_KEY() {
 			return FIRST_ENTRY_KEY();
 		}
 		
 		@Override
-		public KEY_TYPE POLL_FIRST_KEY() {
+		public KEY_TYPE REMOVE_FIRST_KEY() {
 			return POLL_FIRST_ENTRY_KEY();
 		}
 
 		@Override
-		public KEY_TYPE LAST_KEY() {
+		public KEY_TYPE GET_LAST_KEY() {
 			return LAST_ENTRY_KEY();
 		}
 
 		@Override
-		public KEY_TYPE POLL_LAST_KEY() {
+		public KEY_TYPE REMOVE_LAST_KEY() {
 			return POLL_LAST_ENTRY_KEY();
 		}
 		
@@ -946,6 +1087,18 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			int count = 0;
+			int index = firstIndex;
+			while(index != -1){
+				action.accept(count++, keys[index]);
+				index = (int)links[index];
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -963,7 +1116,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			if(size() <= 0) return false;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) return true;
+				if(filter.test(keys[index])) return true;
 				index = (int)links[index];
 			}
 			return false;
@@ -975,7 +1128,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) return false;
+				if(filter.test(keys[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -987,7 +1140,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1) {
-				if(!filter.TEST_VALUE(keys[index])) return false;
+				if(!filter.test(keys[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -1021,7 +1174,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		
 #endif
 		@Override
-		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		public OPTIONAL KEY_GENERIC_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			KEY_TYPE state = EMPTY_KEY_VALUE;
 			boolean empty = true;
@@ -1036,19 +1189,19 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 				state = operator.APPLY_KEY_VALUE(state, keys[index]);
 				index = (int)links[index];
 			}
-			return state;
+			return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 		}
 		
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_KEY_VALUE;
+			if(size() <= 0) return OPTIONAL.empty();
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) return keys[index];
+				if(filter.test(keys[index])) return OPTIONAL.GET_OPTIONAL(keys[index]);
 				index = (int)links[index];
 			}
-			return EMPTY_KEY_VALUE;
+			return OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1058,48 +1211,57 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			int result = 0;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) result++;
+				if(filter.test(keys[index])) result++;
 				index = (int)links[index];
 			}
 			return result;
 		}
 	}
 	
-	private class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE {
+	private class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE implements VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE {
 #if VALUE_OBJECT
 		@Override
 		@Deprecated
-		public boolean contains(Object e) {
-			return containsValue(e);
-		}
+		public boolean contains(Object e) { return containsValue(e); }
 		
 #else
 		@Override
-		public boolean contains(VALUE_TYPE e) {
-			return containsValue(e);
-		}
+		public boolean contains(VALUE_TYPE e) { return containsValue(e); }
 		
 #endif
 		@Override
-		public boolean add(VALUE_TYPE o) {
-			throw new UnsupportedOperationException();
-		}
-
+		public boolean add(VALUE_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
-		public VALUE_ITERATOR VALUE_GENERIC_TYPE iterator() {
-			return new ValueIterator();
-		}
-		
+		public VALUE_ITERATOR VALUE_GENERIC_TYPE iterator() { return new ValueIterator(true); }
 		@Override
-		public int size() {
-			return LINKED_HASH_MAP.this.size();
-		}
-		
+		public int size() { return LINKED_HASH_MAP.this.size(); }
 		@Override
-		public void clear() {
-			LINKED_HASH_MAP.this.clear();
+		public void clear() { LINKED_HASH_MAP.this.clear(); }
+		@Override
+		public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE reversed() { return new VALUE_ABSTRACT_COLLECTION.VALUE_REVERSED_ORDERED_COLLECTIONVALUE_BRACES(this, this::reverseIterator); }
+		private VALUE_ITERATOR VALUE_GENERIC_TYPE reverseIterator() {
+			return new ValueIterator(false);
+		}
+		@Override
+		public void addFirst(VALUE_TYPE e) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(VALUE_TYPE e) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE VALUE_GET_FIRST_KEY() { return FIRST_ENTRY_VALUE(); }
+		@Override
+		public VALUE_TYPE VALUE_REMOVE_FIRST_KEY() {
+			VALUE_TYPE result = FIRST_ENTRY_VALUE();
+			POLL_FIRST_ENTRY_KEY();
+			return result; 
+		}
+		@Override
+		public VALUE_TYPE VALUE_GET_LAST_KEY() { return LAST_ENTRY_VALUE(); }
+		@Override
+		public VALUE_TYPE VALUE_REMOVE_LAST_KEY() {
+			VALUE_TYPE result = LAST_ENTRY_VALUE();
+			POLL_LAST_ENTRY_KEY();
+			return result; 
 		}
-		
 		@Override
 		public void forEach(VALUE_CONSUMER VALUE_SUPER_GENERIC_TYPE action) {
 			Objects.requireNonNull(action);
@@ -1110,6 +1272,18 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(VALUE_BI_FROM_INT_CONSUMER VALUE_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			int count = 0;
+			int index = firstIndex;
+			while(index != -1){
+				action.accept(count++, values[index]);
+				index = (int)links[index];
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -1127,7 +1301,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			if(size() <= 0) return false;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) return true;
+				if(filter.test(values[index])) return true;
 				index = (int)links[index];
 			}
 			return false;
@@ -1139,7 +1313,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1) {
-				if(filter.VALUE_TEST_VALUE(values[index])) return false;
+				if(filter.test(values[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -1151,7 +1325,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1) {
-				if(!filter.VALUE_TEST_VALUE(values[index])) return false;
+				if(!filter.test(values[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -1185,7 +1359,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		
 #endif
 		@Override
-		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			VALUE_TYPE state = EMPTY_VALUE;
 			boolean empty = true;
@@ -1200,19 +1374,19 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 				state = operator.APPLY_VALUE(state, values[index]);
 				index = (int)links[index];
 			}
-			return state;
+			return empty ? VALUE_OPTIONAL.empty() : VALUE_OPTIONAL.GET_OPTIONAL_VALUE(state);
 		}
 		
 		@Override
-		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_VALUE;
+			if(size() <= 0) return VALUE_OPTIONAL.empty();
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) return values[index];
+				if(filter.test(values[index])) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(values[index]);
 				index = (int)links[index];
 			}
-			return EMPTY_VALUE;
+			return VALUE_OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1222,7 +1396,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			int result = 0;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) result++;
+				if(filter.test(values[index])) result++;
 				index = (int)links[index];
 			}
 			return result;
@@ -1232,7 +1406,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	private class FastEntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
 		MapEntry entry = new MapEntry();
 		
-		public FastEntryIterator() {}
+		public FastEntryIterator(boolean start) { super(start); }
 		public FastEntryIterator(KEY_TYPE from) {
 			super(from);
 		}
@@ -1259,19 +1433,19 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	private class EntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
 		MapEntry entry;
 		
-		public EntryIterator() {}
+		public EntryIterator(boolean start) { super(start); }
 		public EntryIterator(KEY_TYPE from) {
 			super(from);
 		}
 		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE next() {
-			return entry = new MapEntry(nextEntry());
+			return entry = new ValueMapEntry(nextEntry());
 		}
 		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE previous() {
-			return entry = new MapEntry(previousEntry());
+			return entry = new ValueMapEntry(previousEntry());
 		}
 		
 		@Override
@@ -1289,7 +1463,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	
 	private class KeyIterator extends MapIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
 		
-		public KeyIterator() {}
+		public KeyIterator(boolean start) { super(start); }
 		public KeyIterator(KEY_TYPE from) {
 			super(from);
 		}
@@ -1311,7 +1485,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	}
 	
 	private class ValueIterator extends MapIterator implements VALUE_LIST_ITERATOR VALUE_GENERIC_TYPE {
-		public ValueIterator() {}
+		public ValueIterator(boolean start) { super(start); }
 		
 		@Override
 		public VALUE_TYPE VALUE_PREVIOUS() {
@@ -1331,13 +1505,16 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	}
 	
 	private class MapIterator {
+		boolean forward;
 		int previous = -1;
 		int next = -1;
 		int current = -1;
 		int index = 0;
 		
-		MapIterator() {
-			next = firstIndex;
+		MapIterator(boolean start) {
+			this.forward = start;
+			if(start) next = firstIndex;
+			else previous = lastIndex;
 		}
 		
 		MapIterator(KEY_TYPE from) {
@@ -1368,11 +1545,11 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		}
 		
 		public boolean hasNext() {
-			return next != -1;
+			return (forward ? next : previous) != -1;
 		}
 
 		public boolean hasPrevious() {
-			return previous != -1;
+			return (forward ? previous : next) != -1;
 		}
 		
 		public int nextIndex() {
@@ -1432,20 +1609,30 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		
 		public int previousEntry() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			current = previous;
-			previous = (int)(links[current] >> 32);
-			next = current;
+			if(forward) moveBackwards();
+			else moveForwards();
 			if(index >= 0) index--;
 			return current;
 		}
 		
 		public int nextEntry() {
 			if(!hasNext()) throw new NoSuchElementException();
+			if(forward) moveForwards();
+			else moveBackwards();
+			if(index >= 0) index++;
+			return current;
+		}
+		
+		private void moveBackwards() {
+			current = previous;
+			previous = (int)(links[current] >> 32);
+			next = current;
+		}
+		
+		private void moveForwards() {
 			current = next;
 			next = (int)(links[current]);
 			previous = current;
-			if(index >= 0) index++;
-			return current;
 		}
 		
 		private void ensureIndexKnown() {

src/builder/resources/speiger/assets/collections/templates/maps/impl/hash/OpenHashMap.template

@@ -5,28 +5,49 @@ import java.util.ConcurrentModificationException;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+import java.util.Optional;
 import java.util.function.Consumer;
 import java.util.function.BiFunction;
+import java.util.function.Predicate;
+#if !TYPE_OBJECT && JDK_TYPE
+import java.util.function.PREDICATE;
+import java.util.OPTIONAL;
+#endif
+#if !SAME_TYPE && JDK_VALUE && !VALUE_OBJECT
+import java.util.function.VALUE_PREDICATE;
+import java.util.VALUE_OPTIONAL;
+#endif
 
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 #endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
+#if !TYPE_OBJECT && !VALUE_OBJECT
+import speiger.src.collections.ints.functions.consumer.IntObjectConsumer;
+#endif
+#if !SAME_TYPE && !TYPE_INT
+import speiger.src.collections.ints.functions.consumer.VALUE_BI_FROM_INT_CONSUMER;
+#endif
+#if !TYPE_INT || !SAME_TYPE
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
+#endif
+#if !VALUE_BOOLEAN || !JDK_TYPE
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 #if !SAME_TYPE
 import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
 #endif
-#if !TYPE_OBJECT && !VALUE_BOOLEAN
+#if !TYPE_OBJECT && !JDK_TYPE
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#if !VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
 #endif
-import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
-import speiger.src.collections.PACKAGE.lists.LIST;
+#endif
 import speiger.src.collections.PACKAGE.maps.abstracts.ABSTRACT_MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
-import speiger.src.collections.PACKAGE.utils.maps.MAPS;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.sets.ABSTRACT_SET;
 import speiger.src.collections.PACKAGE.sets.SET;
@@ -51,17 +72,15 @@ import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOpera
 #if !TYPE_OBJECT && !VALUE_OBJECT || !VALUE_OBJECT
 import speiger.src.collections.objects.functions.consumer.ObjectObjectConsumer;
 #endif
-#if !TYPE_OBJECT || !VALUE_BOOLEAN
-#if !VALUE_OBJECT || SAME_TYPE
-import speiger.src.collections.objects.functions.function.Object2BooleanFunction;
-#endif
-#endif
 #if !SAME_TYPE
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
 #endif
 
+#if !JDK_VALUE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_OPTIONAL;
+#endif
 #endif
 import speiger.src.collections.objects.collections.ObjectIterator;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
@@ -245,6 +264,11 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			insert(-slot-1, key, value);
 			return getDefaultReturnValue();
 		}
+		else if(VALUE_EQUALS(values[slot], getDefaultReturnValue())) {
+			VALUE_TYPE oldValue = values[slot];
+			values[slot] = value;
+			return oldValue;
+		}
 		return values[slot];
 	}
 	
@@ -362,7 +386,11 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	@Override
 	public boolean remove(Object key, Object value) {
 		Objects.requireNonNull(value);
+#if TYPE_OBJECT
 		if(key == null) {
+#else
+		if(key == null || (key instanceof CLASS_TYPE && KEY_EQUALS_NULL(CLASS_TO_KEY(key)))) {
+#endif
 			if(containsNull && EQUALS_VALUE_TYPE(values[nullIndex], value)) {
 				removeNullIndex();
 				return true;
@@ -476,6 +504,95 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		int index = findIndex(key);
 		if(index < 0) {
 			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			insert(-index-1, key, newValue);
+			return newValue;
+		}
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			removeIndex(index);
+			return newValue;
+		}
+#endif
+		values[index] = newValue;
+		return newValue;
+	}
+		
+	@Override
+	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+		int index = findIndex(key);
+		if(index < 0) {
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			insert(-index-1, key, newValue);
+			return newValue;
+		}
+		VALUE_TYPE newValue = values[index];
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = mappingFunction.APPLY(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+#endif
+		return newValue;
+	}
+	
+	@Override
+	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+		Objects.requireNonNull(valueProvider);
+		int index = findIndex(key);
+		if(index < 0) {
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			insert(-index-1, key, newValue);
+			return newValue;
+		}
+		VALUE_TYPE newValue = values[index];
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = valueProvider.VALUE_SUPPLY_GET();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+#endif
+		return newValue;
+	}
+		
+	@Override
+	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+		int index = findIndex(key);
+#if !VALUE_OBJECT
+		if(index < 0) return getDefaultReturnValue();
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+#else
+		if(index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue())) return getDefaultReturnValue();
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			removeIndex(index);
+			return newValue;
+		}
+#endif
+		values[index] = newValue;
+		return newValue;
+	}
+	
+#if !VALUE_OBJECT
+	@Override
+	public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+		int index = findIndex(key);
+		if(index < 0) {
+			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			insert(-index-1, key, newValue);
 			return newValue;
@@ -490,18 +607,18 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	}
 	
 	@Override
-	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+	public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 		int index = findIndex(key);
 		if(index < 0) {
-			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			insert(-index-1, key, newValue);
 			return newValue;
 		}
 		VALUE_TYPE newValue = values[index];
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
-			newValue = mappingFunction.GET_VALUE(key);
+			newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			values[index] = newValue;
 		}
@@ -509,18 +626,18 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	}
 	
 	@Override
-	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+	public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
 		Objects.requireNonNull(valueProvider);
 		int index = findIndex(key);
 		if(index < 0) {
-			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			insert(-index-1, key, newValue);
 			return newValue;
 		}
 		VALUE_TYPE newValue = values[index];
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
-			newValue = valueProvider.VALUE_GET_KEY();
+			newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			values[index] = newValue;
 		}
@@ -528,7 +645,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	}
 	
 	@Override
-	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+	public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 		int index = findIndex(key);
 		if(index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue())) return getDefaultReturnValue();
@@ -541,6 +658,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		return newValue;
 	}
 	
+#endif
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
@@ -561,7 +679,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	@Override
 	public void BULK_MERGE(MAP KEY_VALUE_GENERIC_TYPE m, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
-		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
+		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : getFastIterable(m)) {
 			KEY_TYPE key = entry.ENTRY_KEY();
 			int index = findIndex(key);
 			VALUE_TYPE newValue = index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
@@ -589,7 +707,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	@Override
 	public boolean trim(int size) {
 		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-		if(request >= size || this.size > Math.min((int)Math.ceil(request * loadFactor), request - 1)) return false;
+		if(request >= nullIndex || this.size >= Math.min((int)Math.ceil(request * loadFactor), request - 1)) return false;
 		try {
 			rehash(request);
 		}
@@ -600,7 +718,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	@Override
 	public void clearAndTrim(int size) {
 		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-		if(request >= size) {
+		if(request >= nullIndex) {
 			clear();
 			return;
 		}
@@ -629,6 +747,9 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 #endif
 	protected int findIndex(Object key) {
 		if(key == null) return containsNull ? nullIndex : -(nullIndex + 1);
+#if !TYPE_OBJECT
+		if(key instanceof CLASS_TYPE && KEY_EQUALS_NULL(CLASS_TO_KEY(key))) return containsNull ? nullIndex : -(nullIndex + 1);
+#endif
 		int pos = HashUtil.mix(key.hashCode()) & mask;
 		KEY_TYPE current = keys[pos];
 		if(KEY_EQUALS_NOT_NULL(current)) {
@@ -725,6 +846,33 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		}
 	}
 	
+	protected class ValueMapEntry extends MapEntry {
+		protected KEY_TYPE key;
+		protected VALUE_TYPE value;
+		
+		public ValueMapEntry(int index) {
+			super(index);
+			key = keys[index];
+			value = values[index];
+		}
+		
+		@Override
+		public KEY_TYPE ENTRY_KEY() {
+			return key;
+		}
+
+		@Override
+		public VALUE_TYPE ENTRY_VALUE() {
+			return value;
+		}
+		
+		@Override
+		public VALUE_TYPE setValue(VALUE_TYPE value) {
+			this.value = value;
+			return super.setValue(value);
+		}
+	}
+	
 	protected class MapEntry implements MAP.Entry KEY_VALUE_GENERIC_TYPE, Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE> {
 		public int index = -1;
 		
@@ -733,6 +881,10 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			this.index = index;
 		}
 		
+		void set(int index) {
+			this.index = index;
+		}
+		
 		@Override
 		public KEY_TYPE ENTRY_KEY() {
 			return keys[index];
@@ -755,19 +907,19 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			if(obj instanceof Map.Entry) {
 				if(obj instanceof MAP.Entry) {
 					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)obj;
-					return KEY_EQUALS(keys[index], entry.ENTRY_KEY()) && VALUE_EQUALS(values[index], entry.ENTRY_VALUE());
+					return KEY_EQUALS(ENTRY_KEY(), entry.ENTRY_KEY()) && VALUE_EQUALS(ENTRY_VALUE(), entry.ENTRY_VALUE());
 				}
 				Map.Entry<?, ?> entry = (Map.Entry<?, ?>)obj;
 				Object key = entry.getKey();
 				Object value = entry.getValue();
 #if TYPE_OBJECT && VALUE_OBJECT
-				return KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], value);
+				return KEY_EQUALS(ENTRY_KEY(), key) && VALUE_EQUALS(ENTRY_VALUE(), value);
 #else if TYPE_OBJECT
-				return value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], CLASS_TO_VALUE(value));
+				return value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(ENTRY_KEY(), key) && VALUE_EQUALS(ENTRY_VALUE(), CLASS_TO_VALUE(value));
 #else if VALUE_OBJECT
-				return key instanceof CLASS_TYPE && KEY_EQUALS(keys[index], CLASS_TO_KEY(key)) && VALUE_EQUALS(values[index], value);
+				return key instanceof CLASS_TYPE && KEY_EQUALS(ENTRY_KEY(), CLASS_TO_KEY(key)) && VALUE_EQUALS(ENTRY_VALUE(), value);
 #else
-				return key instanceof CLASS_TYPE && value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], CLASS_TO_KEY(key)) && VALUE_EQUALS(values[index], CLASS_TO_VALUE(value));
+				return key instanceof CLASS_TYPE && value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(ENTRY_KEY(), CLASS_TO_KEY(key)) && VALUE_EQUALS(ENTRY_VALUE(), CLASS_TO_VALUE(value));
 #endif
 			}
 			return false;
@@ -775,12 +927,12 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		
 		@Override
 		public int hashCode() {
-			return KEY_TO_HASH(keys[index]) ^ VALUE_TO_HASH(values[index]);
+			return KEY_TO_HASH(ENTRY_KEY()) ^ VALUE_TO_HASH(ENTRY_VALUE());
 		}
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(ENTRY_KEY()) + "=" + VALUE_TO_STRING(ENTRY_VALUE());
 		}
 	}
 	
@@ -797,85 +949,95 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		
 		@Override
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
-			if(containsNull) action.accept(new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]));
+			if(containsNull) action.accept(new ValueMapEntry(nullIndex));
 			for(int i = nullIndex-1;i>=0;i--)
-				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(new BasicEntryKV_BRACES(keys[i], values[i]));
+				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(new ValueMapEntry(i));
 		}
 		
 		@Override
 		public void fastForEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
+				entry.set(nullIndex);
 				action.accept(entry);
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(KEY_EQUALS_NOT_NULL(keys[i])) {
-					entry.set(keys[i], values[i]);
+					entry.set(i);
 					action.accept(entry);
 				}
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(IntObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			if(containsNull) action.accept(0, new ValueMapEntry(nullIndex));
+			for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(index++, new ValueMapEntry(i));
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
-			if(containsNull) action.accept(input, new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]));
+			if(containsNull) action.accept(input, new ValueMapEntry(nullIndex));
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(input, new BasicEntryKV_BRACES(keys[i], values[i]));
+				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(input, new ValueMapEntry(i));
 			}
 		}
 		
 		@Override
-		public boolean matchesAny(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAny(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return false;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
-				if(filter.getBoolean(entry)) return true;
+				entry.set(nullIndex);
+				if(filter.test(entry)) return true;
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(KEY_EQUALS_NOT_NULL(keys[i])) {
-					entry.set(keys[i], values[i]);
-					if(filter.getBoolean(entry)) return true;
+					entry.set(i);
+					if(filter.test(entry)) return true;
 				}
 			}
 			return false;
 		}
 		
 		@Override
-		public boolean matchesNone(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesNone(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
-				if(filter.getBoolean(entry)) return false;
+				entry.set(nullIndex);
+				if(filter.test(entry)) return false;
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(KEY_EQUALS_NOT_NULL(keys[i])) {
-					entry.set(keys[i], values[i]);
-					if(filter.getBoolean(entry)) return false;
+					entry.set(i);
+					if(filter.test(entry)) return false;
 				}
 			}
 			return true;
 		}
 		
 		@Override
-		public boolean matchesAll(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAll(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
-				if(!filter.getBoolean(entry)) return false;
+				entry.set(nullIndex);
+				if(!filter.test(entry)) return false;
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(KEY_EQUALS_NOT_NULL(keys[i])) {
-					entry.set(keys[i], values[i]);
-					if(!filter.getBoolean(entry)) return false;
+					entry.set(i);
+					if(!filter.test(entry)) return false;
 				}
 			}
 			return true;
@@ -885,67 +1047,67 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
 			Objects.requireNonNull(operator);
 			E state = identity;
-			if(containsNull) state = operator.apply(state, new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]));
+			if(containsNull) state = operator.apply(state, new ValueMapEntry(nullIndex));
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(KEY_EQUALS_NULL(keys[i])) continue;
-				state = operator.apply(state, new BasicEntryKV_BRACES(keys[i], values[i]));
+				state = operator.apply(state, new ValueMapEntry(i));
 			}
 			return state;
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
 			Objects.requireNonNull(operator);
 			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
 			boolean empty = true;
 			if(containsNull) {
-				state = new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]);
+				state = new ValueMapEntry(nullIndex);
 				empty = false;
 			}
-			for(int i = 0;i<size;i++) {
+			for(int i = nullIndex-1;i>=0;i--) {
 				if(KEY_EQUALS_NULL(keys[i])) continue;
 				if(empty) {
 					empty = false;
-					state = new BasicEntryKV_BRACES(keys[i], values[i]);
+					state = new ValueMapEntry(i);
 					continue;
 				}
-				state = operator.apply(state, new BasicEntryKV_BRACES(keys[i], values[i]));
+				state = operator.apply(state, new ValueMapEntry(i));
 			}
-			return state;
+			return empty ? Optional.empty() : Optional.ofNullable(state);
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> findFirst(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return null;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			if(size() <= 0) return Optional.empty();
+			MapEntry entry = new MapEntry();
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
-				if(filter.getBoolean(entry)) return entry;
+				entry.set(nullIndex);
+				if(filter.test(entry)) return Optional.ofNullable(entry);
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(KEY_EQUALS_NOT_NULL(keys[i])) {
-					entry.set(keys[i], values[i]);
-					if(filter.getBoolean(entry)) return entry;
+					entry.set(i);
+					if(filter.test(entry)) return Optional.ofNullable(entry);
 				}
 			}
-			return null;
+			return Optional.empty();
 		}
 		
 		@Override
-		public int count(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public int count(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return 0;
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int result = 0;
 			if(containsNull) {
-				entry.set(keys[nullIndex], values[nullIndex]);
-				if(filter.getBoolean(entry)) result++;
+				entry.set(nullIndex);
+				if(filter.test(entry)) result++;
 			}
 			for(int i = nullIndex-1;i>=0;i--) {
 				if(KEY_EQUALS_NOT_NULL(keys[i])) {
-					entry.set(keys[i], values[i]);
-					if(filter.getBoolean(entry)) result++;
+					entry.set(i);
+					if(filter.test(entry)) result++;
 				}
 			}
 			return result;
@@ -1050,6 +1212,16 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(keys[i]);
 		}
 		
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			if(containsNull) action.accept(0, keys[nullIndex]);
+			for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(index++, keys[i]);
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -1064,9 +1236,9 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return false;
-			if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return true;
+			if(containsNull && filter.test(keys[nullIndex])) return true;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.TEST_VALUE(keys[i])) return true;
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(keys[i])) return true;
 			}
 			return false;
 		}
@@ -1075,9 +1247,9 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return false;
+			if(containsNull && filter.test(keys[nullIndex])) return false;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.TEST_VALUE(keys[i])) return false;
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(keys[i])) return false;
 			}
 			return true;
 		}
@@ -1086,9 +1258,9 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			if(containsNull && !filter.TEST_VALUE(keys[nullIndex])) return false;
+			if(containsNull && !filter.test(keys[nullIndex])) return false;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i]) && !filter.TEST_VALUE(keys[i])) return false;
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && !filter.test(keys[i])) return false;
 			}
 			return true;
 		}
@@ -1121,7 +1293,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		
 #endif
 		@Override
-		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		public OPTIONAL KEY_GENERIC_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			KEY_TYPE state = EMPTY_KEY_VALUE;
 			boolean empty = true;
@@ -1129,7 +1301,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 				state = keys[nullIndex];
 				empty = false;
 			}
-			for(int i = 0;i<size;i++) {
+			for(int i = nullIndex-1;i>=0;i--) {
 				if(KEY_EQUALS_NULL(keys[i])) continue;
 				if(empty) {
 					empty = false;
@@ -1138,18 +1310,18 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 				}
 				state = operator.APPLY_KEY_VALUE(state, keys[i]);
 			}
-			return state;
+			return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 		}
 		
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_KEY_VALUE;
-			if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return keys[nullIndex];
+			if(size() <= 0) return OPTIONAL.empty();
+			if(containsNull && filter.test(keys[nullIndex])) return OPTIONAL.GET_OPTIONAL(keys[nullIndex]);
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.TEST_VALUE(keys[i])) return keys[i];
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(keys[i])) return OPTIONAL.GET_OPTIONAL(keys[i]);
 			}
-			return EMPTY_KEY_VALUE;
+			return OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1157,9 +1329,9 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return 0;
 			int result = 0;
-			if(containsNull && filter.TEST_VALUE(keys[nullIndex])) result++;
+			if(containsNull && filter.test(keys[nullIndex])) result++;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.TEST_VALUE(keys[i])) result++;
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(keys[i])) result++;
 			}
 			return result;
 		}
@@ -1206,6 +1378,16 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(values[i]);
 		}
 		
+		@Override
+		public void forEachIndexed(VALUE_BI_FROM_INT_CONSUMER VALUE_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			if(containsNull) action.accept(0, values[nullIndex]);
+			for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(index++, values[i]);
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -1220,9 +1402,9 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		public boolean matchesAny(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return false;
-			if(containsNull && filter.VALUE_TEST_VALUE(values[nullIndex])) return true;
+			if(containsNull && filter.test(values[nullIndex])) return true;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.VALUE_TEST_VALUE(values[i])) return true;
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(values[i])) return true;
 			}
 			return false;
 		}
@@ -1231,9 +1413,9 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		public boolean matchesNone(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			if(containsNull && filter.VALUE_TEST_VALUE(values[nullIndex])) return false;
+			if(containsNull && filter.test(values[nullIndex])) return false;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.VALUE_TEST_VALUE(values[i])) return false;
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(values[i])) return false;
 			}
 			return true;
 		}
@@ -1242,9 +1424,9 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		public boolean matchesAll(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
-			if(containsNull && !filter.VALUE_TEST_VALUE(values[nullIndex])) return false;
+			if(containsNull && !filter.test(values[nullIndex])) return false;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i]) && !filter.VALUE_TEST_VALUE(values[i])) return false;
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && !filter.test(values[i])) return false;
 			}
 			return true;
 		}
@@ -1277,7 +1459,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		
 #endif
 		@Override
-		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			VALUE_TYPE state = EMPTY_VALUE;
 			boolean empty = true;
@@ -1285,7 +1467,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 				state = values[nullIndex];
 				empty = false;
 			}
-			for(int i = 0;i<size;i++) {
+			for(int i = nullIndex-1;i>=0;i--) {
 				if(KEY_EQUALS_NULL(keys[i])) continue;
 				if(empty) {
 					empty = false;
@@ -1294,18 +1476,18 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 				}
 				state = operator.APPLY_VALUE(state, values[i]);
 			}
-			return state;
+			return empty ? VALUE_OPTIONAL.empty() : VALUE_OPTIONAL.GET_OPTIONAL_VALUE(state);
 		}
 		
 		@Override
-		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_VALUE;
-			if(containsNull && filter.VALUE_TEST_VALUE(values[nullIndex])) return values[nullIndex];
+			if(size() <= 0) return VALUE_OPTIONAL.empty();
+			if(containsNull && filter.test(values[nullIndex])) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(values[nullIndex]);
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.VALUE_TEST_VALUE(values[i])) return values[i];
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(values[i])) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(values[i]);
 			}
-			return EMPTY_VALUE;
+			return VALUE_OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1313,9 +1495,9 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return 0;
 			int result = 0;
-			if(containsNull && filter.VALUE_TEST_VALUE(values[nullIndex])) result++;
+			if(containsNull && filter.test(values[nullIndex])) result++;
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.VALUE_TEST_VALUE(values[i])) result++;
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(values[i])) result++;
 			}
 			return result;
 		}
@@ -1334,7 +1516,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		MapEntry entry;
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE next() {
-			return entry = new MapEntry(nextEntry());
+			return entry = new ValueMapEntry(nextEntry());
 		}
 		
 		@Override
@@ -1364,7 +1546,8 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		int lastReturned = -1;
 		int nextIndex = Integer.MIN_VALUE;
 		boolean returnNull = containsNull;
-		LIST KEY_GENERIC_TYPE wrapped = null;
+		KEY_TYPE[] wrapped = null;
+		int wrappedIndex = 0;
 		
 		public boolean hasNext() {
 			if(nextIndex == Integer.MIN_VALUE) {
@@ -1376,7 +1559,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 				{
 					while(true) {
 						if(--pos < 0) {
-							if(wrapped == null || wrapped.size() <= -pos - 1) break;
+							if(wrapped == null || wrappedIndex <= -pos - 1) break;
 							nextIndex = -pos - 1;
 							break;
 						}
@@ -1395,7 +1578,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
-				int value = findIndex(wrapped.GET_KEY(nextIndex));
+				int value = findIndex(wrapped[nextIndex]);
 				if(value < 0) throw new IllegalStateException("Entry ["+nextIndex+"] was removed during Iteration");
 				nextIndex = Integer.MIN_VALUE;
 				return value;
@@ -1414,7 +1597,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			}
 			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				HASH_MAP.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				HASH_MAP.this.remove(wrapped[-returnedPos - 1]);
 				lastReturned = -1;
 				return;
 			}
@@ -1437,13 +1620,20 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 					if(last <= startPos ? (last >= slot || slot > startPos) : (last >= slot && slot > startPos)) break;
 					startPos = ++startPos & mask;
 				}
-				if(startPos < last) {
-					if(wrapped == null) wrapped = new ARRAY_LISTBRACES(2);
-					wrapped.add(keys[startPos]);
-				}
+				if(startPos < last) addWrapper(keys[startPos]);
 				keys[last] = current;
 				values[last] = values[startPos];
 			}
 		}
+		
+		private void addWrapper(KEY_TYPE value) {
+			if(wrapped == null) wrapped = NEW_KEY_ARRAY(2);
+			else if(wrappedIndex >= wrapped.length) {
+				KEY_TYPE[] newArray = NEW_KEY_ARRAY(wrapped.length * 2);
+				System.arraycopy(wrapped, 0, newArray, 0, wrapped.length);
+				wrapped = newArray;
+			}
+			wrapped[wrappedIndex++] = value;
+		}
 	}
 }

src/builder/resources/speiger/assets/collections/templates/maps/impl/immutable/ImmutableOpenHashMap.template

@@ -4,19 +4,43 @@ import java.util.Arrays;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+import java.util.Optional;
 import java.util.function.Consumer;
 import java.util.function.BiFunction;
+import java.util.function.Predicate;
+#if !TYPE_OBJECT && JDK_TYPE
+import java.util.function.PREDICATE;
+import java.util.OPTIONAL;
+#endif
+#if !SAME_TYPE && JDK_VALUE && !VALUE_OBJECT
+import java.util.function.VALUE_PREDICATE;
+import java.util.VALUE_OPTIONAL;
+#endif
 
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 #endif
-#if !TYPE_OBJECT && !VALUE_BOOLEAN
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
+#if !TYPE_OBJECT && !VALUE_OBJECT
+import speiger.src.collections.ints.functions.consumer.IntObjectConsumer;
+#endif
+#if !SAME_TYPE && !TYPE_INT
+import speiger.src.collections.ints.functions.consumer.VALUE_BI_FROM_INT_CONSUMER;
+#endif
+#if !TYPE_OBJECT && !JDK_TYPE
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#if !VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
 #endif
+#endif
+#if !TYPE_INT || !SAME_TYPE
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
+#endif
+#if !VALUE_BOOLEAN || !JDK_TYPE
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 #if !SAME_TYPE
 import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
@@ -25,32 +49,30 @@ import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.maps.interfaces.ORDERED_MAP;
 import speiger.src.collections.PACKAGE.maps.abstracts.ABSTRACT_MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
+#if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.sets.ORDERED_SET;
-import speiger.src.collections.PACKAGE.utils.maps.MAPS;
+#endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
 #endif
 #if !TYPE_OBJECT && !VALUE_OBJECT || !VALUE_OBJECT
 import speiger.src.collections.objects.functions.consumer.ObjectObjectConsumer;
 #endif
-#if !TYPE_OBJECT || !VALUE_BOOLEAN
-#if !VALUE_OBJECT || SAME_TYPE
-import speiger.src.collections.objects.functions.function.Object2BooleanFunction;
-#endif
-#endif
 #if !SAME_TYPE
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
 
 #endif
+#if !JDK_VALUE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_OPTIONAL;
+#endif
 #endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.sets.ABSTRACT_SET;
-import speiger.src.collections.PACKAGE.sets.SET;
 #endif
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
-import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
+import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ORDERED_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ITERATOR;
 import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_SUPPLIER;
 #if !SAME_TYPE
@@ -70,7 +92,7 @@ import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOpera
 import speiger.src.collections.objects.lists.ObjectListIterator;
 #endif
 import speiger.src.collections.objects.sets.AbstractObjectSet;
-import speiger.src.collections.objects.sets.ObjectSet;
+import speiger.src.collections.objects.sets.ObjectOrderedSet;
 import speiger.src.collections.utils.HashUtil;
 import speiger.src.collections.utils.SanityChecks;
 
@@ -100,11 +122,11 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	/** The Last Index in the Map */
 	protected int lastIndex = -1;
 	/** EntrySet cache */
-	protected transient FastEntrySet KEY_VALUE_GENERIC_TYPE entrySet;
+	protected transient FastOrderedSet KEY_VALUE_GENERIC_TYPE entrySet;
 	/** KeySet cache */
-	protected transient SET KEY_GENERIC_TYPE keySet;
+	protected transient ORDERED_SET KEY_GENERIC_TYPE keySet;
 	/** Values cache */
-	protected transient VALUE_COLLECTION VALUE_GENERIC_TYPE valuesC;
+	protected transient VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE valuesC;
 	
 	/** Amount of Elements stored in the HashMap */
 	protected int size;
@@ -214,7 +236,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		KEY_TYPE[] keys = NEW_KEY_ARRAY(map.size());
 		VALUE_TYPE[] values = NEW_VALUE_ARRAY(keys.length);
 		int index = 0;
-		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(map)) {
+		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : getFastIterable(map)) {
 			keys[index] = entry.ENTRY_KEY();
 			values[index] = entry.ENTRY_VALUE();
 			index++;
@@ -305,6 +327,10 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	@Override
 	public VALUE_TYPE putAndMoveToLast(KEY_TYPE key, VALUE_TYPE value) { throw new UnsupportedOperationException(); }
 	@Override
+	public VALUE_TYPE putFirst(KEY_TYPE key, VALUE_TYPE value) { throw new UnsupportedOperationException(); }
+	@Override
+	public VALUE_TYPE putLast(KEY_TYPE key, VALUE_TYPE value) { throw new UnsupportedOperationException(); }
+	@Override
 	public boolean moveToFirst(KEY_TYPE key) { throw new UnsupportedOperationException(); }
 	@Override
 	public boolean moveToLast(KEY_TYPE key) { throw new UnsupportedOperationException(); }
@@ -429,19 +455,36 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	}
 	
 	@Override
-	public ObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		return new BasicEntryKV_BRACES(keys[firstIndex], values[firstIndex]);
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		return new BasicEntryKV_BRACES(keys[lastIndex], values[lastIndex]);
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirstEntry() { throw new UnsupportedOperationException(); }
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry() { throw new UnsupportedOperationException(); }
+
+	@Override
+	public ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
 		if(entrySet == null) entrySet = new MapEntrySet();
 		return entrySet;
 	}
 	
 	@Override
-	public SET KEY_GENERIC_TYPE keySet() {
+	public ORDERED_SET KEY_GENERIC_TYPE keySet() {
 		if(keySet == null) keySet = new KeySet();
 		return keySet;
 	}
 	
 	@Override
-	public VALUE_COLLECTION VALUE_GENERIC_TYPE values() {
+	public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE values() {
 		if(valuesC == null) valuesC = new Values();
 		return valuesC;
 	}
@@ -478,16 +521,22 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	
 	@Override
 	public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
-	
 	@Override
 	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
-	
 	@Override
 	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { throw new UnsupportedOperationException(); }
-	
 	@Override
 	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
-	
+#if !VALUE_OBJECT
+	@Override
+	public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+	@Override
+	public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+	@Override
+	public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { throw new UnsupportedOperationException(); }
+	@Override
+	public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+#endif
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
 	
@@ -516,6 +565,9 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 #endif
 	protected int findIndex(Object key) {
 		if(key == null) return containsNull ? nullIndex : -(nullIndex + 1);
+#if !TYPE_OBJECT
+		if(KEY_EQUALS_NULL(CLASS_TO_KEY(key))) return containsNull ? nullIndex : -(nullIndex + 1);
+#endif
 		int pos = HashUtil.mix(key.hashCode()) & mask;
 		KEY_TYPE current = keys[pos];
 		if(KEY_EQUALS_NOT_NULL(current)) {
@@ -585,6 +637,10 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	}
 	
 	private class MapEntrySet extends AbstractObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> implements ORDERED_MAP.FastOrderedSet KEY_VALUE_GENERIC_TYPE {
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -597,24 +653,29 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		public boolean moveToLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE first() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getFirst() {
 			return new BasicEntryKV_BRACES(FIRST_ENTRY_KEY(), FIRST_ENTRY_VALUE());
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE last() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getLast() {
 			return new BasicEntryKV_BRACES(LAST_ENTRY_KEY(), LAST_ENTRY_VALUE());
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirst() { throw new UnsupportedOperationException(); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeFirst() { throw new UnsupportedOperationException(); }
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLast() { throw new UnsupportedOperationException(); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeLast() { throw new UnsupportedOperationException(); }
 		
 		@Override
 		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iterator() {
-			return new EntryIterator();
+			return new EntryIterator(true);
+		}
+		
+		@Override
+		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> reverseIterator() {
+			return new EntryIterator(false);
 		}
 		
 		@Override
@@ -624,7 +685,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		
 		@Override
 		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> fastIterator() {
-			return new FastEntryIterator();
+			return new FastEntryIterator(true);
 		}
 		
 		@Override
@@ -655,6 +716,18 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(IntObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			int count = 0;
+			int index = firstIndex;
+			while(index != -1) {
+				action.accept(count++, new BasicEntryKV_BRACES(keys[index], values[index]));
+				index = (int)links[index];
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
@@ -667,42 +740,42 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		}
 		
 		@Override
-		public boolean matchesAny(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAny(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return false;
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
 			int index = firstIndex;
 			while(index != -1) {
 				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) return true;
+				if(filter.test(entry)) return true;
 				index = (int)links[index];
 			}
 			return false;
 		}
 		
 		@Override
-		public boolean matchesNone(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesNone(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
 			int index = firstIndex;
 			while(index != -1) {
 				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) return false;
+				if(filter.test(entry)) return false;
 				index = (int)links[index];
 			}
 			return true;
 		}
 		
 		@Override
-		public boolean matchesAll(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public boolean matchesAll(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
 			int index = firstIndex;
 			while(index != -1) {
 				entry.set(keys[index], values[index]);
-				if(!filter.getBoolean(entry)) return false;
+				if(!filter.test(entry)) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -721,7 +794,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> reduce(ObjectObjectUnaryOperator<MAP.Entry KEY_VALUE_GENERIC_TYPE, MAP.Entry KEY_VALUE_GENERIC_TYPE> operator) {
 			Objects.requireNonNull(operator);
 			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
 			boolean empty = true;
@@ -736,25 +809,25 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[index]));
 				index = (int)links[index];
 			}
-			return state;
+			return empty ? Optional.empty() : Optional.ofNullable(state);
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public Optional<MAP.Entry KEY_VALUE_GENERIC_TYPE> findFirst(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return null;
+			if(size() <= 0) return Optional.empty();
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
 			int index = firstIndex;
 			while(index != -1) {
 				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) return entry;
+				if(filter.test(entry)) return Optional.ofNullable(entry);
 				index = (int)links[index];
 			}
-			return null;
+			return Optional.empty();
 		}
 		
 		@Override
-		public int count(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+		public int count(Predicate<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return 0;
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
@@ -762,7 +835,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			int index = firstIndex;
 			while(index != -1) {
 				entry.set(keys[index], values[index]);
-				if(filter.getBoolean(entry)) result++;
+				if(filter.test(entry)) result++;
 				index = (int)links[index];
 			}
 			return result;
@@ -825,6 +898,12 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			throw new UnsupportedOperationException();
 		}
 		
+		@Override
+		public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 
@@ -839,7 +918,12 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		
 		@Override
 		public LIST_ITERATOR KEY_GENERIC_TYPE iterator() {
-			return new KeyIterator();
+			return new KeyIterator(true);
+		}
+		
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE reverseIterator() {
+			return new KeyIterator(false);
 		}
 		
 		@Override
@@ -859,20 +943,20 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		public void clear() { throw new UnsupportedOperationException(); }
 		
 		@Override
-		public KEY_TYPE FIRST_KEY() {
+		public KEY_TYPE GET_FIRST_KEY() {
 			return FIRST_ENTRY_KEY();
 		}
 		
 		@Override
-		public KEY_TYPE POLL_FIRST_KEY() { throw new UnsupportedOperationException(); }
+		public KEY_TYPE REMOVE_FIRST_KEY() { throw new UnsupportedOperationException(); }
 
 		@Override
-		public KEY_TYPE LAST_KEY() {
+		public KEY_TYPE GET_LAST_KEY() {
 			return LAST_ENTRY_KEY();
 		}
 
 		@Override
-		public KEY_TYPE POLL_LAST_KEY() { throw new UnsupportedOperationException(); }
+		public KEY_TYPE REMOVE_LAST_KEY() { throw new UnsupportedOperationException(); }
 		
 		@Override
 		public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
@@ -883,6 +967,18 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			int count = 0;
+			int index = firstIndex;
+			while(index != -1){
+				action.accept(count++, keys[index]);
+				index = (int)links[index];
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -900,7 +996,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			if(size() <= 0) return false;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) return true;
+				if(filter.test(keys[index])) return true;
 				index = (int)links[index];
 			}
 			return false;
@@ -912,7 +1008,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) return false;
+				if(filter.test(keys[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -924,7 +1020,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1){
-				if(!filter.TEST_VALUE(keys[index])) return false;
+				if(!filter.test(keys[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -958,7 +1054,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		
 #endif
 		@Override
-		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		public OPTIONAL KEY_GENERIC_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			KEY_TYPE state = EMPTY_KEY_VALUE;
 			boolean empty = true;
@@ -973,19 +1069,19 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 				state = operator.APPLY_KEY_VALUE(state, keys[index]);
 				index = (int)links[index];
 			}
-			return state;
+			return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 		}
 		
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_KEY_VALUE;
+			if(size() <= 0) return OPTIONAL.empty();
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) return keys[index];
+				if(filter.test(keys[index])) return OPTIONAL.GET_OPTIONAL(keys[index]);
 				index = (int)links[index];
 			}
-			return EMPTY_KEY_VALUE;
+			return OPTIONAL.empty();
 		}
 		
 		@Override
@@ -995,46 +1091,49 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			int index = firstIndex;
 			int result = 0;
 			while(index != -1){
-				if(filter.TEST_VALUE(keys[index])) result++;
+				if(filter.test(keys[index])) result++;
 				index = (int)links[index];
 			}
 			return result;
 		}
 	}
 	
-	private class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE {
+	private class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE implements VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE {
 #if VALUE_OBJECT
 		@Override
 		@Deprecated
-		public boolean contains(Object e) {
-			return containsValue(e);
-		}
+		public boolean contains(Object e) { return containsValue(e); }
 		
 #else
 		@Override
-		public boolean contains(VALUE_TYPE e) {
-			return containsValue(e);
-		}
+		public boolean contains(VALUE_TYPE e) { return containsValue(e); }
 		
 #endif
 		@Override
-		public boolean add(VALUE_TYPE o) {
-			throw new UnsupportedOperationException();
-		}
-
+		public boolean add(VALUE_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
-		public VALUE_ITERATOR VALUE_GENERIC_TYPE iterator() {
-			return new ValueIterator();
-		}
-		
+		public VALUE_ITERATOR VALUE_GENERIC_TYPE iterator() { return new ValueIterator(true); }
 		@Override
-		public int size() {
-			return IMMUTABLE_HASH_MAP.this.size();
-		}
-		
+		public int size() { return IMMUTABLE_HASH_MAP.this.size(); }
 		@Override
 		public void clear() { throw new UnsupportedOperationException(); }
-		
+		@Override
+		public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE reversed() { return new VALUE_ABSTRACT_COLLECTION.VALUE_REVERSED_ORDERED_COLLECTIONVALUE_BRACES(this, this::reverseIterator); }
+		private VALUE_ITERATOR VALUE_GENERIC_TYPE reverseIterator() {
+			return new ValueIterator(false);
+		}
+		@Override
+		public void addFirst(VALUE_TYPE e) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(VALUE_TYPE e) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE VALUE_GET_FIRST_KEY() { return FIRST_ENTRY_VALUE(); }
+		@Override
+		public VALUE_TYPE VALUE_REMOVE_FIRST_KEY() { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE VALUE_GET_LAST_KEY() { return LAST_ENTRY_VALUE(); }
+		@Override
+		public VALUE_TYPE VALUE_REMOVE_LAST_KEY() { throw new UnsupportedOperationException(); }
 		@Override
 		public void forEach(VALUE_CONSUMER VALUE_SUPER_GENERIC_TYPE action) {
 			int index = firstIndex;
@@ -1044,6 +1143,18 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(VALUE_BI_FROM_INT_CONSUMER VALUE_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			if(size() <= 0) return;
+			int count = 0;
+			int index = firstIndex;
+			while(index != -1){
+				action.accept(count++, values[index]);
+				index = (int)links[index];
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -1061,7 +1172,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			if(size() <= 0) return false;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) return true;
+				if(filter.test(values[index])) return true;
 				index = (int)links[index];
 			}
 			return false;
@@ -1073,7 +1184,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) return false;
+				if(filter.test(values[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -1085,7 +1196,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			if(size() <= 0) return true;
 			int index = firstIndex;
 			while(index != -1){
-				if(!filter.VALUE_TEST_VALUE(values[index])) return false;
+				if(!filter.test(values[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
@@ -1119,7 +1230,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		
 #endif
 		@Override
-		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			VALUE_TYPE state = EMPTY_VALUE;
 			boolean empty = true;
@@ -1134,19 +1245,19 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 				state = operator.APPLY_VALUE(state, values[index]);
 				index = (int)links[index];
 			}
-			return state;
+			return empty ? VALUE_OPTIONAL.empty() : VALUE_OPTIONAL.GET_OPTIONAL_VALUE(state);
 		}
 		
 		@Override
-		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+		public VALUE_OPTIONAL VALUE_GENERIC_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
-			if(size() <= 0) return EMPTY_VALUE;
+			if(size() <= 0) return VALUE_OPTIONAL.empty();
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) return values[index];
+				if(filter.test(values[index])) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(values[index]);
 				index = (int)links[index];
 			}
-			return EMPTY_VALUE;
+			return VALUE_OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1156,7 +1267,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			int result = 0;
 			int index = firstIndex;
 			while(index != -1){
-				if(filter.VALUE_TEST_VALUE(values[index])) result++;
+				if(filter.test(values[index])) result++;
 				index = (int)links[index];
 			}
 			return result;
@@ -1166,7 +1277,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	private class FastEntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
 		MapEntry entry = new MapEntry();
 		
