Disabled Google Tests that we don't have to deal.

-Added: Indirect Sorters.
-Added: ReferenceMaps
-Fixed: A bunch of smaller bugs found due to tests

.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, 17, 20, 21]
+
+      runs-on: ubuntu-latest
+      steps:
+         - uses: actions/checkout@v6
+         
+         - name: Set up JDK ${{ matrix.jdk }}
+           uses: actions/setup-java@v5
+           with:
+               distribution: 'temurin'
+               java-version: ${{ matrix.jdk }}
+
+         - name: Validate Gradle wrapper
+           uses: gradle/actions/wrapper-validation@v6
+
+         - 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@v6
+         with:
+            fetch-depth: 0
+            
+      -  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 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" >> $GITHUB_ENV
+                ;;
+            esac
+
+      -  name: Create Test Badge
+         uses: emibcn/badge-action@v2
+         with:
+            label: Tests
+            status: '${{ 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@v6
+         with:
+            fetch-depth: 0
+            
+      -  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 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

@@ -30,5 +30,19 @@ gradle-app.setting
 /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

.project

@@ -2,21 +2,22 @@
 <projectDescription>
 	<name>Primitive-Collections</name>
 	<comment></comment>
-	<projects/>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
 	<natures>
 		<nature>org.eclipse.jdt.core.javanature</nature>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
 	</natures>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments/>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
-			<arguments/>
-		</buildCommand>
-	</buildSpec>
-	<linkedResources/>
-	<filteredResources/>
 </projectDescription>

Changelog.md

@@ -1,5 +1,61 @@
 # Changelog of versions
 
+### Version 0.9.0
+- 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.
+- Breaking Change: Map.compute/IfAbsent/Present and Map.supplyIfAbsent if the value is a primitive it will no longer accept the defaultReturnValue() as "null" if that functionality is desired then use: computeNonDefault which contains the functionality!
+
+### 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

EXTRAS.md

@@ -0,0 +1,44 @@
+### 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" can be defined as "Enabled" or "Disabled" using the "Default" argument.     
+If "Default" is missing, then it will just default to "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.   
+Note: If a global Module setting is disabled but a dependency needs said Module, it will enable only the required classes.    
+If a Module type (Float-Collection as example) is specifically disabled, the Dependency Resolver will throw errors telling you whats wrong.    
+
+How to compile the Code with the ModuleSettings enabled:
+```
+/gradlew.bat generateLimitSource build -x test
+```

README.md

@@ -1,8 +1,12 @@
-![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)
+![Maven Central Version](https://img.shields.io/maven-central/v/io.github.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)
+![GitHub commit activity](https://img.shields.io/github/commit-activity/y/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/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/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.  
@@ -14,6 +18,10 @@ 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)
@@ -36,14 +44,21 @@ To ensure that problems can be dealt with even if it is breaking the current API
 