-		public FastEntryIterator() {}
+		public FastEntryIterator(boolean start) { super(start); }
 		public FastEntryIterator(KEY_TYPE from) {
 			super(from);
 		}
@@ -1192,7 +1303,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	
 	private class EntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
 		
-		public EntryIterator() {}
+		public EntryIterator(boolean start) { super(start); }
 		public EntryIterator(KEY_TYPE from) {
 			super(from);
 		}
@@ -1219,7 +1330,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	
 	private class KeyIterator extends MapIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
 		
-		public KeyIterator() {}
+		public KeyIterator(boolean start) { super(start); }
 		public KeyIterator(KEY_TYPE from) {
 			super(from);
 		}
@@ -1241,7 +1352,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	}
 	
 	private class ValueIterator extends MapIterator implements VALUE_LIST_ITERATOR VALUE_GENERIC_TYPE {
-		public ValueIterator() {}
+		public ValueIterator(boolean start) { super(start); }
 		
 		@Override
 		public VALUE_TYPE VALUE_PREVIOUS() {
@@ -1262,13 +1373,16 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	}
 	
 	private class MapIterator {
+		boolean forward;
 		int previous = -1;
 		int next = -1;
 		int current = -1;
 		int index = 0;
 		
-		MapIterator() {
-			next = firstIndex;
+		MapIterator(boolean start) {
+			this.forward = start;
+			if(start) next = firstIndex;
+			else previous = lastIndex;
 		}
 		
 		MapIterator(KEY_TYPE from) {
@@ -1299,11 +1413,11 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		}
 		
 		public boolean hasNext() {
-			return next != -1;
+			return (forward ? next : previous) != -1;
 		}
 
 		public boolean hasPrevious() {
-			return previous != -1;
+			return (forward ? previous : next) != -1;
 		}
 		
 		public int nextIndex() {
@@ -1320,20 +1434,30 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		
 		public int previousEntry() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			current = previous;
-			previous = (int)(links[current] >> 32);
-			next = current;
+			if(forward) moveBackwards();
+			else moveForwards();
 			if(index >= 0) index--;
 			return current;
 		}
 		
 		public int nextEntry() {
 			if(!hasNext()) throw new NoSuchElementException();
+			if(forward) moveForwards();
+			else moveBackwards();
+			if(index >= 0) index++;
+			return current;
+		}
+		
+		private void moveBackwards() {
+			current = previous;
+			previous = (int)(links[current] >> 32);
+			next = current;
+		}
+		
+		private void moveForwards() {
 			current = next;
 			next = (int)(links[current]);
 			previous = current;
-			if(index >= 0) index++;
-			return current;
 		}
 		
 		private void ensureIndexKnown() {

src/builder/resources/speiger/assets/collections/templates/maps/impl/misc/EnumMap.template

@@ -4,6 +4,11 @@ import java.util.Arrays;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+import java.util.function.Consumer;
+#if VALUE_BOOLEAN
+import java.util.function.Predicate;
+#endif
+
 
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
@@ -17,8 +22,9 @@ import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
 #if !VALUE_OBJECT
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 #endif
+#if !VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
-import speiger.src.collections.PACKAGE.utils.maps.MAPS;
+#endif
 import speiger.src.collections.objects.maps.abstracts.ABSTRACT_MAP;
 import speiger.src.collections.objects.maps.interfaces.MAP;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
@@ -76,8 +82,8 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		if(keys.length != values.length) throw new IllegalArgumentException("Keys and Values have to be the same size");
 		keyType = keys[0].getDeclaringClass();
 		this.keys = getKeyUniverse(keyType);
-		this.values = NEW_VALUE_ARRAY(keys.length);
-		present = new long[((keys.length - 1) >> 6) + 1];
+		this.values = NEW_VALUE_ARRAY(this.keys.length);
+		present = new long[((this.keys.length - 1) >> 6) + 1];
 		putAll(keys, values);
 	}
 	
@@ -93,8 +99,8 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		if(keys.length != values.length) throw new IllegalArgumentException("Keys and Values have to be the same size");
 		keyType = keys[0].getDeclaringClass();
 		this.keys = getKeyUniverse(keyType);
-		this.values = NEW_VALUE_ARRAY(keys.length);
-		present = new long[((keys.length - 1) >> 6) + 1];
+		this.values = NEW_VALUE_ARRAY(this.keys.length);
+		present = new long[((this.keys.length - 1) >> 6) + 1];
 		putAll(keys, values);		
 	}
 	
@@ -160,7 +166,14 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	@Override
 	public VALUE_TYPE putIfAbsent(T key, VALUE_TYPE value) {
 		int index = key.ordinal();
-		if(isSet(index)) return values[index];
+		if(isSet(index)) {
+			if(VALUE_EQUALS(values[index], getDefaultReturnValue())) {
+				VALUE_TYPE oldValue = values[index];
+				values[index] = value;
+				return oldValue;
+			}
+			return values[index];
+		}
 		set(index);
 		values[index] = value;
 		return getDefaultReturnValue();
@@ -350,6 +363,96 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		int index = key.ordinal();
 		if(!isSet(index)) {
 			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			set(index);
+			values[index] = newValue;
+			return newValue;
+		}
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			clear(index);
+			values[index] = EMPTY_VALUE;
+			return newValue;
+		}
+#endif
+		values[index] = newValue;
+		return newValue;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_ABSENT(T key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		int index = key.ordinal();
+		if(!isSet(index)) {
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			set(index);
+			values[index] = newValue;			
+			return newValue;
+		}
+		VALUE_TYPE newValue = values[index];
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = mappingFunction.APPLY(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+#endif
+		return newValue;
+	}
+		
+	@Override
+	public VALUE_TYPE SUPPLY_IF_ABSENT(T key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+		int index = key.ordinal();
+		if(!isSet(index)) {
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			set(index);
+			values[index] = newValue;			
+			return newValue;
+		}
+		VALUE_TYPE newValue = values[index];
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = valueProvider.VALUE_SUPPLY_GET();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+#endif
+		return newValue;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_PRESENT(T key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		int index = key.ordinal();
+#if !VALUE_OBJECT
+		if(!isSet(index)) return getDefaultReturnValue();
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+#else
+		if(!isSet(index) || VALUE_EQUALS(values[index], getDefaultReturnValue())) return getDefaultReturnValue();
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			clear(index);
+			values[index] = EMPTY_VALUE;
+			return newValue;
+		}
+#endif
+		values[index] = newValue;
+		return newValue;
+	}
+	
+#if !VALUE_OBJECT
+	@Override
+	public VALUE_TYPE COMPUTENonDefault(T key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		int index = key.ordinal();
+		if(!isSet(index)) {
+			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			set(index);
 			values[index] = newValue;
@@ -366,10 +469,10 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	}
 	
 	@Override
-	public VALUE_TYPE COMPUTE_IF_ABSENT(T key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+	public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(T key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		int index = key.ordinal();
 		if(!isSet(index)) {
-			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			set(index);
 			values[index] = newValue;			
@@ -377,7 +480,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		}
 		VALUE_TYPE newValue = values[index];
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
-			newValue = mappingFunction.GET_VALUE(key);
+			newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			values[index] = newValue;
 		}
@@ -385,10 +488,10 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	}
 	
 	@Override
-	public VALUE_TYPE SUPPLY_IF_ABSENT(T key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+	public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(T key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
 		int index = key.ordinal();
 		if(!isSet(index)) {
-			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			set(index);
 			values[index] = newValue;			
@@ -396,7 +499,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		}
 		VALUE_TYPE newValue = values[index];
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
-			newValue = valueProvider.VALUE_GET_KEY();
+			newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			values[index] = newValue;
 		}
@@ -404,7 +507,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	}
 	
 	@Override
-	public VALUE_TYPE COMPUTE_IF_PRESENT(T key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+	public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(T key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		int index = key.ordinal();
 		if(!isSet(index) || VALUE_EQUALS(values[index], getDefaultReturnValue())) return getDefaultReturnValue();
 		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
@@ -417,6 +520,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		return newValue;
 	}
 	
+#endif	
 	@Override
 	public VALUE_TYPE MERGE(T key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		int index = key.ordinal();
@@ -441,7 +545,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	@Override
 	public void BULK_MERGE(MAP KEY_VALUE_GENERIC_TYPE m, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
-		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
+		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : getFastIterable(m)) {
 			T key = entry.ENTRY_KEY();
 			int index = key.ordinal();
 			VALUE_TYPE newValue = !isSet(index) || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
@@ -530,6 +634,14 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 			return false;
 		}
 		
+		@Override
+		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+			if(size() <= 0) return;
+			for(int i = 0,m=keys.length;i<m;i++) {
+				if(isSet(i)) action.accept(new ValueMapEntry(i));
+			}
+		}
+		
 		@Override
 		public ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iterator() {
 			return new EntryIterator();
@@ -609,7 +721,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	class EntryIterator extends MapIterator implements ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE next() {
-			return new MapEntry(nextEntry());
+			return new ValueMapEntry(nextEntry());
 		}
 	}
 	
@@ -656,6 +768,33 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		}
 	}
 	
+	protected class ValueMapEntry extends MapEntry {
+		protected KEY_TYPE key;
+		protected VALUE_TYPE value;
+		
+		public ValueMapEntry(int index) {
+			super(index);
+			key = keys[index];
+			value = values[index];
+		}
+		
+		@Override
+		public KEY_TYPE ENTRY_KEY() {
+			return key;
+		}
+
+		@Override
+		public VALUE_TYPE ENTRY_VALUE() {
+			return value;
+		}
+		
+		@Override
+		public VALUE_TYPE setValue(VALUE_TYPE value) {
+			this.value = value;
+			return super.setValue(value);
+		}
+	}
+	
 	protected class MapEntry implements MAP.Entry KEY_VALUE_GENERIC_TYPE, Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE> {
 		public int index = -1;
 		
@@ -664,6 +803,10 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 			this.index = index;
 		}
 		
+		void set(int index) {
+			this.index = index;
+		}
+		
 		@Override
 		public KEY_TYPE ENTRY_KEY() {
 			return keys[index];
@@ -686,19 +829,19 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 			if(obj instanceof Map.Entry) {
 				if(obj instanceof MAP.Entry) {
 					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)obj;
-					return KEY_EQUALS(keys[index], entry.ENTRY_KEY()) && VALUE_EQUALS(values[index], entry.ENTRY_VALUE());
+					return KEY_EQUALS(ENTRY_KEY(), entry.ENTRY_KEY()) && VALUE_EQUALS(ENTRY_VALUE(), entry.ENTRY_VALUE());
 				}
 				Map.Entry<?, ?> entry = (Map.Entry<?, ?>)obj;
 				Object key = entry.getKey();
 				Object value = entry.getValue();
 #if TYPE_OBJECT && VALUE_OBJECT
-				return KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], value);
+				return KEY_EQUALS(ENTRY_KEY(), key) && VALUE_EQUALS(ENTRY_VALUE(), value);
 #else if TYPE_OBJECT
-				return value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], CLASS_TO_VALUE(value));
+				return value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(ENTRY_KEY(), key) && VALUE_EQUALS(ENTRY_VALUE(), CLASS_TO_VALUE(value));
 #else if VALUE_OBJECT
-				return key instanceof CLASS_TYPE && KEY_EQUALS(keys[index], CLASS_TO_KEY(key)) && VALUE_EQUALS(values[index], value);
+				return key instanceof CLASS_TYPE && KEY_EQUALS(ENTRY_KEY(), CLASS_TO_KEY(key)) && VALUE_EQUALS(ENTRY_VALUE(), value);
 #else
-				return key instanceof CLASS_TYPE && value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], CLASS_TO_KEY(key)) && VALUE_EQUALS(values[index], CLASS_TO_VALUE(value));
+				return key instanceof CLASS_TYPE && value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(ENTRY_KEY(), CLASS_TO_KEY(key)) && VALUE_EQUALS(ENTRY_VALUE(), CLASS_TO_VALUE(value));
 #endif
 			}
 			return false;
@@ -706,12 +849,12 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		
 		@Override
 		public int hashCode() {
-			return KEY_TO_HASH(keys[index]) ^ VALUE_TO_HASH(values[index]);
+			return KEY_TO_HASH(ENTRY_KEY()) ^ VALUE_TO_HASH(ENTRY_VALUE());
 		}
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(ENTRY_KEY()) + "=" + VALUE_TO_STRING(ENTRY_VALUE());
 		}
 	}
 }

src/builder/resources/speiger/assets/collections/templates/maps/impl/misc/LinkedEnumMap.template

@@ -17,9 +17,8 @@ import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.ORDERED_MAP;
 import speiger.src.collections.PACKAGE.sets.ABSTRACT_SET;
 import speiger.src.collections.PACKAGE.sets.ORDERED_SET;
-import speiger.src.collections.PACKAGE.sets.SET;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
-import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
+import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ORDERED_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ITERATOR;
 #if !VALUE_OBJECT && !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_CONSUMER;
@@ -29,7 +28,6 @@ import speiger.src.collections.VALUE_PACKAGE.lists.VALUE_LIST_ITERATOR;
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 import speiger.src.collections.objects.lists.ObjectListIterator;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
-import speiger.src.collections.objects.sets.ObjectSet;
 #endif
 
 /**
@@ -68,9 +66,9 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		if(keys.length != values.length) throw new IllegalArgumentException("Keys and Values have to be the same size");
 		keyType = keys[0].getDeclaringClass();
 		this.keys = getKeyUniverse(keyType);
-		this.values = NEW_VALUE_ARRAY(keys.length);
-		present = new long[((keys.length - 1) >> 6) + 1];
-		links = new long[keys.length];
+		this.values = NEW_VALUE_ARRAY(this.keys.length);
+		present = new long[((this.keys.length - 1) >> 6) + 1];
+		links = new long[this.keys.length];
 		putAll(keys, values);
 	}
 	
@@ -86,9 +84,9 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		if(keys.length != values.length) throw new IllegalArgumentException("Keys and Values have to be the same size");
 		keyType = keys[0].getDeclaringClass();
 		this.keys = getKeyUniverse(keyType);
-		this.values = NEW_VALUE_ARRAY(keys.length);
-		present = new long[((keys.length - 1) >> 6) + 1];
-		links = new long[keys.length];
+		this.values = NEW_VALUE_ARRAY(this.keys.length);
+		present = new long[((this.keys.length - 1) >> 6) + 1];
+		links = new long[this.keys.length];
 		putAll(keys, values);		
 	}
 	
@@ -218,6 +216,28 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		return getDefaultReturnValue();
 	}
 	
+	@Override
+	public VALUE_TYPE putFirst(T key, VALUE_TYPE value) {
+		int index = key.ordinal();
+		if(isSet(index)) return values[index];
+		set(index);
+		values[index] = value;
+		onNodeAdded(index);
+		moveToFirstIndex(index);
+		return getDefaultReturnValue();
+	}
+	
+	@Override
+	public VALUE_TYPE putLast(T key, VALUE_TYPE value) {
+		int index = key.ordinal();
+		if(isSet(index)) return values[index];
+		set(index);
+		values[index] = value;
+		onNodeAdded(index);
+		moveToLastIndex(index);
+		return getDefaultReturnValue();
+	}
+	
 	@Override
 	public boolean moveToFirst(T key) {
 		int index = key.ordinal();
@@ -241,7 +261,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	@Override
 	public VALUE_TYPE getAndMoveToFirst(T key) {
 		int index = key.ordinal();
-		if(index < 0) return getDefaultReturnValue();
+		if(!isSet(index)) return getDefaultReturnValue();
 		moveToFirstIndex(index);
 		return values[index];
 	}
@@ -249,7 +269,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	@Override
 	public VALUE_TYPE getAndMoveToLast(T key) {
 		int index = key.ordinal();
-		if(index < 0) return getDefaultReturnValue();
+		if(!isSet(index)) return getDefaultReturnValue();
 		moveToLastIndex(index);
 		return values[index];
 	}
@@ -315,21 +335,57 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	}
 	
 	@Override
-	public ObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		return new BasicEntryKV_BRACES(keys[firstIndex], values[firstIndex]);
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		return new BasicEntryKV_BRACES(keys[lastIndex], values[lastIndex]);
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirstEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		int pos = firstIndex;
+		firstIndex = (int)links[pos];
+		if(0 <= firstIndex) links[firstIndex] |= 0xFFFFFFFF00000000L;
+		BasicEntry KEY_VALUE_GENERIC_TYPE result = new BasicEntryKV_BRACES(keys[pos], values[pos]);
+		size--;
+		values[result.ENTRY_KEY().ordinal()] = EMPTY_VALUE;
+		return result;
+	}
+	
+	@Override
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry() {
+		if(size == 0) throw new NoSuchElementException();
+		int pos = lastIndex;
+		firstIndex = (int)links[pos];
+		if(0 <= firstIndex) links[firstIndex] |= 0xFFFFFFFF00000000L;
+		BasicEntry KEY_VALUE_GENERIC_TYPE result = new BasicEntryKV_BRACES(keys[pos], values[pos]);
+		size--;
+		values[result.ENTRY_KEY().ordinal()] = EMPTY_VALUE;
+		return result;
+	}
+	
+	@Override
+	public ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
 		if(entrySet == null) entrySet = new MapEntrySet();
-		return entrySet;
+		return (ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE>)entrySet;
 	}
 	
 	@Override
-	public SET KEY_GENERIC_TYPE keySet() {
+	public ORDERED_SET KEY_GENERIC_TYPE keySet() {
 		if(keySet == null) keySet = new KeySet();
-		return keySet;
+		return (ORDERED_SET KEY_GENERIC_TYPE)keySet;
 	}
 	
 	@Override
-	public VALUE_COLLECTION VALUE_GENERIC_TYPE values() {
+	public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE values() {
 		if(valuesC == null) valuesC = new Values();
-		return valuesC;
+		return (VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE)valuesC;
 	}
 	
 	@Override
@@ -417,6 +473,10 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	}
 	
 	private class MapEntrySet extends AbstractObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> implements ORDERED_MAP.FastOrderedSet KEY_VALUE_GENERIC_TYPE {
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -433,24 +493,24 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE first() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getFirst() {
 			return new BasicEntryKV_BRACES(FIRST_ENTRY_KEY(), FIRST_ENTRY_VALUE());
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE last() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getLast() {
 			return new BasicEntryKV_BRACES(LAST_ENTRY_KEY(), LAST_ENTRY_VALUE());
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirst() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeFirst() {
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES(FIRST_ENTRY_KEY(), FIRST_ENTRY_VALUE());
 			POLL_FIRST_ENTRY_KEY();
 			return entry;
 		}
 		
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLast() {
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeLast() {
 			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES(LAST_ENTRY_KEY(), LAST_ENTRY_VALUE());
 			POLL_LAST_ENTRY_KEY();
 			return entry;
@@ -458,7 +518,12 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		
 		@Override
 		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iterator() {
-			return new EntryIterator();
+			return new EntryIterator(true);
+		}
+		
+		@Override
+		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> reverseIterator() {
+			return new EntryIterator(false);
 		}
 		
 		@Override
@@ -468,7 +533,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		
 		@Override
 		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> fastIterator() {
-			return new FastEntryIterator();
+			return new FastEntryIterator(true);
 		}
 		
 		@Override
@@ -482,17 +547,17 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			int index = firstIndex;
 			while(index != -1){
-				action.accept(new BasicEntryKV_BRACES(keys[index], values[index]));
+				action.accept(new ValueMapEntry(index));
 				index = (int)links[index];
 			}
 		}
 		
 		@Override
 		public void fastForEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
-			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			MapEntry entry = new MapEntry();
 			int index = firstIndex;
 			while(index != -1){
-				entry.set(keys[index], values[index]);
+				entry.set(index);
 				action.accept(entry);
 				index = (int)links[index];
 			}
@@ -576,7 +641,10 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		public boolean add(T o) {
 			throw new UnsupportedOperationException();
 		}
-		
+		@Override
+		public void addFirst(T o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(T o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(T o) { throw new UnsupportedOperationException(); }
 
@@ -595,7 +663,12 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		
 		@Override
 		public LIST_ITERATOR KEY_GENERIC_TYPE iterator() {
-			return new KeyIterator();
+			return new KeyIterator(true);
+		}
+		
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE reverseIterator() {
+			return new KeyIterator(false);
 		}
 		
 		@Override
@@ -616,22 +689,22 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		}
 		
 		@Override
-		public T FIRST_KEY() {
+		public T GET_FIRST_KEY() {
 			return FIRST_ENTRY_KEY();
 		}
 		
 		@Override
-		public T POLL_FIRST_KEY() {
+		public T REMOVE_FIRST_KEY() {
 			return POLL_FIRST_ENTRY_KEY();
 		}
 
 		@Override
-		public T LAST_KEY() {
+		public T GET_LAST_KEY() {
 			return LAST_ENTRY_KEY();
 		}
 
 		@Override
-		public T POLL_LAST_KEY() {
+		public T REMOVE_LAST_KEY() {
 			return POLL_LAST_ENTRY_KEY();
 		}
 		
@@ -658,41 +731,50 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 #endif
 	}
 	
-	private class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE {
+	private class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE implements VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE {
 #if VALUE_OBJECT
 		@Override
 		@Deprecated
-		public boolean contains(Object e) {
-			return containsValue(e);
-		}
+		public boolean contains(Object e) { return containsValue(e); }
 		
 #else
 		@Override
-		public boolean contains(VALUE_TYPE e) {
-			return containsValue(e);
-		}
+		public boolean contains(VALUE_TYPE e) { return containsValue(e); }
 		
 #endif
 		@Override
-		public boolean add(VALUE_TYPE o) {
-			throw new UnsupportedOperationException();
-		}
-
+		public boolean add(VALUE_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
-		public VALUE_ITERATOR VALUE_GENERIC_TYPE iterator() {
-			return new ValueIterator();
-		}
-		
+		public VALUE_ITERATOR VALUE_GENERIC_TYPE iterator() { return new ValueIterator(true); }
 		@Override
-		public int size() {
-			return LINKED_ENUM_MAP.this.size();
-		}
-		
+		public int size() { return LINKED_ENUM_MAP.this.size(); }
 		@Override
-		public void clear() {
-			LINKED_ENUM_MAP.this.clear();
+		public void clear() { LINKED_ENUM_MAP.this.clear(); }
+		@Override
+		public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE reversed() { return new VALUE_ABSTRACT_COLLECTION.VALUE_REVERSED_ORDERED_COLLECTIONVALUE_BRACES(this, this::reverseIterator); }
+		private VALUE_ITERATOR VALUE_GENERIC_TYPE reverseIterator() {
+			return new ValueIterator(false);
+		}
+		@Override
+		public void addFirst(VALUE_TYPE e) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(VALUE_TYPE e) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE VALUE_GET_FIRST_KEY() { return FIRST_ENTRY_VALUE(); }
+		@Override
+		public VALUE_TYPE VALUE_REMOVE_FIRST_KEY() {
+			VALUE_TYPE result = FIRST_ENTRY_VALUE();
+			POLL_FIRST_ENTRY_KEY();
+			return result; 
+		}
+		@Override
+		public VALUE_TYPE VALUE_GET_LAST_KEY() { return LAST_ENTRY_VALUE(); }
+		@Override
+		public VALUE_TYPE VALUE_REMOVE_LAST_KEY() {
+			VALUE_TYPE result = LAST_ENTRY_VALUE();
+			POLL_LAST_ENTRY_KEY();
+			return result; 
 		}
-		
 #if VALUE_OBJECT
 		@Override
 		public void forEach(Consumer VALUE_SUPER_GENERIC_TYPE action) {
@@ -717,7 +799,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	private class FastEntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
 		MapEntry entry = new MapEntry();
 		
-		public FastEntryIterator() {}
+		public FastEntryIterator(boolean start) { super(start); }
 		public FastEntryIterator(T from) {
 			super(from);
 		}
@@ -744,19 +826,19 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	private class EntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
 		MapEntry entry;
 		
-		public EntryIterator() {}
+		public EntryIterator(boolean start) { super(start); }
 		public EntryIterator(T from) {
 			super(from);
 		}
 		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE next() {
-			return entry = new MapEntry(nextEntry());
+			return entry = new ValueMapEntry(nextEntry());
 		}
 		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE previous() {
-			return entry = new MapEntry(previousEntry());
+			return entry = new ValueMapEntry(previousEntry());
 		}
 		
 		@Override
@@ -774,7 +856,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	
 	private class KeyIterator extends MapIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
 		
-		public KeyIterator() {}
+		public KeyIterator(boolean start) { super(start); }
 		public KeyIterator(T from) {
 			super(from);
 		}
@@ -796,7 +878,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	}
 	
 	private class ValueIterator extends MapIterator implements VALUE_LIST_ITERATOR VALUE_GENERIC_TYPE {
-		public ValueIterator() {}
+		public ValueIterator(boolean start) { super(start); }
 		
 		@Override
 		public VALUE_TYPE VALUE_PREVIOUS() {
@@ -817,27 +899,32 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	}
 	
 	private class MapIterator {
+		boolean forward;
 		int previous = -1;
 		int next = -1;
 		int current = -1;
 		int index = 0;
 		
-		MapIterator() {
-			next = firstIndex;
+		MapIterator(boolean start) {
+			this.forward = start;
+			if(start) next = firstIndex;
+			else previous = lastIndex;
 		}
 		
 		MapIterator(T from) {
+			this.forward = true;
 			previous = from.ordinal() - 1;
 			index = from.ordinal();
 			next = from.ordinal();
+			if(!isSet(index)) throw new NoSuchElementException();
 		}
 		
 		public boolean hasNext() {
-			return next != -1;
+			return (forward ? next : previous) != -1;
 		}
 
 		public boolean hasPrevious() {
-			return previous != -1;
+			return (forward ? previous : next) != -1;
 		}
 		
 		public int nextIndex() {
@@ -872,20 +959,30 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		
 		public int previousEntry() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			current = previous;
-			previous = (int)(links[current] >> 32);
-			next = current;
+			if(forward) moveBackwards();
+			else moveForwards();
 			if(index >= 0) index--;
 			return current;
 		}
 		
 		public int nextEntry() {
 			if(!hasNext()) throw new NoSuchElementException();
+			if(forward) moveForwards();
+			else moveBackwards();
+			if(index >= 0) index++;
+			return current;
+		}
+		
+		private void moveBackwards() {
+			current = previous;
+			previous = (int)(links[current] >> 32);
+			next = current;
+		}
+		
+		private void moveForwards() {
 			current = next;
 			next = (int)(links[current]);
 			previous = current;
-			if(index >= 0) index++;
-			return current;
 		}
 		
 		private void ensureIndexKnown() {
@@ -904,6 +1001,33 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		}
 	}
 	
+	protected class ValueMapEntry extends MapEntry {
+		protected KEY_TYPE key;
+		protected VALUE_TYPE value;
+		
+		public ValueMapEntry(int index) {
+			super(index);
+			key = keys[index];
+			value = values[index];
+		}
+		
+		@Override
+		public KEY_TYPE ENTRY_KEY() {
+			return key;
+		}
+
+		@Override
+		public VALUE_TYPE ENTRY_VALUE() {
+			return value;
+		}
+		
+		@Override
+		public VALUE_TYPE setValue(VALUE_TYPE value) {
+			this.value = value;
+			return super.setValue(value);
+		}
+	}
+	
 	protected class MapEntry implements MAP.Entry KEY_VALUE_GENERIC_TYPE, Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE> {
 		public int index = -1;
 		
@@ -912,6 +1036,10 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 			this.index = index;
 		}
 		
+		void set(int index) {
+			this.index = index;
+		}
+		
 		@Override
 		public KEY_TYPE ENTRY_KEY() {
 			return keys[index];
@@ -934,19 +1062,19 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 			if(obj instanceof Map.Entry) {
 				if(obj instanceof MAP.Entry) {
 					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)obj;
-					return KEY_EQUALS(keys[index], entry.ENTRY_KEY()) && VALUE_EQUALS(values[index], entry.ENTRY_VALUE());
+					return KEY_EQUALS(ENTRY_KEY(), entry.ENTRY_KEY()) && VALUE_EQUALS(ENTRY_VALUE(), entry.ENTRY_VALUE());
 				}
 				Map.Entry<?, ?> entry = (Map.Entry<?, ?>)obj;
 				Object key = entry.getKey();
 				Object value = entry.getValue();
 #if TYPE_OBJECT && VALUE_OBJECT
-				return KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], value);
+				return KEY_EQUALS(ENTRY_KEY(), key) && VALUE_EQUALS(ENTRY_VALUE(), value);
 #else if TYPE_OBJECT
-				return value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], CLASS_TO_VALUE(value));
+				return value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(ENTRY_KEY(), key) && VALUE_EQUALS(ENTRY_VALUE(), CLASS_TO_VALUE(value));
 #else if VALUE_OBJECT
-				return key instanceof CLASS_TYPE && KEY_EQUALS(keys[index], CLASS_TO_KEY(key)) && VALUE_EQUALS(values[index], value);
+				return key instanceof CLASS_TYPE && KEY_EQUALS(ENTRY_KEY(), CLASS_TO_KEY(key)) && VALUE_EQUALS(ENTRY_VALUE(), value);
 #else
-				return key instanceof CLASS_TYPE && value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], CLASS_TO_KEY(key)) && VALUE_EQUALS(values[index], CLASS_TO_VALUE(value));
+				return key instanceof CLASS_TYPE && value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(ENTRY_KEY(), CLASS_TO_KEY(key)) && VALUE_EQUALS(ENTRY_VALUE(), CLASS_TO_VALUE(value));
 #endif
 			}
 			return false;
@@ -954,12 +1082,12 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		
 		@Override
 		public int hashCode() {
-			return KEY_TO_HASH(keys[index]) ^ VALUE_TO_HASH(values[index]);
+			return KEY_TO_HASH(ENTRY_KEY()) ^ VALUE_TO_HASH(ENTRY_VALUE());
 		}
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(ENTRY_KEY()) + "=" + VALUE_TO_STRING(ENTRY_VALUE());
 		}
 	}
 }

src/builder/resources/speiger/assets/collections/templates/maps/interfaces/Map.template

@@ -10,36 +10,72 @@ import java.util.function.BiConsumer;
 import java.util.function.BiFunction;
 import java.util.function.Consumer;
 import java.util.function.Function;
+#if VALUE_BOOLEAN && JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 #if TYPE_OBJECT
+#if AVL_TREE_MAP_FEATURE || RB_TREE_MAP_FEATURE
 import java.util.Comparator;
 #endif
+#endif
 
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
+#if !VALUE_BOOLEAN || !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
-#if !TYPE_OBJECT && !TYPE_BOOLEAN
+#if !TYPE_OBJECT && !TYPE_BOOLEAN && SORTED_MAP_FEATURE
+#if AVL_TREE_MAP_FEATURE || RB_TREE_MAP_FEATURE
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
+#endif
 #if !TYPE_BOOLEAN
+#if LINKED_CUSTOM_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.customHash.LINKED_CUSTOM_HASH_MAP;
+#endif
+#if CUSTOM_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.customHash.CUSTOM_HASH_MAP;
+#endif
+#if LINKED_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.hash.LINKED_HASH_MAP;
+#endif
+#if MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.hash.HASH_MAP;
+#endif
+#if IMMUTABLE_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.immutable.IMMUTABLE_HASH_MAP;
+#endif
+#if AVL_TREE_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.tree.AVL_TREE_MAP;
+#endif
+#if RB_TREE_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.tree.RB_TREE_MAP;
+#endif
+#if ARRAY_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.misc.ARRAY_MAP;
+#endif
+#if CONCURRENT_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.concurrent.CONCURRENT_HASH_MAP;
+#endif
 #if TYPE_OBJECT
+#if ENUM_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.misc.ENUM_MAP;
+#endif
+#if LINKED_ENUM_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.impl.misc.LINKED_ENUM_MAP;
 #endif
+#endif
+
 import speiger.src.collections.objects.collections.ObjectIterable;
+#if CUSTOM_MAP_FEATURE || LINKED_CUSTOM_MAP_FEATURE
 import speiger.src.collections.PACKAGE.utils.STRATEGY;
+#endif
+#if MAPS_FEATURE
 import speiger.src.collections.PACKAGE.utils.maps.MAPS;
 #endif
+#endif
 import speiger.src.collections.PACKAGE.sets.SET;
 #if !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
@@ -102,6 +138,26 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 	 */
 	public VALUE_TYPE put(KEY_TYPE key, VALUE_TYPE value);
 	
+	/**
+	 * A Helper method that allows to put int a MAP.Entry into a map.
+	 * @param entry then Entry that should be inserted.
+	 * @return the last present value or default return value.
+	 */
+	public default VALUE_TYPE put(Entry KEY_VALUE_GENERIC_TYPE entry) {
+		return put(entry.ENTRY_KEY(), entry.ENTRY_VALUE());
+	}
+	
+#if !TYPE_OBJECT || !VALUE_OBJECT
+	/**
+	 * A Helper method that allows to put int a Map.Entry into a map.
+	 * @param entry then Entry that should be inserted.
+	 * @return the last present value or default return	value.
+	 */
+	public default CLASS_VALUE_TYPE put(Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE> entry) {
+		return put(OBJ_TO_KEY(entry.getKey()), OBJ_TO_VALUE(entry.getValue()));
+	}
+
+#endif
 	/**
 	 * Type Specific array method to bulk add elements into a map without creating a wrapper and increasing performances
 	 * @param keys the keys that should be added
@@ -326,21 +382,26 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 	public void REPLACE_VALUES(UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction);
 	/**
 	 * A Type Specific compute method to reduce boxing/unboxing
+	 * If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null".
+	 * A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
 	 * @param key the key that should be computed
 	 * @param mappingFunction the operator that should generate the value
 	 * @return the result of the computation
 	 */
 	public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction);
 	/**
-	 * A Type Specific compute method to reduce boxing/unboxing
+	 * A Type Specific computeIfAbsent method to reduce boxing/unboxing
+	 * If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null".
+	 * A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
 	 * @param key the key that should be computed
 	 * @param mappingFunction the operator that should generate the value if not present
 	 * @return the result of the computed value or present value
 	 */
 	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction);
-	
 	/**
 	 * A Supplier based computeIfAbsent function to fill the most used usecase of this function
+	 * If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null".
+	 * A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
 	 * @param key the key that should be computed
 	 * @param valueProvider the value if not present
 	 * @return the result of the computed value or present value
@@ -348,14 +409,57 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider);
 	/**
 	 * A Type Specific compute method to reduce boxing/unboxing
+	 * If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null".
+	 * A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
 	 * @param key the key that should be computed
 	 * @param mappingFunction the operator that should generate the value if present
 	 * @return the result of the default return value or present value
 	 * @note if not present then compute is not executed
 	 */
 	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction);
+#if !VALUE_OBJECT
+	/**
+	 * A Type Specific compute method to reduce boxing/unboxing
+	 * If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null".
+	 * A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
+	 * @param key the key that should be computed
+	 * @param mappingFunction the operator that should generate the value
+	 * @return the result of the computation
+	 */
+	public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction);
+	/**
+	 * A Type Specific computeIfAbsent method to reduce boxing/unboxing
+	 * If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null".
+	 * A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
+	 * @param key the key that should be computed
+	 * @param mappingFunction the operator that should generate the value if not present
+	 * @return the result of the computed value or present value
+	 */
+	public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction);
+	/**
+	 * A Supplier based computeIfAbsent function to fill the most used usecase of this function
+	 * If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null".
+	 * A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
+	 * @param key the key that should be computed
+	 * @param valueProvider the value if not present
+	 * @return the result of the computed value or present value
+	 */	
+	public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider);
+	/**
+	 * A Type Specific compute method to reduce boxing/unboxing
+	 * If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null".
+	 * A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
+	 * @param key the key that should be computed
+	 * @param mappingFunction the operator that should generate the value if present
+	 * @return the result of the default return value or present value
+	 * @note if not present then compute is not executed
+	 */
+	public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction);
+#endif
 	/**
 	 * A Type Specific merge method to reduce boxing/unboxing
+	 * If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null".
+	 * A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
 	 * @param key the key that should be be searched for
 	 * @param value the value that should be merged with
 	 * @param mappingFunction the operator that should generate the new Value
@@ -365,6 +469,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction);
 	/**
 	 * A Bulk method for merging Maps.
+	 * If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null".
+	 * A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
 	 * @param m the entries that should be bulk added
 	 * @param mappingFunction the operator that should generate the new Value
 	 * @note if the result matches the default return value then the key is removed from the map
@@ -384,13 +490,19 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 		return VALUE_TO_OBJ(replace(OBJ_TO_KEY(key), OBJ_TO_VALUE(value)));
 	}
 	
+#endif
+	@Override
+	public default VALUE_TYPE APPLY(KEY_TYPE key) {
+		return GET_VALUE(key);
+	}
 	/**
 	 * A Type Specific get method to reduce boxing/unboxing
 	 * @param key the key that is searched for
 	 * @return the searched value or default return value
 	 */
-	@Override
 	public VALUE_TYPE GET_VALUE(KEY_TYPE key);
+	
+#if !TYPE_OBJECT || !VALUE_OBJECT
 	/**
 	 * A Type Specific getOrDefault method to reduce boxing/unboxing
 	 * @param key the key that is searched for
@@ -485,7 +597,7 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 	 */
 	public ObjectSet<Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET();
 	
-#if !TYPE_BOOLEAN
+#if MAPS_FEATURE
 	/**
 	 * Creates a Wrapped Map that is Synchronized
 	 * @return a new Map that is synchronized
@@ -557,8 +669,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 		 */
 		public KEY_TYPE ENTRY_KEY();
 		public default CLASS_TYPE getKey() { return KEY_TO_OBJ(ENTRY_KEY()); }
-#endif
 		
+#endif
 #if !VALUE_OBJECT
 		/**
 		 * Type Specific getValue method that reduces boxing/unboxing
@@ -638,6 +750,7 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 		}
 		
 #endif
+#if MAP_FEATURE
 		/**
 		* Helper function to unify code
 		* @Type(T)
@@ -711,6 +824,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return new HASH_MAPKV_BRACES(map);
 		}
 		
+#endif
+#if LINKED_MAP_FEATURE
 		/**
 		* Helper function to unify code
 		* @Type(T)
@@ -784,6 +899,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return new IMMUTABLE_HASH_MAPKV_BRACES(map);
 		}
 		
+#endif
+#if IMMUTABLE_MAP_FEATURE
 		/**
 		* Helper function to unify code
 		* @param keys the keys that should be inserted
@@ -836,7 +953,9 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return new IMMUTABLE_HASH_MAPKV_BRACES(map);
 		}
 		
+#endif
 #if TYPE_OBJECT
+#if ENUM_MAP_FEATURE
 		/**
 		 * Helper function to unify code
 		 * @param keyType the EnumClass that should be used
@@ -904,6 +1023,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return new ENUM_MAPKV_BRACES(map);
 		}
 		
+#endif
+#if LINKED_ENUM_MAP_FEATURE
 		/**
 		 * Helper function to unify code
 		 * @param keyType the EnumClass that should be used
@@ -970,7 +1091,10 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 		public GENERIC_KEY_ENUM_VALUE_BRACES LINKED_ENUM_MAP KEY_VALUE_GENERIC_TYPE linkedEnumMap(MAP KEY_VALUE_GENERIC_TYPE map) {
 			return new LINKED_ENUM_MAPKV_BRACES(map);
 		}
+		
 #endif
+#endif
+#if CUSTOM_MAP_FEATURE
 		/**
 		* Helper function to unify code
 		* @param strategy the Hash Controller
@@ -1050,6 +1174,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return new CUSTOM_HASH_MAPKV_BRACES(map, strategy);
 		}
 		
+#endif
+#if LINKED_CUSTOM_MAP_FEATURE
 		/**
 		* Helper function to unify code
 		* @param strategy the Hash Controller
@@ -1129,6 +1255,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return new LINKED_CUSTOM_HASH_MAPKV_BRACES(map, strategy);
 		}
 		
+#endif
+#if ARRAY_MAP_FEATURE
 		/**
 		* Helper function to unify code
 		* @Type(T)
@@ -1202,7 +1330,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return new ARRAY_MAPKV_BRACES(map);
 		}
 		
-		
+#endif
+#if RB_TREE_MAP_FEATURE
 		/**
 		* Helper function to unify code
 		* @Type(T)
@@ -1280,6 +1409,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return new RB_TREE_MAPKV_BRACES(map, comp);
 		}
 		
+#endif
+#if AVL_TREE_MAP_FEATURE
 		/**
 		* Helper function to unify code
 		* @Type(T)
@@ -1356,6 +1487,7 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 		public GENERIC_KEY_VALUE_BRACES AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE avlTreeMap(Map<? extends CLASS_TYPE, ? extends CLASS_VALUE_TYPE> map, COMPARATOR KEY_GENERIC_TYPE comp) {
 			return new AVL_TREE_MAPKV_BRACES(map, comp);
 		}
+#endif
 	}
 	
 	/**
@@ -1381,6 +1513,7 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 		 * @param initialSize the requested start capacity
 		 */
 		public BuilderCache(int initialSize) {
+			if(initialSize < 0) throw new IllegalStateException("Minimum Capacity is negative. This is not allowed");
 			keys = NEW_KEY_ARRAY(initialSize);
 			values = NEW_VALUE_ARRAY(initialSize);
 		}
@@ -1433,7 +1566,11 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 		 * @return self
 		 */
 		public BuilderCache KEY_VALUE_GENERIC_TYPE putAll(MAP KEY_VALUE_GENERIC_TYPE map) {
+#if MAPS_FEATURE
 			return putAll(MAPS.fastIterable(map));
+#else
+			return putAll(map.ENTRY_SET());
+#endif
 		}
 		
 		/**
@@ -1462,11 +1599,14 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return this;
 		}
 		
+#if MAP_FEATURE || LINKED_MAP_FEATURE || CUSTOM_MAP_FEATURE || LINKED_CUSTOM_MAP_FEATURE || AVL_TREE_MAP_FEATURE || RB_TREE_MAP_FEATURE || CONCURRENT_MAP_FEATURE
 		private <E extends MAP KEY_VALUE_GENERIC_TYPE> E putElements(E e){
 			e.putAll(keys, values, 0, size);
 			return e;
 		}
 		
+#endif
+#if MAP_FEATURE
 		/**
 		 * Builds the Keys and Values into a Hash Map
 		 * @return a HASH_MAP
@@ -1475,6 +1615,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return putElements(new HASH_MAPKV_BRACES(size));
 		}
 		
+#endif
+#if LINKED_MAP_FEATURE
 		/**
 		 * Builds the Keys and Values into a Linked Hash Map
 		 * @return a LINKED_HASH_MAP
@@ -1483,6 +1625,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return putElements(new LINKED_HASH_MAPKV_BRACES(size));
 		}
 		
+#endif
+#if IMMUTABLE_MAP_FEATURE
 		/**
 		 * Builds the Keys and Values into a Immutable Hash Map
 		 * @return a IMMUTABLE_HASH_MAP
@@ -1491,6 +1635,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return new IMMUTABLE_HASH_MAPKV_BRACES(Arrays.copyOf(keys, size), Arrays.copyOf(values, size));
 		}
 		
+#endif
+#if CUSTOM_MAP_FEATURE
 		/**
 		 * Builds the Keys and Values into a Custom Hash Map
 		 * @param strategy the that controls the keys and values
@@ -1500,6 +1646,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return putElements(new CUSTOM_HASH_MAPKV_BRACES(size, strategy));
 		}
 		
+#endif
+#if LINKED_CUSTOM_MAP_FEATURE
 		/**
 		 * Builds the Keys and Values into a Linked Custom Hash Map
 		 * @param strategy the that controls the keys and values
@@ -1509,6 +1657,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return putElements(new LINKED_CUSTOM_HASH_MAPKV_BRACES(size, strategy));
 		}
 		
+#endif
+#if CONCURRENT_MAP_FEATURE
 		/**
 		 * Builds the Keys and Values into a Concurrent Hash Map
 		 * @return a CONCURRENT_HASH_MAP
@@ -1517,6 +1667,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return putElements(new CONCURRENT_HASH_MAPKV_BRACES(size));
 		}
 		
+#endif
+#if ARRAY_MAP_FEATURE
 		/**
 		 * Builds the Keys and Values into a Array Map
 		 * @return a ARRAY_MAP
@@ -1525,6 +1677,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return new ARRAY_MAPKV_BRACES(keys, values, size);
 		}
 		
+#endif
+#if RB_TREE_MAP_FEATURE
 		/**
 		 * Builds the Keys and Values into a RedBlack TreeMap
 		 * @return a RB_TREE_MAP
@@ -1542,6 +1696,8 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 			return putElements(new RB_TREE_MAPKV_BRACES(comp));
 		}
 		
+#endif
+#if AVL_TREE_MAP_FEATURE
 		/**
 		 * Builds the Keys and Values into a AVL TreeMap
 		 * @return a AVL_TREE_MAP
@@ -1558,6 +1714,7 @@ public interface MAP KEY_VALUE_GENERIC_TYPE extends Map<CLASS_TYPE, CLASS_VALUE_
 		public AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE avlTreeMap(COMPARATOR KEY_GENERIC_TYPE comp) {
 			return putElements(new AVL_TREE_MAPKV_BRACES(comp));
 		}
+#endif
 	}
 #endif
 }

src/builder/resources/speiger/assets/collections/templates/maps/interfaces/NavigableMap.template

@@ -2,7 +2,9 @@ package speiger.src.collections.PACKAGE.maps.interfaces;
 
 import java.util.NavigableMap;
 import speiger.src.collections.PACKAGE.sets.NAVIGABLE_SET;
+#if MAPS_FEATURE
 import speiger.src.collections.PACKAGE.utils.maps.MAPS;
+#endif
 
 /**
  * A Type Specific Navigable Map interface with a couple helper methods
@@ -34,7 +36,11 @@ public interface NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE extends SORTED_MAP KEY_VAL
 	/** @return a Type Specific pollLastEntry */
 	@Override
 	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry();
+	/** @return a Type Specific Navigable Key Set */
+	@Override
+	public NAVIGABLE_SET KEY_GENERIC_TYPE keySet();
 	
+#if MAPS_FEATURE
 	/**
 	 * Creates a Wrapped NavigableMap that is Synchronized
 	 * @return a new NavigableMap that is synchronized
@@ -57,6 +63,7 @@ public interface NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE extends SORTED_MAP KEY_VAL
 	 */
 	public default NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE unmodifiable() { return MAPS.unmodifiable(this); }
 	
+#endif
 #if !TYPE_OBJECT
 	/**
 	 * A Type Specific SubMap method to reduce boxing/unboxing

src/builder/resources/speiger/assets/collections/templates/maps/interfaces/OrderedMap.template

@@ -1,6 +1,18 @@
 package speiger.src.collections.PACKAGE.maps.interfaces;
 
+#if JAVA_VERSION>=21
+import java.util.Map;
+import java.util.SequencedMap;
+
+#endif
+#if MAPS_FEATURE
 import speiger.src.collections.PACKAGE.utils.maps.MAPS;
+#endif
+import speiger.src.collections.PACKAGE.maps.abstracts.ABSTRACT_MAP;
+import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ORDERED_COLLECTION;
+#if !TYPE_OBJECT
+import speiger.src.collections.PACKAGE.sets.ORDERED_SET;
+#endif
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 import speiger.src.collections.objects.sets.ObjectOrderedSet;
 /**
@@ -12,7 +24,11 @@ import speiger.src.collections.objects.sets.ObjectOrderedSet;
  * @Type(T)
  * @ValueType(V)
  */
+#if JAVA_VERSION>=21
+public interface ORDERED_MAP KEY_VALUE_GENERIC_TYPE extends MAP KEY_VALUE_GENERIC_TYPE, SequencedMap<CLASS_TYPE, CLASS_VALUE_TYPE>
+#else
 public interface ORDERED_MAP KEY_VALUE_GENERIC_TYPE extends MAP KEY_VALUE_GENERIC_TYPE
+#endif
 {
 	/**
 	 * A customized put method that allows you to insert into the first index.
@@ -32,6 +48,26 @@ public interface ORDERED_MAP KEY_VALUE_GENERIC_TYPE extends MAP KEY_VALUE_GENERI
 	 */
 	public VALUE_TYPE putAndMoveToLast(KEY_TYPE key, VALUE_TYPE value);
 	
+	/**
+	 * A alternative to putAndMoveToFirst.
+	 * This method simply puts an entry at the first spot of the Map but only if the entry is missing.
+	 * @param key the key that should be inserted
+	 * @param value the value that should be inserted
+	 * @return the previous present or default return value
+	 * @see java.util.Map#put(Object, Object)
+	 */
+	public VALUE_TYPE putFirst(KEY_TYPE key, VALUE_TYPE value);
+	
+	/**
+	 * A alternative to putAndMoveToLast.
+	 * This method simply puts an entry at the last spot of the Map but only if the entry is missing.
+	 * @param key the key that should be inserted
+	 * @param value the value that should be inserted
+	 * @return the previous present or default return value
+	 * @see java.util.Map#put(Object, Object)
+	 */
+	public VALUE_TYPE putLast(KEY_TYPE key, VALUE_TYPE value);
+	
 	/**
 	 * A specific move method to move a given key/value to the first index.
 	 * @param key that should be moved to the first index
@@ -92,9 +128,35 @@ public interface ORDERED_MAP KEY_VALUE_GENERIC_TYPE extends MAP KEY_VALUE_GENERI
 	 */
 	public VALUE_TYPE LAST_ENTRY_VALUE();
 	
+	@Java21
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry();
+	@Java21
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry();
+	@Java21
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirstEntry();
+	@Java21
+	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry();
 	@Override
 	public ORDERED_MAP KEY_VALUE_GENERIC_TYPE copy();
+	@Override
+	public ORDERED_SET KEY_GENERIC_TYPE keySet();
+	@Override
+	public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE values();
+	@Override
+	public ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET();
+	@Java21
+	public default ORDERED_MAP KEY_VALUE_GENERIC_TYPE reversed() { return new ABSTRACT_MAP.REVERSED_ORDERED_MAPKV_BRACES(this); }
 	
+#if JAVA_VERSION>=21
+	@Override
+	default ORDERED_SET KEY_GENERIC_TYPE sequencedKeySet() { return keySet(); }
+	@Override
+	default VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE sequencedValues() { return values(); }
+	@Override
+	default ObjectOrderedSet<Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE>> sequencedEntrySet() { return (ObjectOrderedSet<Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE>>)(Object)ENTRY_SET(); }
+	
+#endif
+#if MAPS_FEATURE
 	/**
 	 * Creates a Wrapped SortedMap that is Synchronized
 	 * @return a new SortedMap that is synchronized
@@ -120,6 +182,23 @@ public interface ORDERED_MAP KEY_VALUE_GENERIC_TYPE extends MAP KEY_VALUE_GENERI
 	@Override
 	public default ORDERED_MAP KEY_VALUE_GENERIC_TYPE unmodifiable() { return MAPS.unmodifiable(this); }
 	
+#endif
+#if JAVA_VERSION>=21
+#if !SAME_TYPE || !TYPE_OBJECT
+	@Override
+	@Deprecated
+	public default CLASS_VALUE_TYPE putFirst(CLASS_TYPE k, CLASS_VALUE_TYPE v) {
+		return putFirst(OBJ_TO_KEY(k), OBJ_TO_VALUE(v));
+	}
+	
+	@Override
+	@Deprecated
+	public default CLASS_VALUE_TYPE putLast(CLASS_TYPE k, CLASS_VALUE_TYPE v) {
+		return putLast(OBJ_TO_KEY(k), OBJ_TO_VALUE(v));
+	}
+	
+#endif
+#endif
 	/**
 	 * Fast Ordered Entry Set that allows for a faster Entry Iterator by recycling the Entry Object and just exchanging 1 internal value
 	 * @Type(T)

src/builder/resources/speiger/assets/collections/templates/maps/interfaces/SortedMap.template

@@ -9,9 +9,13 @@ import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
-import speiger.src.collections.PACKAGE.sets.SET;
+import speiger.src.collections.PACKAGE.sets.SORTED_SET;
+#if MAPS_FEATURE
 import speiger.src.collections.PACKAGE.utils.maps.MAPS;
+#endif
+#if !TYPE_OBJECT
 import speiger.src.collections.objects.sets.ObjectSortedSet;
+#endif
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 
 /**
@@ -31,10 +35,11 @@ public interface SORTED_MAP KEY_VALUE_GENERIC_TYPE extends SortedMap<CLASS_TYPE,
 	public SORTED_MAP KEY_VALUE_GENERIC_TYPE copy();
 	
 	@Override
-	public SET KEY_GENERIC_TYPE keySet();
+	public SORTED_SET KEY_GENERIC_TYPE keySet();
 	@Override
 	public VALUE_COLLECTION VALUE_GENERIC_TYPE values();
 	
+#if MAPS_FEATURE
 	/**
 	 * Creates a Wrapped SortedMap that is Synchronized
 	 * @return a new SortedMap that is synchronized
@@ -57,6 +62,7 @@ public interface SORTED_MAP KEY_VALUE_GENERIC_TYPE extends SortedMap<CLASS_TYPE,
 	 */
 	public default SORTED_MAP KEY_VALUE_GENERIC_TYPE unmodifiable() { return MAPS.unmodifiable(this); }
 	
+#endif
 #if !TYPE_OBJECT
 	/**
 	 * A Type Specific SubMap method to reduce boxing/unboxing

src/builder/resources/speiger/assets/collections/templates/misc/pairs/Pair.template

@@ -1,7 +1,12 @@
 package speiger.src.collections.PACKAGE.misc.pairs;
 
+#if IMMUTABLE_PAIR
 import speiger.src.collections.PACKAGE.misc.pairs.impl.IMMUTABLE_PAIR;
+#endif
+#if MUTABLE_PAIR
 import speiger.src.collections.PACKAGE.misc.pairs.impl.MUTABLE_PAIR;
+#endif
+
 /**
  * Key Value Pair Interface that allows to reduce boxing/unboxing.
  * @Type(T)
@@ -9,6 +14,7 @@ import speiger.src.collections.PACKAGE.misc.pairs.impl.MUTABLE_PAIR;
  */
 public interface PAIR KEY_VALUE_GENERIC_TYPE
 {
+#if IMMUTABLE_PAIR
 	/**
 	 * Empty Reference for Immutable Pairs
 	 */
@@ -68,6 +74,8 @@ public interface PAIR KEY_VALUE_GENERIC_TYPE
 		return new IMMUTABLE_PAIRKV_BRACES(pair.ENTRY_KEY(), pair.ENTRY_VALUE());
 	}
 	
+#endif
+#if MUTABLE_PAIR
 	/**
 	 * @Type(T)
 	 * @ValueType(V)
@@ -118,6 +126,7 @@ public interface PAIR KEY_VALUE_GENERIC_TYPE
 		return new MUTABLE_PAIRKV_BRACES(pair.ENTRY_KEY(), pair.ENTRY_VALUE());
 	}
 	
+#endif
 	/**
 	 * Sets the Key of the Pair.
 	 * @param key the key that should be set.

src/builder/resources/speiger/assets/collections/templates/queues/ArrayFIFOQueue.template

@@ -7,15 +7,35 @@ import java.util.function.Consumer;
 import java.util.function.BiFunction;
 #endif
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
+#endif
 import java.util.NoSuchElementException;
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.utils.ITrimmable;
 
@@ -93,6 +113,47 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 		this(MIN_CAPACITY);
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ArrayFIFOQueue
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, ARRAY_FIFO_QUEUE<T>, ARRAY_FIFO_QUEUE<T>> toQueue() {
+		return Collector.of(ARRAY_FIFO_QUEUE::new, ARRAY_FIFO_QUEUE::enqueue, ARRAY_FIFO_QUEUE::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a ArrayFIFOQueue
+	 * @Type(T)
+	 * @return a queue with the contents of the Stream
+	 */
+	public static <T> ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE toQueue(Stream<T> stream) {
+		return stream.collect(ARRAY_FIFO_QUEUE::new, ARRAY_FIFO_QUEUE::enqueue, ARRAY_FIFO_QUEUE::merge);
+	}
+	
+	private ARRAY_FIFO_QUEUE<T> merge(ARRAY_FIFO_QUEUE<T> a) {
+		enqueueAll(a.toArray((T[])new Object[a.size()]));
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ArrayFIFOQueue
+	 * @return a queue with the contents of the Stream
+	 */
+	public static ARRAY_FIFO_QUEUE toQueue(JAVA_STREAM stream) {
+		return stream.collect(ARRAY_FIFO_QUEUE::new, ARRAY_FIFO_QUEUE::enqueue, ARRAY_FIFO_QUEUE::merge);
+	}
+	
+	private ARRAY_FIFO_QUEUE merge(ARRAY_FIFO_QUEUE a) {
+		enqueueAll(a.TO_ARRAY());
+		return this;
+	}
+	
+#endif
+#endif
 	@Override
 	public ITERATOR KEY_GENERIC_TYPE iterator() {
 		return new Iter();
@@ -162,6 +223,15 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 		return index >= array.length ? array[index-array.length] : array[index];
 	}
 	
+	@Override
+	public boolean contains(KEY_TYPE e) {
+		if(first == last) return false;
+		for(int i = 0,m=size();i<m;i++) {
+			if(e == array[(first + i) % array.length]) return true;
+		}
+		return false;
+	}
+	
 	@Override
 	public boolean removeFirst(KEY_TYPE e) {
 		if(first == last) return false;
@@ -257,6 +327,15 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 		clearAndTrim(0);
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		if(first == last) return;
+		for(int i = 0,m=size();i<m;i++)
+			action.accept(i, array[(first + i) % array.length]);
+		clearAndTrim(0);
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -270,7 +349,7 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0,m=size();i<m;i++) {
-			if(filter.TEST_VALUE(array[(first + i) % array.length])) return true;
+			if(filter.test(array[(first + i) % array.length])) return true;
 		}
 		return false;
 	}
@@ -279,7 +358,7 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0,m=size();i<m;i++) {
-			if(filter.TEST_VALUE(array[(first + i) % array.length])) return false;
+			if(filter.test(array[(first + i) % array.length])) return false;
 		}
 		return true;
 	}
@@ -288,23 +367,23 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0,m=size();i<m;i++) {
-			if(!filter.TEST_VALUE(array[(first + i) % array.length])) return false;
+			if(!filter.test(array[(first + i) % array.length])) return false;
 		}
 		return true;
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0,m=size();i<m;i++) {
 			int index = (first + i) % array.length;
-			if(filter.TEST_VALUE(array[index])) {
+			if(filter.test(array[index])) {
 				KEY_TYPE data = array[index];
 				removeIndex(index);
-				return data;
+				return OPTIONAL.GET_OPTIONAL(data);
 			}
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 #if !TYPE_OBJECT
@@ -331,7 +410,7 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -343,7 +422,7 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 			}
 			state = operator.APPLY_VALUE(state, array[(first + i) % array.length]);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
@@ -351,7 +430,7 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 		Objects.requireNonNull(filter);
 		int result = 0;
 		for(int i = 0,m=size();i<m;i++) {
-			if(filter.TEST_VALUE(array[(first + i) % array.length])) result++;
+			if(filter.test(array[(first + i) % array.length])) result++;
 		}
 		return result;
 	}

src/builder/resources/speiger/assets/collections/templates/queues/ArrayPriorityQueue.template

@@ -8,15 +8,35 @@ import java.util.function.Consumer;
 import java.util.function.BiFunction;
 #endif
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
+#endif
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
 import speiger.src.collections.utils.SanityChecks;
@@ -184,7 +204,47 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUE
 		queue.size = size;
 		return queue;
 	}
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ArrayPriorityQueue
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, ARRAY_PRIORITY_QUEUE<T>, ARRAY_PRIORITY_QUEUE<T>> toQueue() {
+		return Collector.of(ARRAY_PRIORITY_QUEUE::new, ARRAY_PRIORITY_QUEUE::enqueue, ARRAY_PRIORITY_QUEUE::merge);
+	}
 	
+	/**
+	 * Collects a Stream to a ArrayPriorityQueue
+	 * @Type(T)
+	 * @return a queue with the contents of the Stream
+	 */
+	public static <T> ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE toQueue(Stream<T> stream) {
+		return stream.collect(ARRAY_PRIORITY_QUEUE::new, ARRAY_PRIORITY_QUEUE::enqueue, ARRAY_PRIORITY_QUEUE::merge);
+	}
+	
+	private ARRAY_PRIORITY_QUEUE<T> merge(ARRAY_PRIORITY_QUEUE<T> a) {
+		enqueueAll(a.toArray((T[])new Object[a.size()]));
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ArrayPriorityQueue
+	 * @return a queue with the contents of the Stream
+	 */
+	public static ARRAY_PRIORITY_QUEUE toQueue(JAVA_STREAM stream) {
+		return stream.collect(ARRAY_PRIORITY_QUEUE::new, ARRAY_PRIORITY_QUEUE::enqueue, ARRAY_PRIORITY_QUEUE::merge);
+	}
+	
+	private ARRAY_PRIORITY_QUEUE merge(ARRAY_PRIORITY_QUEUE a) {
+		enqueueAll(a.TO_ARRAY());
+		return this;
+	}
+	
+#endif
+#endif
 	@Override
 	public void enqueue(KEY_TYPE e) {
 		if(size == array.length) array = Arrays.copyOf(array, (int)Math.max(Math.min((long)array.length + (long)(array.length >> 1), (long)SanityChecks.MAX_ARRAY_SIZE), size+1));
@@ -209,12 +269,26 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUE
 		return value;
 	}
 	
+	@Override
+	public KEY_TYPE first() {
+		if(isEmpty()) throw new NoSuchElementException();
+		if(firstIndex == -1) findFirstIndex();
+		return array[firstIndex];
+	}
+	
 	@Override
 	public KEY_TYPE peek(int index) {
 		if(index < 0 || index >= size) throw new NoSuchElementException();
 		return array[index];
 	}
 	
+	@Override
+	public boolean contains(KEY_TYPE e) {
+		for(int i = 0;i<size;i++)
+			if(KEY_EQUALS(e, array[i])) return true;
+		return false;
+	}
+	
 	@Override
 	public boolean removeFirst(KEY_TYPE e) {
 		for(int i = 0;i<size;i++)
@@ -263,6 +337,12 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUE
 		for(int i = 0,m=size;i<m;i++) action.accept(dequeue());
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		for(int i = 0,m=size;i<m;i++) action.accept(i, dequeue());
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -273,7 +353,7 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUE
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(array[i])) return true;
+			if(filter.test(array[i])) return true;
 		}
 		return false;
 	}
@@ -282,7 +362,7 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUE
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(array[i])) return false;
+			if(filter.test(array[i])) return false;
 		}
 		return true;
 	}
@@ -291,7 +371,7 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUE
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(!filter.TEST_VALUE(array[i])) return false;
+			if(!filter.test(array[i])) return false;
 		}
 		return true;
 	}
@@ -320,7 +400,7 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUE
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -332,20 +412,20 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUE
 			}
 			state = operator.APPLY_VALUE(state, array[i]);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(array[i])) {
+			if(filter.test(array[i])) {
 				KEY_TYPE data = array[i];
 				removeIndex(i);
-				return data;
+				return OPTIONAL.GET_OPTIONAL(data);
 			}
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 	@Override
@@ -353,7 +433,7 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUE
 		Objects.requireNonNull(filter);
 		int result = 0;
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(array[i])) result++;
+			if(filter.test(array[i])) result++;
 		}
 		return result;
 	}

src/builder/resources/speiger/assets/collections/templates/queues/HeapPriorityQueue.template

@@ -8,15 +8,35 @@ import java.util.function.Consumer;
 import java.util.function.BiFunction;
 #endif
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
+#endif
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
 import speiger.src.collections.utils.SanityChecks;
@@ -187,6 +207,47 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEU
 		return queue;
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ArrayFIFOQueue
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, HEAP_PRIORITY_QUEUE<T>, HEAP_PRIORITY_QUEUE<T>> toQueue() {
+		return Collector.of(HEAP_PRIORITY_QUEUE::new, HEAP_PRIORITY_QUEUE::enqueue, HEAP_PRIORITY_QUEUE::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a ArrayFIFOQueue
+	 * @Type(T)
+	 * @return a queue with the contents of the Stream
+	 */
+	public static <T> HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE toQueue(Stream<T> stream) {
+		return stream.collect(HEAP_PRIORITY_QUEUE::new, HEAP_PRIORITY_QUEUE::enqueue, HEAP_PRIORITY_QUEUE::merge);
+	}
+	
+	private HEAP_PRIORITY_QUEUE<T> merge(HEAP_PRIORITY_QUEUE<T> a) {
+		enqueueAll(a.toArray((T[])new Object[a.size()]));
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ArrayFIFOQueue
+	 * @return a queue with the contents of the Stream
+	 */
+	public static HEAP_PRIORITY_QUEUE toQueue(JAVA_STREAM stream) {
+		return stream.collect(HEAP_PRIORITY_QUEUE::new, HEAP_PRIORITY_QUEUE::enqueue, HEAP_PRIORITY_QUEUE::merge);
+	}
+	
+	private HEAP_PRIORITY_QUEUE merge(HEAP_PRIORITY_QUEUE a) {
+		enqueueAll(a.TO_ARRAY());
+		return this;
+	}
+	
+#endif
+#endif
 	@Override
 	public int size() {
 		return size;
@@ -230,6 +291,13 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEU
 		return array[index];
 	}
 	
+	@Override
+	public boolean contains(KEY_TYPE e) {
+		for(int i = 0;i<size;i++)
+			if(KEY_EQUALS(e, array[i])) return true;
+		return false;
+	}
+	
 	@Override
 	public boolean removeFirst(KEY_TYPE e) {
 		for(int i = 0;i<size;i++)
@@ -250,6 +318,12 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEU
 		for(int i = 0,m=size;i<m;i++) action.accept(dequeue());
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		for(int i = 0,m=size;i<m;i++) action.accept(i, dequeue());
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -260,7 +334,7 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEU
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(array[i])) return true;
+			if(filter.test(array[i])) return true;
 		}
 		return false;
 	}
@@ -269,7 +343,7 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEU
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(array[i])) return false;
+			if(filter.test(array[i])) return false;
 		}
 		return true;
 	}
@@ -278,7 +352,7 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEU
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(!filter.TEST_VALUE(array[i])) return false;
+			if(!filter.test(array[i])) return false;
 		}
 		return true;
 	}
@@ -307,7 +381,7 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEU
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -319,20 +393,20 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEU
 			}
 			state = operator.APPLY_VALUE(state, array[i]);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(array[i])) {
+			if(filter.test(array[i])) {
 				KEY_TYPE data = array[i];
 				removeIndex(i);
-				return data;
+				return OPTIONAL.GET_OPTIONAL(data);
 			}
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 	@Override
@@ -340,7 +414,7 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEU
 		Objects.requireNonNull(filter);
 		int result = 0;
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(array[i])) result++;
+			if(filter.test(array[i])) result++;
 		}
 		return result;
 	}

src/builder/resources/speiger/assets/collections/templates/queues/PriorityDequeue.template

@@ -6,7 +6,9 @@ import java.util.Iterator;
 #endif
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if QUEUES_FEATURE
 import speiger.src.collections.PACKAGE.utils.PRIORITY_QUEUES;
+#endif
 
 /**
  * A Type Speciifc PriorityDeque or Dequeue interface to allow implementations like FIFO queues.
@@ -81,6 +83,7 @@ public interface PRIORITY_DEQUEUE KEY_GENERIC_TYPE extends PRIORITY_QUEUE KEY_GE
 	 */
 	public default KEY_TYPE last() { return peek(size()-1); }
 	
+#if QUEUES_FEATURE
 	/**
 	 * Creates a Wrapped PriorityDequeue that is Synchronized
 	 * @return a new PriorityDequeue that is synchronized
@@ -96,6 +99,7 @@ public interface PRIORITY_DEQUEUE KEY_GENERIC_TYPE extends PRIORITY_QUEUE KEY_GE
 	 */
 	public default PRIORITY_DEQUEUE KEY_GENERIC_TYPE synchronizeQueue(Object mutex) { return PRIORITY_QUEUES.synchronize(this, mutex); }
 	
+#endif
 	@Override
 	public PRIORITY_DEQUEUE KEY_GENERIC_TYPE copy();
 }

src/builder/resources/speiger/assets/collections/templates/queues/PriorityQueue.template

@@ -4,15 +4,16 @@ package speiger.src.collections.PACKAGE.queues;
 import java.util.Comparator;
 import java.util.Collection;
 import java.util.Iterator;
-
-import speiger.src.collections.ints.functions.function.Int2ObjectFunction;
+import java.util.function.IntFunction;
 #else
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERABLE;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if QUEUES_FEATURE
 import speiger.src.collections.PACKAGE.utils.PRIORITY_QUEUES;
+#endif
 
 
 /**
@@ -110,6 +111,13 @@ public interface PRIORITY_QUEUE KEY_GENERIC_TYPE extends ITERABLE KEY_GENERIC_TY
 	 */
 	public default KEY_TYPE first() { return peek(0); }
 	
+	/**
+	 * Method to find out if a element is part of the queue
+	 * @param e the element that is searched for
+	 * @return true if the element is in the queue
+	 */
+	public boolean contains(KEY_TYPE e);
+	
 	/**
 	 * Removes the first found element in the queue
 	 * @param e the element that should be removed
@@ -147,8 +155,9 @@ public interface PRIORITY_QUEUE KEY_GENERIC_TYPE extends ITERABLE KEY_GENERIC_TY
 	 * @return draining iterator of the PriorityQueue
 	 */
 	public ITERATOR KEY_GENERIC_TYPE iterator();
-#endif
 
+#endif
+#if QUEUES_FEATURE
 	/**
 	 * Creates a Wrapped PriorityQueue that is Synchronized
 	 * @return a new PriorityQueue that is synchronized
@@ -164,6 +173,7 @@ public interface PRIORITY_QUEUE KEY_GENERIC_TYPE extends ITERABLE KEY_GENERIC_TY
 	 */
 	public default PRIORITY_QUEUE KEY_GENERIC_TYPE synchronizeQueue(Object mutex) { return PRIORITY_QUEUES.synchronize(this, mutex); }
 
+#endif
 	/**
 	 * A method to drop the contents of the Queue without clearing the queue
 	 * @Type(E)
@@ -182,11 +192,12 @@ public interface PRIORITY_QUEUE KEY_GENERIC_TYPE extends ITERABLE KEY_GENERIC_TY
 	/**
 	 * A Helper function that simplifies the process of creating a new Array.
 	 * @param action the array creation function
+	 * @param <E> the returning arrayType
 	 * @return an array containing all of the elements in this collection
 	 * @see Collection#toArray(Object[])
 	 */
-	default KEY_TYPE[] TO_ARRAY(Int2ObjectFunction<KEY_TYPE[]> action) {
-		return TO_ARRAY(action.get(size()));
+	default <E> E[] TO_ARRAY(IntFunction<E[]> action) {
+		return TO_ARRAY(action.apply(size()));
 	}
 #endif
 }

src/builder/resources/speiger/assets/collections/templates/sets/AVLTreeSet.template

@@ -10,16 +10,36 @@ import java.util.function.BiFunction;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
+
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+import speiger.src.collections.objects.utils.ObjectArrays;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 #endif
@@ -200,6 +220,42 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		while(iterator.hasNext()) add(iterator.NEXT());
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a AVLTreeSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, AVL_TREE_SET<T>, AVL_TREE_SET<T>> toSet() {
+		return Collector.of(AVL_TREE_SET::new, AVL_TREE_SET::add, AVL_TREE_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a AVLTreeSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> AVL_TREE_SET KEY_GENERIC_TYPE toSet(Stream<T> stream) {
+		return stream.collect(AVL_TREE_SET::new, AVL_TREE_SET::add, AVL_TREE_SET::merge);
+	}
+	
+	private AVL_TREE_SET<T> merge(AVL_TREE_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a AVLTreeSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static AVL_TREE_SET toSet(JAVA_STREAM stream) {
+		return stream.collect(AVL_TREE_SET::new, AVL_TREE_SET::add, AVL_TREE_SET::addAll);
+	}
+	
+#endif
+#endif
 #if !TYPE_OBJECT
 	@Override
 	public void setDefaultMaxValue(KEY_TYPE value) { defaultMaxNotFound = value; }
@@ -353,6 +409,15 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		int index = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			action.accept(index++, entry.key);
+		}
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -364,7 +429,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
-			if(filter.TEST_VALUE(entry.key)) return true;
+			if(filter.test(entry.key)) return true;
 		}
 		return false;
 	}
@@ -373,7 +438,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
-			if(filter.TEST_VALUE(entry.key)) return false;
+			if(filter.test(entry.key)) return false;
 		}
 		return true;
 	}
@@ -382,18 +447,18 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
-			if(!filter.TEST_VALUE(entry.key)) return false;
+			if(!filter.test(entry.key)) return false;
 		}
 		return true;
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
-			if(filter.TEST_VALUE(entry.key)) return entry.key;
+			if(filter.test(entry.key)) return OPTIONAL.GET_OPTIONAL(entry.key);
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 #if !TYPE_OBJECT
@@ -420,7 +485,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -432,7 +497,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			}
 			state = operator.APPLY_VALUE(state, entry.key);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
@@ -440,7 +505,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		Objects.requireNonNull(filter);
 		int result = 0;
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
-			if(filter.TEST_VALUE(entry.key)) result++;
+			if(filter.test(entry.key)) result++;
 		}
 		return result;
 	}
@@ -635,6 +700,44 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		tree = null;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
+		if(a == null || a.length < size()) a = new KEY_TYPE[size()];
+		int index = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			a[index++] = entry.key;
+		}
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
+		return a;
+	}
+	
+#endif
+	@Override
+	@Deprecated
+	public Object[] toArray() {
+		if(isEmpty()) return ObjectArrays.EMPTY_ARRAY;
+		Object[] obj = new Object[size()];
+		int index = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			obj[index++] = KEY_TO_OBJ(entry.key);
+		}
+		return obj;
+	}
+	
+	@Override
+	@Primitive
+	public <E> E[] toArray(E[] a) {
+		if(a == null) a = (E[])new Object[size()];
+		else if(a.length < size()) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size());
+		int index = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			a[index++] = (E)KEY_TO_OBJ(entry.key);
+		}
+		if (a.length > size) a[size] = null;
+		return a;
+	}
+	
 	public AVL_TREE_SET KEY_GENERIC_TYPE copy() {
 		AVL_TREE_SET KEY_GENERIC_TYPE set = new AVL_TREE_SETBRACES();
 		set.size = size;
@@ -888,15 +991,11 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		@Override
 		public COMPARATOR KEY_GENERIC_TYPE comparator() { return comparator; }
 		
-		public KEY_TYPE getDefaultMaxValue() { return super.getDefaultMinValue(); }
-		
-		public KEY_TYPE getDefaultMinValue() { return super.getDefaultMaxValue(); }
-		
 		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, boolean fromInclusive, KEY_TYPE toElement, boolean toInclusive) {
 			if(!inRange(fromElement, fromInclusive)) throw new IllegalArgumentException("fromElement out of range");
 			if(!inRange(toElement, toInclusive)) throw new IllegalArgumentException("toElement out of range");
-			return new DescendingSubSetBRACES(set, false, fromElement, fromInclusive, false, toElement, toInclusive);
+			return new DescendingSubSetBRACES(set, false, toElement, toInclusive, false, fromElement, fromInclusive);
 		}
 		
 		@Override
@@ -973,21 +1072,15 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 #if !TYPE_OBJECT
 		@Override
 		public void setDefaultMaxValue(KEY_TYPE value) { set.setDefaultMaxValue(value); }
-		
 		@Override
 		public KEY_TYPE getDefaultMaxValue() { return set.getDefaultMaxValue(); }
-		
 		@Override
 		public void setDefaultMinValue(KEY_TYPE value) { set.setDefaultMinValue(value); }
-		
 		@Override
 		public KEY_TYPE getDefaultMinValue() { return set.getDefaultMinValue(); }
-		
 #else
 		public KEY_TYPE getDefaultMaxValue() { return null; }
-		
 		public KEY_TYPE getDefaultMinValue() { return null; }
-		
 #endif
 		@Override
 		public abstract	BI_ITERATOR KEY_GENERIC_TYPE iterator();
@@ -1202,6 +1295,15 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			int index = 0;
+			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
+				action.accept(index++, entry.key);
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -1213,7 +1315,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
-				if(filter.TEST_VALUE(entry.key)) return true;
+				if(filter.test(entry.key)) return true;
 			}
 			return false;
 		}
@@ -1222,7 +1324,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
-				if(filter.TEST_VALUE(entry.key)) return false;
+				if(filter.test(entry.key)) return false;
 			}
 			return true;
 		}
@@ -1231,7 +1333,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
-				if(!filter.TEST_VALUE(entry.key)) return false;
+				if(!filter.test(entry.key)) return false;
 			}
 			return true;
 		}
@@ -1260,7 +1362,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		
 #endif
 		@Override
-		public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			KEY_TYPE state = EMPTY_VALUE;
 			boolean empty = true;
@@ -1272,16 +1374,16 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 				}
 				state = operator.APPLY_VALUE(state, entry.key);
 			}
-			return state;
+			return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 		}
 		
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
-				if(filter.TEST_VALUE(entry.key)) return entry.key;
+				if(filter.test(entry.key)) return OPTIONAL.GET_OPTIONAL(entry.key);
 			}
-			return EMPTY_VALUE;
+			return OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1289,7 +1391,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			Objects.requireNonNull(filter);
 			int result = 0;
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
-				if(filter.TEST_VALUE(entry.key)) result++;
+				if(filter.test(entry.key)) result++;
 			}
 			return result;
 		}
@@ -1298,6 +1400,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		{
 			Entry KEY_GENERIC_TYPE lastReturned;
 			Entry KEY_GENERIC_TYPE next;
+			Entry KEY_GENERIC_TYPE previous;
 			boolean forwards = false;
 			boolean unboundForwardFence;
 			boolean unboundBackwardFence;
@@ -1307,6 +1410,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			public AscendingSubSetIterator(Entry KEY_GENERIC_TYPE first, Entry KEY_GENERIC_TYPE forwardFence, Entry KEY_GENERIC_TYPE backwardFence)
 			{
 				next = first;
+				previous = first == null ? null : first.previous();
 				this.forwardFence = forwardFence == null ? EMPTY_KEY_VALUE : forwardFence.key;
 				this.backwardFence = backwardFence == null ? EMPTY_KEY_VALUE : backwardFence.key;
 				unboundForwardFence = forwardFence == null;
@@ -1322,6 +1426,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			public KEY_TYPE NEXT() {
 				if(!hasNext()) throw new NoSuchElementException();
 				lastReturned = next;
+				previous = next;
 				KEY_TYPE result = next.key;
 				next = next.next();
 				forwards = true;
@@ -1330,15 +1435,16 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			
 			@Override
 			public boolean hasPrevious() {
-                return next != null && (unboundBackwardFence || next.key != backwardFence);
+                return previous != null && (unboundBackwardFence || previous.key != backwardFence);
 			}
 			
 			@Override
 			public KEY_TYPE PREVIOUS() {
 				if(!hasPrevious()) throw new NoSuchElementException();
-				lastReturned = next;
-				KEY_TYPE result = next.key;
-				next = next.previous();
+				lastReturned = previous;
+				next = previous;
+				KEY_TYPE result = previous.key;
+				previous = previous.previous();
 				forwards = false;
 				return result;
 			}
@@ -1346,6 +1452,8 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			@Override
 			public void remove() {
 				if(lastReturned == null) throw new IllegalStateException();
+				if(previous == lastReturned) previous = previous.previous();
+				if(next == lastReturned) next = next.next();
 				if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
 				set.removeNode(lastReturned);
 				lastReturned = null;
@@ -1356,6 +1464,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		{
 			Entry KEY_GENERIC_TYPE lastReturned;
 			Entry KEY_GENERIC_TYPE next;
+			Entry KEY_GENERIC_TYPE previous;
 			boolean forwards = false;
 			boolean unboundForwardFence;
 			boolean unboundBackwardFence;
@@ -1365,6 +1474,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			public DescendingSubSetIterator(Entry KEY_GENERIC_TYPE first, Entry KEY_GENERIC_TYPE forwardFence, Entry KEY_GENERIC_TYPE backwardFence)
 			{
 				next = first;
+				previous = first == null ? null : first.next();
 				this.forwardFence = forwardFence == null ? EMPTY_KEY_VALUE : forwardFence.key;
 				this.backwardFence = backwardFence == null ? EMPTY_KEY_VALUE : backwardFence.key;
 				unboundForwardFence = forwardFence == null;
@@ -1380,6 +1490,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			public KEY_TYPE NEXT() {
 				if(!hasNext()) throw new NoSuchElementException();
 				lastReturned = next;
+				previous = next;
 				KEY_TYPE result = next.key;
 				next = next.previous();
 				forwards = false;
@@ -1388,15 +1499,16 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			
 			@Override
 			public boolean hasPrevious() {
-                return next != null && (unboundBackwardFence || next.key != backwardFence);
+                return previous != null && (unboundBackwardFence || previous.key != backwardFence);
 			}
 			
 			@Override
 			public KEY_TYPE PREVIOUS() {
 				if(!hasPrevious()) throw new NoSuchElementException();
-				lastReturned = next;
-				KEY_TYPE result = next.key;
-				next = next.next();
+				lastReturned = previous;
+				next = previous;
+				KEY_TYPE result = previous.key;
+				previous = previous.next();
 				forwards = true;
 				return result;
 			}
@@ -1404,6 +1516,8 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			@Override
 			public void remove() {
 				if(lastReturned == null) throw new IllegalStateException();
+				if(previous == lastReturned) previous = previous.next();
+				if(next == lastReturned) next = next.previous();
 				if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
 				set.removeNode(lastReturned);
 				lastReturned = null;
@@ -1415,11 +1529,13 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	{
 		Entry KEY_GENERIC_TYPE lastReturned;
 		Entry KEY_GENERIC_TYPE next;
+		Entry KEY_GENERIC_TYPE previous;
 		boolean forwards = false;
 		
 		public AscendingSetIterator(Entry KEY_GENERIC_TYPE first)
 		{
 			next = first;
+			previous = first == null ? null : first.previous();
 		}
 		
 		@Override
@@ -1431,6 +1547,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
 			lastReturned = next;
+			previous = next;
 			KEY_TYPE result = next.key;
 			next = next.next();
 			forwards = true;
@@ -1439,15 +1556,16 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		
 		@Override
 		public boolean hasPrevious() {
-            return next != null;
+            return previous != null;
 		}
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			lastReturned = next;
-			KEY_TYPE result = next.key;
-			next = next.previous();
+			lastReturned = previous;
+			next = previous;
+			KEY_TYPE result = previous.key;
+			previous = previous.previous();
 			forwards = false;
 			return result;
 		}
@@ -1455,6 +1573,8 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		@Override
 		public void remove() {
 			if(lastReturned == null) throw new IllegalStateException();
+			if(lastReturned == previous) previous = previous.previous();
+			if(lastReturned == next) next = next.next();
 			if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
 			removeNode(lastReturned);
 			lastReturned = null;
@@ -1465,11 +1585,13 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	{
 		Entry KEY_GENERIC_TYPE lastReturned;
 		Entry KEY_GENERIC_TYPE next;
+		Entry KEY_GENERIC_TYPE previous;
 		boolean forwards = false;
 
 		public DescendingSetIterator(Entry KEY_GENERIC_TYPE first)
 		{
 			next = first;
+			previous = first == null ? null : first.next();
 		}
 		
 		@Override
@@ -1481,6 +1603,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
 			lastReturned = next;
+			previous = next;
 			KEY_TYPE result = next.key;
 			next = next.previous();
 			forwards = false;
@@ -1489,15 +1612,16 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		
 		@Override
 		public boolean hasPrevious() {
-            return next != null;
+            return previous != null;
 		}
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			lastReturned = next;
-			KEY_TYPE result = next.key;
-			next = next.next();
+			lastReturned = previous;
+			next = previous;
+			KEY_TYPE result = previous.key;
+			previous = previous.next();
 			forwards = true;
 			return result;
 		}
@@ -1505,6 +1629,8 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		@Override
 		public void remove() {
 			if(lastReturned == null) throw new IllegalStateException();
+			if(lastReturned == previous) previous = previous.next();
+			if(lastReturned == next) next = next.previous();
 			if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
 			removeNode(lastReturned);
 			lastReturned = null;

src/builder/resources/speiger/assets/collections/templates/sets/AbstractSet.template

@@ -6,6 +6,7 @@ import java.util.Objects;
 import java.util.Set;
 
 import speiger.src.collections.PACKAGE.collections.ABSTRACT_COLLECTION;
+import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 
 /**
@@ -47,4 +48,105 @@ public abstract class ABSTRACT_SET KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 			return false;
 		}
 	}
+	
+#if ORDERED_SET_FEATURE
+	public static class REVERSED_ORDERED_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE implements ORDERED_SET KEY_GENERIC_TYPE {
+		protected ORDERED_SET KEY_GENERIC_TYPE set;
+		
+		public REVERSED_ORDERED_SET(ORDERED_SET KEY_GENERIC_TYPE set) {
+			this.set = set;
+		}
+		
+		@Override
+		public REVERSED_ORDERED_SET KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		@Override
+		public BI_ITERATOR KEY_GENERIC_TYPE iterator(KEY_TYPE fromElement) {
+			return set.iterator(fromElement);
+		}
+		
+		@Override
+		public BI_ITERATOR KEY_GENERIC_TYPE iterator() {
+			return set.reverseIterator();
+		}
+		
+		@Override
+		public BI_ITERATOR KEY_GENERIC_TYPE reverseIterator() {
+			return set.iterator();
+		}
+		
+		@Override
+		public void addFirst(KEY_TYPE o) {
+			set.addLast(o);
+		}
+		
+		@Override
+		public void addLast(KEY_TYPE o) {
+			set.addFirst(o);
+		}
+		
+		@Override
+#if !TYPE_OBJECT
+		public boolean remove(KEY_TYPE o) {
+#else
+		public boolean remove(Object o) {
+#endif
+			return set.remove(o);
+		}
+		
+		@Override
+		public boolean add(KEY_TYPE o) {
+			return set.add(o);
+		}
+		
+		@Override
+		public boolean addAndMoveToFirst(KEY_TYPE o) {
+			return set.addAndMoveToLast(o);
+		}
+		
+		@Override
+		public boolean addAndMoveToLast(KEY_TYPE o) {
+			return set.addAndMoveToFirst(o);
+		}
+		
+		@Override
+		public boolean moveToFirst(KEY_TYPE o) {
+			return set.moveToLast(o);
+		}
+		
+		@Override
+		public boolean moveToLast(KEY_TYPE o) {
+			return set.moveToFirst(o);
+		}
+		
+		@Override
+		public KEY_TYPE GET_FIRST_KEY() {
+			return set.GET_LAST_KEY();
+		}
+		
+		@Override
+		public KEY_TYPE REMOVE_FIRST_KEY() {
+			return set.REMOVE_LAST_KEY();
+		}
+		
+		@Override
+		public KEY_TYPE GET_LAST_KEY() {
+			return set.GET_FIRST_KEY();
+		}
+		
+		@Override
+		public KEY_TYPE REMOVE_LAST_KEY() {
+			return set.REMOVE_FIRST_KEY();
+		}
+		
+		@Override
+		public ORDERED_SET KEY_GENERIC_TYPE reversed() {
+			return set;
+		}
+		
+		@Override
+		public int size() {
+			return set.size();
+		}
+	}
+#endif
 }

src/builder/resources/speiger/assets/collections/templates/sets/ArraySet.template

@@ -8,16 +8,33 @@ import java.util.function.BiFunction;
 #endif
 import java.util.NoSuchElementException;
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
 import java.util.Set;
-#if PRIMITIVES
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
+#if PRIMITIVES && !JDK_FUNCTION
 import java.util.function.JAVA_PREDICATE;
 #endif
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
-
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
@@ -54,6 +71,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	 * @throws NegativeArraySizeException if the capacity is negative
 	 */
 	public ARRAY_SET(int capacity) {
+		if(capacity < 0) throw new IllegalStateException("Size has to be 0 or greater");
 		data = NEW_KEY_ARRAY(capacity);
 	}
 	
@@ -62,7 +80,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	 * @param array the array that should be used for set.
 	 */
 	public ARRAY_SET(KEY_TYPE[] array) {
-		this(array, array.length);
+		this(array, 0, array.length);
 	}
 	
 	/**
@@ -76,6 +94,18 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		addAll(array, length);
 	}
 	
+	/**
+	 * Constructur using initial Array
+	 * @param array the array that should be used for set.
+	 * @param offset the starting offset of where the array should be copied from
+	 * @param length the amount of elements present within the array
+	 * @throws NegativeArraySizeException if the length is negative
+	 */
+	public ARRAY_SET(KEY_TYPE[] array, int offset, int length) {
+		this(length);
+		addAll(array, offset, length);
+	}
+	
 	/**
 	 * A Helper constructor that allows to create a Set with exactly the same values as the provided collection.
 	 * @param c the elements that should be added to the set.
@@ -119,6 +149,42 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		for(ITERATOR KEY_GENERIC_TYPE iter = s.iterator();iter.hasNext();data[size++] = iter.NEXT());
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ArraySet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, ARRAY_SET<T>, ARRAY_SET<T>> toList() {
+		return Collector.of(ARRAY_SET::new, ARRAY_SET::add, ARRAY_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a ArraySet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> ARRAY_SET KEY_GENERIC_TYPE toList(Stream<T> stream) {
+		return stream.collect(ARRAY_SET::new, ARRAY_SET::add, ARRAY_SET::merge);
+	}
+	
+	private ARRAY_SET<T> merge(ARRAY_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ArraySet
+	 * @return a set with the contents of the Stream
+	 */
+	public static ARRAY_SET toList(JAVA_STREAM stream) {
+		return stream.collect(ARRAY_SET::new, ARRAY_SET::add, ARRAY_SET::addAll);
+	}
+	
+#endif
+#endif
 	@Override
 	public boolean add(KEY_TYPE o) {
 		int index = findIndex(o);
@@ -141,6 +207,25 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	}
 	
 #endif
+	@Override
+	public void addFirst(KEY_TYPE o) {
+		int index = findIndex(o);
+		if(index == -1) {
+			if(data.length == size) data = Arrays.copyOf(data, size == 0 ? 2 : size * 2);
+			System.arraycopy(data, 0, data, 1, size++);
+			data[0] = o;
+		}
+	}
+	
+	@Override
+	public void addLast(KEY_TYPE o) {
+		int index = findIndex(o);
+		if(index == -1) {
+			if(data.length == size) data = Arrays.copyOf(data, size == 0 ? 2 : size * 2);
+			data[size++] = o;
+		}
+	}
+	
 	@Override
 	public boolean addAndMoveToFirst(KEY_TYPE o) {
 		int index = findIndex(o);
@@ -168,7 +253,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		}
 		else if(index != size - 1) {
 			o = data[index];
-			System.arraycopy(data, index+1, data, index, size - index);
+			System.arraycopy(data, index+1, data, index, size - index - 1);
 			data[size-1] = o;
 		}
 		return false;
@@ -212,13 +297,13 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	
 #endif
 	@Override
-	public KEY_TYPE FIRST_KEY() {
+	public KEY_TYPE GET_FIRST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		return data[0];
 	}
 	
 	@Override
-	public KEY_TYPE LAST_KEY() {
+	public KEY_TYPE GET_LAST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		return data[size - 1];
 	}
@@ -347,7 +432,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	
 #endif
 	@Override
-	public KEY_TYPE POLL_FIRST_KEY() {
+	public KEY_TYPE REMOVE_FIRST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		KEY_TYPE result = data[0];
 		System.arraycopy(data, 1, data, 0, --size);
@@ -358,7 +443,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	}
 	
 	@Override
-	public KEY_TYPE POLL_LAST_KEY() {
+	public KEY_TYPE REMOVE_LAST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		size--;
 #if TYPE_OBJECT
@@ -390,6 +475,12 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		for(int i = 0;i<size;action.accept(data[i++]));
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		for(int i = 0;i<size;action.accept(i, data[i++]));
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -401,7 +492,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(data[i])) return true;
+			if(filter.test(data[i])) return true;
 		}
 		return false;
 	}
@@ -410,7 +501,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(data[i])) return false;
+			if(filter.test(data[i])) return false;
 		}
 		return true;
 	}
@@ -419,18 +510,18 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(!filter.TEST_VALUE(data[i])) return false;
+			if(!filter.test(data[i])) return false;
 		}
 		return true;
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(data[i])) return data[i];
+			if(filter.test(data[i])) return OPTIONAL.GET_OPTIONAL(data[i]);
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 #if !TYPE_OBJECT
@@ -457,7 +548,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -469,7 +560,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 			}
 			state = operator.APPLY_VALUE(state, data[i]);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
@@ -477,7 +568,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		Objects.requireNonNull(filter);
 		int result = 0;
 		for(int i = 0;i<size;i++) {
-			if(filter.TEST_VALUE(data[i])) result++;
+			if(filter.test(data[i])) result++;
 		}
 		return result;
 	}
@@ -498,13 +589,18 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	
 	@Override
 	public BI_ITERATOR KEY_GENERIC_TYPE iterator() {
-		return new SetIterator(0);
+		return new SetIterator(true, 0);
+	}
+	
+	@Override
+	public BI_ITERATOR KEY_GENERIC_TYPE reverseIterator() {
+		return new SetIterator(false, size);
 	}
 	
 	@Override
 	public BI_ITERATOR KEY_GENERIC_TYPE iterator(KEY_TYPE fromElement) {
 		int index = findIndex(fromElement);
-		if(index != -1) return new SetIterator(index);
+		if(index != -1) return new SetIterator(true, index);
 		throw new NoSuchElementException();
 	}
 	
@@ -538,6 +634,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	@Override
 	@Deprecated
 	public Object[] toArray() {
+		if(isEmpty()) return ObjectArrays.EMPTY_ARRAY;
 		Object[] obj = new Object[size()];
 		for(int i = 0;i<size();i++)
 			obj[i] = KEY_TO_OBJ(data[i]);
@@ -555,387 +652,58 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		return a;
 	}
 		