 # How to install
 Using Jitpack Gradle
-```gradle
+```groovy
 repositories {
     maven {
         url = "https://jitpack.io"
     }
 }
 dependencies {
-	implementation 'com.github.Speiger:Primitive-Collections:0.7.0'
+	implementation 'com.github.Speiger:Primitive-Collections:0.9.0'
+}
+```
+
+Using Maven Central
+```groovy
+dependencies {
+	implementation 'io.github.speiger:Primitive-Collections:0.9.0'
 }
 ```
 
@@ -68,7 +83,11 @@ 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      
+```

SECURITY.md

@@ -0,0 +1,15 @@
+# Security Policy
+
+## Supported Versions
+
+Due to how the releases work, only the latest versions will be supported.
+
+## Reporting a Vulnerability
+
+If you have discovered a security vulnerability in this project, please report it privately.     
+**Please refrain from posting in public issues.**     
+This gives me time to process issues that are being found, and reduces the possiblity of abuse while patches are being created.   
+Please disclose it [here](https://github.com/Speiger/Primitive-Collections/security/advisories/new).
+
+Please consider that this project is developed by a single person.    
+So please provide a reasonable timeframe when reporting.    

build.gradle

@@ -1,5 +1,6 @@
 plugins {
     id 'java-library'
+    id "jacoco"
 }
 
 tasks.withType(JavaCompile) {
@@ -9,6 +10,7 @@ tasks.withType(JavaCompile) {
 apply plugin: 'java'
 apply plugin: 'eclipse'
 apply plugin: 'maven-publish'
+apply plugin: 'signing'
 
 repositories {
     mavenCentral()
@@ -18,16 +20,22 @@ repositories {
 }
 
 archivesBaseName = 'Primitive Collections'
-version = '0.7.0';
+version = RELEASE_VERSION;
 
 sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = JavaVersion.current();
 
 System.out.println("Java Version: "+compileJava.sourceCompatibility)
 
+java {
+	withJavadocJar()
+    withSourcesJar()
+}
+
 javadoc {
     options.tags = [ "implSpec", "note" ] 
 }
 
+
 eclipse {
 	classpath {
 		downloadJavadoc = true
@@ -39,14 +47,16 @@ sourceSets {
     builder
 }
 
+
 configurations {
 	builderCompile.extendsFrom compile
 }
 
 dependencies {
-	builderImplementation 'de.speiger:Simple-Code-Generator:1.1.4'
+	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 +72,7 @@ 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 +80,31 @@ task forceGenerateSource(type: JavaExec) {
 	description = 'Builds the sourcecode forceful'
  	classpath = sourceSets.builder.runtimeClasspath
  	main = 'speiger.src.builder.PrimitiveCollectionsBuilder'
- 	args = ['true']
+ 	args = ['force']
 }
 
-task javadocJar(type: Jar) {
-    from javadoc
-    classifier = 'javadoc'
+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 srcJar(type: Jar) {
-    from sourceSets.main.allSource
-    classifier = 'sources'
+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']
 }
 
 compileJava.dependsOn generateGithubSource
@@ -89,22 +113,159 @@ javadoc.failOnError = false
 javadoc.options.memberLevel = JavadocMemberLevel.PUBLIC
 javadoc.options.quiet()
 
-artifacts {
-    archives javadocJar
-    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 {
-	Properties props = new Properties()
-	if(file("$buildDir/credentials.properties").exists()) {
-		props.load(new FileInputStream("$buildDir/credentials.properties"))
-	}
 	publications {
-		mavenJava(MavenPublication) {
+		personal(MavenPublication) {
 			pom {
 				name = 'Primitive Collections'
 				description = 'A Primitive Collection library that reduces memory usage and improves performance'
@@ -113,8 +274,6 @@ publishing {
 				artifactId = project.archivesBaseName.replace(" ", "-")
 				groupId = 'de.speiger'
 				from components.java
-				artifact tasks.srcJar
-				artifact tasks.javadocJar
 				licenses {
 					license {
 						name = 'The Apache License, Version 2.0'
@@ -139,11 +298,83 @@ publishing {
 	}
 	repositories {
 		maven {
+			name = "Speiger_Maven"
+			def auth = System.getenv("Speiger_Maven_Auth")?.split(';');
 			url version.endsWith('SNAPSHOT') ? "https://maven.speiger.com/repository/debug" : "https://maven.speiger.com/repository/main"
 			credentials(PasswordCredentials) {
-				username props.mavenUser
-				password props.mavenPassword
+				username auth?[0]
+				password auth?[1]
 			}
 		}
 	}
 }
+
+tasks.withType(PublishToMavenRepository) {
+    def predicate = provider {
+        (repository == publishing.repositories.mavenCentral && publication == publishing.publications.maven) ||
+        (repository != publishing.repositories.mavenCentral && publication != publishing.publications.maven)
+    }
+    onlyIf("publishing binary to the external repository, or binary and sources to the internal one") {
+        predicate.get()
+    }
+}
+
+tasks.withType(PublishToMavenLocal) {
+    def predicate = provider {
+        publication == publishing.publications.personal
+    }
+    onlyIf("publishing binary and sources") {
+        predicate.get()
+    }
+}
+
+//Maven central Start
+//Disabling due to java8 incompat, only needed to manually publishing anyways
+
+//signing.useGpgCmd()
+//
+//import com.vanniktech.maven.publish.SonatypeHost
+//import com.vanniktech.maven.publish.JavaLibrary
+//import com.vanniktech.maven.publish.JavadocJar
+//
+//mavenPublishing {
+//  configure(new JavaLibrary(new JavadocJar.None(), true))
+//}
+//
+//mavenPublishing {
+//    publishToMavenCentral(SonatypeHost.CENTRAL_PORTAL)
+//
+//    signAllPublications()
+//    pom {
+//		name = 'Primitive Collections'
+//		description = 'A Primitive Collection library that reduces memory usage and improves performance'
+//		url = 'https://github.com/Speiger/Primitive-Collections'
+//		version = project.version	
+//		group = 'io.github.speiger'
+//        licenses {
+//            license {
+//				name = 'The Apache License, Version 2.0'
+//				url = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+//            }
+//        }
+//
+//        developers {
+//			developer {
+//				id = 'speiger'
+//				name = 'Speiger'
+//			}
+//        }
+//
+//        scm {
+//            connection = 'scm:git:git://github.com/Speiger/Primitive-Collections.git'
+//            developerConnection = 'scm:git:ssh://github.com:Speiger/Primitive-Collections.git'
+//            url = 'https://github.com/Speiger/Primitive-Collections'
+//        }
+//                
+//        issueManagement {
+//			system = 'github'
+//			url = 'https://github.com/Speiger/Primitive-Collections/issues'
+//		}
+//    }
+//}
+//

gradle.properties

@@ -1 +1,6 @@
 org.gradle.jvmargs=-Xmx3G
+
+maxMemory = 2048m
+testThreads = 4
+
+RELEASE_VERSION = 0.9.0

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-8.10-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());

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;
@@ -379,9 +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) {
@@ -491,6 +649,154 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		}
 	}
 	