-//	Disabled until a Proper Implementation can be thought out or it is decided that the interface is thrown out.
-//	private class SubSet extends ABSTRACT_SET KEY_GENERIC_TYPE implements SORTED_SET KEY_GENERIC_TYPE {
-//		int offset;
-//		int length;
-//		
-//		SubSet(int offset, int length) {
-//			this.offset = offset;
-//			this.length = length;
-//		}
-//		
-//		int end() { return offset+length; }
-//
-//		@Override
-//		public boolean add(KEY_TYPE o) {
-//			int index = findIndex(o);
-//			if(index == -1) {
-//				if(data.length == size) data = Arrays.copyOf(data, size == 0 ? 2 : size * 2);
-//				if(end() != size) System.arraycopy(data, end(), data, end()+1, size-(offset+length));
-//				data[end()] = o;
-//				size++;
-//				length++;
-//				return true;
-//			}
-//			return false;
-//		}
-//
-//		@Override
-//		public boolean addAndMoveToFirst(KEY_TYPE o) {
-//			int index = findIndex(o);
-//			if(index == -1) {
-//				if(data.length == size) data = Arrays.copyOf(data, size == 0 ? 2 : size * 2);
-//				System.arraycopy(data, offset, data, offset+1, size-offset);
-//				data[offset] = o;
-//				size++;
-//				length++;
-//				return true;
-//			}
-//			else if(index != 0) {
-//				o = data[index];
-//				System.arraycopy(data, offset, data, offset+1, index-offset);
-//				data[offset] = o;
-//			}
-//			return false;
-//		}
-//		
-//		@Override
-//		public boolean addAndMoveToLast(KEY_TYPE o) {
-//			int index = findIndex(o);
-//			if(index == -1) {
-//				if(data.length == size) data = Arrays.copyOf(data, size == 0 ? 2 : size * 2);
-//				System.arraycopy(data, end()+1, data, end(), size-end());
-//				data[end()] = o;
-//				size++;
-//				length++;
-//				return true;
-//			}
-//			else if(index != 0) {
-//				o = data[index];
-//				System.arraycopy(data, offset+1, data, offset, index-offset);
-//				data[offset+length] = o;
-//			}
-//			return false;
-//		}
-//		
-//		@Override
-//		public boolean moveToFirst(KEY_TYPE o) {
-//			int index = findIndex(o);
-//			if(index > offset) {
-//				o = data[index];
-//				System.arraycopy(data, offset, data, offset+1, index-offset);
-//				data[offset] = o;
-//				return true;
-//			}
-//			return false;
-//		}
-//		
-//		@Override
-//		public boolean moveToLast(KEY_TYPE o) {
-//			int index = findIndex(o);
-//			if(index != -1 && index < end()-1) {
-//				o = data[index];
-//				System.arraycopy(data, index+1, data, index, end()-index-1);
-//				data[end()-1] = o;
-//				return true;
-//			}
-//			return false;
-//		}
-//		
-//#if !TYPE_OBJECT
-//		@Override
-//		public boolean contains(KEY_TYPE e) {
-//			return findIndex(e) != -1;
-//		}
-//		
-//#endif
-//		@Override
-//		public boolean contains(Object e) {
-//			return findIndex(e) != -1;
-//		}
-//		
-//		@Override
-//		public KEY_TYPE FIRST_KEY() {
-//			if(length == 0) throw new NoSuchElementException();
-//			return data[offset];
-//		}
-//		
-//		@Override
-//		public KEY_TYPE LAST_KEY() {
-//			if(length == 0) throw new NoSuchElementException();
-//			return data[end()-1];
-//		}
-//		
-//#if !TYPE_OBJECT
-//		@Override
-//		public boolean remove(KEY_TYPE o) {
-//			int index = findIndex(o);
-//			if(index != -1) {
-//				size--;
-//				length--;
-//				if(index != size) System.arraycopy(data, index+1, data, index, size - index);
-//				return true;
-//			}
-//			return false;
-//		}
-//		
-//#endif
-//		@Override
-//		public boolean remove(Object o) {
-//			int index = findIndex(o);
-//			if(index != -1) {
-//				size--;
-//				length--;
-//				if(index != size) System.arraycopy(data, index+1, data, index, size - index);
-//#if TYPE_OBJECT
-//				data[size] = EMPTY_KEY_VALUE;
-//#endif
-//				return true;
-//			}
-//			return false;
-//		}
-//		
-//		@Override
-//		public KEY_TYPE POLL_FIRST_KEY() {
-//			if(length == 0) throw new NoSuchElementException();
-//			size--;
-//			length--;
-//			KEY_TYPE result = data[offset];
-//			System.arraycopy(data, offset+1, data, offset, size-offset);
-//#if TYPE_OBJECT
-//			data[size] = EMPTY_KEY_VALUE;
-//#endif
-//			return result;
-//		}
-//		
-//		@Override
-//		public KEY_TYPE POLL_LAST_KEY() {
-//			if(length == 0) throw new NoSuchElementException();
-//			KEY_TYPE result = data[offset+length];
-//			size--;
-//			length--;
-//			System.arraycopy(data, end()+1, data, end(), size-end());
-//#if TYPE_OBJECT
-//			data[size] = EMPTY_KEY_VALUE;
-//#endif
-//			return result;
-//		}
-//		
-//		@Override
-//		public COMPARATOR KEY_GENERIC_TYPE comparator() {
-//			return null;
-//		}
-//
-//		@Override
-//		public BI_ITERATOR KEY_GENERIC_TYPE iterator() {
-//			return new SetIterator(offset);
-//		}
-//
-//		@Override
-//		public BI_ITERATOR KEY_GENERIC_TYPE iterator(KEY_TYPE fromElement) {
-//			int index = findIndex(fromElement);
-//			if(index != -1) return new SetIterator(index);
-//			throw new NoSuchElementException();
-//		}
-//		
-//		@Override
-//		public SubSet copy() { throw new UnsupportedOperationException(); }
-//		
-//		@Override
-//		public SORTED_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, KEY_TYPE toElement) {
-//			int fromIndex = findIndex(fromElement);
-//			int toIndex = findIndex(toElement);
-//			if(fromIndex == -1 || toIndex == -1) throw new NoSuchElementException();
-//			return new SubSet(fromIndex, toIndex - fromIndex + 1);
-//		}
-//
-//		@Override
-//		public SORTED_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement) {
-//			int toIndex = findIndex(toElement);
-//			if(toIndex == -1) throw new NoSuchElementException();
-//			return new SubSet(0, toIndex+1);
-//		}
-//
-//		@Override
-//		public SORTED_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement) {
-//			int fromIndex = findIndex(fromElement);
-//			if(fromIndex == -1) throw new NoSuchElementException();
-//			return new SubSet(fromIndex, size - fromIndex);
-//		}
-//		
-//		@Override
-//		public int size() {
-//			return length;
-//		}
-//		
-//#if !TYPE_OBJECT
-//		@Override
-//		public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
-//			if(a == null || a.length < size()) return Arrays.copyOfRange(data, offset, end());
-//			System.arraycopy(data, offset, a, 0, size());
-//			return a;
-//		}
-//		
-//#endif
-//		@Override
-//		@Deprecated
-//		public Object[] toArray() {
-//			Object[] obj = new Object[size()];
-//			for(int i = 0;i<size();i++)
-//				obj[i] = KEY_TO_OBJ(data[offset+i]);
-//			return obj;
-//		}
-//		
-//		@Override
-//		@Primitive
-//		public <E> E[] toArray(E[] a) {
-//			if(a == null) a = (E[])new Object[size()];
-//			else if(a.length < size()) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size());
-//			for(int i = 0;i<size();i++)
-//				a[i] = (E)KEY_TO_OBJ(data[offset+i]);
-//			return a;
-//		}
-//		
-//#if !TYPE_OBJECT
-//		protected int findIndex(KEY_TYPE o) {
-//			for(int i = length-1;i>=0;i--)
-//				if(KEY_EQUALS(data[offset+i], o)) return i + offset;
-//			return -1;
-//		}
-//		
-//#endif
-//		protected int findIndex(Object o) {
-//			for(int i = length-1;i>=0;i--)
-//				if(EQUALS_KEY_TYPE(data[offset+i], o)) return i + offset;
-//			return -1;
-//		}
-//		
-//		private class SetIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
-//			int index;
-//			int lastReturned = -1;
-//			
-//			public SetIterator(int index) {
-//				this.index = index;
-//			}
-//			
-//			@Override
-//			public boolean hasNext() {
-//				return index < size();
-//			}
-//			
-//			@Override
-//			public KEY_TYPE NEXT() {
-//				if(!hasNext()) throw new NoSuchElementException();
-//				lastReturned = index;
-//				return data[index++];
-//			}
-//			
-//			@Override
-//			public boolean hasPrevious() {
-//				return index > 0;
-//			}
-//			
-//			@Override
-//			public KEY_TYPE PREVIOUS() {
-//				if(!hasPrevious()) throw new NoSuchElementException();
-//				lastReturned = index;
-//				return data[index--];
-//			}
-//			
-//			@Override
-//			public int nextIndex() {
-//				return index;
-//			}
-//			
-//			@Override
-//			public int previousIndex() {
-//				return index-1;
-//			}
-//			
-//			@Override
-//			public void remove() {
-//				if(lastReturned == -1)
-//					throw new IllegalStateException();
-//				SubSet.this.remove(data[lastReturned]);
-//				if(lastReturned < index)
-//					index--;
-//				lastReturned = -1;
-//			}
-//			
-//		#if TYPE_OBJECT
-//			@Override
-//			public void set(Object e) { throw new UnsupportedOperationException(); }
-//			
-//			@Override
-//			public void add(Object e) { throw new UnsupportedOperationException(); }
-//			
-//		#else
-//			@Override
-//			public void set(KEY_TYPE e) { throw new UnsupportedOperationException(); }
-//		
-//			@Override
-//			public void add(KEY_TYPE e) { throw new UnsupportedOperationException(); }
-//			
-//		#endif
-//			@Override
-//			public int skip(int amount) {
-//				if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
-//				int steps = Math.min(amount, (size() - 1) - index);
-//				index += steps;
-//				return steps;
-//			}
-//			
-//			@Override
-//			public int back(int amount) {
-//				if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
-//				int steps = Math.min(amount, index);
-//				index -= steps;
-//				return steps;
-//			}
-//		}
-//	}
-	
 	private class SetIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
+		boolean forward;
 		int index;
 		int lastReturned = -1;
 		
-		public SetIterator(int index) {
+		public SetIterator(boolean forward, int index) {
+			this.forward = forward;
 			this.index = index;
 		}
 		
 		@Override
 		public boolean hasNext() {
-			return index < size();
+			return forward ? index < size() : index > 0;
 		}
 		
 		@Override
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
-			lastReturned = index;
-			return data[index++];
+			if(forward) {
+				lastReturned = index;
+				return data[index++];				
+			}
+			index--;
+			return data[(lastReturned = index)];
 		}
 		
 		@Override
 		public boolean hasPrevious() {
-			return index > 0;
+			return forward ? index > 0 : index < size();
 		}
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
 			if(!hasPrevious()) throw new NoSuchElementException();
+			if(forward) {
+				index--;
+				return data[(lastReturned = index)];
+			}
 			lastReturned = index;
-			return data[index--];
+			return data[index++];
 		}
 		
 		@Override
 		public int nextIndex() {
-			return index;
+			if(forward) return index;
+			return size - index;
 		}
 		
 		@Override
 		public int previousIndex() {
-			return index-1;
+			if(forward) return index-1;
+			return (size - index)-1;
 		}
 		
 		@Override
@@ -964,16 +732,26 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		@Override
 		public int skip(int amount) {
 			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
-			int steps = Math.min(amount, (size() - 1) - index);
-			index += steps;
-			return steps;
+			return forward ? moveForward(amount) : moveBackwards(amount);
 		}
 		
 		@Override
 		public int back(int amount) {
 			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+			return forward ? moveBackwards(amount) : moveForward(amount);
+		}
+		
+		private int moveForward(int amount) {
+			int steps = Math.min(amount, size() - index);
+			index += steps;
+			if(steps > 0) lastReturned = Math.min(index-1, size()-1);
+			return steps;
+		}
+		
+		private int moveBackwards(int amount) {
 			int steps = Math.min(amount, index);
 			index -= steps;
+			if(steps > 0) lastReturned = Math.min(index, size()-1);
 			return steps;
 		}
 	}

src/builder/resources/speiger/assets/collections/templates/sets/ImmutableOpenHashSet.template

@@ -9,6 +9,12 @@ import java.util.Collection;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#endif
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
@@ -16,11 +22,20 @@ import speiger.src.collections.PACKAGE.collections.ITERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.utils.ObjectArrays;
+#endif
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 
 import speiger.src.collections.utils.HashUtil;
@@ -249,6 +264,10 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 	@Override
 	public boolean addAll(COLLECTION KEY_GENERIC_TYPE c) { throw new UnsupportedOperationException(); }
 	@Override
+	public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+	@Override
+	public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+	@Override
 	public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 	@Override
 	public boolean addAndMoveToLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
@@ -276,22 +295,22 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 	}
 	
 	@Override
-	public KEY_TYPE FIRST_KEY() {
+	public KEY_TYPE GET_FIRST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		return keys[firstIndex];
 	}
 	
 	@Override
-	public KEY_TYPE POLL_FIRST_KEY() { throw new UnsupportedOperationException(); }
+	public KEY_TYPE REMOVE_FIRST_KEY() { throw new UnsupportedOperationException(); }
 	
 	@Override
-	public KEY_TYPE LAST_KEY() {
+	public KEY_TYPE GET_LAST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		return keys[lastIndex];
 	}
 	
 	@Override
-	public KEY_TYPE POLL_LAST_KEY() { throw new UnsupportedOperationException(); }
+	public KEY_TYPE REMOVE_LAST_KEY() { throw new UnsupportedOperationException(); }
 	@Override
 	public boolean remove(Object o) { throw new UnsupportedOperationException(); }
 
@@ -323,6 +342,17 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		}
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		int count = 0;
+		int index = firstIndex;
+		while(index != -1) {
+			action.accept(count++, keys[index]);
+			index = (int)links[index];
+		}
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -338,7 +368,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) return true;
+			if(filter.test(keys[index])) return true;
 			index = (int)links[index];
 		}
 		return false;
@@ -349,7 +379,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) return false;
+			if(filter.test(keys[index])) return false;
 			index = (int)links[index];
 		}
 		return true;
@@ -360,7 +390,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(!filter.TEST_VALUE(keys[index])) return false;
+			if(!filter.test(keys[index])) return false;
 			index = (int)links[index];
 		}
 		return true;
@@ -394,7 +424,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -407,18 +437,18 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 			else state = operator.APPLY_VALUE(state, keys[index]);
 			index = (int)links[index];
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) return keys[index];
+			if(filter.test(keys[index])) return OPTIONAL.GET_OPTIONAL(keys[index]);
 			index = (int)links[index];
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 	@Override
@@ -427,7 +457,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		int result = 0;
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) result++;
+			if(filter.test(keys[index])) result++;
 			index = (int)links[index];
 		}
 		return result;
@@ -435,7 +465,12 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 	
 	@Override
 	public LIST_ITERATOR KEY_GENERIC_TYPE iterator() {
-		return new SetIterator();
+		return new SetIterator(true);
+	}
+	
+	@Override
+	public LIST_ITERATOR KEY_GENERIC_TYPE reverseIterator() {
+		return new SetIterator(false);
 	}
 	
 	@Override
@@ -443,6 +478,41 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		return new SetIterator(fromElement);
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
+		if(a == null || a.length < size()) a = new KEY_TYPE[size()];
+		for(int i = 0, index = firstIndex;index != -1;i++,index = (int)links[index]) {
+			a[i] = keys[index];
+		}
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
+		return a;
+	}
+	
+#endif
+	@Override
+	@Deprecated
+	public Object[] toArray() {
+		if(isEmpty()) return ObjectArrays.EMPTY_ARRAY;
+		Object[] obj = new Object[size()];
+		for(int i = 0, index = firstIndex;index != -1;i++,index = (int)links[index]) {
+			obj[i] = KEY_TO_OBJ(keys[index]);
+		}
+		return obj;
+	}
+	
+	@Override
+	@Primitive
+	public <E> E[] toArray(E[] a) {
+		if(a == null) a = (E[])new Object[size()];
+		else if(a.length < size()) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size());
+		for(int i = 0, index = firstIndex;index != -1;i++,index = (int)links[index]) {
+			a[i] = (E)KEY_TO_OBJ(keys[index]);
+		}
+		if (a.length > size) a[size] = null;
+		return a;
+	}
+	
 	@Override
 	public IMMUTABLE_HASH_SET KEY_GENERIC_TYPE copy() {
 		IMMUTABLE_HASH_SET KEY_GENERIC_TYPE set = new IMMUTABLE_HASH_SETBRACES();
@@ -466,16 +536,20 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 	}
 
 	private class SetIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
+		boolean forward;
 		int previous = -1;
 		int next = -1;
 		int current = -1;
-		int index = 0;
+		int index = -1;
 		
-		SetIterator() {
-			next = firstIndex;
+		SetIterator(boolean start) {
+			this.forward = start;
+			if(start) next = firstIndex;
+			else previous = lastIndex;
 		}
 		
 		SetIterator(KEY_TYPE from) {
+			this.forward = true;
 			if(KEY_EQUALS_NULL(from)) {
 				if(containsNull) {
 					next = (int) links[nullIndex];
@@ -502,26 +576,62 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 			}
 		}
 		
+		@Override
+		public int skip(int amount) {
+			int result = forward ? moveForward(amount) : moveBackwards(amount);
+			if(index >= 0) index+=result;
+			return result;
+		}
+		
+		@Override
+		public int back(int amount) {
+			int result = forward ? moveBackwards(amount) : moveForward(amount);
+			if(index >= 0) index-=result;
+			return result;
+		}
+		
+		private int moveForward(int amount) {
+			int result = 0;
+			while(next != -1 && result != amount) {
+				current = previous = next;
+				next = (int)(links[current]);
+				result++;
+			}
+			return result;
+		}
+		
+		private int moveBackwards(int amount) {
+			int result = 0;
+			while(previous != -1 && result != amount) {
+				current = next = previous;
+				previous = (int)(links[current] >> 32);
+				result++;
+			}
+			return result;
+		}
+		
 		@Override
 		public boolean hasNext() {
-			return next != -1;
+			return (forward ? next : previous) != -1;
 		}
 
 		@Override
 		public boolean hasPrevious() {
-			return previous != -1;
+			return (forward ? previous : next) != -1;
 		}
 		
 		@Override
 		public int nextIndex() {
 			ensureIndexKnown();
-			return index;
+			if(forward) return index;
+			return size - index;
 		}
 		
 		@Override
 		public int previousIndex() {
 			ensureIndexKnown();
-			return index - 1;
+			if(forward) return index-1;
+			return (size - index)-1;
 		}
 		
 		@Override
@@ -530,9 +640,8 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		@Override
 		public KEY_TYPE PREVIOUS() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			current = previous;
-			previous = (int)(links[current] >> 32);
-			next = current;
+			if(forward) moveBackwards();
+			else moveForwards();
 			if(index >= 0) index--;
 			return keys[current];
 		}
@@ -540,13 +649,22 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		@Override
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
-			current = next;
-			next = (int)(links[current]);
-			previous = current;
+			if(forward) moveForwards();
+			else moveBackwards();
 			if(index >= 0) index++;
 			return keys[current];
 		}
 		
+		private void moveBackwards() {
+			current = next = previous;
+			previous = (int)(links[current] >> 32);
+		}
+		
+		private void moveForwards() {
+			current = previous = next;
+			next = (int)(links[current]);
+		}
+		
 		private void ensureIndexKnown() {
 			if(index == -1) {
 				if(previous == -1) {

src/builder/resources/speiger/assets/collections/templates/sets/LinkedOpenCustomHashSet.template

@@ -9,19 +9,38 @@ import java.util.Objects;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 #endif
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
+import speiger.src.collections.objects.utils.ObjectArrays;
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.utils.STRATEGY;
 import speiger.src.collections.utils.HashUtil;
@@ -123,7 +142,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	 * @throws IllegalStateException if offset and length causes to step outside of the arrays range
 	 */
 	public LINKED_CUSTOM_HASH_SET(KEY_TYPE[] array, int offset, int length, float loadFactor, STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
-		this(length < 0 ? 0 : length, strategy);
+		this(length, strategy);
 		SanityChecks.checkArrayCapacity(array.length, offset, length);
 		for(int i = 0;i<length;i++) add(array[offset+i]);
 	}
@@ -228,6 +247,82 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	}
 	
 #endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a LinkedCustomHashSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, LINKED_CUSTOM_HASH_SET<T>, LINKED_CUSTOM_HASH_SET<T>> toLinkedSet(STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return Collector.of(() -> new LINKED_CUSTOM_HASH_SET<>(strategy), LINKED_CUSTOM_HASH_SET::add, LINKED_CUSTOM_HASH_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a LinkedCustomHashSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE toLinkedSet(Stream<T> stream, STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return stream.collect(() -> new LINKED_CUSTOM_HASH_SET<>(strategy), LINKED_CUSTOM_HASH_SET::add, LINKED_CUSTOM_HASH_SET::merge);
+	}
+	
+	private LINKED_CUSTOM_HASH_SET<T> merge(LINKED_CUSTOM_HASH_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a LinkedCustomHashSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static LINKED_CUSTOM_HASH_SET toList(JAVA_STREAM stream, STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return stream.collect(() -> new LINKED_CUSTOM_HASH_SET(strategy), LINKED_CUSTOM_HASH_SET::add, LINKED_CUSTOM_HASH_SET::addAll);
+	}
+	
+#endif
+#endif
+	@Override
+	public void addFirst(KEY_TYPE o) {
+		if(strategy.equals(o, EMPTY_KEY_VALUE)) {
+			if(containsNull) return;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+			moveToFirstIndex(nullIndex);
+		}
+		else {
+			int pos = HashUtil.mix(strategy.hashCode(o)) & mask;
+			while(!strategy.equals(keys[pos], EMPTY_KEY_VALUE)) {
+				if(strategy.equals(keys[pos], o)) return;
+				pos = ++pos & mask;
+			}
+			keys[pos] = o;
+			onNodeAdded(pos);
+			moveToFirstIndex(pos);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+	}
+	
+	@Override
+	public void addLast(KEY_TYPE o) {
+		if(strategy.equals(o, EMPTY_KEY_VALUE)) {
+			if(containsNull) return;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+		}
+		else {
+			int pos = HashUtil.mix(strategy.hashCode(o)) & mask;
+			while(!strategy.equals(keys[pos], EMPTY_KEY_VALUE)) {
+				if(strategy.equals(keys[pos], o)) return;
+				pos = ++pos & mask;
+			}
+			keys[pos] = o;
+			onNodeAdded(pos);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+	}
+	
 	@Override
 	public boolean addAndMoveToFirst(KEY_TYPE o) {
 		if(strategy.equals(o, EMPTY_KEY_VALUE)) {
@@ -284,7 +379,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	
 	@Override
 	public boolean moveToFirst(KEY_TYPE o) {
-		if(strategy.equals(FIRST_KEY(), o)) return false;
+		if(isEmpty() || strategy.equals(GET_FIRST_KEY(), o)) return false;
 		if(strategy.equals(o, EMPTY_KEY_VALUE)) {
 			if(containsNull) {
 				moveToFirstIndex(nullIndex);
@@ -306,7 +401,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	
 	@Override
 	public boolean moveToLast(KEY_TYPE o) {
-		if(strategy.equals(LAST_KEY(), o)) return false;
+		if(isEmpty() || strategy.equals(GET_LAST_KEY(), o)) return false;
 		if(strategy.equals(o, EMPTY_KEY_VALUE)) {
 			if(containsNull) {
 				moveToLastIndex(nullIndex);
@@ -363,17 +458,16 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	}
 	
 	@Override
-	public KEY_TYPE FIRST_KEY() {
+	public KEY_TYPE GET_FIRST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		return keys[firstIndex];
 	}
 	
 	@Override
-	public KEY_TYPE POLL_FIRST_KEY() {
+	public KEY_TYPE REMOVE_FIRST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		int pos = firstIndex;
-		firstIndex = (int)links[pos];
-		if(0 <= firstIndex) links[firstIndex] |= 0xFFFFFFFF00000000L;
+		onNodeRemoved(pos);
 		KEY_TYPE result = keys[pos];
 		size--;
 		if(strategy.equals(result, EMPTY_KEY_VALUE)) {
@@ -386,17 +480,16 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	}
 	
 	@Override
-	public KEY_TYPE LAST_KEY() {
+	public KEY_TYPE GET_LAST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		return keys[lastIndex];
 	}
 	
 	@Override
-	public KEY_TYPE POLL_LAST_KEY() {
+	public KEY_TYPE REMOVE_LAST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		int pos = lastIndex;
-		lastIndex = (int)(links[pos] >>> 32);
-		if(0 <= lastIndex) links[lastIndex] |= 0xFFFFFFFFL;
+		onNodeRemoved(pos);
 		KEY_TYPE result = keys[pos];
 		size--;
 		if(strategy.equals(result, EMPTY_KEY_VALUE)) {
@@ -510,7 +603,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	@Override
 	public void clearAndTrim(int size) {
 		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-		if(request >= size) {
+		if(request >= nullIndex) {
 			clear();
 			return;
 		}
@@ -524,6 +617,41 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		containsNull = false;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
+		if(a == null || a.length < size()) a = new KEY_TYPE[size()];
+		for(int i = 0, index = firstIndex;index != -1;i++,index = (int)links[index]) {
+			a[i] = keys[index];
+		}
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
+		return a;
+	}
+	
+#endif
+	@Override
+	@Deprecated
+	public Object[] toArray() {
+		if(isEmpty()) return ObjectArrays.EMPTY_ARRAY;
+		Object[] obj = new Object[size()];
+		for(int i = 0, index = firstIndex;index != -1;i++,index = (int)links[index]) {
+			obj[i] = KEY_TO_OBJ(keys[index]);
+		}
+		return obj;
+	}
+	
+	@Override
+	@Primitive
+	public <E> E[] toArray(E[] a) {
+		if(a == null) a = (E[])new Object[size()];
+		else if(a.length < size()) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size());
+		for(int i = 0, index = firstIndex;index != -1;i++,index = (int)links[index]) {
+			a[i] = (E)KEY_TO_OBJ(keys[index]);
+		}
+		if (a.length > size) a[size] = null;
+		return a;
+	}
+	
 	@Override
 	public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
 		Objects.requireNonNull(action);
@@ -534,6 +662,17 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		}
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		int count = 0;
+		int index = firstIndex;
+		while(index != -1) {
+			action.accept(count++, keys[index]);
+			index = (int)links[index];
+		}
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -549,7 +688,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) return true;
+			if(filter.test(keys[index])) return true;
 			index = (int)links[index];
 		}
 		return false;
@@ -560,7 +699,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) return false;
+			if(filter.test(keys[index])) return false;
 			index = (int)links[index];
 		}
 		return true;
@@ -571,7 +710,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(!filter.TEST_VALUE(keys[index])) return false;
+			if(!filter.test(keys[index])) return false;
 			index = (int)links[index];
 		}
 		return true;
@@ -605,7 +744,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -618,18 +757,18 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 			else state = operator.APPLY_VALUE(state, keys[index]);
 			index = (int)links[index];
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) return keys[index];
+			if(filter.test(keys[index])) return OPTIONAL.GET_OPTIONAL(keys[index]);
 			index = (int)links[index];
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 	@Override
@@ -638,7 +777,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		int result = 0;
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) result++;
+			if(filter.test(keys[index])) result++;
 			index = (int)links[index];
 		}
 		return result;
@@ -646,7 +785,12 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	
 	@Override
 	public LIST_ITERATOR KEY_GENERIC_TYPE iterator() {
-		return new SetIterator();
+		return new SetIterator(true);
+	}
+	
+	@Override
+	public LIST_ITERATOR KEY_GENERIC_TYPE reverseIterator() {
+		return new SetIterator(false);
 	}
 	
 	@Override
@@ -671,16 +815,20 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	}
 	
 	private class SetIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
+		boolean forward;
 		int previous = -1;
 		int next = -1;
 		int current = -1;
-		int index = 0;
+		int index = -1;
 		
-		SetIterator() {
-			next = firstIndex;
+		SetIterator(boolean start) {
+			this.forward = start;
+			if(start) next = firstIndex;
+			else previous = lastIndex;
 		}
 		
 		SetIterator(KEY_TYPE from) {
+			this.forward = true;
 			if(strategy.equals(from, EMPTY_KEY_VALUE)) {
 				if(containsNull) {
 					next = (int) links[nullIndex];
@@ -709,24 +857,60 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		
 		@Override
 		public boolean hasNext() {
-			return next != -1;
+			return (forward ? next : previous) != -1;
 		}
 
 		@Override
 		public boolean hasPrevious() {
-			return previous != -1;
+			return (forward ? previous : next) != -1;
+		}
+		
+		@Override
+		public int skip(int amount) {
+			int result = forward ? moveForward(amount) : moveBackwards(amount);
+			if(index >= 0) index+=result;
+			return result;
+		}
+		
+		@Override
+		public int back(int amount) {
+			int result = forward ? moveBackwards(amount) : moveForward(amount);
+			if(index >= 0) index-=result;
+			return result;
+		}
+		
+		private int moveForward(int amount) {
+			int result = 0;
+			while(next != -1 && result != amount) {
+				current = previous = next;
+				next = (int)(links[current]);
+				result++;
+			}
+			return result;
+		}
+		
+		private int moveBackwards(int amount) {
+			int result = 0;
+			while(previous != -1 && result != amount) {
+				current = next = previous;
+				previous = (int)(links[current] >> 32);
+				result++;
+			}
+			return result;
 		}
 		
 		@Override
 		public int nextIndex() {
 			ensureIndexKnown();
-			return index;
+			if(forward) return index;
+			return size - index;
 		}
 		
 		@Override
 		public int previousIndex() {
 			ensureIndexKnown();
-			return index - 1;
+			if(forward) return index-1;
+			return (size - index)-1;
 		}
 		
 		@Override
@@ -775,9 +959,8 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		@Override
 		public KEY_TYPE PREVIOUS() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			current = previous;
-			previous = (int)(links[current] >> 32);
-			next = current;
+			if(forward) moveBackwards();
+			else moveForwards();
 			if(index >= 0) index--;
 			return keys[current];
 		}
@@ -785,13 +968,22 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		@Override
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
-			current = next;
-			next = (int)(links[current]);
-			previous = current;
+			if(forward) moveForwards();
+			else moveBackwards();
 			if(index >= 0) index++;
 			return keys[current];
 		}
 		
+		private void moveBackwards() {
+			current = next = previous;
+			previous = (int)(links[current] >> 32);
+		}
+		
+		private void moveForwards() {
+			current = previous = next;
+			next = (int)(links[current]);
+		}
+		
 		private void ensureIndexKnown() {
 			if(index == -1) {
 				if(previous == -1) {

src/builder/resources/speiger/assets/collections/templates/sets/LinkedOpenHashSet.template

@@ -5,10 +5,22 @@ import java.util.Collection;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
 #if TYPE_OBJECT
 import java.util.function.Consumer;
 import java.util.function.BiFunction;
 #endif
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 #if !TYPE_OBJECT
@@ -18,13 +30,20 @@ import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 #endif
+import speiger.src.collections.objects.utils.ObjectArrays;
 import speiger.src.collections.utils.HashUtil;
 import speiger.src.collections.utils.SanityChecks;
 
@@ -110,7 +129,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	 * @throws IllegalStateException if offset and length causes to step outside of the arrays range
 	 */
 	public LINKED_HASH_SET(KEY_TYPE[] array, int offset, int length, float loadFactor) {
-		this(length < 0 ? 0 : length);
+		this(length);
 		SanityChecks.checkArrayCapacity(array.length, offset, length);
 		for(int i = 0;i<length;i++) add(array[offset+i]);
 	}
@@ -199,6 +218,82 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	}
 	
 #endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a LinkedHashSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, LINKED_HASH_SET<T>, LINKED_HASH_SET<T>> toLinkedSet() {
+		return Collector.of(LINKED_HASH_SET::new, LINKED_HASH_SET::add, LINKED_HASH_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a LinkedHashSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> LINKED_HASH_SET KEY_GENERIC_TYPE toLinkedSet(Stream<T> stream) {
+		return stream.collect(LINKED_HASH_SET::new, LINKED_HASH_SET::add, LINKED_HASH_SET::merge);
+	}
+	
+	private LINKED_HASH_SET<T> merge(LINKED_HASH_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a LinkedHashSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static LINKED_HASH_SET toLinkedSet(JAVA_STREAM stream) {
+		return stream.collect(LINKED_HASH_SET::new, LINKED_HASH_SET::add, LINKED_HASH_SET::addAll);
+	}
+	
+#endif
+#endif
+	@Override
+	public void addFirst(KEY_TYPE o) {
+		if(KEY_EQUALS_NULL(o)) {
+			if(containsNull) return;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+			moveToFirstIndex(nullIndex);
+		}
+		else {
+			int pos = HashUtil.mix(KEY_TO_HASH(o)) & mask;
+			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
+				if(KEY_EQUALS(keys[pos], o)) return;
+				pos = ++pos & mask;
+			}
+			keys[pos] = o;
+			onNodeAdded(pos);
+			moveToFirstIndex(pos);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+	}
+	
+	@Override
+	public void addLast(KEY_TYPE o) {
+		if(KEY_EQUALS_NULL(o)) {
+			if(containsNull) return;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+		}
+		else {
+			int pos = HashUtil.mix(KEY_TO_HASH(o)) & mask;
+			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
+				if(KEY_EQUALS(keys[pos], o)) return;
+				pos = ++pos & mask;
+			}
+			keys[pos] = o;
+			onNodeAdded(pos);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+	}
+	
 	@Override
 	public boolean addAndMoveToFirst(KEY_TYPE o) {
 		if(KEY_EQUALS_NULL(o)) {
@@ -255,7 +350,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	
 	@Override
 	public boolean moveToFirst(KEY_TYPE o) {
-		if(KEY_EQUALS(FIRST_KEY(), o)) return false;
+		if(isEmpty() || KEY_EQUALS(GET_FIRST_KEY(), o)) return false;
 		if(KEY_EQUALS_NULL(o)) {
 			if(containsNull) {
 				moveToFirstIndex(nullIndex);
@@ -277,7 +372,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	
 	@Override
 	public boolean moveToLast(KEY_TYPE o) {
-		if(KEY_EQUALS(LAST_KEY(), o)) return false;
+		if(isEmpty() || KEY_EQUALS(GET_LAST_KEY(), o)) return false;
 		if(KEY_EQUALS_NULL(o)) {
 			if(containsNull) {
 				moveToLastIndex(nullIndex);
@@ -334,17 +429,16 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	}
 	
 	@Override
-	public KEY_TYPE FIRST_KEY() {
+	public KEY_TYPE GET_FIRST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		return keys[firstIndex];
 	}
 	
 	@Override
-	public KEY_TYPE POLL_FIRST_KEY() {
+	public KEY_TYPE REMOVE_FIRST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		int pos = firstIndex;
-		firstIndex = (int)links[pos];
-		if(0 <= firstIndex) links[firstIndex] |= 0xFFFFFFFF00000000L;
+		onNodeRemoved(pos);
 		KEY_TYPE result = keys[pos];
 		size--;
 		if(KEY_EQUALS_NULL(result)) {
@@ -357,17 +451,16 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	}
 	
 	@Override
-	public KEY_TYPE LAST_KEY() {
+	public KEY_TYPE GET_LAST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		return keys[lastIndex];
 	}
 	
 	@Override
-	public KEY_TYPE POLL_LAST_KEY() {
+	public KEY_TYPE REMOVE_LAST_KEY() {
 		if(size == 0) throw new NoSuchElementException();
 		int pos = lastIndex;
-		lastIndex = (int)(links[pos] >>> 32);
-		if(0 <= lastIndex) links[lastIndex] |= 0xFFFFFFFFL;
+		onNodeRemoved(pos);
 		KEY_TYPE result = keys[pos];
 		size--;
 		if(KEY_EQUALS_NULL(result)) {
@@ -379,6 +472,41 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		return result;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
+		if(a == null || a.length < size()) a = new KEY_TYPE[size()];
+		for(int i = 0, index = firstIndex;index != -1;i++,index = (int)links[index]) {
+			a[i] = keys[index];
+		}
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
+		return a;
+	}
+	
+#endif
+	@Override
+	@Deprecated
+	public Object[] toArray() {
+		if(isEmpty()) return ObjectArrays.EMPTY_ARRAY;
+		Object[] obj = new Object[size()];
+		for(int i = 0, index = firstIndex;index != -1;i++,index = (int)links[index]) {
+			obj[i] = KEY_TO_OBJ(keys[index]);
+		}
+		return obj;
+	}
+	
+	@Override
+	@Primitive
+	public <E> E[] toArray(E[] a) {
+		if(a == null) a = (E[])new Object[size()];
+		else if(a.length < size()) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size());
+		for(int i = 0, index = firstIndex;index != -1;i++,index = (int)links[index]) {
+			a[i] = (E)KEY_TO_OBJ(keys[index]);
+		}
+		if (a.length > size) a[size] = null;
+		return a;
+	}
+	
 	@Override
 	public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
 		Objects.requireNonNull(action);
@@ -389,6 +517,17 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		}
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		int count = 0;
+		int index = firstIndex;
+		while(index != -1) {
+			action.accept(count++, keys[index]);
+			index = (int)links[index];
+		}
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -404,7 +543,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) return true;
+			if(filter.test(keys[index])) return true;
 			index = (int)links[index];
 		}
 		return false;
@@ -415,7 +554,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) return false;
+			if(filter.test(keys[index])) return false;
 			index = (int)links[index];
 		}
 		return true;
@@ -426,7 +565,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(!filter.TEST_VALUE(keys[index])) return false;
+			if(!filter.test(keys[index])) return false;
 			index = (int)links[index];
 		}
 		return true;
@@ -460,7 +599,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -473,18 +612,18 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 			else state = operator.APPLY_VALUE(state, keys[index]);
 			index = (int)links[index];
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) return keys[index];
+			if(filter.test(keys[index])) return OPTIONAL.GET_OPTIONAL(keys[index]);
 			index = (int)links[index];
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 	@Override
@@ -493,7 +632,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		int result = 0;
 		int index = firstIndex;
 		while(index != -1) {
-			if(filter.TEST_VALUE(keys[index])) result++;
+			if(filter.test(keys[index])) result++;
 			index = (int)links[index];
 		}
 		return result;
@@ -601,7 +740,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	@Override
 	public void clearAndTrim(int size) {
 		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-		if(request >= size) {
+		if(request >= nullIndex) {
 			clear();
 			return;
 		}
@@ -617,7 +756,12 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	
 	@Override
 	public LIST_ITERATOR KEY_GENERIC_TYPE iterator() {
-		return new SetIterator();
+		return new SetIterator(true);
+	}
+	
+	@Override
+	public LIST_ITERATOR KEY_GENERIC_TYPE reverseIterator() {
+		return new SetIterator(false);
 	}
 	
 	@Override
@@ -642,16 +786,20 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	}
 	
 	private class SetIterator implements LIST_ITERATOR KEY_GENERIC_TYPE {
+		boolean forward;
 		int previous = -1;
 		int next = -1;
 		int current = -1;
-		int index = 0;
+		int index = -1;
 		
-		SetIterator() {
-			next = firstIndex;
+		SetIterator(boolean start) {
+			this.forward = start;
+			if(start) next = firstIndex;
+			else previous = lastIndex;
 		}
 		
 		SetIterator(KEY_TYPE from) {
+			this.forward = true;
 			if(KEY_EQUALS_NULL(from)) {
 				if(containsNull) {
 					next = (int) links[nullIndex];
@@ -678,26 +826,62 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 			}
 		}
 		
+		@Override
+		public int skip(int amount) {
+			int result = forward ? moveForward(amount) : moveBackwards(amount);
+			if(index >= 0) index+=result;
+			return result;
+		}
+		
+		@Override
+		public int back(int amount) {
+			int result = forward ? moveBackwards(amount) : moveForward(amount);
+			if(index >= 0) index-=result;
+			return result;
+		}
+		
+		private int moveForward(int amount) {
+			int result = 0;
+			while(next != -1 && result != amount) {
+				current = previous = next;
+				next = (int)(links[current]);
+				result++;
+			}
+			return result;
+		}
+		
+		private int moveBackwards(int amount) {
+			int result = 0;
+			while(previous != -1 && result != amount) {
+				current = next = previous;
+				previous = (int)(links[current] >> 32);
+				result++;
+			}
+			return result;
+		}
+		
 		@Override
 		public boolean hasNext() {
-			return next != -1;
+			return (forward ? next : previous) != -1;
 		}
 
 		@Override
 		public boolean hasPrevious() {
-			return previous != -1;
+			return (forward ? previous : next) != -1;
 		}
 		
 		@Override
 		public int nextIndex() {
 			ensureIndexKnown();
-			return index;
+			if(forward) return index;
+			return size - index;
 		}
 		
 		@Override
 		public int previousIndex() {
 			ensureIndexKnown();
-			return index - 1;
+			if(forward) return index-1;
+			return (size - index)-1;
 		}
 		
 		@Override
@@ -746,9 +930,8 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		@Override
 		public KEY_TYPE PREVIOUS() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			current = previous;
-			previous = (int)(links[current] >> 32);
-			next = current;
+			if(forward) moveBackwards();
+			else moveForwards();
 			if(index >= 0) index--;
 			return keys[current];
 		}
@@ -756,13 +939,22 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		@Override
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
-			current = next;
-			next = (int)(links[current]);
-			previous = current;
+			if(forward) moveForwards();
+			else moveBackwards();
 			if(index >= 0) index++;
 			return keys[current];
 		}
 		
+		private void moveBackwards() {
+			current = next = previous;
+			previous = (int)(links[current] >> 32);
+		}
+		
+		private void moveForwards() {
+			current = previous = next;
+			next = (int)(links[current]);
+		}
+		
 		private void ensureIndexKnown() {
 			if(index == -1) {
 				if(previous == -1) {

src/builder/resources/speiger/assets/collections/templates/sets/NavigableSet.template

@@ -3,9 +3,13 @@ package speiger.src.collections.PACKAGE.sets;
 import java.util.NavigableSet;
 
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
-import speiger.src.collections.PACKAGE.utils.SETS;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
+#if SETS_FEATURE
+import speiger.src.collections.PACKAGE.utils.SETS;
+#endif
 
 /**
  * A Type Specific Navigable Set interface with a couple helper methods
@@ -119,7 +123,7 @@ public interface NAVIGABLE_SET KEY_GENERIC_TYPE extends NavigableSet<CLASS_TYPE>
 	@Override
 	public NAVIGABLE_SET KEY_GENERIC_TYPE copy();
 	
-#if !TYPE_BOOLEAN
+#if SETS_FEATURE
 	/**
 	 * Creates a Wrapped NavigableSet that is Synchronized
 	 * @return a new NavigableSet that is synchronized
@@ -143,6 +147,7 @@ public interface NAVIGABLE_SET KEY_GENERIC_TYPE extends NavigableSet<CLASS_TYPE>
 	public default NAVIGABLE_SET KEY_GENERIC_TYPE unmodifiable() { return SETS.unmodifiable(this); }
 	
 #endif
+#if SPLIT_ITERATOR_FEATURE
 	/**
 	 * A Type Specific Type Splititerator to reduce boxing/unboxing
 	 * @return type specific splititerator
@@ -150,6 +155,7 @@ public interface NAVIGABLE_SET KEY_GENERIC_TYPE extends NavigableSet<CLASS_TYPE>
 	@Override
 	default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
 	
+#endif
 #if !TYPE_OBJECT
 	@Override
 	@Deprecated

src/builder/resources/speiger/assets/collections/templates/sets/OpenCustomHashSet.template

@@ -6,23 +6,40 @@ import java.util.ConcurrentModificationException;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
 #if TYPE_OBJECT
 import java.util.function.Consumer;
 import java.util.function.BiFunction;
 #endif
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
-import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
-import speiger.src.collections.PACKAGE.lists.LIST;
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.utils.STRATEGY;
+import speiger.src.collections.objects.utils.ObjectArrays;
 
 import speiger.src.collections.utils.HashUtil;
 import speiger.src.collections.utils.ITrimmable;
@@ -246,6 +263,42 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		while(iterator.hasNext()) add(iterator.NEXT());
 	}
 	
+#endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a CustomHashSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, CUSTOM_HASH_SET<T>, CUSTOM_HASH_SET<T>> toSet(STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return Collector.of(() -> new CUSTOM_HASH_SET<>(strategy), CUSTOM_HASH_SET::add, CUSTOM_HASH_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a CustomHashSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> CUSTOM_HASH_SET KEY_GENERIC_TYPE toSet(Stream<T> stream, STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return stream.collect(() -> new CUSTOM_HASH_SET<>(strategy), CUSTOM_HASH_SET::add, CUSTOM_HASH_SET::merge);
+	}
+	
+	private CUSTOM_HASH_SET<T> merge(CUSTOM_HASH_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a CustomHashSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static CUSTOM_HASH_SET toSet(JAVA_STREAM stream, STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return stream.collect(() -> new CUSTOM_HASH_SET(strategy), CUSTOM_HASH_SET::add, CUSTOM_HASH_SET::addAll);
+	}
+	
+#endif
 #endif
 	/**
 	 * Helper getter function to get the current strategy
@@ -373,10 +426,10 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 #endif
 	@Override
 	public boolean trim(int size) {
-		int newSize = HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor));
-		if(newSize >= nullIndex || size >= Math.min((int)Math.ceil(newSize * loadFactor), newSize - 1)) return false;
+		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
+		if(request >= nullIndex || this.size >= Math.min((int)Math.ceil(request * loadFactor), request - 1)) return false;
 		try {
-			rehash(newSize);
+			rehash(request);
 		}
 		catch(OutOfMemoryError e) { return false; }
 		return true;
@@ -385,7 +438,7 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 	@Override
 	public void clearAndTrim(int size) {
 		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-		if(request >= size) {
+		if(request >= nullIndex) {
 			clear();
 			return;
 		}
@@ -475,6 +528,44 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		return new SetIterator();
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
+		if(a == null || a.length < size()) a = new KEY_TYPE[size()];
+		if(containsNull) a[0] = EMPTY_KEY_VALUE;
+		for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) a[index++] = keys[i];
+		}
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
+		return a;
+	}
+	
+#endif
+	@Override
+	@Deprecated
+	public Object[] toArray() {
+		if(isEmpty()) return ObjectArrays.EMPTY_ARRAY;
+		Object[] obj = new Object[size()];
+		if(containsNull) obj[0] = KEY_TO_OBJ(EMPTY_KEY_VALUE);
+		for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) obj[index++] = KEY_TO_OBJ(keys[i]);
+		}
+		return obj;
+	}
+	
+	@Override
+	@Primitive
+	public <E> E[] toArray(E[] a) {
+		if(a == null) a = (E[])new Object[size()];
+		else if(a.length < size()) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size());
+		if(containsNull) a[0] = (E)KEY_TO_OBJ(EMPTY_KEY_VALUE);
+		for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) a[index++] = (E)KEY_TO_OBJ(keys[i]);
+		}
+		if (a.length > size) a[size] = null;
+		return a;
+	}
+	
 	@Override
 	public CUSTOM_HASH_SET KEY_GENERIC_TYPE copy() {
 		CUSTOM_HASH_SET KEY_GENERIC_TYPE set = new CUSTOM_HASH_SETBRACES(0, loadFactor, strategy);
@@ -503,6 +594,7 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 	
 	@Override
 	public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
 		if(size() <= 0) return;
 		if(containsNull) action.accept(keys[nullIndex]);
 		for(int i = nullIndex-1;i>=0;i--) {
@@ -510,6 +602,16 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		}
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		if(size() <= 0) return;
+		if(containsNull) action.accept(0, keys[nullIndex]);
+		for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(index++, keys[i]);
+		}
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -524,9 +626,9 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		if(size() <= 0) return false;
-		if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return true;
+		if(containsNull && filter.test(keys[nullIndex])) return true;
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.TEST_VALUE(keys[i])) return true;
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(keys[i])) return true;
 		}
 		return false;
 	}
@@ -535,9 +637,9 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		if(size() <= 0) return true;
-		if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return false;
+		if(containsNull && filter.test(keys[nullIndex])) return false;
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.TEST_VALUE(keys[i])) return false;
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(keys[i])) return false;
 		}
 		return true;
 	}
@@ -546,9 +648,9 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		if(size() <= 0) return true;
-		if(containsNull && !filter.TEST_VALUE(keys[nullIndex])) return false;
+		if(containsNull && !filter.test(keys[nullIndex])) return false;
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && !filter.TEST_VALUE(keys[i])) return false;
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && !filter.test(keys[i])) return false;
 		}
 		return true;
 	}
@@ -581,7 +683,7 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -589,7 +691,7 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 			state = keys[nullIndex];
 			empty = false;
 		}
-		for(int i = 0;i<size;i++) {
+		for(int i = nullIndex-1;i>=0;i--) {
 			if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
 			if(empty) {
 				empty = false;
@@ -598,18 +700,18 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 			}
 			state = operator.APPLY_VALUE(state, keys[i]);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
-		if(size() <= 0) return EMPTY_VALUE;
-		if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return keys[nullIndex];
+		if(size() <= 0) return OPTIONAL.empty();
+		if(containsNull && filter.test(keys[nullIndex])) return OPTIONAL.GET_OPTIONAL(keys[nullIndex]);
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.TEST_VALUE(keys[i])) return keys[i];
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(keys[i])) return OPTIONAL.GET_OPTIONAL(keys[i]);
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 	@Override
@@ -617,9 +719,9 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		Objects.requireNonNull(filter);
 		if(size() <= 0) return 0;
 		int result = 0;
-		if(containsNull && filter.TEST_VALUE(keys[nullIndex])) result++;
+		if(containsNull && filter.test(keys[nullIndex])) result++;
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.TEST_VALUE(keys[i])) result++;
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && filter.test(keys[i])) result++;
 		}
 		return result;
 	}
@@ -630,7 +732,8 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		int lastReturned = -1;
 		int nextIndex = Integer.MIN_VALUE;
 		boolean returnNull = containsNull;
-		LIST KEY_GENERIC_TYPE wrapped = null;
+		KEY_TYPE[] wrapped = null;
+		int wrappedIndex = 0;
 		
 		@Override
 		public boolean hasNext() {
@@ -642,7 +745,7 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 				else {
 					while(true) {
 						if(--pos < 0) {
-							if(wrapped == null || wrapped.size() <= -pos - 1) break;
+							if(wrapped == null || wrappedIndex <= -pos - 1) break;
 							nextIndex = -pos - 1;
 							break;
 						}
@@ -662,7 +765,7 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
-				KEY_TYPE value = wrapped.GET_KEY(nextIndex);
+				KEY_TYPE value = wrapped[nextIndex];
 				nextIndex = Integer.MIN_VALUE;
 				return value;
 			}
@@ -680,7 +783,7 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 			}
 			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				CUSTOM_HASH_SET.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				CUSTOM_HASH_SET.this.remove(wrapped[-returnedPos - 1]);
 				lastReturned = -1;
 				return;
 			}
@@ -702,12 +805,19 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 					if(last <= startPos ? (last >= slot || slot > startPos) : (last >= slot && slot > startPos)) break;
 					startPos = ++startPos & mask;
 				}
-				if(startPos < last) {
-					if(wrapped == null) wrapped = new ARRAY_LISTBRACES(2);
-					wrapped.add(keys[startPos]);
-				}
+				if(startPos < last) addWrapper(keys[startPos]);
 				keys[last] = current;
 			}
 		}
+		
+		private void addWrapper(KEY_TYPE value) {
+			if(wrapped == null) wrapped = NEW_KEY_ARRAY(2);
+			else if(wrappedIndex >= wrapped.length) {
+				KEY_TYPE[] newArray = NEW_KEY_ARRAY(wrapped.length * 2);
+				System.arraycopy(wrapped, 0, newArray, 0, wrapped.length);
+				wrapped = newArray;
+			}
+			wrapped[wrappedIndex++] = value;
+		}
 	}
 }

src/builder/resources/speiger/assets/collections/templates/sets/OpenHashSet.template

@@ -6,22 +6,40 @@ import java.util.ConcurrentModificationException;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
 #if TYPE_OBJECT
 import java.util.function.Consumer;
 import java.util.function.BiFunction;
 #endif
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
-import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
-import speiger.src.collections.PACKAGE.lists.LIST;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+import speiger.src.collections.objects.utils.ObjectArrays;
+
 import speiger.src.collections.utils.HashUtil;
 import speiger.src.collections.utils.ITrimmable;
 import speiger.src.collections.utils.SanityChecks;
@@ -212,6 +230,42 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		while(iterator.hasNext()) add(iterator.NEXT());
 	}
 	
+#endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a HashSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, HASH_SET<T>, HASH_SET<T>> toSet() {
+		return Collector.of(HASH_SET::new, HASH_SET::add, HASH_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a HashSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> HASH_SET KEY_GENERIC_TYPE toSet(Stream<T> stream) {
+		return stream.collect(HASH_SET::new, HASH_SET::add, HASH_SET::merge);
+	}
+	
+	private HASH_SET<T> merge(HASH_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a HashSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static HASH_SET toSet(JAVA_STREAM stream) {
+		return stream.collect(HASH_SET::new, HASH_SET::add, HASH_SET::addAll);
+	}
+	
+#endif
 #endif
 	@Override
 	public boolean add(KEY_TYPE o) {
@@ -340,10 +394,10 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 #endif
 	@Override
 	public boolean trim(int size) {
-		int newSize = HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor));
-		if(newSize >= nullIndex || size >= Math.min((int)Math.ceil(newSize * loadFactor), newSize - 1)) return false;
+		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
+		if(request >= nullIndex || this.size >= Math.min((int)Math.ceil(request * loadFactor), request - 1)) return false;
 		try {
-			rehash(newSize);
+			rehash(request);
 		}
 		catch(OutOfMemoryError e) { return false; }
 		return true;
@@ -352,7 +406,7 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 	@Override
 	public void clearAndTrim(int size) {
 		int request = Math.max(minCapacity, HashUtil.nextPowerOfTwo((int)Math.ceil(size / loadFactor)));
-		if(request >= size) {
+		if(request >= nullIndex) {
 			clear();
 			return;
 		}
@@ -364,6 +418,44 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		containsNull = false;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
+		if(a == null || a.length < size()) a = new KEY_TYPE[size()];
+		if(containsNull) a[0] = EMPTY_KEY_VALUE;
+		for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+			if(KEY_EQUALS_NOT_NULL(keys[i])) a[index++] = keys[i];
+		}
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
+		return a;
+	}
+	
+#endif
+	@Override
+	@Deprecated
+	public Object[] toArray() {
+		if(isEmpty()) return ObjectArrays.EMPTY_ARRAY;
+		Object[] obj = new Object[size()];
+		if(containsNull) obj[0] = KEY_TO_OBJ(EMPTY_KEY_VALUE);
+		for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+			if(KEY_EQUALS_NOT_NULL(keys[i])) obj[index++] = KEY_TO_OBJ(keys[i]);
+		}
+		return obj;
+	}
+	
+	@Override
+	@Primitive
+	public <E> E[] toArray(E[] a) {
+		if(a == null) a = (E[])new Object[size()];
+		else if(a.length < size()) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size());
+		if(containsNull) a[0] = (E)KEY_TO_OBJ(EMPTY_KEY_VALUE);
+		for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+			if(KEY_EQUALS_NOT_NULL(keys[i])) a[index++] = (E)KEY_TO_OBJ(keys[i]);
+		}
+		if (a.length > size) a[size] = null;
+		return a;
+	}
+	
 	@Override
 	public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
 		if(size() <= 0) return;
@@ -373,6 +465,16 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		}
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		if(size() <= 0) return;
+		if(containsNull) action.accept(0, keys[nullIndex]);
+		for(int i = nullIndex-1, index = containsNull ? 1 : 0;i>=0;i--) {
+			if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(index++, keys[i]);
+		}
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -387,9 +489,9 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		if(size() <= 0) return false;
-		if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return true;
+		if(containsNull && filter.test(keys[nullIndex])) return true;
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.TEST_VALUE(keys[i])) return true;
+			if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(keys[i])) return true;
 		}
 		return false;
 	}
@@ -398,9 +500,9 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		if(size() <= 0) return true;
-		if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return false;
+		if(containsNull && filter.test(keys[nullIndex])) return false;
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.TEST_VALUE(keys[i])) return false;
+			if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(keys[i])) return false;
 		}
 		return true;
 	}
@@ -409,9 +511,9 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		if(size() <= 0) return true;
-		if(containsNull && !filter.TEST_VALUE(keys[nullIndex])) return false;
+		if(containsNull && !filter.test(keys[nullIndex])) return false;
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(KEY_EQUALS_NOT_NULL(keys[i]) && !filter.TEST_VALUE(keys[i])) return false;
+			if(KEY_EQUALS_NOT_NULL(keys[i]) && !filter.test(keys[i])) return false;
 		}
 		return true;
 	}
@@ -444,7 +546,7 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -452,7 +554,7 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 			state = keys[nullIndex];
 			empty = false;
 		}
-		for(int i = 0;i<size;i++) {
+		for(int i = nullIndex-1;i>=0;i--) {
 			if(KEY_EQUALS_NULL(keys[i])) continue;
 			if(empty) {
 				empty = false;
@@ -461,18 +563,18 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 			}
 			state = operator.APPLY_VALUE(state, keys[i]);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
-		if(size() <= 0) return EMPTY_VALUE;
-		if(containsNull && filter.TEST_VALUE(keys[nullIndex])) return keys[nullIndex];
+		if(size() <= 0) return OPTIONAL.empty();
+		if(containsNull && filter.test(keys[nullIndex])) return OPTIONAL.GET_OPTIONAL(keys[nullIndex]);
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.TEST_VALUE(keys[i])) return keys[i];
+			if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(keys[i])) return OPTIONAL.GET_OPTIONAL(keys[i]);
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 	@Override
@@ -480,9 +582,9 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		Objects.requireNonNull(filter);
 		if(size() <= 0) return 0;
 		int result = 0;
-		if(containsNull && filter.TEST_VALUE(keys[nullIndex])) result++;
+		if(containsNull && filter.test(keys[nullIndex])) result++;
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.TEST_VALUE(keys[i])) result++;
+			if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.test(keys[i])) result++;
 		}
 		return result;
 	}
@@ -597,7 +699,8 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		int lastReturned = -1;
 		int nextIndex = Integer.MIN_VALUE;
 		boolean returnNull = containsNull;
-		LIST KEY_GENERIC_TYPE wrapped = null;
+		KEY_TYPE[] wrapped = null;
+		int wrappedIndex = 0;
 		
 		@Override
 		public boolean hasNext() {
@@ -610,7 +713,7 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 				{
 					while(true) {
 						if(--pos < 0) {
-							if(wrapped == null || wrapped.size() <= -pos - 1) break;
+							if(wrapped == null || wrappedIndex <= -pos - 1) break;
 							nextIndex = -pos - 1;
 							break;
 						}
@@ -630,7 +733,7 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
-				KEY_TYPE value = wrapped.GET_KEY(nextIndex);
+				KEY_TYPE value = wrapped[nextIndex];
 				nextIndex = Integer.MIN_VALUE;
 				return value;
 			}
@@ -648,7 +751,7 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 			}
 			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				HASH_SET.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				HASH_SET.this.remove(wrapped[-returnedPos - 1]);
 				lastReturned = -1;
 				return;
 			}
@@ -670,12 +773,19 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 					if(last <= startPos ? (last >= slot || slot > startPos) : (last >= slot && slot > startPos)) break;
 					startPos = ++startPos & mask;
 				}
-				if(startPos < last) {
-					if(wrapped == null) wrapped = new ARRAY_LISTBRACES(2);
-					wrapped.add(keys[startPos]);
-				}
+				if(startPos < last) addWrapper(keys[startPos]);
 				keys[last] = current;
 			}
 		}
+		
+		private void addWrapper(KEY_TYPE value) {
+			if(wrapped == null) wrapped = NEW_KEY_ARRAY(2);
+			else if(wrappedIndex >= wrapped.length) {
+				KEY_TYPE[] newArray = NEW_KEY_ARRAY(wrapped.length * 2);
+				System.arraycopy(wrapped, 0, newArray, 0, wrapped.length);
+				wrapped = newArray;
+			}
+			wrapped[wrappedIndex++] = value;
+		}
 	}
 }

src/builder/resources/speiger/assets/collections/templates/sets/OrderedSet.template

@@ -1,9 +1,19 @@
 package speiger.src.collections.PACKAGE.sets;
 
+#if JAVA_VERSION>=21
+import java.util.SequencedSet;
+
+#endif
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
+import speiger.src.collections.PACKAGE.collections.ORDERED_COLLECTION;
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
-import speiger.src.collections.PACKAGE.utils.SETS;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
+import speiger.src.collections.PACKAGE.sets.ABSTRACT_SET.REVERSED_ORDERED_SET;
+#if SETS_FEATURE
+import speiger.src.collections.PACKAGE.utils.SETS;
+#endif
 
 /**
  * A Special Set Interface giving Access to some really usefull functions
@@ -13,7 +23,11 @@ import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
  * 
  * @Type(T)
  */
-public interface ORDERED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE
+#if JAVA_VERSION>=21
+public interface ORDERED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE, ORDERED_COLLECTION KEY_GENERIC_TYPE, SequencedSet<CLASS_TYPE>
+#else
+public interface ORDERED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE, ORDERED_COLLECTION KEY_GENERIC_TYPE
+#endif
 {
 	/**
 	 * A customized add method that allows you to insert into the first index.
@@ -50,6 +64,7 @@ public interface ORDERED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE
 	
 	@Override
 	public BI_ITERATOR KEY_GENERIC_TYPE iterator();
+	public BI_ITERATOR KEY_GENERIC_TYPE reverseIterator();
 	
 	/**
 	 * A type Specific Iterator starting from a given key
@@ -59,6 +74,7 @@ public interface ORDERED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE
 	 */
 	public BI_ITERATOR KEY_GENERIC_TYPE iterator(KEY_TYPE fromElement);
 	
+#if SPLIT_ITERATOR_FEATURE
 	/**
 	 * A Type Specific Type Splititerator to reduce boxing/unboxing
 	 * @return type specific splititerator
@@ -66,28 +82,82 @@ public interface ORDERED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE
 	@Override
 	default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
 	
+#endif
 	/**
 	 * A method to get the first element in the set
 	 * @return first element in the set
 	 */
-	public KEY_TYPE FIRST_KEY();
+	public KEY_TYPE GET_FIRST_KEY();
 	/**
 	 * A method to get and remove the first element in the set
 	 * @return first element in the set
 	 */
-	public KEY_TYPE POLL_FIRST_KEY();
+	public KEY_TYPE REMOVE_FIRST_KEY();
 	/**
 	 * A method to get the last element in the set
 	 * @return last element in the set
 	 */
-	public KEY_TYPE LAST_KEY();
+	public KEY_TYPE GET_LAST_KEY();
 	/**
 	 * A method to get and remove the last element in the set
 	 * @return last element in the set
 	 */
-	public KEY_TYPE POLL_LAST_KEY();
+	public KEY_TYPE REMOVE_LAST_KEY();
 	
-#if !TYPE_BOOLEAN
+#if JAVA_VERSION>=21 && !TYPE_OBJECT
+	/** {@inheritDoc}
+	 * <p>This default implementation delegates to the corresponding type-specific function.
+	 * @deprecated Please use the corresponding type-specific function instead. 
+	 */
+	@Override
+	@Deprecated
+	default void addFirst(CLASS_TYPE e) { addAndMoveToFirst(OBJ_TO_KEY(e)); }
+	
+	/** {@inheritDoc}
+	 * <p>This default implementation delegates to the corresponding type-specific function.
+	 * @deprecated Please use the corresponding type-specific function instead. 
+	 */
+	@Override
+	@Deprecated
+	default void addLast(CLASS_TYPE e) { addAndMoveToLast(OBJ_TO_KEY(e)); }
+	
+	/** {@inheritDoc}
+	 * <p>This default implementation delegates to the corresponding type-specific function.
+	 * @deprecated Please use the corresponding type-specific function instead. 
+	 */
+	@Override
+	@Deprecated
+	default CLASS_TYPE getFirst() { return GET_FIRST_KEY(); }
+	
+	/** {@inheritDoc}
+	 * <p>This default implementation delegates to the corresponding type-specific function.
+	 * @deprecated Please use the corresponding type-specific function instead. 
+	 */
+	@Override
+	@Deprecated
+	default CLASS_TYPE getLast() { return GET_LAST_KEY(); }
+	
+	/** {@inheritDoc}
+	 * <p>This default implementation delegates to the corresponding type-specific function.
+	 * @deprecated Please use the corresponding type-specific function instead. 
+	 */
+	@Override
+	@Deprecated
+	default CLASS_TYPE removeFirst() { return REMOVE_FIRST_KEY(); }
+	
+	/** {@inheritDoc}
+	 * <p>This default implementation delegates to the corresponding type-specific function.
+	 * @deprecated Please use the corresponding type-specific function instead. 
+	 */
+	@Override
+	@Deprecated
+	default CLASS_TYPE removeLast() { return REMOVE_LAST_KEY(); }
+	
+#endif
+	@Java21
+	public default ORDERED_SET KEY_GENERIC_TYPE reversed() { return new REVERSED_ORDERED_SETBRACES(this); }
+
+#if SETS_FEATURE
 	/**
 	 * Creates a Wrapped OrderedSet that is Synchronized
 	 * @return a new OrderedSet that is synchronized

src/builder/resources/speiger/assets/collections/templates/sets/RBTreeSet.template

@@ -2,6 +2,15 @@ package speiger.src.collections.PACKAGE.sets;
 
 import java.util.Collection;
 import java.util.Collections;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
 #if TYPE_OBJECT
 import java.util.Comparator;
 import java.util.function.Consumer;
@@ -10,16 +19,27 @@ import java.util.function.BiFunction;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
+
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+import speiger.src.collections.objects.utils.ObjectArrays;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 #endif
@@ -200,6 +220,42 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		while(iterator.hasNext()) add(iterator.NEXT());
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a RBTreeSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, RB_TREE_SET<T>, RB_TREE_SET<T>> toSet() {
+		return Collector.of(RB_TREE_SET::new, RB_TREE_SET::add, RB_TREE_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a RBTreeSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> RB_TREE_SET KEY_GENERIC_TYPE toSet(Stream<T> stream) {
+		return stream.collect(RB_TREE_SET::new, RB_TREE_SET::add, RB_TREE_SET::merge);
+	}
+	
+	private RB_TREE_SET<T> merge(RB_TREE_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a RBTreeSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static RB_TREE_SET toSet(JAVA_STREAM stream) {
+		return stream.collect(RB_TREE_SET::new, RB_TREE_SET::add, RB_TREE_SET::addAll);
+	}
+	
+#endif
+#endif
 #if !TYPE_OBJECT
 	@Override
 	public void setDefaultMaxValue(KEY_TYPE value) { defaultMaxNotFound = value; }
@@ -353,6 +409,14 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 	}
 	
+	@Override
+	public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+		Objects.requireNonNull(action);
+		int index = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+			action.accept(index++, entry.key);	
+	}
+	
 	@Override
 	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
@@ -364,7 +428,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
-			if(filter.TEST_VALUE(entry.key)) return true;
+			if(filter.test(entry.key)) return true;
 		}
 		return false;
 	}
@@ -373,7 +437,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
-			if(filter.TEST_VALUE(entry.key)) return false;
+			if(filter.test(entry.key)) return false;
 		}
 		return true;
 	}
@@ -382,7 +446,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
-			if(!filter.TEST_VALUE(entry.key)) return false;
+			if(!filter.test(entry.key)) return false;
 		}
 		return true;
 	}
@@ -411,7 +475,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -423,16 +487,16 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			}
 			state = operator.APPLY_VALUE(state, entry.key);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
-			if(filter.TEST_VALUE(entry.key)) return entry.key;
+			if(filter.test(entry.key)) return OPTIONAL.GET_OPTIONAL(entry.key);
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 	@Override
@@ -440,7 +504,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		Objects.requireNonNull(filter);
 		int result = 0;
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
-			if(filter.TEST_VALUE(entry.key)) result++;
+			if(filter.test(entry.key)) result++;
 		}
 		return result;
 	}
@@ -637,6 +701,44 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		tree = null;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
+		if(a == null || a.length < size()) a = new KEY_TYPE[size()];
+		int index = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			a[index++] = entry.key;
+		}
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
+		return a;
+	}
+	
+#endif
+	@Override
+	@Deprecated
+	public Object[] toArray() {
+		if(isEmpty()) return ObjectArrays.EMPTY_ARRAY;
+		Object[] obj = new Object[size()];
+		int index = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			obj[index++] = KEY_TO_OBJ(entry.key);
+		}
+		return obj;
+	}
+	
+	@Override
+	@Primitive
+	public <E> E[] toArray(E[] a) {
+		if(a == null) a = (E[])new Object[size()];
+		else if(a.length < size()) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size());
+		int index = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			a[index++] = (E)KEY_TO_OBJ(entry.key);
+		}
+		if (a.length > size) a[size] = null;
+		return a;
+	}
+	
 	public RB_TREE_SET KEY_GENERIC_TYPE copy() {
 		RB_TREE_SET KEY_GENERIC_TYPE set = new RB_TREE_SETBRACES();
 		set.size = size;
@@ -949,15 +1051,11 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		@Override
 		public COMPARATOR KEY_GENERIC_TYPE comparator() { return comparator; }
 		
-		public KEY_TYPE getDefaultMaxValue() { return super.getDefaultMinValue(); }
-		
-		public KEY_TYPE getDefaultMinValue() { return super.getDefaultMaxValue(); }
-		
 		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, boolean fromInclusive, KEY_TYPE toElement, boolean toInclusive) {
 			if(!inRange(fromElement, fromInclusive)) throw new IllegalArgumentException("fromElement out of range");
 			if(!inRange(toElement, toInclusive)) throw new IllegalArgumentException("toElement out of range");
-			return new DescendingSubSetBRACES(set, false, fromElement, fromInclusive, false, toElement, toInclusive);
+			return new DescendingSubSetBRACES(set, false, toElement, toInclusive, false, fromElement, fromInclusive);
 		}
 		
 		@Override
@@ -1034,21 +1132,15 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 #if !TYPE_OBJECT
 		@Override
 		public void setDefaultMaxValue(KEY_TYPE value) { set.setDefaultMaxValue(value); }
-		
 		@Override
 		public KEY_TYPE getDefaultMaxValue() { return set.getDefaultMaxValue(); }
-		
 		@Override
 		public void setDefaultMinValue(KEY_TYPE value) { set.setDefaultMinValue(value); }
-		
 		@Override
 		public KEY_TYPE getDefaultMinValue() { return set.getDefaultMinValue(); }
-		
 #else
 		public KEY_TYPE getDefaultMaxValue() { return null; }
-		
 		public KEY_TYPE getDefaultMinValue() { return null; }
-		
 #endif
 		@Override
 		public abstract	BI_ITERATOR KEY_GENERIC_TYPE iterator();
@@ -1263,6 +1355,15 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			}
 		}
 		
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			int index = 0;
+			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
+				action.accept(index++, entry.key);	
+			}
+		}
+		
 		@Override
 		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -1274,7 +1375,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
-				if(filter.TEST_VALUE(entry.key)) return true;
+				if(filter.test(entry.key)) return true;
 			}
 			return false;
 		}
@@ -1283,7 +1384,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
-				if(filter.TEST_VALUE(entry.key)) return false;
+				if(filter.test(entry.key)) return false;
 			}
 			return true;
 		}
@@ -1292,7 +1393,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
-				if(!filter.TEST_VALUE(entry.key)) return false;
+				if(!filter.test(entry.key)) return false;
 			}
 			return true;
 		}
@@ -1321,7 +1422,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		
 #endif
 		@Override
-		public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 			Objects.requireNonNull(operator);
 			KEY_TYPE state = EMPTY_VALUE;
 			boolean empty = true;
@@ -1333,16 +1434,16 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 				}
 				state = operator.APPLY_VALUE(state, entry.key);
 			}
-			return state;
+			return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 		}
 		
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
-				if(filter.TEST_VALUE(entry.key)) return entry.key;
+				if(filter.test(entry.key)) return OPTIONAL.GET_OPTIONAL(entry.key);
 			}
-			return EMPTY_VALUE;
+			return OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1350,7 +1451,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			Objects.requireNonNull(filter);
 			int result = 0;
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
-				if(filter.TEST_VALUE(entry.key)) result++;
+				if(filter.test(entry.key)) result++;
 			}
 			return result;
 		}
@@ -1359,6 +1460,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		{
 			Entry KEY_GENERIC_TYPE lastReturned;
 			Entry KEY_GENERIC_TYPE next;
+			Entry KEY_GENERIC_TYPE previous;
 			boolean forwards = false;
 			boolean unboundForwardFence;
 			boolean unboundBackwardFence;
@@ -1368,6 +1470,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			public AscendingSubSetIterator(Entry KEY_GENERIC_TYPE first, Entry KEY_GENERIC_TYPE forwardFence, Entry KEY_GENERIC_TYPE backwardFence)
 			{
 				next = first;
+				previous = first == null ? null : first.previous();
 				this.forwardFence = forwardFence == null ? EMPTY_KEY_VALUE : forwardFence.key;
 				this.backwardFence = backwardFence == null ? EMPTY_KEY_VALUE : backwardFence.key;
 				unboundForwardFence = forwardFence == null;
@@ -1383,6 +1486,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			public KEY_TYPE NEXT() {
 				if(!hasNext()) throw new NoSuchElementException();
 				lastReturned = next;
+				previous = next;
 				KEY_TYPE result = next.key;
 				next = next.next();
 				forwards = true;
@@ -1391,15 +1495,16 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			
 			@Override
 			public boolean hasPrevious() {
-                return next != null && (unboundBackwardFence || next.key != backwardFence);
+                return previous != null && (unboundBackwardFence || previous.key != backwardFence);
 			}
 			
 			@Override
 			public KEY_TYPE PREVIOUS() {
 				if(!hasPrevious()) throw new NoSuchElementException();
-				lastReturned = next;
-				KEY_TYPE result = next.key;
-				next = next.previous();
+				lastReturned = previous;
+				next = previous;
+				KEY_TYPE result = previous.key;
+				previous = previous.previous();
 				forwards = false;
 				return result;
 			}
@@ -1407,6 +1512,8 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			@Override
 			public void remove() {
 				if(lastReturned == null) throw new IllegalStateException();
+				if(previous == lastReturned) previous = previous.previous();
+				if(next == lastReturned) next = next.next();
 				if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
 				set.removeNode(lastReturned);
 				lastReturned = null;
@@ -1417,6 +1524,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		{
 			Entry KEY_GENERIC_TYPE lastReturned;
 			Entry KEY_GENERIC_TYPE next;
+			Entry KEY_GENERIC_TYPE previous;
 			boolean forwards = false;
 			boolean unboundForwardFence;
 			boolean unboundBackwardFence;
@@ -1426,6 +1534,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			public DescendingSubSetIterator(Entry KEY_GENERIC_TYPE first, Entry KEY_GENERIC_TYPE forwardFence, Entry KEY_GENERIC_TYPE backwardFence)
 			{
 				next = first;
+				previous = first == null ? null : first.next();
 				this.forwardFence = forwardFence == null ? EMPTY_KEY_VALUE : forwardFence.key;
 				this.backwardFence = backwardFence == null ? EMPTY_KEY_VALUE : backwardFence.key;
 				unboundForwardFence = forwardFence == null;
@@ -1441,6 +1550,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			public KEY_TYPE NEXT() {
 				if(!hasNext()) throw new NoSuchElementException();
 				lastReturned = next;
+				previous = next;
 				KEY_TYPE result = next.key;
 				next = next.previous();
 				forwards = false;
@@ -1449,15 +1559,16 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			
 			@Override
 			public boolean hasPrevious() {
-                return next != null && (unboundBackwardFence || next.key != backwardFence);
+                return previous != null && (unboundBackwardFence || previous.key != backwardFence);
 			}
 			
 			@Override
 			public KEY_TYPE PREVIOUS() {
 				if(!hasPrevious()) throw new NoSuchElementException();
-				lastReturned = next;
-				KEY_TYPE result = next.key;
-				next = next.next();
+				lastReturned = previous;
+				next = previous;
+				KEY_TYPE result = previous.key;
+				previous = previous.next();
 				forwards = true;
 				return result;
 			}
@@ -1465,6 +1576,8 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			@Override
 			public void remove() {
 				if(lastReturned == null) throw new IllegalStateException();
+				if(previous == lastReturned) previous = previous.next();
+				if(next == lastReturned) next = next.previous();
 				if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
 				set.removeNode(lastReturned);
 				lastReturned = null;
@@ -1476,11 +1589,13 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	{
 		Entry KEY_GENERIC_TYPE lastReturned;
 		Entry KEY_GENERIC_TYPE next;
+		Entry KEY_GENERIC_TYPE previous;
 		boolean forwards = false;
 		
 		public AscendingSetIterator(Entry KEY_GENERIC_TYPE first)
 		{
 			next = first;
+			previous = first == null ? null : first.previous();
 		}
 		
 		@Override
@@ -1492,6 +1607,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
 			lastReturned = next;
+			previous = next;
 			KEY_TYPE result = next.key;
 			next = next.next();
 			forwards = true;
@@ -1500,15 +1616,16 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		
 		@Override
 		public boolean hasPrevious() {
-            return next != null;
+            return previous != null;
 		}
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			lastReturned = next;
-			KEY_TYPE result = next.key;
-			next = next.previous();
+			lastReturned = previous;
+			next = previous;
+			KEY_TYPE result = previous.key;
+			previous = previous.previous();
 			forwards = false;
 			return result;
 		}
@@ -1516,6 +1633,8 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		@Override
 		public void remove() {
 			if(lastReturned == null) throw new IllegalStateException();
+			if(lastReturned == previous) previous = previous.previous();
+			if(lastReturned == next) next = next.next();
 			if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
 			removeNode(lastReturned);
 			lastReturned = null;
@@ -1526,11 +1645,13 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	{
 		Entry KEY_GENERIC_TYPE lastReturned;
 		Entry KEY_GENERIC_TYPE next;
+		Entry KEY_GENERIC_TYPE previous;
 		boolean forwards = false;
 
 		public DescendingSetIterator(Entry KEY_GENERIC_TYPE first)
 		{
 			next = first;
+			previous = first == null ? null : first.next();
 		}
 		
 		@Override
@@ -1542,6 +1663,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
 			lastReturned = next;
+			previous = next;
 			KEY_TYPE result = next.key;
 			next = next.previous();
 			forwards = false;
@@ -1550,15 +1672,16 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		
 		@Override
 		public boolean hasPrevious() {
-            return next != null;
+            return previous != null;
 		}
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
 			if(!hasPrevious()) throw new NoSuchElementException();
-			lastReturned = next;
-			KEY_TYPE result = next.key;
-			next = next.next();
+			lastReturned = previous;
+			next = previous;
+			KEY_TYPE result = previous.key;
+			previous = previous.next();
 			forwards = true;
 			return result;
 		}
@@ -1566,6 +1689,8 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		@Override
 		public void remove() {
 			if(lastReturned == null) throw new IllegalStateException();
+			if(lastReturned == previous) previous = previous.next();
+			if(lastReturned == next) next = next.previous();
 			if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
 			removeNode(lastReturned);
 			lastReturned = null;

src/builder/resources/speiger/assets/collections/templates/sets/Set.template

@@ -4,11 +4,13 @@ import java.util.Set;
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
-#if !TYPE_BOOLEAN
+import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
+#if SETS_FEATURE
 import speiger.src.collections.PACKAGE.utils.SETS;
 #endif
-import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
 
 
 /**
@@ -64,7 +66,7 @@ public interface SET KEY_GENERIC_TYPE extends Set<CLASS_TYPE>, COLLECTION KEY_GE
 	public KEY_TYPE addOrGet(KEY_TYPE o);
 	
 #endif
-#if !TYPE_BOOLEAN
+#if SETS_FEATURE
 	/**
 	 * Creates a Wrapped Set that is Synchronized
 	 * @return a new Set that is synchronized
@@ -88,10 +90,12 @@ public interface SET KEY_GENERIC_TYPE extends Set<CLASS_TYPE>, COLLECTION KEY_GE
 	public default SET KEY_GENERIC_TYPE unmodifiable() { return SETS.unmodifiable(this); }
 	
 #endif
+#if SPLIT_ITERATOR_FEATURE
 	/**
 	 * A Type Specific Type Splititerator to reduce boxing/unboxing
 	 * @return type specific splititerator
 	 */
 	@Override
 	default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
+#endif
 }

src/builder/resources/speiger/assets/collections/templates/sets/SortedSet.template

@@ -3,14 +3,20 @@ package speiger.src.collections.PACKAGE.sets;
 import java.util.SortedSet;
 
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
+#endif
 #if TYPE_OBJECT
 import java.util.Comparator;
 #else
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
+#if SETS_FEATURE
 import speiger.src.collections.PACKAGE.utils.SETS;
+#endif
+#if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+#endif
 
 /**
  * A Type Specific SortedSet implementation to reduce boxing/unboxing
@@ -41,7 +47,7 @@ public interface SORTED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE, Sorte
 	 */
 	public BI_ITERATOR KEY_GENERIC_TYPE iterator(KEY_TYPE fromElement);
 	
-#if !TYPE_BOOLEAN
+#if SETS_FEATURE
 	/**
 	 * Creates a Wrapped SortedSet that is Synchronized
 	 * @return a new SortedSet that is synchronized
@@ -65,6 +71,7 @@ public interface SORTED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE, Sorte
 	public default SORTED_SET KEY_GENERIC_TYPE unmodifiable() { return SETS.unmodifiable(this); }
 	
 #endif
+#if SPLIT_ITERATOR_FEATURE
 	/**
 	 * A Type Specific Type Splititerator to reduce boxing/unboxing
 	 * @return type specific splititerator
@@ -72,6 +79,7 @@ public interface SORTED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE, Sorte
 	@Override
 	default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
 	
+#endif
 #if !TYPE_OBJECT
 	/**
 	 * A Type Specific SubSet method to reduce boxing/unboxing

src/builder/resources/speiger/assets/collections/templates/utils/Arrays.template

@@ -1,19 +1,23 @@
 package speiger.src.collections.PACKAGE.utils;
 
 import java.util.Arrays;
-import java.util.Random;
+#if JAVA_VERSION>=17
+import java.util.random.RANDOM;
+#else
+import java.util.RANDOM;
+#endif
 import java.util.concurrent.RecursiveAction;
 #if !TYPE_OBJECT
 
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #else
 import java.util.Comparator;
+import java.util.function.IntFunction;
 
 #endif
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
-import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
-import speiger.src.collections.PACKAGE.utils.ITERATORS;
 import speiger.src.collections.utils.SanityChecks;
+import speiger.src.collections.utils.Swapper;
 
 /**
  * A Helper class for Arrays
@@ -132,10 +136,41 @@ public class ARRAYS
 	 * @return array with all requested elements of the iterator
 	 */
 	public static GENERIC_KEY_BRACES KEY_TYPE[] pour(ITERATOR KEY_GENERIC_TYPE iter, int max) {
-		ARRAY_LIST KEY_GENERIC_TYPE list = new ARRAY_LISTBRACES();
+		COLLECTIONS.CollectionWrapper KEY_GENERIC_TYPE list = COLLECTIONS.wrapper();
 		ITERATORS.pour(iter, list, max);
 		return list.TO_ARRAY(NEW_KEY_ARRAY(list.size()));
 	}
+	
+#if TYPE_OBJECT
+	/**
+	 * A Helper function that pours all elements of a iterator into a Array
+	 * @param iter the elements that should be gathered.
+	 * @ArrayType(T)
+	 * @ArrayType(E)
+	 * @param action that is creating the Array to be poured into
+	 * @return array with all elements of the iterator
+	 */
+	public static <T, E> E[] pour(ITERATOR KEY_GENERIC_TYPE iter, IntFunction<E[]> action) {
+		return pour(iter, Integer.MAX_VALUE, action);
+	}
+	
+	/**
+	 * A Helper function that pours all elements of a iterator into a Array
+	 * @param iter the elements that should be gathered.
+	 * @param max how many elements should be added
+	 * @param action that is creating the Array to be poured into
+	 * @ArrayType(T)
+	 * @ArrayType(E)
+	 * @return array with all requested elements of the iterator
+	 */
+	public static <T, E> E[] pour(ITERATOR KEY_GENERIC_TYPE iter, int max, IntFunction<E[]> action) {
+		COLLECTIONS.CollectionWrapper KEY_GENERIC_TYPE list = COLLECTIONS.wrapper();
+		ITERATORS.pour(iter, list, max);
+		return list.TO_ARRAY(action.apply(list.size()));
+	}
+	
+#endif
+	
 	/**
 	 * Method to validate if the current value is the lowest value in the heap
 	 * @param data the current heap.
@@ -262,7 +297,7 @@ public class ARRAYS
 	 * @ArrayType(T)
 	 * @return the provided sorted array
 	 */
-	public static GENERIC_KEY_BRACES KEY_TYPE[] shuffle(KEY_TYPE[] array, Random random) {
+	public static GENERIC_KEY_BRACES KEY_TYPE[] shuffle(KEY_TYPE[] array, RANDOM random) {
 		for(int i = array.length-1; i>=0;i--) {
 			int p = random.nextInt(i + 1);
 			KEY_TYPE t = array[i];
@@ -280,7 +315,7 @@ public class ARRAYS
 	 * @ArrayType(T)
 	 * @return the provided sorted array
 	 */
-	public static GENERIC_KEY_BRACES KEY_TYPE[] shuffle(KEY_TYPE[] array, int length, Random random) {
+	public static GENERIC_KEY_BRACES KEY_TYPE[] shuffle(KEY_TYPE[] array, int length, RANDOM random) {
 		return shuffle(array, 0, length, random);
 	}
 	
@@ -293,7 +328,7 @@ public class ARRAYS
 	 * @ArrayType(T)
 	 * @return the provided sorted array
 	 */
-	public static GENERIC_KEY_BRACES KEY_TYPE[] shuffle(KEY_TYPE[] array, int offset, int length, Random random) {
+	public static GENERIC_KEY_BRACES KEY_TYPE[] shuffle(KEY_TYPE[] array, int offset, int length, RANDOM random) {
 		for(int i = length-1; i>=0;i--) {
 			int p = offset + random.nextInt(i + 1);
 			KEY_TYPE t = array[offset+i];
@@ -303,6 +338,69 @@ public class ARRAYS
 		return array;
 	}
 	
+	/**
+	 * Simple Shuffle method for Arrays.
+	 * With a Callback for indirect shuffling
+	 * @param array the elements that should be shuffled
+	 * @param swapper the callback on the swaps
+	 * @ArrayType(T)
+	 * @note This uses the SanityChecks#getRandom
+	 * @return the provided sorted array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectShuffle(KEY_TYPE[] array, Swapper swapper) {
+		return indirectShuffle(array, SanityChecks.getRandom(), swapper);
+	}
+	
+	/**
+	 * Simple Shuffle method for Arrays.
+	 * With a Callback for indirect shuffling
+	 * @param array the elements that should be shuffled
+	 * @param random the Random Number Generator that should be used for the shuffling
+	 * @param swapper the callback on the swaps
+	 * @ArrayType(T)
+	 * @return the provided sorted array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectShuffle(KEY_TYPE[] array, RANDOM random, Swapper swapper) {
+		return indirectShuffle(array, 0, array.length, random, swapper);
+	}
+	
+	/**
+	 * Simple Shuffle method for Arrays.
+	 * With a Callback for indirect shuffling
+	 * @param array the elements that should be shuffled
+	 * @param length the length of the array
+	 * @param random the Random Number Generator that should be used for the shuffling
+	 * @param swapper the callback on the swaps
+	 * @ArrayType(T)
+	 * @return the provided sorted array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectShuffle(KEY_TYPE[] array, int length, RANDOM random, Swapper swapper) {
+		return indirectShuffle(array, 0, length, random, swapper);
+	}
+	
+	/**
+	 * Simple Shuffle method for Arrays.
+	 * With a Callback for indirect shuffling
+	 * @param array the elements that should be shuffled
+	 * @param offset the start array
+	 * @param length the length of the array
+	 * @param random the Random Number Generator that should be used for the shuffling
+	 * @param swapper the callback on the swaps
+	 * @ArrayType(T)
+	 * @return the provided sorted array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectShuffle(KEY_TYPE[] array, int offset, int length, RANDOM random, Swapper swapper) {
+		for(int i = length-1; i>=0;i--) {
+			int j = offset + i;
+			int p = offset + random.nextInt(i + 1);
+			swapper.swap(j, p);
+			KEY_TYPE t = array[j];
+			array[j] = array[p];
+			array[p] = t;
+		}
+		return array;
+	}
+	
 	/**
 	 * Simple Array Reversal method
 	 * @param array the Array that should flip
@@ -541,6 +639,55 @@ public class ARRAYS
 		}
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Insertion Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @return input array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectInsertionSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectInsertionSort(array, 0, array.length, comp, swapper);
+		return array;
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Insertion Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectInsertionSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectInsertionSort(array, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Insertion Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectInsertionSort(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		for (int i = from+1;i<to; i++) {
+			KEY_TYPE current = array[i];
+			int j = i - 1;
+			while(j >= from && comp.compare(current, array[j]) < 0) {
+				swapper.swap(j+1, j);
+				array[j+1] = array[j--];
+			}
+			array[j+1] = current;
+		}
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using InsertionSort, 
 	 * @param array the array that needs to be sorted
@@ -627,6 +774,60 @@ public class ARRAYS
 		}
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Selection Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @return input array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectSelectionSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectSelectionSort(array, 0, array.length, comp, swapper);
+		return array;
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Selection Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectSelectionSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectSelectionSort(array, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Selection Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectSelectionSort(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		for (int i = from; i < to; i++) {
+			KEY_TYPE min = array[i];
+			int minId = i;
+			for(int j = i+1; j < to; j++) {
+				if(comp.compare(array[j], min) < 0) {
+					min = array[j];
+					minId = j;
+				}
+			}
+			swapper.swap(i, minId);
+			KEY_TYPE temp = array[i];
+			array[i] = min;
+			array[minId] = temp;
+		}
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using Selection Sort, 
 	 * @param array the array that needs to be sorted
@@ -656,7 +857,7 @@ public class ARRAYS
 	 * @ArrayType(T)
 	 */
 	public static GENERIC_KEY_BRACES void selectionSort(KEY_TYPE[] array, int from, int to) {
-		for (int i = from; i < to; i++) {
+		for (int i = from,m=to-1; i < m; i++) {
 			KEY_TYPE min = array[i];
 			int minId = i;
 			for(int j = i+1; j < to; j++) {
@@ -726,6 +927,72 @@ public class ARRAYS
 		}
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @return input array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectMergeSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectMergeSort(array, null, 0, array.length, comp, swapper);
+		return array;
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectMergeSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectMergeSort(array, null, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param supp the auxillary array that is used to simplify the sorting
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectMergeSort(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		if(to - from < BASE_THRESHOLD) {
+			indirectInsertionSort(array, from, to, comp, swapper);
+			return;
+		}
+		if(supp == null) supp = Arrays.copyOf(array, to);
+		int mid = (from + to) >>> 1;
+		indirectMergeSort(supp, array, from, mid, comp, swapper);
+		indirectMergeSort(supp, array, mid, to, comp, swapper);
+		if(comp.compare(supp[mid - 1], supp[mid]) <= 0)
+		{
+			System.arraycopy(supp, from, array, from, to - from);
+			return;
+		}
+		for(int p = from, q = mid;from < to;from++) {
+			if(q >= to || p < mid && comp.compare(supp[p], supp[q]) < 0) {
+				swapper.swap(from, p);
+				array[from] = supp[p++];
+				continue;
+			}
+			swapper.swap(from, q);
+			array[from] = supp[q++];
+		}
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using Merge Sort, 
 	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
@@ -822,6 +1089,56 @@ public class ARRAYS
 		mergeSort(array, supp, from, to, comp);
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using a Parallel Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelMergeSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectParallelMergeSort(array, null, 0, array.length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Parallel Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param swapper the callback which elements were swapped
+	 * @param comp the Comparator that decides the sorting order
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelMergeSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectParallelMergeSort(array, null, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Parallel Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param supp the auxillary array that is used to simplify the sorting
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelMergeSort(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		if(SanityChecks.canParallelTask() && to - from >= PARALLEL_THRESHOLD) {
+			SanityChecks.invokeTask(new MergeSortActionCompSwapBRACES(array, supp, from, to, comp, swapper));
+			return;
+		}
+		indirectMergeSort(array, supp, from, to, comp, swapper);
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using Parallel Merge Sort, 
 	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
@@ -1175,6 +1492,73 @@ public class ARRAYS
 		if((length = d - c) > 1) quickSort(array, to - length, to, comp);
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @return input array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectQuickSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectQuickSort(array, 0, array.length, comp, swapper);
+		return array;
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectQuickSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectQuickSort(array, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectQuickSort(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		int length = to - from;
+		if(length <= 0) return;
+		if(length < BASE_THRESHOLD) {
+			indirectSelectionSort(array, from, to, comp, swapper);
+			return;			
+		}
+		KEY_TYPE pivot = array[length > 128 ? subMedium(array, from, from + (length / 2), to - 1, length / 8, comp) : medium(array, from, from + (length / 2), to - 1, comp)];
+		int a = from, b = a, c = to - 1, d = c;
+		for(int compare;;swap(array, b++, c--, swapper)) {
+			for(;b<=c && (compare = comp.compare(array[b], pivot)) <= 0;b++) {
+				if(compare == 0) swap(array, a++, b, swapper);
+			}
+			for(;c>=b && (compare = comp.compare(array[c], pivot)) >= 0;c--) {
+				if(compare == 0) swap(array, c, d--, swapper);
+			}
+			if(b>c) break;
+		}
+		swap(array, from, b, Math.min(a - from, b - a), swapper); 
+		swap(array, b, to, Math.min(d - c, to - d - 1), swapper);
+		if((length = b - a) > 1) indirectQuickSort(array, from, from + length, comp, swapper);
+		if((length = d - c) > 1) indirectQuickSort(array, to - length, to, comp, swapper);
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using Quick Sort, 
 	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
@@ -1279,6 +1663,58 @@ public class ARRAYS
 		quickSort(array, from, to, comp);
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Parallel Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelQuickSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectParallelQuickSort(array, 0, array.length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Parallel Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelQuickSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectParallelQuickSort(array, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Parallel Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelQuickSort(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		if(SanityChecks.canParallelTask() && to - from >= PARALLEL_THRESHOLD) {
+			SanityChecks.invokeTask(new QuickSortActionCompSwapBRACES(array, from, to, comp, swapper));
+			return;
+		}
+		indirectQuickSort(array, from, to, comp, swapper);
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using Parallel Quick Sort, 
 	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
@@ -1333,6 +1769,18 @@ public class ARRAYS
 		for(int i = 0;i<length;i++,swap(a, from++, to++));
 	}
 	
+	static GENERIC_KEY_BRACES void swap(KEY_TYPE[] a, int from, int to, Swapper swapper) {
+		swapper.swap(from, to);
+		KEY_TYPE t = a[from];
+		a[from] = a[to];
+		a[to] = t;
+	}
+	
+	static GENERIC_KEY_BRACES void swap(KEY_TYPE[] a, int from, int to, int length, Swapper swapper) {
+		to -= length;
+		for(int i = 0;i<length;i++,swap(a, from++, to++, swapper));
+	}
+	
 	static GENERIC_KEY_BRACES int subMedium(KEY_TYPE[] data, int a, int b, int c, int length, COMPARATOR KEY_GENERIC_TYPE comp) {
 		return medium(data, medium(data, a, a + length, a + (length * 2), comp), medium(data, b - length, b, b + length, comp), medium(data, c - (length * 2), c - length, c, comp), comp);
 	}
@@ -1355,16 +1803,14 @@ public class ARRAYS
 		int from;
 		int to;
 		
-		QuickSortAction(KEY_TYPE[] array, int from, int to)
-		{
+		QuickSortAction(KEY_TYPE[] array, int from, int to) {
 			this.array = array;
 			this.from = from;
 			this.to = to;
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			int length = to - from;
 			if(length <= 0) return;
 			if(length < BASE_THRESHOLD) {
@@ -1397,8 +1843,7 @@ public class ARRAYS
 		int to;
 		COMPARATOR KEY_GENERIC_TYPE comp;
 		
-		QuickSortActionComp(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp)
-		{
+		QuickSortActionComp(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp) {
 			this.array = array;
 			this.from = from;
 			this.to = to;
@@ -1406,8 +1851,7 @@ public class ARRAYS
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			int length = to - from;
 			if(length <= 0) return;
 			if(length < BASE_THRESHOLD) {
@@ -1433,6 +1877,49 @@ public class ARRAYS
 		}
 	}
 	
+	static class QuickSortActionCompSwap KEY_GENERIC_TYPE extends RecursiveAction {
+		private static final long serialVersionUID = 0L;
+		KEY_TYPE[] array;
+		int from;
+		int to;
+		COMPARATOR KEY_GENERIC_TYPE comp;
+		Swapper swapper;
+		
+		QuickSortActionCompSwap(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+			this.array = array;
+			this.from = from;
+			this.to = to;
+			this.comp = comp;
+			this.swapper = swapper;
+		}
+		
+		@Override
+		protected void compute() {
+			int length = to - from;
+			if(length <= 0) return;
+			if(length < BASE_THRESHOLD) {
+				indirectSelectionSort(array, from, to, comp, swapper);
+				return;			
+			}
+			KEY_TYPE pivot = array[length > 128 ? subMedium(array, from, from + (length / 2), to - 1, length / 8, comp) : medium(array, from, from + (length / 2), to - 1, comp)];
+			int a = from, b = a, c = to - 1, d = c;
+			for(int compare;;swap(array, b++, c--, swapper)) {
+				for(;b<=c && (compare = comp.compare(array[b], pivot)) <= 0;b++) {
+					if(compare == 0) swap(array, a++, b, swapper);
+				}
+				for(;c>=b && (compare = comp.compare(array[c], pivot)) >= 0;c--) {
+					if(compare == 0) swap(array, c, d--, swapper);
+				}
+				if(b>c) break;
+			}
+			swap(array, from, b, Math.min(a - from, b - a), swapper); 
+			swap(array, b, to, Math.min(d - c, to - d - 1), swapper);
+			if(b - a > 1 && d - c > 1) invokeAll(new QuickSortActionCompSwapBRACES(array, from, from + (b - a), comp, swapper), new QuickSortActionCompSwapBRACES(array, to - (d - c), to, comp, swapper));
+			else if(b - a > 1) new QuickSortActionCompSwapBRACES(array, from, from + (b - a), comp, swapper).invoke();
+			else if(d - c > 1) new QuickSortActionCompSwapBRACES(array, to - (d - c), to, comp, swapper).invoke();
+		}
+	}
+	
 	static class MergeSortAction KEY_GENERIC_TYPE extends RecursiveAction {
 		private static final long serialVersionUID = 0L;
 		KEY_TYPE[] array;
@@ -1440,8 +1927,7 @@ public class ARRAYS
 		int from;
 		int to;
 		
-		MergeSortAction(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to)
-		{
+		MergeSortAction(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to) {
 			this.array = array;
 			this.supp = supp;
 			this.from = from;
@@ -1449,8 +1935,7 @@ public class ARRAYS
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			if(to - from < BASE_THRESHOLD) {
 				insertionSort(array, from, to);
 				return;
@@ -1478,8 +1963,7 @@ public class ARRAYS
 		int to;
 		COMPARATOR KEY_GENERIC_TYPE comp;
 		
-		MergeSortActionComp(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp)
-		{
+		MergeSortActionComp(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp) {
 			this.array = array;
 			this.supp = supp;
 			this.from = from;
@@ -1488,8 +1972,7 @@ public class ARRAYS
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			if(to - from < BASE_THRESHOLD) {
 				insertionSort(array, from, to, comp);
 				return;
@@ -1509,22 +1992,64 @@ public class ARRAYS
 		}
 	}
 	
+	static class MergeSortActionCompSwap KEY_GENERIC_TYPE extends RecursiveAction {
+		private static final long serialVersionUID = 0L;
+		KEY_TYPE[] array;
+		KEY_TYPE[] supp;
+		int from;
+		int to;
+		COMPARATOR KEY_GENERIC_TYPE comp;
+		Swapper swapper;
+		
+		MergeSortActionCompSwap(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+			this.array = array;
+			this.supp = supp;
+			this.from = from;
+			this.to = to;
+			this.comp = comp;
+			this.swapper = swapper;
+		}
+		
+		@Override
+		protected void compute() {
+			if(to - from < BASE_THRESHOLD) {
+				indirectInsertionSort(array, from, to, comp, swapper);
+				return;
+			}
+			if(supp == null) supp = Arrays.copyOf(array, to);
+			int mid = (from + to) >>> 1;
+			invokeAll(new MergeSortActionCompSwapBRACES(supp, array, from, mid, comp, swapper), new MergeSortActionCompSwapBRACES(supp, array, mid, to, comp, swapper));
+			if(comp.compare(supp[mid - 1], supp[mid]) <= 0)
+			{
+				System.arraycopy(supp, from, array, from, to - from);
+				return;
+			}
+			for(int p = from, q = mid;from < to;from++) {
+				if(q >= to || p < mid && comp.compare(supp[p], supp[q]) < 0) {
+					swapper.swap(from, p);
+					array[from] = supp[p++];
+					continue;
+				}
+				swapper.swap(from, q);
+				array[from] = supp[q++];
+			}
+		}
+	}
+	
 	static class MemFreeMergeSortAction KEY_GENERIC_TYPE extends RecursiveAction {
 		private static final long serialVersionUID = 0L;
 		KEY_TYPE[] array;
 		int from;
 		int to;
 		
-		MemFreeMergeSortAction(KEY_TYPE[] array, int from, int to)
-		{
+		MemFreeMergeSortAction(KEY_TYPE[] array, int from, int to) {
 			this.array = array;
 			this.from = from;
 			this.to = to;
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			if(to - from < BASE_THRESHOLD) {
 				insertionSort(array, from, to);
 				return;
@@ -1570,8 +2095,7 @@ public class ARRAYS
 		int to;
 		COMPARATOR KEY_GENERIC_TYPE comp;
 		
-		MemFreeMergeSortActionComp(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp)
-		{
+		MemFreeMergeSortActionComp(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp) {
 			this.array = array;
 			this.from = from;
 			this.to = to;
@@ -1579,8 +2103,7 @@ public class ARRAYS
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			if(to - from < BASE_THRESHOLD) {
 				insertionSort(array, from, to, comp);
 				return;

src/builder/resources/speiger/assets/collections/templates/utils/AsyncBuilder.template

@@ -7,40 +7,91 @@ import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 import java.util.concurrent.locks.LockSupport;
 import java.util.function.Consumer;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#else
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 #if !TYPE_OBJECT
 
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #else
+import java.util.function.IntFunction;
 import java.util.function.BiFunction;
 import java.util.Comparator;
 