+#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;
@@ -568,7 +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.min(index, size()-1);
+			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;
@@ -202,6 +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.
@@ -587,6 +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
@@ -606,6 +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
@@ -639,7 +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;
 	}
@@ -648,7 +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;
 	}
@@ -657,18 +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
@@ -695,7 +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;
@@ -707,7 +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
@@ -715,7 +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;
 	}
@@ -1026,6 +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]);
@@ -1061,6 +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
@@ -1159,8 +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
@@ -1177,4 +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

@@ -8,16 +8,31 @@ import java.util.Collection;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 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.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
@@ -27,26 +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;
 
@@ -148,14 +171,49 @@ 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;
 	}
@@ -524,7 +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;
 	}
@@ -535,7 +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
@@ -559,7 +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
@@ -773,7 +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;
 	}
@@ -783,7 +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;
 	}
@@ -793,19 +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
@@ -834,7 +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;
@@ -847,7 +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
@@ -856,7 +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;
 	}
@@ -1282,6 +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]);
@@ -1320,6 +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
 	
@@ -1409,7 +1473,8 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 			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
@@ -1427,6 +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;
@@ -2080,9 +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();

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;
 		

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);
@@ -222,6 +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);
@@ -232,6 +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);
@@ -291,18 +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() {
+		return GET_FIRST_KEY();
+	}
+	
+	@Override
+	public KEY_TYPE last() {
+		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 last() {
+	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);
@@ -373,6 +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.
@@ -393,6 +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);
@@ -401,6 +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);
@@ -412,7 +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;
 	}
@@ -421,7 +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;
 	}
@@ -430,18 +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
@@ -468,7 +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;
@@ -480,7 +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
@@ -488,7 +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;
 	}
@@ -525,6 +629,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	}
 	
 #endif
+#if DEQUEUE_FEATURE
 	@Override
 	public void onChanged() {}
 	@Override
@@ -538,25 +643,24 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	
 	@Override
 	public KEY_TYPE dequeueLast() {
+		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
@@ -571,6 +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);
@@ -653,7 +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
@@ -931,6 +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) {
@@ -965,7 +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);
 	}
 	
@@ -1108,8 +1221,7 @@ 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;
@@ -1194,6 +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;
@@ -1338,4 +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());
@@ -298,7 +422,7 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 	@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());
 		}
@@ -332,7 +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();
@@ -383,7 +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();
@@ -423,11 +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;
@@ -525,6 +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);
@@ -638,7 +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];
 					}					
 				}
@@ -650,14 +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];
 					}					
@@ -668,6 +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);
@@ -677,7 +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];
 					}					
 				}
@@ -688,17 +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];
 					}					
 				}
@@ -710,17 +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];
 					}					
 				}
@@ -732,17 +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];
 					}
 				}
@@ -763,7 +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];
 					}
 				}
@@ -775,7 +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;
@@ -787,11 +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];
 					}					
 				}
@@ -799,21 +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];
 					}
 				}
@@ -821,22 +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];
 					}
 				}
@@ -977,6 +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);
@@ -1005,7 +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];
 					}					
 				}
@@ -1025,7 +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];
 					}
 				}
@@ -1045,7 +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];
 					}
 				}
@@ -1102,7 +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;
@@ -1126,11 +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];
@@ -1138,7 +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];
 					}
 				}
@@ -1146,7 +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
@@ -1159,7 +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];
 					}
 				}
@@ -1225,6 +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);
@@ -1253,7 +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];
 					}
 				}
@@ -1273,7 +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];
 					}
 				}
@@ -1293,7 +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];
 					}
 				}
@@ -1350,7 +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;
@@ -1374,20 +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];
 					}
 				}