+#iterate
+#argument MAPPER Predicate ToByteFunction ToShortFunction ToIntFunction ToLongFunction ToFloatFunction ToDoubleFunction
+#argument BUILDER BooleanAsyncBuilder ByteAsyncBuilder ShortAsyncBuilder IntAsyncBuilder LongAsyncBuilder FloatAsyncBuilder DoubleAsyncBuilder
+#argument PACKAGE booleans bytes shorts ints longs floats doubles
+#argument CHECK BOOLEAN_ASYNC_MODULE BYTE_ASYNC_MODULE SHORT_ASYNC_MODULE INT_ASYNC_MODULE LONG_ASYNC_MODULE FLOAT_ASYNC_MODULE DOUBLE_ASYNC_MODULE
+#if CHECK
+import speiger.src.collections.objects.functions.function.MAPPER;
+import speiger.src.collections.PACKAGE.utils.BUILDER;
+#endif
+#enditerate
 #endif
 import speiger.src.collections.PACKAGE.collections.ITERABLE;
+#if OBJECT_ASYNC_MODULE
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
+#endif
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.TASK;
+#if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
-import speiger.src.collections.PACKAGE.functions.function.TO_OBJECT_FUNCTION;
-import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
-import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
-import speiger.src.collections.PACKAGE.lists.LIST;
-#if !TYPE_BOOLEAN
-import speiger.src.collections.PACKAGE.sets.SET;
-import speiger.src.collections.PACKAGE.sets.LINKED_HASH_SET;
 #endif
-#if !TYPE_BOOLEAN
+#if OBJECT_ASYNC_MODULE
+import speiger.src.collections.PACKAGE.functions.function.TO_OBJECT_FUNCTION;
+#endif
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+#if ARRAY_LIST_FEATURE || LINKED_LIST_FEATURE 
+import speiger.src.collections.PACKAGE.lists.LIST;
+#if ARRAY_LIST_FEATURE
+import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
+#else if LINKED_LIST_FEATURE
+import speiger.src.collections.PACKAGE.lists.LINKED_LIST;
+#endif
+#endif
+#if !TYPE_BOOLEAN && OBJECT_ASYNC_MODULE
+#if SET_MODULE
+#if LINKED_SET_FEATURE || LINKED_CUSTOM_SET_FEATURE || SET_FEATURE || CUSTOM_SET_FEATURE || RB_TREE_SET_FEATURE || AVL_TREE_SET_FEATURE || ARRAY_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.SET;
+#if LINKED_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.LINKED_HASH_SET;
+#else if LINKED_CUSTOM_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.LINKED_CUSTOM_HASH_SET;
+#else if SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.HASH_SET;
+#else if CUSTOM_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.CUSTOM_HASH_SET;
+#else if RB_TREE_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.RB_TREE_SET;
+#else if AVL_TREE_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.AVL_TREE_SET;
+#else if ARRAY_SET_FEATURE
+import speiger.src.collections.PACKAGE.sets.ARRAY_SET;
+#endif
+#endif
+#endif
+#endif
+#if !TYPE_BOOLEAN && BOOLEAN_ASYNC_MODULE
+#if !TYPE_OBJECT
 import speiger.src.collections.booleans.utils.BooleanAsyncBuilder;
+#endif
 import speiger.src.collections.booleans.utils.BooleanAsyncBuilder.BaseBooleanTask;
 #endif
-#if !TYPE_OBJECT
+#if !TYPE_OBJECT && OBJECT_ASYNC_MODULE
 import speiger.src.collections.objects.utils.ObjectAsyncBuilder;
 import speiger.src.collections.objects.utils.ObjectAsyncBuilder.BaseObjectTask;
 #endif
-#if !TYPE_INT
+#if !TYPE_INT && INT_ASYNC_MODULE
+#if !TYPE_OBJECT
 import speiger.src.collections.ints.utils.IntAsyncBuilder;
+#endif
 import speiger.src.collections.ints.utils.IntAsyncBuilder.BaseIntTask;
 #endif
+import speiger.src.collections.utils.ISizeProvider;
 import speiger.src.collections.utils.SanityChecks;
 
 /**
@@ -113,6 +164,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		return new ASYNC_BUILDERBRACES(ITERABLES.wrap(iterable));
 	}
 	
+#if ARRAY_LIST_FEATURE
 	/**
 	 * Helper function that automatically wraps a array into a AsyncBuilder since it forces this collections Iterable.
 	 * @param values that should be wrapped
@@ -123,6 +175,8 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		return new ASYNC_BUILDERBRACES(ARRAY_LIST.wrap(values));
 	}
 	
+#endif
+#if OBJECT_ASYNC_MODULE
 	/**
 	 * Maps the elements to something else
 	 * @param mapper the mapping function
@@ -154,6 +208,26 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		return new ObjectAsyncBuilder<>(ITERABLES.arrayFlatMap(iterable, mapper));
 	}
 	
+#endif
+#if TYPE_OBJECT
+#iterate
+#argument BUILDER BooleanAsyncBuilder ByteAsyncBuilder ShortAsyncBuilder IntAsyncBuilder LongAsyncBuilder FloatAsyncBuilder DoubleAsyncBuilder
+#argument MAPPER Predicate ToByteFunction ToShortFunction ToIntFunction ToLongFunction ToFloatFunction ToDoubleFunction
+#argument TYPE Boolean Byte Short Int Long Float Double
+#argument CHECK BOOLEAN_ASYNC_MODULE BYTE_ASYNC_MODULE SHORT_ASYNC_MODULE INT_ASYNC_MODULE LONG_ASYNC_MODULE FLOAT_ASYNC_MODULE DOUBLE_ASYNC_MODULE
+#if CHECK
+	/**
+	 * Maps the elements to something else
+	 * @param mapper the mapping function
+	 * @return a new Builder Object with the mapped Iterable
+	 */
+	public BUILDER mapToTYPE(MAPPER<T> mapper) {
+		return new BUILDER(ITERABLES.mapToTYPE(iterable, mapper));
+	}
+	
+#endif
+#enditerate
+#endif
 	/**
 	 * Filters out the unwanted elements out of the Iterable
 	 * @param filter the elements that should be kept
@@ -173,6 +247,16 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		return this;
 	}
 	
+	/**
+	 * Repeats the elements inside of the Iterable
+	 * @param repeats the amount of times the elements should be repeated
+	 * @return self with a repeater applied
+	 */
+	public ASYNC_BUILDER KEY_GENERIC_TYPE repeat(int repeats) {
+		iterable = ITERABLES.repeat(iterable, repeats);
+		return this;
+	}
+	
 	/**
 	 * Limits how many elements are inside of the Iterable
 	 * @param limit how many elements should max be iterated through
@@ -204,6 +288,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		return this;
 	}
 	
+#if OBJECT_ASYNC_MODULE
 	/**
 	 * Iterates over the Iterable with a desired action
 	 * @param action that should be applied
@@ -213,14 +298,14 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		return new ObjectAsyncBuilder<>(new ForEachTask<>(iterable.iterator(), action));
 	}
 	
+#endif
 	/**
 	 * Reduces the elements inside of the Iterable down to one element
 	 * @param operator that reduces the elements.
 	 * @return self with the reduce action applied
 	 */
-	public ASYNC_BUILDER KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
-		task = new SimpleReduceTaskBRACES(iterable.iterator(), operator);
-		return this;
+	public ObjectAsyncBuilder<OPTIONAL KEY_GENERIC_TYPE> reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		return new ObjectAsyncBuilder<>(new SimpleReduceTaskBRACES(iterable.iterator(), operator));
 	}
 	
 #if TYPE_OBJECT
@@ -247,23 +332,66 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 	}
 	
 #endif
+#if OBJECT_ASYNC_MODULE
+#if TYPE_OBJECT
+	/**
+	 * Pours all elements of the Iterable down into a Array.
+	 * @param action creates the final array that should be copied into.
+	 * @return a new Builder with the ToArray function applied
+	 */
+	public ObjectAsyncBuilder<KEY_TYPE[]> TO_ARRAY(IntFunction<KEY_TYPE[]> action) {
+		return new ObjectAsyncBuilder<>(new ArrayTaskBRACES(iterable, action));
+	}
+	
+#else
+	/**
+	 * Pours all elements of the Iterable down into a Array.
+	 * @return a new Builder with the ToArray function applied
+	 */
+	public ObjectAsyncBuilder<KEY_TYPE[]> TO_ARRAY() {
+		return new ObjectAsyncBuilder<>(new ArrayTaskBRACES(iterable));
+	}
+	
+#endif
+#if ARRAY_LIST_FEATURE || LINKED_LIST_FEATURE
 	/**
 	 * Pours all elements into a List that can be later
 	 * @return a new Builder with the pour function applied
 	 */
 	public ObjectAsyncBuilder<LIST KEY_GENERIC_TYPE> pourAsList() {
+#if ARRAY_LIST_FEATURE
 		return pour(new ARRAY_LISTBRACES());
+#else
+		return pour(new LINKED_LISTBRACES());
+#endif
 	}
 	
-#if !TYPE_BOOLEAN
+#endif
+#if !TYPE_BOOLEAN && SET_MODULE
+#if LINKED_SET_FEATURE || LINKED_CUSTOM_SET_FEATURE || SET_FEATURE || CUSTOM_SET_FEATURE || RB_TREE_SET_FEATURE || AVL_TREE_SET_FEATURE || ARRAY_SET_FEATURE
 	/**
 	 * Pours all elements into a Set that can be later
 	 * @return a new Builder with the pour function applied
 	 */
 	public ObjectAsyncBuilder<SET KEY_GENERIC_TYPE> pourAsSet() {
+#if LINKED_SET_FEATURE
 		return pour(new LINKED_HASH_SETBRACES());
+#else if LINKED_CUSTOM_SET_FEATURE
+		return pour(new LINKED_CUSTOM_HASH_SETBRACES(STRATEGY.normalStrategy()));
+#else if SET_FEATURE
+		return pour(new HASH_SETBRACES());
+#else if CUSTOM_SET_FEATURE
+		return pour(new CUSTOM_HASH_SETBRACES(STRATEGY.normalStrategy()));
+#else if RB_TREE_SET_FEATURE
+		return pour(new RB_Tree_SETBRACES());
+#else if AVL_TREE_SET_FEATURE
+		return pour(new AVL_Tree_SETBRACES());
+#else if ARRAY_SET_FEATURE
+		return pour(new ARRAY_SETBRACES());
+#endif
 	}
 	
+#endif
 #endif
 	/**
 	 * Pours all elements into a collection that can be later
@@ -275,6 +403,8 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		return new ObjectAsyncBuilder<>(new CollectTask<>(iterable.iterator(), collection));
 	}
 	
+#endif
+#if BOOLEAN_ASYNC_MODULE
 	/**
 	 * Searches through the elements of the Iterable to find if the desired element is present.
 	 * @param filter that decides the desired elements
@@ -302,17 +432,18 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		return new BooleanAsyncBuilder(new MatchTaskBRACES(iterable.iterator(), filter, 2));
 	}
 	
+#endif
 	/**
 	 * Searches through the elements of the Iterable to find if the desired element.
 	 * If not present it will return the default value of the type
 	 * @param filter that decides the desired elements
 	 * @return self with the findFirst function applied
 	 */
-	public ASYNC_BUILDER KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
-		task = new FindFirstTaskBRACES(iterable.iterator(), filter);
-		return this;
+	public ObjectAsyncBuilder<OPTIONAL KEY_GENERIC_TYPE> findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+		return new ObjectAsyncBuilder<>(new FindFirstTaskBRACES(iterable.iterator(), filter));
 	}
 	
+#if INT_ASYNC_MODULE
 	/**
 	 * Counts all desired elements inside the Iterable
 	 * @param filter that decides the desired elements
@@ -322,6 +453,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		return new IntAsyncBuilder(new CountTaskBRACES(iterable.iterator(), filter));
 	}
 	
+#endif
 	/**
 	 * Optional way to add a custom executor that runs this offthread task.
 	 * Can only be set after the action was decided on.
@@ -461,7 +593,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 	}
 	
 #endif
-	private static class SimpleReduceTask KEY_GENERIC_TYPE extends BASE_TASK KEY_GENERIC_TYPE
+	private static class SimpleReduceTask KEY_GENERIC_TYPE extends BaseObjectTask<OPTIONAL KEY_GENERIC_TYPE>
 	{
 		ITERATOR KEY_GENERIC_TYPE iter;
 		UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator;
@@ -471,6 +603,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		public SimpleReduceTask(ITERATOR KEY_GENERIC_TYPE iter, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 			this.iter = iter;
 			this.operator = operator;
+			this.setResult(OPTIONAL.empty());
 		}
 		
 		@Override
@@ -485,7 +618,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 				}
 			}
 			if(!iter.hasNext()) {
-				setResult(value);
+				setResult(OPTIONAL.GET_OPTIONAL(value));
 				return true;
 			}
 			return false;
@@ -502,6 +635,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		}
 	}
 	
+#if BOOLEAN_ASYNC_MODULE
 	private static class MatchTask KEY_GENERIC_TYPE extends BaseBooleanTask
 	{
 		ITERATOR KEY_GENERIC_TYPE iter;
@@ -520,11 +654,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 			switch(type) {
 				case 0:
 					while(shouldRun() && iter.hasNext()) {
-#if TYPE_OBJECT
-						if(filter.getBoolean(iter.NEXT())) {
-#else
-						if(filter.GET_VALUE(iter.NEXT())) {
-#endif
+						if(filter.test(iter.NEXT())) {
 							setResult(true);
 							return true;
 						}
@@ -532,11 +662,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 					break;
 				case 1:
 					while(shouldRun() && iter.hasNext()) {
-#if TYPE_OBJECT
-						if(filter.getBoolean(iter.NEXT())) {
-#else
-						if(filter.GET_VALUE(iter.NEXT())) {
-#endif
+						if(filter.test(iter.NEXT())) {
 							setResult(false);
 							return true;
 						}
@@ -544,11 +670,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 					break;
 				case 2:
 					while(shouldRun() && iter.hasNext()) {
-#if TYPE_OBJECT
-						if(!filter.getBoolean(iter.NEXT())) {
-#else
-						if(!filter.GET_VALUE(iter.NEXT())) {
-#endif
+						if(!filter.test(iter.NEXT())) {
 							setResult(false);
 							return true;
 						}
@@ -570,7 +692,8 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		}
 	}
 	
-	private static class FindFirstTask KEY_GENERIC_TYPE extends BASE_TASK KEY_GENERIC_TYPE
+#endif
+	private static class FindFirstTask KEY_GENERIC_TYPE extends BaseObjectTask<OPTIONAL KEY_GENERIC_TYPE>
 	{
 		ITERATOR KEY_GENERIC_TYPE iter;
 		PREDICATE KEY_GENERIC_TYPE filter;
@@ -578,18 +701,15 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		public FindFirstTask(ITERATOR KEY_GENERIC_TYPE iter, PREDICATE KEY_GENERIC_TYPE filter) {
 			this.iter = iter;
 			this.filter = filter;
+			this.setResult(OPTIONAL.empty());
 		}
 
 		@Override
 		protected boolean execute() throws Exception {
 			while(shouldRun() && iter.hasNext()) {
 				KEY_TYPE entry = iter.NEXT();
-#if TYPE_OBJECT
-				if(filter.getBoolean(iter.NEXT())) {
-#else
-				if(filter.GET_VALUE(iter.NEXT())) {
-#endif
-					setResult(entry);
+				if(filter.test(iter.NEXT())) {
+					setResult(OPTIONAL.GET_OPTIONAL(entry));
 					return true;
 				}
 			}
@@ -604,6 +724,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		}
 	}
 	
+#if INT_ASYNC_MODULE
 	private static class CountTask KEY_GENERIC_TYPE extends BaseIntTask
 	{
 		ITERATOR KEY_GENERIC_TYPE iter;
@@ -618,7 +739,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		@Override
 		protected boolean execute() throws Exception {
 			while(shouldRun() && iter.hasNext()) {
-				if(filter.TEST_VALUE(iter.NEXT())) {
+				if(filter.test(iter.NEXT())) {
 					counted++;
 				}
 			}
@@ -638,6 +759,8 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		}
 	}
 	
+#endif
+#if OBJECT_ASYNC_MODULE
 	private static class CollectTask KSS_GENERIC_TYPE<V, T extends COLLECTION KEY_SPECIAL_GENERIC_TYPE<V>> extends BaseObjectTask<T>
 	{
 		ITERATOR KEY_SPECIAL_GENERIC_TYPE<V> iter;
@@ -668,6 +791,52 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		}
 	}
 	
+	private static class ArrayTask KEY_GENERIC_TYPE extends BaseObjectTask<KEY_TYPE[]>
+	{
+		ITERATOR KEY_GENERIC_TYPE iter;
+		COLLECTIONS.CollectionWrapper KEY_GENERIC_TYPE wrapper;
+#if TYPE_OBJECT
+		IntFunction<KEY_TYPE[]> builder;
+		
+		public ArrayTask(ITERABLE KEY_GENERIC_TYPE iterable, IntFunction<KEY_TYPE[]> builder) {
+			this.builder = builder;
+#else
+	
+		public ArrayTask(ITERABLE KEY_GENERIC_TYPE iterable) {
+#endif
+			iter = iterable.iterator();
+			ISizeProvider prov = ISizeProvider.of(iterable);
+			int size = prov == null ? -1 : prov.size();
+			wrapper = size < 0 ? COLLECTIONS.wrapper() : COLLECTIONS.wrapper(size);
+		}
+		
+		@Override
+		protected boolean execute() throws Exception {
+			while(shouldRun() && iter.hasNext()) {
+				wrapper.add(iter.NEXT());
+			}
+			if(!iter.hasNext()) {
+#if TYPE_OBJECT
+				setResult(wrapper.TO_ARRAY(builder));
+#else
+				setResult(wrapper.TO_ARRAY());
+#endif
+				wrapper = null;
+				return true;
+			}
+			return false;
+		}
+		
+		@Override
+		protected void onCompletion() {
+			super.onCompletion();
+			iter = null;
+#if TYPE_OBJECT
+			builder = null;
+#endif
+		}
+	}
+	
 	private static class ForEachTask<T> extends BaseObjectTask<Void>
 	{
 		ITERATOR KEY_GENERIC_TYPE iter;
@@ -694,6 +863,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		}
 	}
 	
+#endif
 	/**
 	 * Base Task of the Actions that can be performed.
 	 * Allows to simplify the actions that get executed.

src/builder/resources/speiger/assets/collections/templates/utils/Collections.template

@@ -1,26 +1,57 @@
 package speiger.src.collections.PACKAGE.utils;
 
+import java.util.Arrays;
 import java.util.Collection;
+#if !TYPE_BOOLEAN
+import java.util.ConcurrentModificationException;
+#endif
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#endif
 #if TYPE_OBJECT
+import java.util.Comparator;
 import java.util.function.BiFunction;
 #endif
 import java.util.function.Predicate;
-#if PRIMITIVES
+#if JDK_FUNCTION && !TYPE_OBJECT
+import java.util.function.PREDICATE;
+#endif
+#if PRIMITIVES && !JDK_FUNCTION
 import java.util.function.JAVA_PREDICATE;
 #endif
 import java.util.function.Consumer;
 
 import speiger.src.collections.PACKAGE.collections.ABSTRACT_COLLECTION;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
-import speiger.src.collections.PACKAGE.collections.ITERATOR;
-import speiger.src.collections.objects.utils.ObjectArrays;
-#if !TYPE_OBJECT
-import speiger.src.collections.PACKAGE.functions.CONSUMER;
-import speiger.src.collections.PACKAGE.utils.ARRAYS;
+#if ORDERED_MAP_FEATURE
+import speiger.src.collections.PACKAGE.collections.ORDERED_COLLECTION;
 #endif
+import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if !TYPE_OBJECT
+import speiger.src.collections.PACKAGE.functions.COMPARATOR;
+#endif
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.utils.ObjectArrays;
+import speiger.src.collections.PACKAGE.functions.CONSUMER;
+#endif
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+import speiger.src.collections.ints.functions.consumer.BI_FROM_INT_CONSUMER;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !TYPE_BOOLEAN
+import speiger.src.collections.utils.HashUtil;
+#endif
+import speiger.src.collections.utils.ITrimmable;
+import speiger.src.collections.utils.SanityChecks;
+
 /**
  * A Helper class for Collections
  */
@@ -54,6 +85,37 @@ public class COLLECTIONS
 		return c instanceof UnmodifiableCollection ? c : new UnmodifiableCollectionBRACES(c);
 	}
 	
+	/**
+	 * Returns a Immutable Ordered Collection instance based on the instance given.
+	 * @param c that should be made immutable/unmodifiable
+	 * @Type(T)
+	 * @return a unmodifiable Ordered collection wrapper. If the Collection already a unmodifiable wrapper then it just returns itself.
+	 */
+	public static GENERIC_KEY_BRACES ORDERED_COLLECTION KEY_GENERIC_TYPE unmodifiable(ORDERED_COLLECTION KEY_GENERIC_TYPE c) {
+		return c instanceof UnmodifiableOrderedCollection ? c : new UnmodifiableOrderedCollectionBRACES(c);
+	}
+	
+	/**
+	 * Returns a synchronized ordered Collection instance based on the instance given.
+	 * @param c that should be synchronized
+	 * @Type(T)
+	 * @return a synchronized ordered collection wrapper. If the Collection already a synchronized wrapper then it just returns itself.
+	 */
+	public static GENERIC_KEY_BRACES ORDERED_COLLECTION KEY_GENERIC_TYPE synchronize(ORDERED_COLLECTION KEY_GENERIC_TYPE c) {
+		return c instanceof SynchronizedOrderedCollection ? c : new SynchronizedOrderedCollectionBRACES(c);
+	}
+	
+	/**
+	 * Returns a synchronized ordered Collection instance based on the instance given.
+	 * @param c that should be synchronized
+	 * @param mutex is the controller of the synchronization block.
+	 * @Type(T)
+	 * @return a synchronized ordered collection wrapper. If the Collection already a synchronized wrapper then it just returns itself.
+	 */
+	public static GENERIC_KEY_BRACES ORDERED_COLLECTION KEY_GENERIC_TYPE synchronize(ORDERED_COLLECTION KEY_GENERIC_TYPE c, Object mutex) {
+		return c instanceof SynchronizedOrderedCollection ? c : new SynchronizedOrderedCollectionBRACES(c, mutex);
+	}
+	
 	/**
 	 * Returns a synchronized Collection instance based on the instance given.
 	 * @param c that should be synchronized
@@ -75,6 +137,613 @@ public class COLLECTIONS
 		return c instanceof SynchronizedCollection ? c : new SynchronizedCollectionBRACES(c, mutex);
 	}
 	
+	/**
+	 * Creates a Singleton Collection of a given element
+	 * @param element the element that should be converted into a singleton collection
+	 * @Type(T)
+	 * @return a singletoncollection of the given element
+	 */
+	public static GENERIC_KEY_BRACES COLLECTION KEY_GENERIC_TYPE singleton(KEY_TYPE element) {
+		return new SingletonCollectionBRACES(element);
+	}
+	
+	/**
+	 * Internal Use mainly. Its a collection wrapper with 0 dependencies for those actions where a collector is needed.
+	 */
+	public static GENERIC_KEY_BRACES CollectionWrapper KEY_GENERIC_TYPE wrapper() {
+		return new CollectionWrapperBRACES();
+	}
+	
+	protected static GENERIC_KEY_BRACES CollectionWrapper KEY_GENERIC_TYPE wrapper(int size) {
+		return new CollectionWrapperBRACES(size);
+	}
+	
+#if !TYPE_BOOLEAN
+	protected static GENERIC_KEY_BRACES DistinctCollectionWrapper KEY_GENERIC_TYPE distinctWrapper() {
+		return new DistinctCollectionWrapperBRACES();
+	}
+	
+	protected static GENERIC_KEY_BRACES DistinctCollectionWrapper KEY_GENERIC_TYPE distinctWrapper(int size) {
+		return new DistinctCollectionWrapperBRACES(size);
+	}
+	
+#endif	
+	protected static class CollectionWrapper KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION KEY_GENERIC_TYPE implements ITrimmable {
+		KEY_TYPE[] elements;
+		int size = 0;
+		
+		public CollectionWrapper() {
+			this(10);
+		}
+		
+		public CollectionWrapper(int size) {
+			if(size < 0) throw new IllegalStateException("Size has to be 0 or greater");
+			elements = NEW_KEY_ARRAY(size);
+		}
+		
+		@Override
+		public boolean add(KEY_TYPE o) {
+			if(size >= elements.length) elements = Arrays.copyOf(elements, (int)Math.min((long)elements.length + (elements.length >> 1), SanityChecks.MAX_ARRAY_SIZE));
+			elements[size++] = o;
+			return true;
+		}
+		
+		public KEY_TYPE GET_KEY(int index) {
+			if(index < 0 || index >= size) throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
+			return elements[index];
+		}
+		
+#if TYPE_OBJECT
+		@Override
+		public boolean remove(Object e) {
+			for(int i = 0;i<size;i++) {
+				if(KEY_EQUALS(elements[i], e)) {
+					removeIndex(i);
+					return true;
+				}
+			}
+			return false;
+		}
+		
+#else
+		@Override
+		public boolean REMOVE_KEY(KEY_TYPE e) {
+			for(int i = 0;i<size;i++) {
+				if(KEY_EQUALS(elements[i], e)) {
+					removeIndex(i);
+					return true;
+				}
+			}
+			return false;
+		}
+		
+#endif
+		private void removeIndex(int index) {
+			if(index < 0 || index >= size) throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
+			size--;
+			if(index != size) System.arraycopy(elements, index+1, elements, index, size - index);
+		}
+		
+		@Override
+		public ITERATOR KEY_GENERIC_TYPE iterator() {
+			return new ITERATOR KEY_GENERIC_TYPE() {
+				int index = 0;
+				int lastReturned = -1;
+				
+				@Override
+				public boolean hasNext() {
+					return index < size;
+				}
+				
+				@Override
+				public KEY_TYPE NEXT() {
+					int i = index++;
+					return elements[(lastReturned = i)];
+				}
+				
+				@Override
+				public void remove() {
+					if(lastReturned == -1) throw new IllegalStateException();
+					removeIndex(lastReturned);
+					index = lastReturned;
+					lastReturned = -1;
+				}
+			};
+		}
+		
+		@Override
+		public int size() {
+			return size;
+		}
+		
+		@Override
+		public void clear() {
+#if TYPE_OBJECT
+			for(int i = 0;i<size;elements[i] = null,i++);
+#endif
+			size = 0;
+		}
+		
+#if TYPE_OBJECT
+		public void sort(Comparator<? super CLASS_TYPE> c) {
+			if(c != null) ARRAYS.stableSort(elements, size, c);
+			else ARRAYS.stableSort(elements, size);
+		}
+
+		public void unstableSort(Comparator<? super CLASS_TYPE> c) {
+			if(c != null) ARRAYS.unstableSort(elements, size, c);
+			else ARRAYS.unstableSort(elements, size);
+		}
+		
+#else
+		public void sort(COMPARATOR c) {
+			if(c != null) ARRAYS.stableSort(elements, size, c);
+			else ARRAYS.stableSort(elements, size);
+		}
+		
+		public void unstableSort(COMPARATOR c) {
+			if(c != null) ARRAYS.unstableSort(elements, size, c);
+			else ARRAYS.unstableSort(elements, size);		
+		}
+		
+#endif
+		@Override
+		public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			for(int i = 0;i<size;i++)
+				action.accept(elements[i]);
+		}
+		
+		@Override
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
+			Objects.requireNonNull(action);
+			for(int i = 0;i<size;i++)
+				action.accept(input, elements[i]);		
+		}
+		
+		@Override
+		public boolean trim(int size) {
+			if(size > size() || size() == elements.length) return false;
+			int value = Math.max(size, size());
+			elements = value == 0 ? EMPTY_KEY_ARRAY : Arrays.copyOf(elements, value);
+			return true;
+		}
+		
+		@Override
+		public void clearAndTrim(int size) {
+			if(elements.length <= size) {
+				clear();
+				return;
+			}
+			elements = size == 0 ? EMPTY_KEY_ARRAY : NEW_KEY_ARRAY(size);
+			this.size = size;
+		}
+		
+		@Override
+		@Primitive
+		public Object[] toArray() {
+			Object[] obj = new Object[size];
+			for(int i = 0;i<size;i++)
+				obj[i] = KEY_TO_OBJ(elements[i]);
+			return obj;
+		}
+		
+		@Override
+		@Primitive
+		public <E> E[] toArray(E[] a) {
+			if(a == null) a = (E[])new Object[size];
+			else if(a.length < size) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size);
+	#if TYPE_OBJECT
+	        System.arraycopy(elements, 0, a, 0, size);
+	#else
+			for(int i = 0;i<size;i++)
+				a[i] = (E)KEY_TO_OBJ(elements[i]);
+	#endif
+			if (a.length > size) a[size] = null;
+			return a;
+		}
+		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
+			if(a.length < size) a = new KEY_TYPE[size];
+			System.arraycopy(elements, 0, a, 0, size);
+			if (a.length > size) a[size] = EMPTY_KEY_VALUE;
+			return a;
+		}		
+#endif
+	}
+	
+#if !TYPE_BOOLEAN
+	protected static class DistinctCollectionWrapper KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION KEY_GENERIC_TYPE {
+		KEY_TYPE[] keys;
+		boolean containsNull;
+		int minCapacity;
+		int nullIndex;
+		int maxFill;
+		int mask;
+		int size;
+		
+		public DistinctCollectionWrapper() {
+			this(HashUtil.DEFAULT_MIN_CAPACITY);
+		}
+		
+		public DistinctCollectionWrapper(int size) {
+			if(minCapacity < 0)	throw new IllegalStateException("Minimum Capacity is negative. This is not allowed");
+			minCapacity = nullIndex = HashUtil.arraySize(minCapacity, HashUtil.DEFAULT_LOAD_FACTOR);
+			mask = nullIndex - 1;
+			maxFill = Math.min((int)Math.ceil(nullIndex * HashUtil.DEFAULT_LOAD_FACTOR), nullIndex - 1);
+			keys = NEW_KEY_ARRAY(nullIndex + 1);
+		}
+
+		@Override
+		public boolean add(KEY_TYPE o) {
+			if(KEY_EQUALS_NULL(o)) {
+				if(containsNull) return false;
+				containsNull = true;
+			}
+			else {
+				int pos = HashUtil.mix(KEY_TO_HASH(o)) & mask;
+				KEY_TYPE current = keys[pos];
+				if(KEY_EQUALS_NOT_NULL(current)) {
+					if(KEY_EQUALS(current, o)) return false;
+					while(KEY_EQUALS_NOT_NULL((current = keys[pos = (++pos & mask)])))
+						if(KEY_EQUALS(current, o)) return false;
+				}
+				keys[pos] = o;
+			}
+			if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, HashUtil.DEFAULT_LOAD_FACTOR));
+			return true;
+		}
+		
+		@Override
+		public boolean contains(Object o) {
+#if TYPE_OBJECT
+			if(o == null) return containsNull;
+#else
+			if(o == null) return false;
+			if(o instanceof CLASS_TYPE && KEY_EQUALS(CLASS_TO_KEY(o), EMPTY_KEY_VALUE)) return containsNull;
+#endif
+			int pos = HashUtil.mix(o.hashCode()) & mask;
+			KEY_TYPE current = keys[pos];
+			if(KEY_EQUALS_NULL(current)) return false;
+			if(EQUALS_KEY_TYPE(current, o)) return true;
+			while(true) {
+				if(KEY_EQUALS_NULL((current = keys[pos = (++pos & mask)]))) return false;
+				else if(EQUALS_KEY_TYPE(current, o)) return true;
+			}
+		}
+
+		@Override
+		public boolean remove(Object o) {
+#if TYPE_OBJECT
+			if(o == null) return (containsNull ? removeNullIndex() : false);
+#else
+			if(o == null) return false;
+			if(o instanceof CLASS_TYPE && KEY_EQUALS(CLASS_TO_KEY(o), EMPTY_KEY_VALUE)) return (containsNull ? removeNullIndex() : false);
+#endif
+			int pos = HashUtil.mix(o.hashCode()) & mask;
+			KEY_TYPE current = keys[pos];
+			if(KEY_EQUALS_NULL(current)) return false;
+			if(EQUALS_KEY_TYPE(current, o)) return removeIndex(pos);
+			while(true) {
+				if(KEY_EQUALS_NULL((current = keys[pos = (++pos & mask)]))) return false;
+				else if(EQUALS_KEY_TYPE(current, o)) return removeIndex(pos);
+			}
+		}
+
+#if !TYPE_OBJECT
+		@Override
+		public boolean contains(KEY_TYPE o) {
+			if(KEY_EQUALS_NULL(o)) return containsNull;
+			int pos = HashUtil.mix(KEY_TO_HASH(o)) & mask;
+			KEY_TYPE current = keys[pos];
+			if(KEY_EQUALS_NULL(current)) return false;
+			if(KEY_EQUALS(current, o)) return true;
+			while(true) {
+				if(KEY_EQUALS_NULL((current = keys[pos = (++pos & mask)]))) return false;
+				else if(KEY_EQUALS(current, o)) return true;
+			}
+		}
+		
+		@Override
+		public boolean REMOVE_KEY(KEY_TYPE o) {
+			if(KEY_EQUALS_NULL(o)) return containsNull ? removeNullIndex() : false;
+			int pos = HashUtil.mix(KEY_TO_HASH(o)) & mask;
+			KEY_TYPE current = keys[pos];
+			if(KEY_EQUALS_NULL(current)) return false;
+			if(KEY_EQUALS(current, o)) return removeIndex(pos);
+			while(true) {
+				if(KEY_EQUALS_NULL((current = keys[pos = (++pos & mask)]))) return false;
+				else if(KEY_EQUALS(current, o)) return removeIndex(pos);
+			}
+		}
+		
+#endif		
+		protected boolean removeIndex(int pos) {
+			if(pos == nullIndex) return containsNull ? removeNullIndex() : false;
+			keys[pos] = EMPTY_KEY_VALUE;
+			size--;
+			shiftKeys(pos);
+			if(nullIndex > minCapacity && size < maxFill / 4 && nullIndex > HashUtil.DEFAULT_MIN_CAPACITY) rehash(nullIndex / 2);
+			return true;
+		}
+		
+		protected boolean removeNullIndex() {
+			containsNull = false;
+			keys[nullIndex] = EMPTY_KEY_VALUE;
+			size--;
+			if(nullIndex > minCapacity && size < maxFill / 4 && nullIndex > HashUtil.DEFAULT_MIN_CAPACITY) rehash(nullIndex / 2);
+			return true;
+		}
+		
+		@Override
+		public ITERATOR KEY_GENERIC_TYPE iterator() {
+			return new SetIterator();
+		}
+		
+		@Override
+		public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
+			if(size() <= 0) return;
+			if(containsNull) action.accept(keys[nullIndex]);
+			for(int i = nullIndex-1;i>=0;i--) {
+				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(keys[i]);
+			}
+		}
+		
+		@Override
+		public DistinctCollectionWrapper KEY_GENERIC_TYPE copy() {
+			DistinctCollectionWrapper KEY_GENERIC_TYPE set = new DistinctCollectionWrapperBRACES(0);
+			set.minCapacity = minCapacity;
+			set.mask = mask;
+			set.maxFill = maxFill;
+			set.nullIndex = nullIndex;
+			set.containsNull = containsNull;
+			set.size = size;
+			set.keys = Arrays.copyOf(keys, keys.length);
+			return set;
+		}
+		
+		protected void shiftKeys(int startPos) {
+			int slot, last;
+			KEY_TYPE current;
+			while(true) {
+				startPos = ((last = startPos) + 1) & mask;
+				while(true){
+					if(KEY_EQUALS_NULL((current = keys[startPos]))) {
+						keys[last] = EMPTY_KEY_VALUE;
+						return;
+					}
+					slot = HashUtil.mix(KEY_TO_HASH(current)) & mask;
+					if(last <= startPos ? (last >= slot || slot > startPos) : (last >= slot && slot > startPos)) break;
+					startPos = ++startPos & mask;
+				}
+				keys[last] = current;
+			}
+		}
+		
+		protected void rehash(int newSize) {
+			int newMask = newSize - 1;
+			KEY_TYPE[] newKeys = NEW_KEY_ARRAY(newSize + 1);
+			for(int i = nullIndex, pos = 0, j = (size - (containsNull ? 1 : 0));j-- != 0;) {
+				while(true) {
+					if(--i < 0) throw new ConcurrentModificationException("Set was modified during rehash");
+					if(KEY_EQUALS_NOT_NULL(keys[i])) break;
+				}
+				if(KEY_EQUALS_NOT_NULL(newKeys[pos = HashUtil.mix(KEY_TO_HASH(keys[i])) & newMask]))
+					while(KEY_EQUALS_NOT_NULL(newKeys[pos = (++pos & newMask)]));
+				newKeys[pos] = keys[i];
+			}
+			nullIndex = newSize;
+			mask = newMask;
+			maxFill = Math.min((int)Math.ceil(nullIndex * HashUtil.DEFAULT_LOAD_FACTOR), nullIndex - 1);
+			keys = newKeys;
+		}
+		
+		@Override
+		public void clear() {
+			if(size == 0) return;
+			size = 0;
+			containsNull = false;
+			Arrays.fill(keys, EMPTY_KEY_VALUE);
+		}
+		
+		@Override
+		public int size() {
+			return size;
+		}
+		
+		private class SetIterator implements ITERATOR KEY_GENERIC_TYPE {
+			int pos = nullIndex;
+			int returnedPos = -1;
+			int lastReturned = -1;
+			int nextIndex = Integer.MIN_VALUE;
+			boolean returnNull = containsNull;
+			KEY_TYPE[] wrapped = null;
+			int wrappedIndex = 0;
+			
+			@Override
+			public boolean hasNext() {
+				if(nextIndex == Integer.MIN_VALUE) {
+					if(returnNull) {
+						returnNull = false;
+						nextIndex = nullIndex;
+					}
+					else
+					{
+						while(true) {
+							if(--pos < 0) {
+								if(wrapped == null || wrappedIndex <= -pos - 1) break;
+								nextIndex = -pos - 1;
+								break;
+							}
+							if(KEY_EQUALS_NOT_NULL(keys[pos])){
+								nextIndex = pos;
+								break;
+							}
+						}
+					}
+				}
+				return nextIndex != Integer.MIN_VALUE;
+			}
+			
+			@Override
+			public KEY_TYPE NEXT() {
+				if(!hasNext()) throw new NoSuchElementException();
+				returnedPos = pos;
+				if(nextIndex < 0){
+					lastReturned = Integer.MAX_VALUE;
+					KEY_TYPE value = wrapped[nextIndex];
+					nextIndex = Integer.MIN_VALUE;
+					return value;
+				}
+				KEY_TYPE value = keys[(lastReturned = nextIndex)];
+				nextIndex = Integer.MIN_VALUE;
+				return value;
+			}
+			
+			@Override
+			public void remove() {
+				if(lastReturned == -1) throw new IllegalStateException();
+				if(lastReturned == nullIndex) {
+					containsNull = false;
+					keys[nullIndex] = EMPTY_KEY_VALUE;
+				}
+				else if(returnedPos >= 0) shiftKeys(returnedPos);
+				else {
+#if TYPE_OBJECT
+					DistinctCollectionWrapper.this.remove(wrapped[-returnedPos - 1]);
+#else
+					DistinctCollectionWrapper.this.REMOVE_KEY(wrapped[-returnedPos - 1]);
+#endif
+					lastReturned = -1;
+					return;
+				}
+				size--;
+				lastReturned = -1;
+			}
+			
+			private void shiftKeys(int startPos) {
+				int slot, last;
+				KEY_TYPE current;
+				while(true) {
+					startPos = ((last = startPos) + 1) & mask;
+					while(true){
+						if(KEY_EQUALS_NULL((current = keys[startPos]))) {
+							keys[last] = EMPTY_KEY_VALUE;
+							return;
+						}
+						slot = HashUtil.mix(KEY_TO_HASH(current)) & mask;
+						if(last <= startPos ? (last >= slot || slot > startPos) : (last >= slot && slot > startPos)) break;
+						startPos = ++startPos & mask;
+					}
+					if(startPos < last) addWrapper(keys[startPos]);
+					keys[last] = current;
+				}
+			}
+			
+			private void addWrapper(KEY_TYPE value) {
+				if(wrapped == null) wrapped = NEW_KEY_ARRAY(2);
+				else if(wrappedIndex >= wrapped.length) {
+					KEY_TYPE[] newArray = NEW_KEY_ARRAY(wrapped.length * 2);
+					System.arraycopy(wrapped, 0, newArray, 0, wrapped.length);
+					wrapped = newArray;
+				}
+				wrapped[wrappedIndex++] = value;
+			}
+		}
+	}
+	
+#endif
+	private static class SingletonCollection KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION KEY_GENERIC_TYPE
+	{
+		KEY_TYPE element;
+		
+		SingletonCollection(KEY_TYPE element) {
+			this.element = element;
+		}
+		
+#if !TYPE_OBJECT
+		@Override
+		public boolean REMOVE_KEY(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+#endif
+		@Override
+		public boolean add(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public ITERATOR KEY_GENERIC_TYPE iterator()
+		{
+			return new ITERATOR KEY_GENERIC_TYPE() {
+				boolean next = true;
+				@Override
+				public boolean hasNext() { return next; }
+				@Override
+				public KEY_TYPE NEXT() {
+					if(!hasNext()) throw new NoSuchElementException();
+					next = false;
+					return element;
+				}
+			};
+		}
+		
+		@Override
+		public boolean equals(Object o) {
+			if (o == this)
+				return true;
+			if (!(o instanceof Collection))
+				return false;
+			Collection<?> l = (Collection<?>)o;
+			if(l.size() != size()) return false;
+			Iterator<?> iter = l.iterator();
+			if (iter.hasNext() && !Objects.equals(element, iter.next())) {
+				return false;
+			}
+			return !iter.hasNext();
+		}
+		
+		@Override
+		public int hashCode() {
+			return KEY_TO_HASH(element);
+		}
+		
+		@Override
+		public int size() { return 1; }
+		
+		@Override
+		public SingletonCollection KEY_GENERIC_TYPE copy() { return new SingletonCollectionBRACES(element); }
+	}
+	/**
+	 * Synchronized Ordered Collection Wrapper for the synchronizedCollection function
+	 * @Type(T)
+	 */
+	public static class SynchronizedOrderedCollection KEY_GENERIC_TYPE extends SynchronizedCollection KEY_GENERIC_TYPE implements ORDERED_COLLECTION KEY_GENERIC_TYPE {
+		ORDERED_COLLECTION KEY_GENERIC_TYPE c;
+		
+		SynchronizedOrderedCollection(ORDERED_COLLECTION KEY_GENERIC_TYPE c, Object mutex) {
+			super(c, mutex);
+			this.c = c;
+		}
+		
+		SynchronizedOrderedCollection(ORDERED_COLLECTION KEY_GENERIC_TYPE c) {
+			super(c);
+			this.c = c;
+		}
+		
+		@Override
+		public ORDERED_COLLECTION KEY_GENERIC_TYPE reversed() { return COLLECTIONS.synchronize(c.reversed(), mutex); }
+		@Override
+		public void addFirst(KEY_TYPE e) { synchronized(mutex) { this.c.addFirst(e); } }
+		@Override
+		public void addLast(KEY_TYPE e) { synchronized(mutex) { this.c.addLast(e); } }
+		@Override
+		public KEY_TYPE GET_FIRST_KEY() { synchronized(mutex) { return this.c.GET_FIRST_KEY(); } }
+		@Override
+		public KEY_TYPE REMOVE_FIRST_KEY() { synchronized(mutex) { return this.c.REMOVE_FIRST_KEY(); } }
+		@Override
+		public KEY_TYPE GET_LAST_KEY() { synchronized(mutex) { return this.c.GET_LAST_KEY(); } }
+		@Override
+		public KEY_TYPE REMOVE_LAST_KEY() { synchronized(mutex) { return this.c.REMOVE_LAST_KEY(); } }
+	}	
+	
 	/**
 	 * Synchronized Collection Wrapper for the synchronizedCollection function
 	 * @Type(T)
@@ -183,10 +852,15 @@ public class COLLECTIONS
 		@Override
 		public void forEach(Consumer<? super CLASS_TYPE> action) { synchronized(mutex) { c.forEach(action); } }
 #endif
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) { synchronized(mutex) { c.forEachIndexed(action); } }
 		@Override
 		public int hashCode() { synchronized(mutex) { return c.hashCode(); } }
 		@Override
-		public boolean equals(Object obj) { synchronized(mutex) { return c.equals(obj); } }
+		public boolean equals(Object obj) {
+			if(obj == this) return true;
+			synchronized(mutex) { return c.equals(obj); } 
+		}
 		@Override
 		public String toString() { synchronized(mutex) { return c.toString(); } }
 		@Override
@@ -204,13 +878,41 @@ public class COLLECTIONS
 		public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) { synchronized(mutex) { return c.reduce(identity, operator); } }
 #endif
 		@Override
-		public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) { synchronized(mutex) { return c.reduce(operator); } }
+		public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) { synchronized(mutex) { return c.reduce(operator); } }
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return c.findFirst(filter); } }
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return c.findFirst(filter); } }
 		@Override
 		public int count(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return c.count(filter); } }
 	}
 	
+	/**
+	 * Unmodifyable Ordered Collection Wrapper for the unmodifyableCollection method
+	 * @Type(T)
+	 */
+	public static class UnmodifiableOrderedCollection KEY_GENERIC_TYPE extends UnmodifiableCollection KEY_GENERIC_TYPE implements ORDERED_COLLECTION KEY_GENERIC_TYPE {
+		ORDERED_COLLECTION KEY_GENERIC_TYPE c;
+		
+		UnmodifiableOrderedCollection(ORDERED_COLLECTION KEY_GENERIC_TYPE c) {
+			super(c);
+			this.c = c;
+		}
+		
+		@Override
+		public ORDERED_COLLECTION KEY_GENERIC_TYPE reversed() { return COLLECTIONS.unmodifiable(c.reversed()); }
+		@Override
+		public void addFirst(KEY_TYPE e) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(KEY_TYPE e) { throw new UnsupportedOperationException(); }
+		@Override
+		public KEY_TYPE GET_FIRST_KEY() { return c.GET_FIRST_KEY(); }
+		@Override
+		public KEY_TYPE REMOVE_FIRST_KEY() { throw new UnsupportedOperationException(); }
+		@Override
+		public KEY_TYPE GET_LAST_KEY() { return c.GET_LAST_KEY(); }
+		@Override
+		public KEY_TYPE REMOVE_LAST_KEY() { throw new UnsupportedOperationException(); }
+	}
+	
 	/**
 	 * Unmodifyable Collection Wrapper for the unmodifyableCollection method
 	 * @Type(T)
@@ -305,10 +1007,12 @@ public class COLLECTIONS
 		@Override
 		public void forEach(Consumer<? super CLASS_TYPE> action) { c.forEach(action); }
 #endif
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) { c.forEachIndexed(action); }
 		@Override
 		public int hashCode() { return c.hashCode(); }
 		@Override
-		public boolean equals(Object obj) { return c.equals(obj); }
+		public boolean equals(Object obj) { return obj == this || c.equals(obj); }
 		@Override
 		public String toString() { return c.toString(); }
 		@Override
@@ -326,9 +1030,9 @@ public class COLLECTIONS
 		public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) { return c.reduce(identity, operator); }
 #endif
 		@Override
-		public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) { return c.reduce(operator); }
+		public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) { return c.reduce(operator); }
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) { return c.findFirst(filter); }
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) { return c.findFirst(filter); }
 		@Override
 		public int count(PREDICATE KEY_GENERIC_TYPE filter) { return c.count(filter); }
 	}
@@ -350,7 +1054,7 @@ public class COLLECTIONS
 		@Override
 		public boolean contains(KEY_TYPE o) { return false; }
 		@Override
-		public boolean containsAll(COLLECTION KEY_GENERIC_TYPE c) { return false; }
+		public boolean containsAll(COLLECTION KEY_GENERIC_TYPE c) { return c.isEmpty(); }
 		@Override
 		public boolean containsAny(COLLECTION KEY_GENERIC_TYPE c) { return false; }
 #else
@@ -362,7 +1066,7 @@ public class COLLECTIONS
 		public boolean containsAny(Collection<?> c) { return false; }
 		@Override
 		@Primitive
-		public boolean containsAll(Collection<?> c) { return false; }
+		public boolean containsAll(Collection<?> c) { return c.isEmpty(); }
 		@Override
 		public int hashCode() { return 0; }
 		
@@ -401,14 +1105,28 @@ public class COLLECTIONS
 		public Object[] toArray() { return ObjectArrays.EMPTY_ARRAY; }
 #if !TYPE_OBJECT
 		@Override
-		public <T> T[] toArray(T[] a) { return a; }
+		public <T> T[] toArray(T[] a) {
+			if(a != null && a.length > 0)
+				a[0] = null;
+			return a;
+		}
+		
 		@Override
 		public KEY_TYPE[] TO_ARRAY() { return ARRAYS.EMPTY_ARRAY; }
 		@Override
-		public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) { return a; }
+		public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
+			if(a != null && a.length > 0)
+				a[0] = EMPTY_KEY_VALUE;
+			return a;
+		}
+		
 #else
 		@Override
-		public <E> E[] toArray(E[] a) { return a; }
+		public <E> E[] toArray(E[] a) {
+			if(a != null && a.length > 0)
+				a[0] = EMPTY_KEY_VALUE;
+			return a;
+		}
 #endif
 		@Override
 		public ITERATOR KEY_GENERIC_TYPE iterator() { return ITERATORS.empty(); }

src/builder/resources/speiger/assets/collections/templates/utils/IArray.template

@@ -7,7 +7,9 @@ import speiger.src.collections.utils.IArray;
 
 /**
  * Type-Specific Helper class to get the underlying array of array implementations.
+#if ARRAY_LIST_FEATURE
  * @see speiger.src.collections.PACKAGE.lists.ARRAY_LIST
+#endif
  * @Type(T)
  */
 public interface IARRAY KEY_GENERIC_TYPE extends IArray

src/builder/resources/speiger/assets/collections/templates/utils/Iterables.template

@@ -8,23 +8,44 @@ import java.util.Comparator;
 #endif
 import java.util.concurrent.atomic.AtomicLong;
 import java.util.function.Consumer;
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.ITERABLE;
+import speiger.src.collections.PACKAGE.collections.COLLECTION;
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.collections.ObjectIterable;
 import speiger.src.collections.objects.collections.ObjectIterator;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
+#else
+#if BOOLEAN_COLLECTION_MODULE
+import speiger.src.collections.booleans.functions.BooleanConsumer;
+import speiger.src.collections.booleans.collections.BooleanIterable;
+import speiger.src.collections.booleans.collections.BooleanIterator;
+#endif
+#iterate
+#argument FILTER_TYPE BYTE_COLLECTION_MODULE SHORT_COLLECTION_MODULE INT_COLLECTION_MODULE LONG_COLLECTION_MODULE FLOAT_COLLECTION_MODULE DOUBLE_COLLECTION_MODULE
+#argument CONSUMER ByteConsumer ShortConsumer IntConsumer LongConsumer FloatConsumer DoubleConsumer
+#argument OUTPUT_ITERABLE ByteIterable ShortIterable IntIterable LongIterable FloatIterable DoubleIterable
+#argument OUTPUT_ITERATOR ByteIterator ShortIterator IntIterator LongIterator FloatIterator DoubleIterator
+#argument MAPPER ToByteFunction ToShortFunction ToIntFunction ToLongFunction ToFloatFunction ToDoubleFunction
+#argument PACKAGE bytes shorts ints longs floats doubles
+#if FILTER_TYPE
+import speiger.src.collections.PACKAGE.functions.CONSUMER;
+import speiger.src.collections.objects.functions.function.MAPPER;
+import speiger.src.collections.PACKAGE.collections.OUTPUT_ITERABLE;
+import speiger.src.collections.PACKAGE.collections.OUTPUT_ITERATOR;
+#endif
+#enditerate
 #endif
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
-import speiger.src.collections.PACKAGE.lists.LIST;
-import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
 import speiger.src.collections.PACKAGE.functions.function.TO_OBJECT_FUNCTION;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
-#if !TYPE_BOOLEAN
-import speiger.src.collections.PACKAGE.sets.HASH_SET;
-import speiger.src.collections.PACKAGE.sets.SET;
 #endif
+import speiger.src.collections.utils.ISizeProvider;
 
 /**
  * A Helper class for Iterables
@@ -55,6 +76,39 @@ public class ITERABLES
 		return new MappedIterable<>(iterable, mapper);
 	}
 	
+#if TYPE_OBJECT
+#iterate
+#argument MAPPED_TYPE MappedBoolean MappedByte MappedShort MappedInt MappedLong MappedFloat MappedDouble
+#argument OUTPUT_ITERABLE BooleanIterable ByteIterable ShortIterable IntIterable LongIterable FloatIterable DoubleIterable
+#argument MAPPER Predicate ToByteFunction ToShortFunction ToIntFunction ToLongFunction ToFloatFunction ToDoubleFunction
+#argument DATA_TYPE Boolean Byte Short Int Long Float Double
+#argument FILTER_TYPE BOOLEAN_COLLECTION_MODULE BYTE_COLLECTION_MODULE SHORT_COLLECTION_MODULE INT_COLLECTION_MODULE LONG_COLLECTION_MODULE FLOAT_COLLECTION_MODULE DOUBLE_COLLECTION_MODULE
+#if FILTER_TYPE
+	/**
+	 * A Helper function that maps a Java-Iterable into a new Type.
+	 * @param iterable the iterable that should be mapped
+	 * @param mapper the function that decides what the result turns into.
+	 * @Type(T)
+	 * @return a iterable that is mapped to a new result
+	 */
+	public static <T> OUTPUT_ITERABLE mapToDATA_TYPE(Iterable<? extends CLASS_TYPE> iterable, MAPPER<T> mapper) {
+		return new MAPPED_TYPEIterable<>(wrap(iterable), mapper);
+	}
+	
+	/**
+	 * A Helper function that maps a Iterable into a new Type.
+	 * @param iterable the iterable that should be mapped
+	 * @param mapper the function that decides what the result turns into.
+	 * @Type(T)
+	 * @return a iterable that is mapped to a new result
+	 */
+	public static <T> OUTPUT_ITERABLE mapToDATA_TYPE(ITERABLE KEY_GENERIC_TYPE iterable, MAPPER<T> mapper) {
+		return new MAPPED_TYPEIterable<>(iterable, mapper);
+	}
+	
+#endif
+#enditerate
+#endif
 	/**
 	 * A Helper function that flatMaps a Java-Iterable into a new Type.
 	 * @param iterable the iterable that should be flatMapped
@@ -147,6 +201,28 @@ public class ITERABLES
 		return new DistinctIterableBRACES(wrap(iterable));
 	}
 	
+	/**
+	 * A Helper function that repeats the Iterable a specific amount of times
+	 * @param iterable that should be repeated
+	 * @param repeats the amount of times the iterable should be repeated
+	 * @Type(T)
+	 * @return a repeating iterable
+	 */
+	public static GENERIC_KEY_BRACES ITERABLE KEY_GENERIC_TYPE repeat(ITERABLE KEY_GENERIC_TYPE iterable, int repeats) {
+		return new RepeatingIterableBRACES(iterable, repeats);
+	}
+	
+	/**
+	 * A Helper function that repeats the Iterable a specific amount of times from a Java Iterable
+	 * @param iterable that should be repeated
+	 * @param repeats the amount of times the iterable should be repeated
+	 * @Type(T)
+	 * @return a repeating iterable
+	 */
+	public static GENERIC_KEY_BRACES ITERABLE KEY_GENERIC_TYPE repeat(Iterable<? extends CLASS_TYPE> iterable, int repeats) {
+		return new RepeatingIterableBRACES(wrap(iterable), repeats);
+	}
+	
 	/**
 	 * A Helper function that hard limits the Iterable to a specific size
 	 * @param iterable that should be limited
@@ -225,7 +301,7 @@ public class ITERABLES
 		return new WrappedIterableBRACES(iterable);
 	}
 	
-	private static class WrappedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
+	private static class WrappedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE, ISizeProvider
 	{
 		Iterable<? extends CLASS_TYPE> iterable;
 		
@@ -237,6 +313,12 @@ public class ITERABLES
 			return ITERATORS.wrap(iterable.iterator());
 		}
 		
+		@Override
+		public int size() {
+			ISizeProvider prov = ISizeProvider.of(iterable);
+			return prov == null ? -1 : prov.size();
+		}
+		
 #if !TYPE_OBJECT
 		@Override
 		public void forEach(CONSUMER action) {
@@ -251,7 +333,48 @@ public class ITERABLES
 #endif
 	}
 	
-	private static class MappedIterable KSS_GENERIC_TYPE<E, T> implements ObjectIterable<T>
+#if TYPE_OBJECT
+#iterate
+#argument CONSUMER BooleanConsumer ByteConsumer ShortConsumer IntConsumer LongConsumer FloatConsumer DoubleConsumer
+#argument MAPPED_TYPE MappedBoolean MappedByte MappedShort MappedInt MappedLong MappedFloat MappedDouble
+#argument OUTPUT_ITERABLE BooleanIterable ByteIterable ShortIterable IntIterable LongIterable FloatIterable DoubleIterable
+#argument OUTPUT_ITERATOR BooleanIterator ByteIterator ShortIterator IntIterator LongIterator FloatIterator DoubleIterator
+#argument MAPPER Predicate ToByteFunction ToShortFunction ToIntFunction ToLongFunction ToFloatFunction ToDoubleFunction
+#argument APPLY test applyAsByte applyAsShort applyAsInt applyAsLong applyAsFloat applyAsDouble
+#argument DATA_TYPE Boolean Byte Short Int Long Float Double
+#argument FILTER_TYPE BOOLEAN_COLLECTION_MODULE BYTE_COLLECTION_MODULE SHORT_COLLECTION_MODULE INT_COLLECTION_MODULE LONG_COLLECTION_MODULE FLOAT_COLLECTION_MODULE DOUBLE_COLLECTION_MODULE
+#if FILTER_TYPE
+	private static class MAPPED_TYPEIterable<E> implements OUTPUT_ITERABLE, ISizeProvider
+	{
+		ITERABLE KEY_SPECIAL_GENERIC_TYPE<E> iterable;
+		MAPPER<E> mapper;
+		
+		MAPPED_TYPEIterable(ITERABLE<E> iterable, MAPPER<E> mapper) {
+			this.iterable = iterable;
+			this.mapper = mapper;
+		}
+		
+		public OUTPUT_ITERATOR iterator() {
+			return ITERATORS.mapToDATA_TYPE(iterable.iterator(), mapper);
+		}
+		
+		@Override
+		public int size() {
+			ISizeProvider prov = ISizeProvider.of(this);
+			return prov == null ? -1 : prov.size();
+		}
+		
+		@Override
+		public void forEach(CONSUMER action) {
+			Objects.requireNonNull(action);
+			iterable.forEach(E -> action.accept(mapper.APPLY(E)));
+		}
+	}
+	
+#endif
+#enditerate
+#endif
+	private static class MappedIterable KSS_GENERIC_TYPE<E, T> implements ObjectIterable<T>, ISizeProvider
 	{
 		ITERABLE KEY_SPECIAL_GENERIC_TYPE<E> iterable;
 		TO_OBJECT_FUNCTION KSS_GENERIC_TYPE<E, T> mapper;
@@ -265,10 +388,16 @@ public class ITERABLES
 			return ITERATORS.map(iterable.iterator(), mapper);
 		}
 		
+		@Override
+		public int size() {
+			ISizeProvider prov = ISizeProvider.of(this);
+			return prov == null ? -1 : prov.size();
+		}
+		
 		@Override
 		public void forEach(Consumer<? super T> action) {
 			Objects.requireNonNull(action);
-			iterable.forEach(E -> action.accept(mapper.GET_VALUE(E)));
+			iterable.forEach(E -> action.accept(mapper.apply(E)));
 		}
 	}
 	
@@ -290,7 +419,7 @@ public class ITERABLES
 		@Override
 		public void forEach(Consumer<? super T> action) {
 			Objects.requireNonNull(action);
-			iterable.forEach(E -> mapper.GET_VALUE(E).forEach(action));
+			iterable.forEach(E -> mapper.apply(E).forEach(action));
 		}
 		
 	}
@@ -314,12 +443,54 @@ public class ITERABLES
 		public void forEach(Consumer<? super T> action) {
 			Objects.requireNonNull(action);
 			iterable.forEach(E -> {
-				T[] array = mapper.GET_VALUE(E);
+				T[] array = mapper.apply(E);
 				for(int i = 0,m=array.length;i<m;action.accept(array[i++]));
 			});
 		}
 	}
 	
+	private static class RepeatingIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE, ISizeProvider
+	{
+		ITERABLE KEY_GENERIC_TYPE iterable;
+		int repeats;
+		
+		public RepeatingIterable(ITERABLE KEY_GENERIC_TYPE iterable, int repeats) {
+			this.iterable = iterable;
+			this.repeats = repeats;
+		}
+		
+		@Override
+		public ITERATOR KEY_GENERIC_TYPE iterator() {
+			return ITERATORS.repeat(iterable.iterator(), repeats);
+		}
+		
+		@Override
+		public int size() {
+			ISizeProvider prov = ISizeProvider.of(iterable);
+			return prov == null ? -1 : prov.size() * (repeats+1);
+		}
+		
+#if !TYPE_OBJECT
+		@Override
+		public void forEach(CONSUMER action) {
+			Objects.requireNonNull(action);
+			COLLECTION KEY_GENERIC_TYPE repeater = COLLECTIONS.wrapper();
+			iterable.forEach(action.andThen(repeater::add));
+			for(int i = 0;i<repeats;i++)
+				repeater.forEach(action);
+		}
+#else
+		@Override
+		public void forEach(Consumer<? super CLASS_TYPE> action) {
+			Objects.requireNonNull(action);
+			COLLECTION KEY_GENERIC_TYPE repeater = COLLECTIONS.wrapper();
+			iterable.forEach(T -> {action.accept(T); repeater.add(T);});
+			for(int i = 0;i<repeats;i++)
+				repeater.forEach(action);
+		}
+#endif
+	}
+	
 	private static class FilteredIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
 	{
 		ITERABLE KEY_GENERIC_TYPE iterable;
@@ -339,17 +510,17 @@ public class ITERABLES
 		@Override
 		public void forEach(CONSUMER action) {
 			Objects.requireNonNull(action);
-			iterable.forEach(T -> { if(!filter.TEST_VALUE(T)) action.accept(T); } );
+			iterable.forEach(T -> { if(!filter.test(T)) action.accept(T); } );
 		}
 #else
 		public void forEach(Consumer<? super CLASS_TYPE> action) {
 			Objects.requireNonNull(action);
-			iterable.forEach(T -> { if(!filter.TEST_VALUE(T)) action.accept(T); } );
+			iterable.forEach(T -> { if(!filter.test(T)) action.accept(T); } );
 		}
 #endif
 	}
 	
-	private static class LimitedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
+	private static class LimitedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE, ISizeProvider
 	{
 		ITERABLE KEY_GENERIC_TYPE iterable;
 		long limit;
@@ -364,6 +535,12 @@ public class ITERABLES
 			return ITERATORS.limit(iterable.iterator(), limit);
 		}
 		
+		@Override
+		public int size() {
+			ISizeProvider prov = ISizeProvider.of(iterable);
+			return prov == null ? -1 : (int)Math.min(prov.size(), limit);
+		}
+		
 #if !TYPE_OBJECT
 		@Override
 		public void forEach(CONSUMER action) {
@@ -388,7 +565,7 @@ public class ITERABLES
 #endif
 	}
 	
-	private static class SortedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
+	private static class SortedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE, ISizeProvider
 	{
 		ITERABLE KEY_GENERIC_TYPE iterable;
 		COMPARATOR KEY_GENERIC_TYPE sorter;
@@ -403,23 +580,29 @@ public class ITERABLES
 			return ITERATORS.sorted(iterable.iterator(), sorter);
 		}
 		
+		@Override
+		public int size() {
+			ISizeProvider prov = ISizeProvider.of(iterable);
+			return prov == null ? -1 : prov.size();
+		}
+		
 #if !TYPE_OBJECT
 		@Override
 		public void forEach(CONSUMER action) {
 			Objects.requireNonNull(action);
-			LIST KEY_GENERIC_TYPE list = new ARRAY_LISTBRACES();
-			iterable.forEach(list::add);
-			list.unstableSort(sorter);
-			list.forEach(action);
+			COLLECTIONS.CollectionWrapper KEY_GENERIC_TYPE wrapper = COLLECTIONS.wrapper();
+			iterable.forEach(wrapper::add);
+			wrapper.unstableSort(sorter);
+			wrapper.forEach(action);
 		}
 #else
 		@Override
 		public void forEach(Consumer<? super CLASS_TYPE> action) {
 			Objects.requireNonNull(action);
-			LIST KEY_GENERIC_TYPE list = new ARRAY_LISTBRACES();
-			iterable.forEach(list::add);
-			list.unstableSort(sorter);
-			list.forEach(action);
+			COLLECTIONS.CollectionWrapper KEY_GENERIC_TYPE wrapper = COLLECTIONS.wrapper();
+			iterable.forEach(wrapper::add);
+			wrapper.unstableSort(sorter);
+			wrapper.forEach(action);
 		}
 #endif
 	}
@@ -449,20 +632,20 @@ public class ITERABLES
 				action.accept(T);
 			});
 #else
-			SET KEY_GENERIC_TYPE filtered = new HASH_SETBRACES();
+			COLLECTION KEY_GENERIC_TYPE filtered = COLLECTIONS.distinctWrapper();
 			iterable.forEach(T -> { if(filtered.add(T)) action.accept(T); });
 #endif
 		}
 #else
 		public void forEach(Consumer<? super CLASS_TYPE> action) {
 			Objects.requireNonNull(action);
-			SET KEY_GENERIC_TYPE filtered = new HASH_SETBRACES();
+			COLLECTION KEY_GENERIC_TYPE filtered = COLLECTIONS.distinctWrapper();
 			iterable.forEach(T -> { if(filtered.add(T)) action.accept(T); });
 		}
 #endif
 	}
 	
-	private static class PeekIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
+	private static class PeekIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE, ISizeProvider
 	{
 		ITERABLE KEY_GENERIC_TYPE iterable;
 		CONSUMER KEY_GENERIC_TYPE action;
@@ -477,6 +660,12 @@ public class ITERABLES
 			return ITERATORS.peek(iterable.iterator(), action);
 		}
 		
+		@Override
+		public int size() {
+			ISizeProvider prov = ISizeProvider.of(iterable);
+			return prov == null ? -1 : prov.size();
+		}
+		
 #if !TYPE_OBJECT
 		@Override
 		public void forEach(CONSUMER action) {

src/builder/resources/speiger/assets/collections/templates/utils/Iterators.template

@@ -4,7 +4,10 @@ import java.util.Iterator;
 import java.util.NoSuchElementException;
 #if TYPE_OBJECT
 import java.util.Comparator;
-import java.util.function.CONSUMER;
+#endif
+import java.util.function.Consumer;
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
 #endif
 
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
@@ -13,18 +16,39 @@ import speiger.src.collections.objects.collections.ObjectIterator;
 import speiger.src.collections.objects.utils.ObjectIterators;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
+#else
+#if BOOLEAN_COLLECTION_MODULE
+import speiger.src.collections.booleans.collections.BooleanIterator;
+#endif
+#iterate
+#argument ITERATOR ByteIterator ShortIterator IntIterator LongIterator FloatIterator DoubleIterator
+#argument PACKAGE bytes shorts ints longs floats doubles
+#argument MAPPER ToByteFunction ToShortFunction ToIntFunction ToLongFunction ToFloatFunction ToDoubleFunction
+#argument FILTER_TYPE BYTE_COLLECTION_MODULE SHORT_COLLECTION_MODULE INT_COLLECTION_MODULE LONG_COLLECTION_MODULE FLOAT_COLLECTION_MODULE DOUBLE_COLLECTION_MODULE
+#if FILTER_TYPE
+import speiger.src.collections.objects.functions.function.MAPPER;
+import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#endif
+#enditerate
 #endif
 import speiger.src.collections.PACKAGE.functions.function.TO_OBJECT_FUNCTION;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
-import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
+#endif
+#if ARRAY_LIST_FEATURE || LINKED_LIST_FEATURE
 import speiger.src.collections.PACKAGE.lists.LIST;
+#if ARRAY_LIST_FEATURE
+import speiger.src.collections.PACKAGE.lists.ARRAY_LIST;
+#else if LINKED_LIST_FEATURE
+import speiger.src.collections.PACKAGE.lists.LINKED_LIST;
+#endif
+
+#endif
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
-#if !TYPE_BOOLEAN
-import speiger.src.collections.PACKAGE.sets.HASH_SET;
-import speiger.src.collections.PACKAGE.sets.SET;
-#endif
+import speiger.src.collections.PACKAGE.utils.COLLECTIONS.CollectionWrapper;
 
 /**
  * A Helper class for Iterators
@@ -41,7 +65,7 @@ public class ITERATORS
 	 * @Type(T)
 	 * @return an empty iterator
 	 */
-	public static GENERIC_KEY_BRACES EmptyIterator KEY_GENERIC_TYPE empty() {
+	public static GENERIC_KEY_BRACES LIST_ITERATOR KEY_GENERIC_TYPE empty() {
 #if TYPE_OBJECT
 		return (EmptyIterator<KEY_TYPE>)EMPTY;
 #else
@@ -99,6 +123,7 @@ public class ITERATORS
 		return iterator instanceof UnmodifiableListIterator ? iterator : new UnmodifiableListIteratorBRACES(iterator);
 	}
 	
+#if OBJECT_COLLECTION_MODULE
 	/**
 	 * A Helper function that maps a Java-Iterator into a new Type.
 	 * @param iterator that should be mapped
@@ -123,6 +148,40 @@ public class ITERATORS
 		return new MappedIterator<>(iterator, mapper);
 	}
 	
+#endif
+#if TYPE_OBJECT
+#iterate
+#argument MAPPED_TYPE MappedBoolean MappedByte MappedShort MappedInt MappedLong MappedFloat MappedDouble
+#argument OUTPUT_ITERATOR BooleanIterator ByteIterator ShortIterator IntIterator LongIterator FloatIterator DoubleIterator
+#argument MAPPER Predicate ToByteFunction ToShortFunction ToIntFunction ToLongFunction ToFloatFunction ToDoubleFunction
+#argument DATA_TYPE Boolean Byte Short Int Long Float Double
+#argument FILTER_TYPE BOOLEAN_COLLECTION_MODULE BYTE_COLLECTION_MODULE SHORT_COLLECTION_MODULE INT_COLLECTION_MODULE LONG_COLLECTION_MODULE FLOAT_COLLECTION_MODULE DOUBLE_COLLECTION_MODULE
+#if FILTER_TYPE
+	/**
+	 * A Helper function that maps a Java-Iterator into a new Type.
+	 * @param iterator that should be mapped
+	 * @param mapper the function that decides what the result turns into.
+	 * @Type(T)
+	 * @return a iterator that is mapped to a new result
+	 */
+	public static <T> OUTPUT_ITERATOR mapToDATA_TYPE(Iterator<? extends CLASS_TYPE> iterator, MAPPER<T> mapper) {
+		return new MAPPED_TYPEIterator<>(wrap(iterator), mapper);
+	}
+	
+	/**
+	 * A Helper function that maps a Iterator into a new Type.
+	 * @param iterator that should be mapped
+	 * @param mapper the function that decides what the result turns into.
+	 * @Type(T)
+	 * @return a iterator that is mapped to a new result
+	 */
+	public static <T> OUTPUT_ITERATOR mapToDATA_TYPE(ITERATOR KEY_GENERIC_TYPE iterator, MAPPER<T> mapper) {
+		return new MAPPED_TYPEIterator<>(iterator, mapper);
+	}
+	
+#endif
+#enditerate
+#endif
 	/**
 	 * A Helper function that flatMaps a Java-Iterator into a new Type.
 	 * @param iterator that should be flatMapped
@@ -215,6 +274,48 @@ public class ITERATORS
 		return new DistinctIteratorBRACES(wrap(iterator));
 	}
 	
+	/**
+	 * A Helper function that repeats the Iterator a specific amount of times
+	 * @param iterator that should be repeated
+	 * @param repeats the amount of times the iterator should be repeated
+	 * @Type(T)
+	 * @return a repeating iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE repeat(ITERATOR KEY_GENERIC_TYPE iterator, int repeats) {
+		return new RepeatingIteratorBRACES(iterator, repeats);
+	}
+	
+	/**
+	 * A Helper function that repeats the Iterator a specific amount of times from a Java Iterator
+	 * @param iterator that should be repeated
+	 * @param repeats the amount of times the iterator should be repeated
+	 * @Type(T)
+	 * @return a repeating iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE repeat(Iterator<? extends CLASS_TYPE> iterator, int repeats) {
+		return new RepeatingIteratorBRACES(wrap(iterator), repeats);
+	}
+	
+	/**
+	 * A Helper function that creates a infinitely looping iterator
+	 * @param iterator that should be looping infinitely
+	 * @Type(T)
+	 * @return a infinitely looping iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE infinite(ITERATOR KEY_GENERIC_TYPE iterator) {
+		return new InfiniteIteratorBRACES(iterator);
+	}
+	
+	/**
+	 * A Helper function that creates a infinitely looping iterator from a Java Iterator
+	 * @param iterator that should be looping infinitely
+	 * @Type(T)
+	 * @return a infinitely looping iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE infinite(Iterator<? extends CLASS_TYPE> iterator) {
+		return new InfiniteIteratorBRACES(wrap(iterator));
+	}
+	
 	/**
 	 * A Helper function that hard limits the Iterator to a specific size
 	 * @param iterator that should be limited
@@ -299,7 +400,7 @@ public class ITERATORS
 	 * @ArrayType(T)
 	 * @return a Iterator that is wrapping a array.
 	 */
-	public static GENERIC_KEY_BRACES ArrayIterator KEY_GENERIC_TYPE wrap(KEY_TYPE[] a) {
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE wrap(KEY_TYPE... a) {
 		return wrap(a, 0, a.length);
 	}
 	
@@ -311,7 +412,7 @@ public class ITERATORS
 	 * @ArrayType(T)
 	 * @return a Iterator that is wrapping a array.
 	 */
-	public static GENERIC_KEY_BRACES ArrayIterator KEY_GENERIC_TYPE wrap(KEY_TYPE[] a, int start, int end) {
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE wrap(KEY_TYPE[] a, int start, int end) {
 		return new ArrayIteratorBRACES(a, start, end);
 	}
 	
@@ -446,6 +547,8 @@ public class ITERATORS
 	}
 	
 #endif
+#if LIST_MODULE
+#if ARRAY_LIST_FEATURE || LINKED_LIST_FEATURE
 	/**
 	 * A Helper function to pours all elements of a Iterator into a List
 	 * @param iter the elements that should be poured into list.
@@ -464,12 +567,20 @@ public class ITERATORS
 	 * @return A list of all requested elements of the Iterator
 	 */
 	public static GENERIC_KEY_BRACES LIST KEY_GENERIC_TYPE pour(ITERATOR KEY_GENERIC_TYPE iter, int max) {
+#if ARRAY_LIST_FEATURE
 		ARRAY_LIST KEY_GENERIC_TYPE list = new ARRAY_LISTBRACES();
+#else
+		LINKED_LIST KEY_GENERIC_TYPE list = new LINKED_LISTBRACES();
+#endif
 		pour(iter, list, max);
+#if ARRAY_LIST_FEATURE
 		list.trim();
+#endif
 		return list;
 	}
 	
+#endif
+#endif
 	/**
 	 * A Helper function to pours all elements of a Iterator into a Collection
 	 * @param iter the elements that should be poured into list.
@@ -729,41 +840,21 @@ public class ITERATORS
 	private static class EmptyIterator KEY_GENERIC_TYPE implements LIST_ITERATOR KEY_GENERIC_TYPE
 	{
 		@Override
-		public boolean hasNext() {
-			return false;
-		}
-	
+		public boolean hasNext() { return false; }
 		@Override
-		public KEY_TYPE NEXT() {
-			throw new NoSuchElementException();
-		}
-
+		public KEY_TYPE NEXT() { throw new NoSuchElementException(); }
 		@Override
-		public boolean hasPrevious() {
-			return false;
-		}
-		
+		public boolean hasPrevious() { return false; }
 		@Override
-		public KEY_TYPE PREVIOUS() {
-			throw new NoSuchElementException();
-		}
-		
+		public KEY_TYPE PREVIOUS() { throw new NoSuchElementException(); }
 		@Override
-		public int nextIndex() {
-			return 0;
-		}
-		
+		public int nextIndex() { return 0; }
 		@Override
-		public int previousIndex() {
-			return 0;
-		}
-		
+		public int previousIndex() { return -1; }
 		@Override
 		public void remove() { throw new UnsupportedOperationException(); }
-
 		@Override
 		public void set(KEY_TYPE e) { throw new UnsupportedOperationException(); }
-
 		@Override
 		public void add(KEY_TYPE e) { throw new UnsupportedOperationException(); }
 	}
@@ -817,7 +908,7 @@ public class ITERATORS
 		
 		@Override
 		public T next() {
-			return mapper.GET_VALUE(iterator.NEXT());
+			return mapper.apply(iterator.NEXT());
 		}
 		
 		@Override
@@ -826,6 +917,45 @@ public class ITERATORS
 		}
 	}
 	
+#if TYPE_OBJECT
+#iterate
+#argument MAPPED_TYPE MappedBoolean MappedByte MappedShort MappedInt MappedLong MappedFloat MappedDouble
+#argument NEXT_TYPE nextBoolean nextByte nextShort nextInt nextLong nextFloat nextDouble
+#argument OUTPUT_ITERATOR BooleanIterator ByteIterator ShortIterator IntIterator LongIterator FloatIterator DoubleIterator
+#argument MAPPER Predicate ToByteFunction ToShortFunction ToIntFunction ToLongFunction ToFloatFunction ToDoubleFunction
+#argument APPLY test applyAsByte applyAsShort applyAsInt applyAsLong applyAsFloat applyAsDouble
+#argument DATA_TYPE boolean byte short int long float double
+#argument FILTER_TYPE BOOLEAN_COLLECTION_MODULE BYTE_COLLECTION_MODULE SHORT_COLLECTION_MODULE INT_COLLECTION_MODULE LONG_COLLECTION_MODULE FLOAT_COLLECTION_MODULE DOUBLE_COLLECTION_MODULE
+#if FILTER_TYPE
+	private static class MAPPED_TYPEIterator<E> implements OUTPUT_ITERATOR
+	{
+		ITERATOR<E> iterator;
+		MAPPER<E> mapper;
+		
+		MAPPED_TYPEIterator(ITERATOR KEY_SPECIAL_GENERIC_TYPE<E> iterator, MAPPER<E> mapper) {
+			this.iterator = iterator;
+			this.mapper = mapper;
+		}
+		
+		@Override
+		public boolean hasNext() {
+			return iterator.hasNext();
+		}
+		
+		@Override
+		public DATA_TYPE NEXT_TYPE() {
+			return mapper.APPLY(iterator.NEXT());
+		}
+		
+		@Override
+		public int skip(int amount) {
+			return iterator.skip(amount);
+		}
+	}
+	
+#endif
+#enditerate
+#endif
 	private static class FlatMappedIterator KSS_GENERIC_TYPE<E, T,[SPACE]V extends Iterable<T>> implements ObjectIterator<T>
 	{
 		ITERATOR KEY_SPECIAL_GENERIC_TYPE<E> iterator;
@@ -843,7 +973,7 @@ public class ITERATORS
 			foundNext = true;
 			while(iterator.hasNext()) {
 				if(last != null && last.hasNext()) return;
-				last = mapper.GET_VALUE(iterator.NEXT()).iterator();
+				last = mapper.apply(iterator.NEXT()).iterator();
 			}
 		}
 		
@@ -879,7 +1009,7 @@ public class ITERATORS
 			foundNext = true;
 			while(iterator.hasNext()) {
 				if(last != null && last.hasNext()) return;
-				last = ObjectIterators.wrap(mapper.GET_VALUE(iterator.NEXT()));
+				last = ObjectIterators.wrap(mapper.apply(iterator.NEXT()));
 			}
 		}
 		
@@ -898,11 +1028,79 @@ public class ITERATORS
 		}
 	}
 	
+	private static class InfiniteIterator KEY_GENERIC_TYPE implements ITERATOR KEY_GENERIC_TYPE
+	{
+		ITERATOR KEY_GENERIC_TYPE iter;
+		CollectionWrapper KEY_GENERIC_TYPE looper = COLLECTIONS.wrapper();
+		int index = 0;
+		
+		public InfiniteIterator(ITERATOR KEY_GENERIC_TYPE iter) {
+			this.iter = iter;
+		}
+		
+		@Override
+		public boolean hasNext() {
+			return true;
+		}
+
+		@Override
+		public KEY_TYPE NEXT() {
+			if(iter != null) {
+				if(iter.hasNext()) {
+					KEY_TYPE value = iter.NEXT();
+					looper.add(value);
+					return value;
+				}
+				else iter = null;
+			}
+			return looper.GET_KEY((index++) % looper.size());
+		}
+		
+#if !TYPE_OBJECT
+		@Override
+		public void forEachRemaining(CONSUMER action) { throw new UnsupportedOperationException("This is a instant deadlock, so unsupported"); }
+#endif
+		public void forEachRemaining(Consumer<? super CLASS_TYPE> action) { throw new UnsupportedOperationException("This is a instant deadlock, so unsupported"); }
+		public <E> void forEachRemaining(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) { throw new UnsupportedOperationException("This is a instant deadlock, so unsupported"); }
+	}
+	
+	private static class RepeatingIterator KEY_GENERIC_TYPE implements ITERATOR KEY_GENERIC_TYPE
+	{
+		final int repeats;
+		int index = 0;
+		ITERATOR KEY_GENERIC_TYPE iter;
+		COLLECTION KEY_GENERIC_TYPE repeater = COLLECTIONS.wrapper();
+		
+		public RepeatingIterator(ITERATOR KEY_GENERIC_TYPE iter, int repeat) {
+			this.iter = iter;
+			this.repeats = repeat;
+		}
+		
+		@Override
+		public boolean hasNext() {
+			if(iter.hasNext()) return true;
+			if(index < repeats) {
+				index++;
+				iter = repeater.iterator();
+				return iter.hasNext();
+			}
+			return false;
+		}
+
+		@Override
+		public KEY_TYPE NEXT() {
+			if(!hasNext()) throw new NoSuchElementException();
+			KEY_TYPE value = iter.NEXT();
+			if(index == 0) repeater.add(value);
+			return value;
+		}
+	}
+	
 	private static class SortedIterator KEY_GENERIC_TYPE implements ITERATOR KEY_GENERIC_TYPE
 	{
 		ITERATOR KEY_GENERIC_TYPE iterator;
 		COMPARATOR KEY_GENERIC_TYPE sorter;
-		LIST KEY_GENERIC_TYPE sortedElements = null;
+		COLLECTIONS.CollectionWrapper KEY_GENERIC_TYPE sortedElements = null;
 		int index = 0;
 		
 		public SortedIterator(ITERATOR KEY_GENERIC_TYPE iterator, COMPARATOR KEY_GENERIC_TYPE sorter) {
@@ -914,7 +1112,11 @@ public class ITERATORS
 		public boolean hasNext() {
 			if(sortedElements == null) {
 				boolean hasNext = iterator.hasNext();
-				sortedElements = hasNext ? pour(iterator) : LISTS.empty();
+				if(hasNext) {
+					sortedElements = COLLECTIONS.wrapper();
+					pour(iterator, sortedElements);
+				}
+				else sortedElements = COLLECTIONS.wrapper();
 				if(hasNext) sortedElements.unstableSort(sorter);
 			}
 			return index < sortedElements.size();
@@ -933,7 +1135,7 @@ public class ITERATORS
 #if TYPE_BOOLEAN
 		int filtered;
 #else
-		SET KEY_GENERIC_TYPE filtered = new HASH_SETBRACES();
+		COLLECTION KEY_GENERIC_TYPE filtered = COLLECTIONS.distinctWrapper();
 #endif
 		KEY_TYPE lastFound;
 		boolean foundNext = false;
@@ -994,7 +1196,7 @@ public class ITERATORS
 			if(foundNext) return;
 			while(iterator.hasNext()) {
 				lastFound = iterator.NEXT();
-				if(filter.TEST_VALUE(lastFound)) {
+				if(filter.test(lastFound)) {
 					foundNext = true;
 					break;
 				}

src/builder/resources/speiger/assets/collections/templates/utils/Lists.template

@@ -1,10 +1,19 @@
 package speiger.src.collections.PACKAGE.utils;
 
 import java.util.Collection;
+import java.util.List;
+#if IARRAY_FEATURE
 import java.util.Objects;
-import java.util.Random;
+#endif
+#if JAVA_VERSION>=17
+import java.util.random.RANDOM;
+#else
+import java.util.RANDOM;
+#endif
 import java.util.RandomAccess;
+#if IARRAY_FEATURE || TYPE_OBJECT
 import java.util.function.Consumer;
+#endif
 #if PRIMITIVES
 import java.nio.JAVA_BUFFER;
 #endif
@@ -15,8 +24,10 @@ import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
 import speiger.src.collections.PACKAGE.lists.ABSTRACT_LIST;
 import speiger.src.collections.PACKAGE.lists.LIST;
+#if INT_LIST_MODULE && !TYPE_INT
+import speiger.src.collections.ints.lists.IntList;
+#endif
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
-import speiger.src.collections.PACKAGE.utils.ARRAYS;
 import speiger.src.collections.utils.SanityChecks;
 
 /**
@@ -34,7 +45,7 @@ public class LISTS
 	 * @Type(T)
 	 * @return an empty list
 	 */
-	public static GENERIC_KEY_BRACES EmptyList KEY_GENERIC_TYPE empty() {
+	public static GENERIC_KEY_BRACES LIST KEY_GENERIC_TYPE empty() {
 #if TYPE_OBJECT
 		return (EmptyList<KEY_TYPE>)EMPTY;
 #else
@@ -59,7 +70,11 @@ public class LISTS
 	 * @return a synchronized list wrapper. If the list is implementing RandomAccess or IARRAY that is also transferred. If the List already a synchronized wrapper then it just returns itself.
 	 */
 	public static GENERIC_KEY_BRACES LIST KEY_GENERIC_TYPE synchronize(LIST KEY_GENERIC_TYPE l) {
+#if IARRAY_FEATURE
 		return l instanceof SynchronizedList ? l : (l instanceof IARRAY ? new SynchronizedArrayListBRACES(l) : (l instanceof RandomAccess ? new SynchronizedRandomAccessListBRACES(l) : new SynchronizedListBRACES(l)));
+#else
+		return l instanceof SynchronizedList ? l : (l instanceof RandomAccess ? new SynchronizedRandomAccessListBRACES(l) : new SynchronizedListBRACES(l));
+#endif
 	}
 	
 	/**
@@ -70,7 +85,11 @@ public class LISTS
 	 * @return a synchronized list wrapper. If the list is implementing RandomAccess or IARRAY that is also transferred. If the List already a synchronized wrapper then it just returns itself.
 	 */
 	public static GENERIC_KEY_BRACES LIST KEY_GENERIC_TYPE synchronize(LIST KEY_GENERIC_TYPE l, Object mutex) {
+#if IARRAY_FEATURE
 		return l instanceof SynchronizedList ? l : (l instanceof IARRAY ? new SynchronizedArrayListBRACES(l, mutex) : (l instanceof RandomAccess ? new SynchronizedRandomAccessListBRACES(l, mutex) : new SynchronizedListBRACES(l, mutex)));
+#else
+		return l instanceof SynchronizedList ? l : (l instanceof RandomAccess ? new SynchronizedRandomAccessListBRACES(l, mutex) : new SynchronizedListBRACES(l, mutex));
+#endif
 	}
 	
 	/**
@@ -91,6 +110,7 @@ public class LISTS
 	 */
 	public static GENERIC_KEY_BRACES LIST KEY_GENERIC_TYPE reverse(LIST KEY_GENERIC_TYPE list) {
 		int size = list.size();
+#if IARRAY_FEATURE
 		if(list instanceof IARRAY) {
 			IARRAY KEY_GENERIC_TYPE array = (IARRAY KEY_GENERIC_TYPE)list;
 #if TYPE_OBJECT
@@ -105,6 +125,7 @@ public class LISTS
 			return list;
 #endif
 		}
+#endif
 		if(list instanceof RandomAccess) {
 			for (int i = 0, mid = size >> 1, j = size - 1; i < mid; i++, j--) {
 				KEY_TYPE t = list.GET_KEY(i);
@@ -140,8 +161,9 @@ public class LISTS
 	 * @Type(T)
 	 * @return the input list
 	 */
-	public static GENERIC_KEY_BRACES LIST KEY_GENERIC_TYPE shuffle(LIST KEY_GENERIC_TYPE list, Random random) {
+	public static GENERIC_KEY_BRACES LIST KEY_GENERIC_TYPE shuffle(LIST KEY_GENERIC_TYPE list, RANDOM random) {
 		int size = list.size();
+#if IARRAY_FEATURE
 		if(list instanceof IARRAY) {
 			IARRAY KEY_GENERIC_TYPE array = (IARRAY KEY_GENERIC_TYPE)list;
 #if TYPE_OBJECT
@@ -163,7 +185,8 @@ public class LISTS
 #endif
 			return list;
 		}
-		for(int i = list.size(); i-- != 0;) {
+#endif
+		for(int i = size; i-- != 0;) {
 			int p = random.nextInt(i + 1);
 			KEY_TYPE t = list.GET_KEY(i);
 			list.set(i, list.GET_KEY(p));
@@ -230,6 +253,7 @@ public class LISTS
 		public SingletonList KEY_GENERIC_TYPE copy() { return new SingletonListBRACES(element); }
 	}
 	
+#if IARRAY_FEATURE
 	private static class SynchronizedArrayList KEY_GENERIC_TYPE extends SynchronizedList KEY_GENERIC_TYPE implements IARRAY KEY_GENERIC_TYPE
 	{
 		IARRAY KEY_GENERIC_TYPE l;
@@ -270,6 +294,7 @@ public class LISTS
 		}
 	}
 	
+#endif
 	private static class SynchronizedRandomAccessList KEY_GENERIC_TYPE extends SynchronizedList KEY_GENERIC_TYPE implements RandomAccess 
 	{
 		SynchronizedRandomAccessList(LIST KEY_GENERIC_TYPE l) {
@@ -356,7 +381,7 @@ public class LISTS
 		
 #endif
 		@Override
-		public void addElements(int from, KEY_TYPE[] a, int offset, int length) { synchronized(mutex) { addElements(from, a, offset, length); } }
+		public void addElements(int from, KEY_TYPE[] a, int offset, int length) { synchronized(mutex) { l.addElements(from, a, offset, length); } }
 		
 		@Override
 		public KEY_TYPE[] getElements(int from, KEY_TYPE[] a, int offset, int length) { synchronized(mutex) { return l.getElements(from, a, offset, length); } }
@@ -386,11 +411,28 @@ public class LISTS
 			return l.listIterator(index);
 		}
 		
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE indexedIterator(int...indecies) {
+			return l.indexedIterator(indecies);
+		}
+		
+#if INT_LIST_MODULE
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE indexedIterator(IntList indecies) {
+			return l.indexedIterator(indecies);
+		}
+		
+#endif
 		@Override
 		public LIST KEY_GENERIC_TYPE subList(int from, int to) {
 			return LISTS.synchronize(l.subList(from, to));
 		}
 		
+		@Override
+		public LIST KEY_GENERIC_TYPE reversed() {
+			return LISTS.synchronize(l.reversed());
+		}
+		
 		@Override
 		public void size(int size) { synchronized(mutex) { l.size(size); } }
 		
@@ -508,11 +550,28 @@ public class LISTS
 			return ITERATORS.unmodifiable(l.listIterator(index));
 		}
 		
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE indexedIterator(int...indecies) {
+			return ITERATORS.unmodifiable(l.indexedIterator(indecies));
+		}
+		
+#if INT_LIST_MODULE
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE indexedIterator(IntList indecies) {
+			return ITERATORS.unmodifiable(l.indexedIterator(indecies));
+		}
+		
+#endif
 		@Override
 		public LIST KEY_GENERIC_TYPE subList(int from, int to) {
 			return LISTS.unmodifiable(l.subList(from, to));
 		}
 		
+		@Override
+		public LIST KEY_GENERIC_TYPE reversed() {
+			return LISTS.unmodifiable(l.reversed());
+		}
+		
 		@Override
 		public void size(int size) { throw new UnsupportedOperationException(); }
 		
@@ -601,9 +660,34 @@ public class LISTS
 			return ITERATORS.empty();
 		}
 		
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE indexedIterator(int...indecies) {
+			return ITERATORS.empty(); 
+		}
+		
+#if INT_LIST_MODULE
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE indexedIterator(IntList indecies) {
+			return ITERATORS.empty(); 
+		}
+		
+#endif
+		@Override
+		public int hashCode() { return 1; }
+		
+		@Override
+		public boolean equals(Object o) {
+			if(o == this) return true;
+			if(!(o instanceof List)) return false;
+			return ((List<?>)o).isEmpty();
+		}
+		
 		@Override
 		public LIST KEY_GENERIC_TYPE subList(int from, int to) { throw new UnsupportedOperationException(); }
 		
+		@Override
+		public LIST KEY_GENERIC_TYPE reversed() { return this; }
+		
 		@Override
 		public void size(int size) { throw new UnsupportedOperationException(); }
 		

src/builder/resources/speiger/assets/collections/templates/utils/PriorityQueues.template

@@ -4,19 +4,33 @@ package speiger.src.collections.PACKAGE.utils;
 import java.util.Collection;
 import java.util.Comparator;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
+#endif
+#if JDK_FUNCTION
+import java.util.function.PREDICATE;
+#endif
+#if JDK_TYPE
+import java.util.OPTIONAL;
 #endif
-
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
+#if DEQUEUE_FEATURE
 import speiger.src.collections.PACKAGE.queues.PRIORITY_DEQUEUE;
+#endif
 import speiger.src.collections.PACKAGE.queues.PRIORITY_QUEUE;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
+#if !JDK_FUNCTION
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+#endif
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 
 /**
@@ -46,6 +60,7 @@ public class PRIORITY_QUEUES
 		return queue instanceof SynchronizedPriorityQueue ? (SynchronizedPriorityQueue KEY_GENERIC_TYPE)queue : new SynchronizedPriorityQueueBRACES(queue, mutex);
 	}
 	
+#if DEQUEUE_FEATURE
 	/**
 	 * Returns a synchronized PriorityDequeue instance based on the instance given.
 	 * @param dequeue that should be synchronized
@@ -67,6 +82,7 @@ public class PRIORITY_QUEUES
 		return dequeue instanceof SynchronizedPriorityDequeue ? (SynchronizedPriorityDequeue KEY_GENERIC_TYPE)dequeue : new SynchronizedPriorityDequeueBRACES(dequeue, mutex);
 	}
 	
+#endif
 	/**
 	 * Wrapper class for synchronization
 	 * @Type(T)
@@ -107,6 +123,8 @@ public class PRIORITY_QUEUES
 		@Override
 		public KEY_TYPE peek(int index) { synchronized(mutex) { return queue.peek(index); } }
 		@Override
+		public boolean contains(KEY_TYPE e) { synchronized(mutex) { return queue.contains(e); } }
+		@Override
 		public boolean removeFirst(KEY_TYPE e) { synchronized(mutex) { return queue.removeFirst(e); } }
 		@Override
 		public boolean removeLast(KEY_TYPE e) { synchronized(mutex) { return queue.removeLast(e); } }
@@ -129,11 +147,20 @@ public class PRIORITY_QUEUES
 		@Override
 		public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return queue.matchesAll(filter); } }
 		@Override
-		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return queue.findFirst(filter); } }
+		public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return queue.findFirst(filter); } }
+		#if TYPE_OBJECT
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) { synchronized(mutex) { return queue.reduce(identity, operator); } }
+#else
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) { synchronized(mutex) { return queue.reduce(identity, operator); } }
+#endif
+		@Override
+		public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) { synchronized(mutex) { return queue.reduce(operator); } }
 		@Override
 		public int count(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return queue.count(filter); } }
 	}
 	
+#if DEQUEUE_FEATURE
 	/**
 	 * Wrapper class for synchronization
 	 * @Type(T)
@@ -166,4 +193,5 @@ public class PRIORITY_QUEUES
 		@Override
 		public PRIORITY_DEQUEUE KEY_GENERIC_TYPE copy() { synchronized(mutex) { return dequeue.copy(); } }
 	}
+#endif
 }

src/builder/resources/speiger/assets/collections/templates/utils/Sets.template

@@ -1,31 +1,31 @@
 package speiger.src.collections.PACKAGE.utils;
 
 import java.util.NoSuchElementException;
-#if TYPE_BOOLEAN
-import speiger.src.collections.booleans.collections.BooleanIterator;
-import speiger.src.collections.booleans.sets.AbstractBooleanSet;
-import speiger.src.collections.booleans.sets.BooleanSet;
-import speiger.src.collections.booleans.utils.BooleanCollections.EmptyCollection;
-#else
-#if TYPE_OBJECT
+import java.util.Set;
+#if TYPE_OBJECT && SORTED_SET_FEATURE
 import java.util.Comparator;
 
 #endif
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
-#if !TYPE_OBJECT
+#if !TYPE_OBJECT && SORTED_SET_FEATURE
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if SORTED_SET_FEATURE
 import speiger.src.collections.PACKAGE.sets.NAVIGABLE_SET;
+#endif
 import speiger.src.collections.PACKAGE.sets.ABSTRACT_SET;
 import speiger.src.collections.PACKAGE.sets.SET;
+#if ORDERED_SET_FEATURE
 import speiger.src.collections.PACKAGE.sets.ORDERED_SET;
+#endif
+#if SORTED_SET_FEATURE
 import speiger.src.collections.PACKAGE.sets.SORTED_SET;
+#endif
 import speiger.src.collections.PACKAGE.utils.COLLECTIONS.EmptyCollection;
 import speiger.src.collections.PACKAGE.utils.COLLECTIONS.SynchronizedCollection;
 import speiger.src.collections.PACKAGE.utils.COLLECTIONS.UnmodifiableCollection;
 import speiger.src.collections.utils.ITrimmable;
-#endif
 
 /**
  * A Helper class for sets
@@ -50,7 +50,6 @@ public class SETS
 #endif
 	}
 	
-#if !TYPE_BOOLEAN
 	/**
 	 * Creates a Synchronized set while preserving the ITrimmable interface
 	 * @param s the set that should be synchronized
@@ -74,6 +73,7 @@ public class SETS
 		return s instanceof SynchronizedSet ? s : (s instanceof ITrimmable ? new SynchronizedTrimSetBRACES(s, mutex) : new SynchronizedSetBRACES(s, mutex));
 	}
 	