@@ -1395,7 +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
@@ -1408,7 +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];
 					}
 				}
@@ -1445,12 +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
@@ -1635,6 +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;
@@ -1670,7 +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;
 			}
@@ -1812,6 +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 {
@@ -2114,6 +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;
@@ -2131,19 +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;
 				}
@@ -2154,19 +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;
 				}
@@ -2177,7 +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);
@@ -2195,6 +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 {

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

@@ -3,19 +3,39 @@ 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;
@@ -24,7 +44,7 @@ import speiger.src.collections.PACKAGE.sets.ABSTRACT_SET;
 import speiger.src.collections.PACKAGE.sets.ORDERED_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;
@@ -36,17 +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
@@ -220,13 +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;
@@ -234,7 +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;
@@ -242,7 +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();
@@ -254,13 +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;
@@ -268,7 +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;
@@ -276,7 +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();
@@ -287,7 +353,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		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;
 			}
 		}
@@ -295,7 +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;
@@ -309,7 +375,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		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;
 			}
 		}
@@ -317,7 +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;
@@ -330,7 +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];
 	}
 	
@@ -338,7 +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];
 	}
 	
@@ -417,6 +483,52 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		return values[lastIndex];
 	}
 	
+	@Override
+	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();
@@ -430,9 +542,9 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	}
 	
 	@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
@@ -468,8 +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;
@@ -486,8 +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;
@@ -601,6 +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
@@ -617,24 +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;
@@ -642,7 +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
@@ -652,7 +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
@@ -667,70 +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;
@@ -742,14 +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;
@@ -757,40 +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;
@@ -876,9 +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(); }
 
@@ -894,7 +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
@@ -916,22 +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();
 		}
 		
@@ -944,6 +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);
@@ -961,7 +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;
@@ -973,7 +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;
@@ -985,7 +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;
@@ -1019,7 +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;
@@ -1034,19 +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
@@ -1056,46 +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
@@ -1107,6 +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);
@@ -1124,7 +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;
@@ -1136,7 +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;
@@ -1148,7 +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;
@@ -1182,7 +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;
@@ -1197,19 +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
@@ -1219,7 +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;
@@ -1229,7 +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);
 		}
@@ -1256,19 +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
@@ -1286,7 +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);
 		}
@@ -1308,7 +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() {
@@ -1329,16 +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];
@@ -1366,11 +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() {
@@ -1430,20 +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];
 	}
 	
@@ -519,6 +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;
@@ -533,18 +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;
 		}
@@ -552,18 +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;
 		}
@@ -571,7 +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();
@@ -584,6 +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);
@@ -604,7 +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());
@@ -772,6 +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;
 		
@@ -780,6 +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];
@@ -802,19 +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;
@@ -822,12 +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());
 		}
 	}
 	
@@ -844,85 +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;
@@ -932,67 +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 = 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;
@@ -1101,6 +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);
@@ -1115,9 +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;
 		}
@@ -1126,9 +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;
 		}
@@ -1137,9 +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;
 		}
@@ -1172,7 +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;
@@ -1189,18 +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
@@ -1208,9 +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;
 		}
@@ -1257,6 +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);
@@ -1271,9 +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;
 		}
@@ -1282,9 +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;
 		}
@@ -1293,9 +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;
 		}
@@ -1328,7 +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;
@@ -1345,18 +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
@@ -1364,9 +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;
 		}
@@ -1385,7 +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
@@ -1415,7 +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) {
@@ -1427,7 +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;
 						}
@@ -1446,7 +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;
@@ -1465,7 +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;
 			}