+#if SORTED_SET_FEATURE
 	/**
 	 * Creates a Synchronized SortedSet while preserving the ITrimmable interface
 	 * @param s the set that should be synchronized
@@ -97,6 +97,8 @@ public class SETS
 		return s instanceof SynchronizedSortedSet ? s : (s instanceof ITrimmable ? new SynchronizedSortedTrimSetBRACES(s, mutex) : new SynchronizedSortedSetBRACES(s, mutex));
 	}
 	
+#endif
+#if ORDERED_SET_FEATURE
 	/**
 	 * Creates a Synchronized OrderedSet while preserving the ITrimmable interface
 	 * @param s the set that should be synchronized
@@ -120,6 +122,8 @@ public class SETS
 		return s instanceof SynchronizedOrderedSet ? s : (s instanceof ITrimmable ? new SynchronizedOrderedTrimSetBRACES(s, mutex) : new SynchronizedOrderedSetBRACES(s, mutex));
 	}
 	
+#endif
+#if SORTED_SET_FEATURE
 	/**
 	 * Creates a Synchronized NavigableSet while preserving the ITrimmable interface
 	 * @param s the set that should be synchronized
@@ -143,6 +147,7 @@ public class SETS
 		return s instanceof SynchronizedNavigableSet ? s : (s instanceof ITrimmable ? new SynchronizedNavigableTrimSetBRACES(s, mutex) : new SynchronizedNavigableSetBRACES(s, mutex));
 	}
 	
+#endif
 	/**
 	 * Creates Unmodifyable Set wrapper
 	 * @param s set that should be made unmodifiable
@@ -153,6 +158,7 @@ public class SETS
 		return s instanceof UnmodifiableSet ? s : new UnmodifiableSetBRACES(s);
 	}
 	
+#if SORTED_SET_FEATURE
 	/**
 	 * Creates Unmodifyable SortedSet wrapper
 	 * @param s sortedSet that should be made unmodifiable
@@ -163,6 +169,8 @@ public class SETS
 		return s instanceof UnmodifiableSortedSet ? s : new UnmodifiableSortedSetBRACES(s);
 	}
 	
+#endif
+#if ORDERED_SET_FEATURE
 	/**
 	 * Creates Unmodifyable OrderedSet wrapper
 	 * @param s OrderedSet that should be made unmodifiable
@@ -173,6 +181,8 @@ public class SETS
 		return s instanceof UnmodifiableOrderedSet ? s : new UnmodifiableOrderedSetBRACES(s);
 	}
 	
+#endif
+#if SORTED_SET_FEATURE
 	/**
 	 * Creates Unmodifyable NavigableSet wrapper
 	 * @param s navigableSet that should be made unmodifiable
@@ -242,11 +252,18 @@ public class SETS
 		@Override
 		public KEY_TYPE addOrGet(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 #endif
+		@Override
+		public boolean equals(Object o) {
+			if(o == this) return true;
+			if(!(o instanceof Set)) return false;
+			return ((Set<?>)o).isEmpty();
+		}
+		
 		@Override
 		public EmptySet KEY_GENERIC_TYPE copy() { return this; }
 	}
 	
-#if !TYPE_BOOLEAN
+#if SORTED_SET_FEATURE
 	private static class UnmodifiableNavigableSet KEY_GENERIC_TYPE extends UnmodifiableSortedSet KEY_GENERIC_TYPE implements NAVIGABLE_SET KEY_GENERIC_TYPE
 	{
 		NAVIGABLE_SET KEY_GENERIC_TYPE n;
@@ -259,25 +276,38 @@ public class SETS
 #if !TYPE_OBJECT
 		@Override
 		public boolean contains(KEY_TYPE o) { return n.contains(o); }
+		@Override
+		@SuppressWarnings("deprecation")
+		public CLASS_TYPE lower(CLASS_TYPE e) { return n.lower(e); }
+		@Override
+		@SuppressWarnings("deprecation")
+		public CLASS_TYPE floor(CLASS_TYPE e) { return n.floor(e); }
+		@Override
+		@SuppressWarnings("deprecation")
+		public CLASS_TYPE ceiling(CLASS_TYPE e) { return n.ceiling(e); }
+		@Override
+		@SuppressWarnings("deprecation")
+		public CLASS_TYPE higher(CLASS_TYPE e) { return n.higher(e); }
 		
 #endif		
 		@Override
 		@Deprecated
 		public boolean contains(Object o) { return n.contains(o); }
-		
 		@Override
 		public KEY_TYPE lower(KEY_TYPE e) { return n.lower(e); }
-		
 		@Override
 		public KEY_TYPE floor(KEY_TYPE e) { return n.floor(e); }
-		
 		@Override
 		public KEY_TYPE ceiling(KEY_TYPE e) { return n.ceiling(e); }
-		
 		@Override
 		public KEY_TYPE higher(KEY_TYPE e) { return n.higher(e); }
 		
 #if !TYPE_OBJECT
+		@Override
+		public CLASS_TYPE pollFirst() { throw new UnsupportedOperationException(); }
+		@Override
+		public CLASS_TYPE pollLast() { throw new UnsupportedOperationException(); }
+
 		@Override
 		public void setDefaultMaxValue(KEY_TYPE e) { throw new UnsupportedOperationException(); }
 		
@@ -292,7 +322,7 @@ public class SETS
 		
 #endif
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE copy() { return n.copy(); }
 		
 		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, boolean fromInclusive, KEY_TYPE toElement, boolean toInclusive) { return SETS.unmodifiable(n.subSet(fromElement, fromInclusive, toElement, toInclusive)); }
@@ -319,6 +349,8 @@ public class SETS
 		public NAVIGABLE_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement) { return SETS.unmodifiable(n.tailSet(fromElement)); }
 	}
 	
+#endif
+#if ORDERED_SET_FEATURE
 	private static class UnmodifiableOrderedSet KEY_GENERIC_TYPE extends UnmodifiableSet KEY_GENERIC_TYPE implements ORDERED_SET KEY_GENERIC_TYPE
 	{
 		ORDERED_SET KEY_GENERIC_TYPE s;
@@ -328,6 +360,10 @@ public class SETS
 			s = c;
 		}
 		
+		@Override
+		public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -339,19 +375,23 @@ public class SETS
 		@Override
 		public BI_ITERATOR KEY_GENERIC_TYPE iterator() { return ITERATORS.unmodifiable(s.iterator()); }
 		@Override
+		public BI_ITERATOR KEY_GENERIC_TYPE reverseIterator() { return ITERATORS.unmodifiable(s.reverseIterator()); }
+		@Override
 		public BI_ITERATOR KEY_GENERIC_TYPE iterator(KEY_TYPE fromElement) { return ITERATORS.unmodifiable(s.iterator(fromElement)); }
 		@Override
 		public ORDERED_SET KEY_GENERIC_TYPE copy() { return s.copy(); }
 		@Override
-		public KEY_TYPE FIRST_KEY() { return s.FIRST_KEY(); }
+		public KEY_TYPE GET_FIRST_KEY() { return s.GET_FIRST_KEY(); }
 		@Override
-		public KEY_TYPE POLL_FIRST_KEY() { throw new UnsupportedOperationException(); }
+		public KEY_TYPE REMOVE_FIRST_KEY() { throw new UnsupportedOperationException(); }
 		@Override
-		public KEY_TYPE LAST_KEY() { return s.LAST_KEY(); }
+		public KEY_TYPE GET_LAST_KEY() { return s.GET_LAST_KEY(); }
 		@Override
-		public KEY_TYPE POLL_LAST_KEY() { throw new UnsupportedOperationException(); }
+		public KEY_TYPE REMOVE_LAST_KEY() { throw new UnsupportedOperationException(); }
 	}
 	
+#endif
+#if SORTED_SET_FEATURE
 	private static class UnmodifiableSortedSet KEY_GENERIC_TYPE extends UnmodifiableSet KEY_GENERIC_TYPE implements SORTED_SET KEY_GENERIC_TYPE
 	{
 		SORTED_SET KEY_GENERIC_TYPE s;
@@ -385,6 +425,7 @@ public class SETS
 		public KEY_TYPE POLL_LAST_KEY() { throw new UnsupportedOperationException(); }
 	}
 	
+#endif
 	/**
 	 * Unmodifyable Set wrapper that helps is used with unmodifyableSet function
 	 * @Type(T)
@@ -413,6 +454,7 @@ public class SETS
 #endif
 	}
 	
+#if SORTED_SET_FEATURE
 	private static class SynchronizedNavigableTrimSet KEY_GENERIC_TYPE extends SynchronizedNavigableSet KEY_GENERIC_TYPE implements ITrimmable
 	{
 		ITrimmable trim;
@@ -455,27 +497,33 @@ public class SETS
 #if !TYPE_OBJECT
 		@Override
 		public boolean contains(KEY_TYPE o) { synchronized(mutex) { return n.contains(o); } }
-		
+		@Override
+		@SuppressWarnings("deprecation")
+		public CLASS_TYPE lower(CLASS_TYPE e) { synchronized(mutex) { return n.lower(e); } }
+		@Override
+		@SuppressWarnings("deprecation")
+		public CLASS_TYPE floor(CLASS_TYPE e) { synchronized(mutex) { return n.floor(e); } }
+		@Override
+		@SuppressWarnings("deprecation")
+		public CLASS_TYPE ceiling(CLASS_TYPE e) { synchronized(mutex) { return n.ceiling(e); } }
+		@Override
+		@SuppressWarnings("deprecation")
+		public CLASS_TYPE higher(CLASS_TYPE e) { synchronized(mutex) { return n.higher(e); } }
 #endif
 		@Override
 		public KEY_TYPE lower(KEY_TYPE e) { synchronized(mutex) { return n.lower(e); } }
-		
 		@Override
 		public KEY_TYPE floor(KEY_TYPE e) { synchronized(mutex) { return n.floor(e); } }
-		
 		@Override
 		public KEY_TYPE ceiling(KEY_TYPE e) { synchronized(mutex) { return n.ceiling(e); } }
-		
 		@Override
 		public KEY_TYPE higher(KEY_TYPE e) { synchronized(mutex) { return n.higher(e); } }
 		
 #if !TYPE_OBJECT
 		@Override
 		public void setDefaultMaxValue(KEY_TYPE e) { synchronized(mutex) { n.setDefaultMaxValue(e); } }
-		
 		@Override
 		public KEY_TYPE getDefaultMaxValue() { synchronized(mutex) { return n.getDefaultMaxValue(); } }
-		
 		@Override
 		public void setDefaultMinValue(KEY_TYPE e) { synchronized(mutex) { n.setDefaultMinValue(e); } }
 		
@@ -570,6 +618,8 @@ public class SETS
 		public KEY_TYPE POLL_LAST_KEY() { synchronized(mutex) { return s.POLL_LAST_KEY(); } }
 	}
 	
+#endif
+#if ORDERED_SET_FEATURE
 	private static class SynchronizedOrderedTrimSet KEY_GENERIC_TYPE extends SynchronizedOrderedSet KEY_GENERIC_TYPE implements ITrimmable
 	{
 		ITrimmable trim;
@@ -605,6 +655,10 @@ public class SETS
 			s = c;
 		}
 		
+		@Override
+		public void addFirst(KEY_TYPE o) { synchronized(mutex) { s.addFirst(o); } }
+		@Override
+		public void addLast(KEY_TYPE o) { synchronized(mutex) { s.addLast(o); } }
 		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { synchronized(mutex) { return s.addAndMoveToFirst(o); } }
 		@Override
@@ -616,19 +670,22 @@ public class SETS
 		@Override
 		public BI_ITERATOR KEY_GENERIC_TYPE iterator() { synchronized(mutex) { return s.iterator(); } }
 		@Override
+		public BI_ITERATOR KEY_GENERIC_TYPE reverseIterator() { synchronized(mutex) { return s.reverseIterator(); } }
+		@Override
 		public BI_ITERATOR KEY_GENERIC_TYPE iterator(KEY_TYPE fromElement) { synchronized(mutex) { return s.iterator(fromElement); } }
 		@Override
 		public ORDERED_SET KEY_GENERIC_TYPE copy() { synchronized(mutex) { return s.copy(); } }
 		@Override
-		public KEY_TYPE FIRST_KEY() { synchronized(mutex) { return s.FIRST_KEY(); } }
+		public KEY_TYPE GET_FIRST_KEY() { synchronized(mutex) { return s.GET_FIRST_KEY(); } }
 		@Override
-		public KEY_TYPE POLL_FIRST_KEY() { synchronized(mutex) { return s.POLL_FIRST_KEY(); } }
+		public KEY_TYPE REMOVE_FIRST_KEY() { synchronized(mutex) { return s.REMOVE_FIRST_KEY(); } }
 		@Override
-		public KEY_TYPE LAST_KEY() { synchronized(mutex) { return s.LAST_KEY(); } }
+		public KEY_TYPE GET_LAST_KEY() { synchronized(mutex) { return s.GET_LAST_KEY(); } }
 		@Override
-		public KEY_TYPE POLL_LAST_KEY() { synchronized(mutex) { return s.POLL_LAST_KEY(); } }
+		public KEY_TYPE REMOVE_LAST_KEY() { synchronized(mutex) { return s.REMOVE_LAST_KEY(); } }
 	}
 	
+#endif
 	private static class SynchronizedTrimSet KEY_GENERIC_TYPE extends SynchronizedSet KEY_GENERIC_TYPE implements ITrimmable
 	{
 		ITrimmable trim;
@@ -677,5 +734,4 @@ public class SETS
 		public boolean remove(KEY_TYPE o) { synchronized(mutex) { return s.remove(o); } }
 #endif
 	}
-#endif
 }

src/builder/resources/speiger/assets/collections/templates/utils/Strategy.template

@@ -1,5 +1,7 @@
 package speiger.src.collections.PACKAGE.utils;
 
+import java.util.Objects;
+
 /**
  * A Type Specific Strategy class that allows to give control hashcode generation and equals comparason for maps
  * @Type(T)
@@ -19,6 +21,17 @@ public interface STRATEGY KEY_GENERIC_TYPE
 	public static GENERIC_KEY_BRACES STRATEGY KEY_GENERIC_TYPE identityStrategy() { return (STRATEGY<KEY_TYPE>)IDENTITY; }
 	
 #endif
+	/**
+	 * Normal Strategy
+	 */
+	public static final STRATEGY NO_GENERIC_TYPE NORMAL = new NormalStrategyBRACES();
+	
+	/**
+	 * @Type(T)
+	 * @return a Normal Strategy that is behaving exactly like the normal Hash Strategy in the Hash Collections
+	 */
+	public static GENERIC_KEY_BRACES STRATEGY KEY_GENERIC_TYPE normalStrategy() { return (STRATEGY KEY_GENERIC_TYPE)NORMAL; }
+	
 	/**
 	 * Type Specific HashCode function
 	 * @param o the element that the hashcode is requested for (if object may be null)
@@ -47,5 +60,18 @@ public interface STRATEGY KEY_GENERIC_TYPE
 		@Override
 		public boolean equals(KEY_TYPE key, KEY_TYPE value) { return key == value; }
 	}
+	
 #endif
+	/**
+	 * A Strategy that simulates the normal Hash Collection Behavior if you want to use Hash Control Collections to replace normal ones.
+	 * Only real reason to do that is you have to use this and want to get rid of implementations.
+	 * @Type(T)
+	 */
+	public static class NormalStrategy KEY_GENERIC_TYPE implements STRATEGY KEY_GENERIC_TYPE
+	{
+		@Override
+		public int hashCode(KEY_TYPE o) { return KEY_TO_HASH(o); }
+		@Override
+		public boolean equals(KEY_TYPE key, KEY_TYPE value) { return EQUALS_KEY_TYPE(key, value); }
+	}
 }

src/builder/resources/speiger/assets/collections/templates/utils/maps/Maps.template

@@ -3,9 +3,9 @@ package speiger.src.collections.PACKAGE.utils.maps;
 #if !TYPE_BOOLEAN
 import java.util.Map;
 import java.util.Objects;
-#if TYPE_OBJECT
+#if TYPE_OBJECT && SORTED_MAP_FEATURE
 import java.util.Comparator;
-#else
+#else if !TYPE_OBJECT
 import java.util.function.BiConsumer;
 import java.util.function.BiFunction;
 #endif
@@ -14,39 +14,56 @@ import java.util.function.Consumer;
 #if !TYPE_OBJECT && !TYPE_BOOLEAN
 import java.util.function.Function;
 #endif
+#if VALUE_BOOLEAN && JDK_TYPE
+import java.util.function.PREDICATE;
+#endif
 
 import speiger.src.collections.objects.collections.ObjectIterable;
 import speiger.src.collections.objects.collections.ObjectIterator;
 import speiger.src.collections.objects.sets.ObjectSet;
-#if !TYPE_BOOLEAN
+import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
+import speiger.src.collections.objects.utils.ObjectIterators;
 import speiger.src.collections.objects.utils.ObjectSets;
 #if !TYPE_OBJECT
+import speiger.src.collections.objects.sets.ObjectOrderedSet;
+#if SORTED_MAP_FEATURE
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
+#endif
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
+#if !VALUE_BOOLEAN || !JDK_TYPE
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
+#endif
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.maps.abstracts.ABSTRACT_MAP;
-#endif
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
-#if !TYPE_BOOLEAN
+#if SORTED_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.interfaces.NAVIGABLE_MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.SORTED_MAP;
+#endif
+#if ORDERED_MAP_FEATURE
 import speiger.src.collections.PACKAGE.maps.interfaces.ORDERED_MAP;
+#endif
+#if SORTED_MAP_FEATURE
 import speiger.src.collections.PACKAGE.sets.NAVIGABLE_SET;
+import speiger.src.collections.PACKAGE.sets.SORTED_SET;
+#endif
+#if ORDERED_MAP_FEATURE
+import speiger.src.collections.PACKAGE.sets.ORDERED_SET;
+#endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.sets.SET;
 import speiger.src.collections.PACKAGE.utils.SETS;
 #endif
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
+#if ORDERED_MAP_FEATURE
+import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ORDERED_COLLECTION;
+#endif
 #if !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
 #endif
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_SUPPLIER;
 import speiger.src.collections.VALUE_PACKAGE.utils.VALUE_COLLECTIONS;
-#if !SAME_TYPE && !VALUE_OBJECT
-import speiger.src.collections.VALUE_PACKAGE.utils.VALUE_SETS;
-#endif
-#endif
 
 /**
  * A Helper class that provides you with Singleton/Empty/Synchronized/Unmodifyable Maps
@@ -117,8 +134,6 @@ public class MAPS
 		else entries.forEach(action);
 	}
 	
-#if !TYPE_BOOLEAN
-	
 	/**
 	 * Helper function that creates a Helper wrapper to synchronize access into the map.
 	 * @param map the map that should be synchronized
@@ -141,6 +156,7 @@ public class MAPS
 	 */
 	public static GENERIC_KEY_VALUE_BRACES MAP KEY_VALUE_GENERIC_TYPE synchronize(MAP KEY_VALUE_GENERIC_TYPE map, Object mutex) { return map instanceof SynchronizedMap ? map : new SynchronizedMapKV_BRACES(map, mutex); }
 	
+#if SORTED_MAP_FEATURE
 	/**
 	 * Helper function that creates a Helper wrapper to synchronize access into the SortedMap.
 	 * @param map the SortedMap that should be synchronized
@@ -163,6 +179,8 @@ public class MAPS
 	 */
 	public static GENERIC_KEY_VALUE_BRACES SORTED_MAP KEY_VALUE_GENERIC_TYPE synchronize(SORTED_MAP KEY_VALUE_GENERIC_TYPE map, Object mutex) { return map instanceof SynchronizedSortedMap ? map : new SynchronizedSortedMapKV_BRACES(map, mutex); }
 	
+#endif
+#if ORDERED_MAP_FEATURE
 	/**
 	 * Helper function that creates a Helper wrapper to synchronize access into the OrderedMap.
 	 * @param map the OrderedMap that should be synchronized
@@ -185,6 +203,8 @@ public class MAPS
 	 */
 	public static GENERIC_KEY_VALUE_BRACES ORDERED_MAP KEY_VALUE_GENERIC_TYPE synchronize(ORDERED_MAP KEY_VALUE_GENERIC_TYPE map, Object mutex) { return map instanceof SynchronizedOrderedMap ? map : new SynchronizedOrderedMapKV_BRACES(map, mutex); }
 	
+#endif
+#if SORTED_MAP_FEATURE
 	/**
 	 * Helper function that creates a Helper wrapper to synchronize access into the NavigableMap.
 	 * @param map the NavigableMap that should be synchronized
@@ -207,6 +227,7 @@ public class MAPS
 	 */
 	public static GENERIC_KEY_VALUE_BRACES NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE synchronize(NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE map, Object mutex) { return map instanceof SynchronizedNavigableMap ? map : new SynchronizedNavigableMapKV_BRACES(map, mutex); }
 	
+#endif
 	/**
 	 * A Helper function that creates a Helper wrapper to only allow Read Access into the Map
 	 * @param map the map that should be made Unmodifiable
@@ -217,6 +238,7 @@ public class MAPS
 	 */
 	public static GENERIC_KEY_VALUE_BRACES MAP KEY_VALUE_GENERIC_TYPE unmodifiable(MAP KEY_VALUE_GENERIC_TYPE map) { return map instanceof UnmodifyableMap ? map : new UnmodifyableMapKV_BRACES(map); }
 	
+#if ORDERED_MAP_FEATURE
 	/**
 	 * A Helper function that creates a Helper wrapper to only allow Read Access into the OrderedMap
 	 * @param map the OrderedMap that should be made Unmodifiable
@@ -227,6 +249,8 @@ public class MAPS
 	 */
 	public static GENERIC_KEY_VALUE_BRACES ORDERED_MAP KEY_VALUE_GENERIC_TYPE unmodifiable(ORDERED_MAP KEY_VALUE_GENERIC_TYPE map) { return map instanceof UnmodifyableOrderedMap ? map : new UnmodifyableOrderedMapKV_BRACES(map); }
 	
+#endif
+#if SORTED_MAP_FEATURE
 	/**
 	 * A Helper function that creates a Helper wrapper to only allow Read Access into the SortedMap
 	 * @param map the SortedMap that should be made Unmodifiable
@@ -247,6 +271,7 @@ public class MAPS
 	 */
 	public static GENERIC_KEY_VALUE_BRACES NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE unmodifiable(NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE map) { return map instanceof UnmodifyableNavigableMap ? map : new UnmodifyableNavigableMapKV_BRACES(map); }
 	
+#endif
 	/**
 	 * A Helper function that creates a Unmodifyable Entry
 	 * @param entry the Entry that should be made unmodifiable
@@ -254,7 +279,7 @@ public class MAPS
 	 * @ValueType(V)
 	 * @return a Unmodifyable Entry
 	 */
-	public static GENERIC_KEY_VALUE_BRACES MAP.Entry KEY_VALUE_GENERIC_TYPE unmodifiable(MAP.Entry KEY_VALUE_GENERIC_TYPE entry) { return entry instanceof UnmodifyableEntry ? entry : new UnmodifyableEntryKV_BRACES(entry); }
+	public static GENERIC_KEY_VALUE_BRACES MAP.Entry KEY_VALUE_GENERIC_TYPE unmodifiable(MAP.Entry KEY_VALUE_GENERIC_TYPE entry) { return entry instanceof UnmodifyableEntry ? entry : (entry == null ? null : new UnmodifyableEntryKV_BRACES(entry)); }
 	/**
 	 * A Helper function that creates a Unmodifyable Entry
 	 * @param entry the Entry that should be made unmodifiable
@@ -262,7 +287,7 @@ public class MAPS
 	 * @ValueType(V)
 	 * @return a Unmodifyable Entry
 	 */
-	public static GENERIC_KEY_VALUE_BRACES MAP.Entry KEY_VALUE_GENERIC_TYPE unmodifiable(Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE> entry) { return entry instanceof UnmodifyableEntry ? (UnmodifyableEntry KEY_VALUE_GENERIC_TYPE)entry : new UnmodifyableEntryKV_BRACES(entry); }
+	public static GENERIC_KEY_VALUE_BRACES MAP.Entry KEY_VALUE_GENERIC_TYPE unmodifiable(Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE> entry) { return entry instanceof UnmodifyableEntry ? (UnmodifyableEntry KEY_VALUE_GENERIC_TYPE)entry : (entry == null ? null : new UnmodifyableEntryKV_BRACES(entry)); }
 	
 	/**
 	 * Creates a Singleton map from the provided values.
@@ -316,6 +341,28 @@ public class MAPS
 		@Override
 		public VALUE_TYPE getOrDefault(KEY_TYPE key, VALUE_TYPE defaultValue) { return EQUALS_KEY_TYPE(key, this.key) ? value : defaultValue; }
 #endif
+		@Override
+		public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { throw new UnsupportedOperationException(); }
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { throw new UnsupportedOperationException(); }
+#endif
+		@Override
+		public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public void BULK_MERGE(MAP KEY_VALUE_GENERIC_TYPE m, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
 		@Override
 		public SingletonMap KEY_VALUE_GENERIC_TYPE copy() { return new SingletonMapKV_BRACES(key, value); }
 		@Override
@@ -326,7 +373,7 @@ public class MAPS
 		
 		@Override
 		public VALUE_COLLECTION VALUE_GENERIC_TYPE values() { 
-			if(values == null) values = VALUE_SETS.singleton(value);
+			if(values == null) values = VALUE_COLLECTIONS.singleton(value);
 			return values;
 		}
 		@Override
@@ -364,8 +411,30 @@ public class MAPS
 		public VALUE_TYPE GET_VALUE(KEY_TYPE key) { return getDefaultReturnValue(); }
 #if !TYPE_OBJECT || !VALUE_OBJECT
 		@Override
-		public VALUE_TYPE getOrDefault(KEY_TYPE key, VALUE_TYPE defaultValue) { return EMPTY_VALUE; }
+		public VALUE_TYPE getOrDefault(KEY_TYPE key, VALUE_TYPE defaultValue) { return defaultValue; }
 #endif
+		@Override
+		public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { throw new UnsupportedOperationException(); }
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { throw new UnsupportedOperationException(); }
+#endif
+		@Override
+		public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public void BULK_MERGE(MAP KEY_VALUE_GENERIC_TYPE m, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
 		@Override
 		public SET KEY_GENERIC_TYPE keySet() { return SETS.empty(); }
 		@Override
@@ -395,6 +464,7 @@ public class MAPS
 		public void set(KEY_TYPE key, VALUE_TYPE value) { throw new UnsupportedOperationException(); }
 	}
 	
+#if SORTED_MAP_FEATURE
 	/**
 	 * The Unmodifyable Navigable Map implementation that is sued for the unmodifyableMap function
 	 * @Type(T)
@@ -409,10 +479,12 @@ public class MAPS
 		}
 		
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE descendingMap() { return MAPS.synchronize(map.descendingMap()); }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE descendingMap() { return MAPS.unmodifiable(map.descendingMap()); }
 		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE navigableKeySet() { return SETS.unmodifiable(map.navigableKeySet()); }
 		@Override
+		public NAVIGABLE_SET KEY_GENERIC_TYPE keySet() { return SETS.unmodifiable(map.keySet()); }
+		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE descendingKeySet() { return SETS.unmodifiable(map.descendingKeySet()); }
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() { return MAPS.unmodifiable(map.firstEntry()); }
@@ -461,9 +533,11 @@ public class MAPS
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE ceilingEntry(KEY_TYPE key) { return MAPS.unmodifiable(map.ceilingEntry(key)); }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE copy() { return map.copy(); }
 	}
 	
+#endif
+#if ORDERED_MAP_FEATURE
 	/**
 	 * The Unmodifyable Ordered Map implementation that is sued for the unmodifyableMap function
 	 * @Type(T)
@@ -482,6 +556,10 @@ public class MAPS
 		@Override
 		public VALUE_TYPE putAndMoveToLast(KEY_TYPE key, VALUE_TYPE value) { throw new UnsupportedOperationException(); }
 		@Override
+		public VALUE_TYPE putFirst(KEY_TYPE key, VALUE_TYPE value) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE putLast(KEY_TYPE key, VALUE_TYPE value) { throw new UnsupportedOperationException(); }
+		@Override
 		public boolean moveToFirst(KEY_TYPE key) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean moveToLast(KEY_TYPE key) { throw new UnsupportedOperationException(); }
@@ -492,19 +570,44 @@ public class MAPS
 		@Override
 		public KEY_TYPE FIRST_ENTRY_KEY() { return map.FIRST_ENTRY_KEY(); }
 		@Override
-		public KEY_TYPE POLL_FIRST_ENTRY_KEY() { return map.POLL_FIRST_ENTRY_KEY(); }
+		public KEY_TYPE POLL_FIRST_ENTRY_KEY() { throw new UnsupportedOperationException(); }
 		@Override
 		public KEY_TYPE LAST_ENTRY_KEY() { return map.LAST_ENTRY_KEY(); }
 		@Override
-		public KEY_TYPE POLL_LAST_ENTRY_KEY() { return map.POLL_LAST_ENTRY_KEY(); }
+		public KEY_TYPE POLL_LAST_ENTRY_KEY() { throw new UnsupportedOperationException(); }
 		@Override
 		public VALUE_TYPE FIRST_ENTRY_VALUE() { return map.FIRST_ENTRY_VALUE(); }
 		@Override
 		public VALUE_TYPE LAST_ENTRY_VALUE() { return map.LAST_ENTRY_VALUE(); }
 		@Override
-		public ORDERED_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() { return map.firstEntry(); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() { return map.lastEntry(); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirstEntry() { throw new UnsupportedOperationException(); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry() { throw new UnsupportedOperationException(); }
+		@Override
+		public ORDERED_MAP KEY_VALUE_GENERIC_TYPE copy() { return map.copy(); }
+		@Override
+		public ORDERED_SET KEY_GENERIC_TYPE keySet() { 
+			if(keys == null) keys = SETS.unmodifiable(map.keySet()); 
+			return (ORDERED_SET KEY_GENERIC_TYPE)keys;
+		}
+		@Override
+		public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE values() {
+			if(values == null) values = VALUE_COLLECTIONS.unmodifiable(map.values());
+			return (VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE)values;
+		}
+		@Override
+		public ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
+			if(entrySet == null) entrySet = new UnmodifyableOrderedEntrySetKV_BRACES(map.ENTRY_SET());
+			return (ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE>)entrySet;
+		}
 	}
 	
+#endif
+#if SORTED_MAP_FEATURE
 	/**
 	 * The Unmodifyable Sorted Map implementation that is sued for the unmodifyableMap function
 	 * @Type(T)
@@ -527,21 +630,24 @@ public class MAPS
 		@Override
 		public SORTED_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey) { return MAPS.unmodifiable(map.tailMap(fromKey)); }
 		@Override
+		public SORTED_SET KEY_GENERIC_TYPE keySet() { return SETS.unmodifiable(map.keySet()); }
+		@Override
 		public KEY_TYPE FIRST_ENTRY_KEY() { return map.FIRST_ENTRY_KEY(); }
 		@Override
-		public KEY_TYPE POLL_FIRST_ENTRY_KEY() { return map.POLL_FIRST_ENTRY_KEY(); }
+		public KEY_TYPE POLL_FIRST_ENTRY_KEY() { throw new UnsupportedOperationException(); }
 		@Override
 		public KEY_TYPE LAST_ENTRY_KEY() { return map.LAST_ENTRY_KEY(); }
 		@Override
-		public KEY_TYPE POLL_LAST_ENTRY_KEY() { return map.POLL_LAST_ENTRY_KEY(); }
+		public KEY_TYPE POLL_LAST_ENTRY_KEY() { throw new UnsupportedOperationException(); }
 		@Override
 		public VALUE_TYPE FIRST_ENTRY_VALUE() { return map.FIRST_ENTRY_VALUE(); }
 		@Override
 		public VALUE_TYPE LAST_ENTRY_VALUE() { return map.LAST_ENTRY_VALUE(); }
 		@Override
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE copy() { return map.copy(); }
 	}
 	
+#endif
 	/**
 	 * The Unmodifyable Map implementation that is sued for the unmodifyableMap function
 	 * @Type(T)
@@ -576,13 +682,44 @@ public class MAPS
 		public boolean remove(KEY_TYPE key, VALUE_TYPE value) { throw new UnsupportedOperationException(); }
 #endif
 		@Override
-		public VALUE_TYPE GET_VALUE(KEY_TYPE key) { return map.GET_VALUE(key); }
+		public VALUE_TYPE GET_VALUE(KEY_TYPE key) {
+			VALUE_TYPE type = map.GET_VALUE(key);
+			return VALUE_EQUALS(type, map.getDefaultReturnValue()) && !map.containsKey(key) ? getDefaultReturnValue() : type;
+		}
 #if !TYPE_OBJECT || !VALUE_OBJECT
 		@Override
 		public VALUE_TYPE getOrDefault(KEY_TYPE key, VALUE_TYPE defaultValue) { return map.getOrDefault(key, defaultValue); }
 #endif
 		@Override
-		public MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { throw new UnsupportedOperationException(); }
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { throw new UnsupportedOperationException(); }
+#endif
+		@Override
+		public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public void BULK_MERGE(MAP KEY_VALUE_GENERIC_TYPE m, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public void REPLACE_VALUES(UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { throw new UnsupportedOperationException(); }
+		@Override
+		public void REPLACE_VALUES(MAP KEY_VALUE_GENERIC_TYPE m) { throw new UnsupportedOperationException(); }
+		@Override
+		public MAP KEY_VALUE_GENERIC_TYPE copy() { return map.copy(); }
+		@Override
+		public void clear() { throw new UnsupportedOperationException(); }
 		
 		@Override
 		public SET KEY_GENERIC_TYPE keySet() { 
@@ -603,6 +740,52 @@ public class MAPS
 		}
 	}
 	
+#if ORDERED_MAP_FEATURE
+	/**
+	 * The Unmodifyable Ordered Set implementation for the Unmodifyable Ordered Map implementation
+	 * @Type(T)
+	 * @ValueType(V)
+	 */
+	public static class UnmodifyableOrderedEntrySet KEY_VALUE_GENERIC_TYPE extends UnmodifyableEntrySet KEY_VALUE_GENERIC_TYPE implements ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE>
+	{
+		ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> set;
+		
+		UnmodifyableOrderedEntrySet(ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> c) {
+			super(c);
+			set = c;
+		}
+		
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public boolean addAndMoveToLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public boolean moveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public boolean moveToLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> copy() { return set.copy(); }
+		@Override
+		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iterator() { return ObjectIterators.unmodifiable(set.iterator()); }
+		@Override
+		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> reverseIterator() { return ObjectIterators.unmodifiable(set.reverseIterator()); }
+		@Override
+		public ObjectBidirectionalIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> iterator(MAP.Entry KEY_VALUE_GENERIC_TYPE fromElement) { return ObjectIterators.unmodifiable(set.iterator(fromElement)); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getFirst() { return set.getFirst(); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeFirst() { throw new UnsupportedOperationException(); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getLast() { return set.getLast(); }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeLast() { throw new UnsupportedOperationException(); }
+	}
+	
+#endif
 	/**
 	 * The Unmodifyable Set implementation for the Unmodifyable Map implementation
 	 * @Type(T)
@@ -636,6 +819,7 @@ public class MAPS
 		
 	}
 	
+#if SORTED_MAP_FEATURE
 	/**
 	 * The Synchronized Navigable Map implementation used by the synchronizedMap helper function
 	 * @Type(T)
@@ -661,9 +845,11 @@ public class MAPS
 		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE descendingKeySet() { synchronized(mutex) { return SETS.synchronize(map.descendingKeySet(), mutex); } }
 		@Override
+		public NAVIGABLE_SET KEY_GENERIC_TYPE keySet() { synchronized(mutex) { return SETS.synchronize(map.keySet(), mutex); } }
+		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() { synchronized(mutex) { return map.firstEntry(); } }
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() { synchronized(mutex) { return map.firstEntry(); } }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() { synchronized(mutex) { return map.lastEntry(); } }
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirstEntry() { synchronized(mutex) { return map.pollFirstEntry(); } }
 		@Override
@@ -697,8 +883,8 @@ public class MAPS
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE ceilingEntry(KEY_TYPE key) { synchronized(mutex) { return map.ceilingEntry(key); } }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
-		#if !TYPE_OBJECT
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE copy() { synchronized(mutex) { return map.copy(); } }
+#if !TYPE_OBJECT
 		@Override
 		@Deprecated
 		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(CLASS_TYPE fromKey, boolean fromInclusive, CLASS_TYPE toKey, boolean toInclusive) { synchronized(mutex) { return MAPS.synchronize(map.subMap(fromKey, fromInclusive, toKey, toInclusive), mutex); } }
@@ -752,6 +938,8 @@ public class MAPS
 #endif
 	}
 	
+#endif
+#if ORDERED_MAP_FEATURE
 	/**
 	 * The Synchronized Ordered Map implementation used by the synchronizedMap helper function
 	 * @Type(T)
@@ -775,6 +963,10 @@ public class MAPS
 		@Override
 		public VALUE_TYPE putAndMoveToLast(KEY_TYPE key, VALUE_TYPE value) { synchronized(mutex) { return map.putAndMoveToLast(key, value); } }
 		@Override
+		public VALUE_TYPE putFirst(KEY_TYPE key, VALUE_TYPE value) { synchronized(mutex) { return map.putFirst(key, value); } }
+		@Override
+		public VALUE_TYPE putLast(KEY_TYPE key, VALUE_TYPE value) { synchronized(mutex) { return map.putLast(key, value); } }
+		@Override
 		public boolean moveToFirst(KEY_TYPE key) { synchronized(mutex) { return map.moveToFirst(key); } }
 		@Override
 		public boolean moveToLast(KEY_TYPE key) { synchronized(mutex) { return map.moveToLast(key); } }
@@ -795,9 +987,34 @@ public class MAPS
 		@Override
 		public VALUE_TYPE LAST_ENTRY_VALUE() { synchronized(mutex) { return map.LAST_ENTRY_VALUE(); } }
 		@Override
-		public ORDERED_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() { synchronized(mutex) { return map.firstEntry(); } }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() { synchronized(mutex) { return map.lastEntry(); } }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollFirstEntry() { synchronized(mutex) { return map.pollFirstEntry(); } }
+		@Override
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry() { synchronized(mutex) { return map.pollLastEntry(); } }
+		@Override
+		public ORDERED_MAP KEY_VALUE_GENERIC_TYPE copy() { synchronized(mutex) { return map.copy(); } }
+		@Override
+		public ORDERED_SET KEY_GENERIC_TYPE keySet() {
+			if(keys == null) keys = SETS.synchronize(map.keySet(), mutex);
+			return (ORDERED_SET KEY_GENERIC_TYPE)keys;
+		}
+		@Override
+		public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE values() {
+			if(values == null) values = VALUE_COLLECTIONS.synchronize(map.values(), mutex);
+			return (VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE)values;
+		}
+		@Override
+		public ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
+			if(entrySet == null) entrySet = ObjectSets.synchronize(map.ENTRY_SET(), mutex);
+			return (ObjectOrderedSet<MAP.Entry KEY_VALUE_GENERIC_TYPE>)entrySet;
+		}
 	}
 	
+#endif
+#if SORTED_MAP_FEATURE
 	/**
 	 * The Synchronized Sorted Map implementation used by the synchronizedMap helper function
 	 * @Type(T)
@@ -825,6 +1042,8 @@ public class MAPS
 		@Override
 		public SORTED_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey) { synchronized(mutex) { return MAPS.synchronize(map.tailMap(fromKey), mutex); } }
 		@Override
+		public SORTED_SET KEY_GENERIC_TYPE keySet() { synchronized(mutex) { return SETS.synchronize(map.keySet(), mutex); } }
+		@Override
 		public KEY_TYPE FIRST_ENTRY_KEY() { synchronized(mutex) { return map.FIRST_ENTRY_KEY(); } }
 		@Override
 		public KEY_TYPE POLL_FIRST_ENTRY_KEY() { synchronized(mutex) { return map.POLL_FIRST_ENTRY_KEY(); } }
@@ -837,7 +1056,7 @@ public class MAPS
 		@Override
 		public VALUE_TYPE LAST_ENTRY_VALUE() { synchronized(mutex) { return map.LAST_ENTRY_VALUE(); } }
 		@Override
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE copy() { synchronized(mutex) { return map.copy(); } }
 #if !TYPE_OBJECT
 		@Override
 		@Deprecated
@@ -857,6 +1076,7 @@ public class MAPS
 #endif
 	}
 	
+#endif
 	/**
 	 * The Synchronized Map implementation used by the synchronizedMap helper function
 	 * @Type(T)
@@ -940,6 +1160,18 @@ public class MAPS
 		public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { synchronized(mutex) { return map.COMPUTE_IF_ABSENT(key, mappingFunction); } }
 		@Override
 		public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { synchronized(mutex) { return map.COMPUTE_IF_PRESENT(key, mappingFunction); } }
+		@Override
+		public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { synchronized(mutex) { return map.SUPPLY_IF_ABSENT(key, valueProvider); } }
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { synchronized(mutex) { return map.COMPUTENonDefault(key, mappingFunction); } }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_ABSENTNonDefault(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) { synchronized(mutex) { return map.COMPUTE_IF_ABSENTNonDefault(key, mappingFunction); } }
+		@Override
+		public VALUE_TYPE COMPUTE_IF_PRESENTNonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) { synchronized(mutex) { return map.COMPUTE_IF_PRESENTNonDefault(key, mappingFunction); } }
+		@Override
+		public VALUE_TYPE SUPPLY_IF_ABSENTNonDefault(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) { synchronized(mutex) { return map.SUPPLY_IF_ABSENTNonDefault(key, valueProvider); } }
+#endif
 		@Override
 		public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) { synchronized(mutex) { return map.MERGE(key, value, mappingFunction); } }
 		@Override
@@ -951,9 +1183,9 @@ public class MAPS
 		@Override
 		public void forEach(BI_CONSUMER KEY_VALUE_GENERIC_TYPE action) { synchronized(mutex) { map.forEach(action); } }
 		@Override
-		public int size() { synchronized(mutex) { return super.size(); } }
+		public int size() { synchronized(mutex) { return map.size(); } }
 		@Override
-		public MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		public MAP KEY_VALUE_GENERIC_TYPE copy() { synchronized(mutex) { return map.copy(); } }
 		@Override
 		public SET KEY_GENERIC_TYPE keySet() {
 			if(keys == null) keys = SETS.synchronize(map.keySet(), mutex);
@@ -1026,5 +1258,4 @@ public class MAPS
 		public void forEach(BiConsumer<? super CLASS_TYPE, ? super CLASS_VALUE_TYPE> action) { synchronized(mutex) { map.forEach(action); } }
 #endif
 	}
-#endif
 }

src/builder/resources/speiger/assets/testers/templates/builder/CollectionTestSuiteBuilder.template

@@ -0,0 +1,93 @@
+package speiger.src.testers.PACKAGE.builder;
+
+import java.util.List;
+
+import com.google.common.collect.testing.AbstractTester;
+import com.google.common.collect.testing.CollectionTestSuiteBuilder;
+import com.google.common.collect.testing.Helpers;
+import com.google.common.collect.testing.testers.CollectionRemoveIfTester;
+
+import speiger.src.testers.base.tests.collection.JavaCollectionRemoveIfTester;
+import speiger.src.testers.PACKAGE.generators.TEST_COLLECTION_GENERATOR;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionAddAllArrayTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionAddAllTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionAddTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionClearTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionContainsAllTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionContainsAnyTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionContainsTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionCopyTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionEqualsTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionForEachTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionIteratorTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionRemoveAllTester;
+#if !TYPE_BOOLEAN
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionRemoveIfTester;
+#if !TYPE_OBJECT
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionStreamTester;
+#endif
+#endif
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionRetainAllTester;
+import speiger.src.testers.PACKAGE.tests.collection.FILE_KEY_TYPECollectionToArrayTester;
+#if !TYPE_BOOLEAN
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterableCountTester;
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterableDistinctTester;
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterableFilterTester;
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterableFindFirstTester;
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterableLimitTester;
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterableMapTester;
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterableMatchesTester;
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterablePeekTester;
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterableReduceTester;
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterableRepeatTester;
+import speiger.src.testers.PACKAGE.tests.iterable.FILE_KEY_TYPEIterableSortedTester;
+#endif
+
+@SuppressWarnings("javadoc")
+public class COLLECTION_TEST_BUILDER KEY_GENERIC_TYPE extends CollectionTestSuiteBuilder<CLASS_TYPE> {
+	public static GENERIC_KEY_BRACES COLLECTION_TEST_BUILDER KEY_GENERIC_TYPE using(TEST_COLLECTION_GENERATOR KEY_GENERIC_TYPE generator) {
+		return (COLLECTION_TEST_BUILDER KEY_GENERIC_TYPE) new COLLECTION_TEST_BUILDER KEY_GENERIC_TYPE().usingGenerator(generator);
+	}
+
+	@Override
+	@SuppressWarnings("rawtypes")
+	protected List<Class<? extends AbstractTester>> getTesters() {
+		List<Class<? extends AbstractTester>> testers = Helpers.copyToList(super.getTesters());
+		testers.remove(CollectionRemoveIfTester.class);
+		testers.add(JavaCollectionRemoveIfTester.class);
+#if !TYPE_BOOLEAN
+		testers.add(FILE_KEY_TYPEIterableMapTester.class);
+		testers.add(FILE_KEY_TYPEIterableFilterTester.class);
+		testers.add(FILE_KEY_TYPEIterableDistinctTester.class);
+		testers.add(FILE_KEY_TYPEIterableLimitTester.class);
+		testers.add(FILE_KEY_TYPEIterableSortedTester.class);
+		testers.add(FILE_KEY_TYPEIterableMatchesTester.class);
+		testers.add(FILE_KEY_TYPEIterablePeekTester.class);
+		testers.add(FILE_KEY_TYPEIterableReduceTester.class);
+		testers.add(FILE_KEY_TYPEIterableRepeatTester.class);
+		testers.add(FILE_KEY_TYPEIterableCountTester.class);
+		testers.add(FILE_KEY_TYPEIterableFindFirstTester.class);
+#endif
+		testers.add(FILE_KEY_TYPECollectionAddAllTester.class);
+		testers.add(FILE_KEY_TYPECollectionAddAllArrayTester.class);
+		testers.add(FILE_KEY_TYPECollectionAddTester.class);
+		testers.add(FILE_KEY_TYPECollectionClearTester.class);
+		testers.add(FILE_KEY_TYPECollectionContainsAllTester.class);
+		testers.add(FILE_KEY_TYPECollectionContainsAnyTester.class);
+		testers.add(FILE_KEY_TYPECollectionContainsTester.class);
+		testers.add(FILE_KEY_TYPECollectionCopyTester.class);
+		testers.add(FILE_KEY_TYPECollectionEqualsTester.class);
+		testers.add(FILE_KEY_TYPECollectionForEachTester.class);
+		testers.add(FILE_KEY_TYPECollectionIteratorTester.class);
+		testers.add(FILE_KEY_TYPECollectionRemoveAllTester.class);
+		testers.add(FILE_KEY_TYPECollectionRetainAllTester.class);
+#if !TYPE_BOOLEAN
+		testers.add(FILE_KEY_TYPECollectionRemoveIfTester.class);
+#if !TYPE_OBJECT
+		testers.add(FILE_KEY_TYPECollectionStreamTester.class);
+#endif
+#endif
+		testers.add(FILE_KEY_TYPECollectionToArrayTester.class);
+		return testers;
+	}
+}

src/builder/resources/speiger/assets/testers/templates/builder/DequeueTestSuiteBuilder.template

@@ -0,0 +1,28 @@
+package speiger.src.testers.PACKAGE.builder;
+
+import java.util.List;
+
+import com.google.common.collect.testing.AbstractTester;
+
+import speiger.src.testers.PACKAGE.generators.TEST_QUEUE_GENERATOR;
+import speiger.src.testers.PACKAGE.tests.queue.FILE_KEY_TYPEDequeueDequeueTester;
+import speiger.src.testers.PACKAGE.tests.queue.FILE_KEY_TYPEDequeueEnqueueTester;
+import speiger.src.testers.PACKAGE.tests.queue.FILE_KEY_TYPEDequeueLastTester;
+
+@SuppressWarnings("javadoc")
+public class DEQUEUE_TEST_BUILDER KEY_GENERIC_TYPE extends QUEUE_TEST_BUILDER KEY_GENERIC_TYPE
+{
+	public static GENERIC_KEY_BRACES DEQUEUE_TEST_BUILDER KEY_GENERIC_TYPE using(TEST_QUEUE_GENERATOR KEY_GENERIC_TYPE builder) {
+		return (DEQUEUE_TEST_BUILDER KEY_GENERIC_TYPE)new DEQUEUE_TEST_BUILDER KEY_GENERIC_TYPE().usingGenerator(builder);
+	}
+	
+	@Override
+	@SuppressWarnings("rawtypes")
+	protected List<Class<? extends AbstractTester>> getTesters() {
+		List<Class<? extends AbstractTester>> tester = super.getTesters();
+		tester.add(FILE_KEY_TYPEDequeueDequeueTester.class);
+		tester.add(FILE_KEY_TYPEDequeueEnqueueTester.class);
+		tester.add(FILE_KEY_TYPEDequeueLastTester.class);
+		return tester;
+	}
+}