@@ -1488,13 +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

@@ -3,19 +3,39 @@ 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;
@@ -23,7 +43,7 @@ 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.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;
@@ -35,17 +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
@@ -197,13 +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;
@@ -211,7 +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;
@@ -219,7 +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();
@@ -231,13 +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;
@@ -245,7 +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;
@@ -253,7 +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();
@@ -264,7 +330,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		if(isEmpty() || KEY_EQUALS(FIRST_ENTRY_KEY(), key)) return false;
 		if(KEY_EQUALS_NULL(key)) {
 			if(containsNull) {
-				moveToFirstIndex(nullIndex);
+				moveToFirstIndex(nullIndex, false);
 				return true;
 			}
 		}
@@ -272,7 +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;
@@ -286,7 +352,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		if(isEmpty() || KEY_EQUALS(LAST_ENTRY_KEY(), key)) return false;
 		if(KEY_EQUALS_NULL(key)) {
 			if(containsNull) {
-				moveToLastIndex(nullIndex);
+				moveToLastIndex(nullIndex, false);
 				return true;
 			}
 		}
@@ -294,7 +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;
@@ -307,7 +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];
 	}
 	
@@ -315,7 +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];
 	}
 	
@@ -421,6 +487,52 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		return values[lastIndex];
 	}
 	
+	@Override
+	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();
@@ -434,9 +546,9 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	}
 	
 	@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
@@ -472,8 +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;
@@ -490,8 +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;
@@ -605,6 +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
@@ -621,24 +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;
@@ -646,7 +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
@@ -656,7 +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
@@ -671,70 +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;
@@ -746,14 +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;
@@ -761,40 +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;
@@ -875,6 +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(); }
 
@@ -893,7 +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
@@ -915,22 +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();
 		}
 		
@@ -943,6 +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);
@@ -960,7 +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;
@@ -972,7 +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;
@@ -984,7 +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;
@@ -1018,7 +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;
@@ -1033,19 +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
@@ -1055,48 +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);
@@ -1107,6 +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);
@@ -1124,7 +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;
@@ -1136,7 +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;
@@ -1148,7 +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;
@@ -1182,7 +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;
@@ -1197,19 +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
@@ -1219,7 +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;
@@ -1229,7 +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);
 		}
@@ -1256,19 +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
@@ -1286,7 +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);
 		}
@@ -1308,7 +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() {
@@ -1328,13 +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) {
@@ -1365,11 +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() {
@@ -1429,20 +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];
 	}
 	
@@ -480,6 +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;
@@ -494,18 +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;
 		}
@@ -513,18 +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;
 		}
@@ -532,7 +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();
@@ -545,6 +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);
@@ -565,7 +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());
@@ -732,6 +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;
 		
@@ -740,6 +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];
@@ -762,19 +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;
@@ -782,12 +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());
 		}
 	}
 	
@@ -804,85 +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;
@@ -892,67 +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 = 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;
@@ -1057,6 +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);
@@ -1071,9 +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;
 		}
@@ -1082,9 +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;
 		}
@@ -1093,9 +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;
 		}
@@ -1128,7 +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;
@@ -1145,18 +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
@@ -1164,9 +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;
 		}
@@ -1213,6 +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);
@@ -1227,9 +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;
 		}
@@ -1238,9 +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;
 		}
@@ -1249,9 +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;
 		}
@@ -1284,7 +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;
@@ -1301,18 +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
@@ -1320,9 +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;
 		}
@@ -1341,7 +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
@@ -1371,7 +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) {
@@ -1383,7 +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;
 						}
@@ -1402,7 +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;
@@ -1421,7 +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;
 			}
@@ -1444,13 +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;
@@ -28,30 +52,27 @@ import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.sets.ORDERED_SET;
 #endif
-import speiger.src.collections.PACKAGE.utils.maps.MAPS;
 #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;
 #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
@@ -105,7 +126,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	/** KeySet cache */
 	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;
@@ -215,7 +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++;
@@ -306,6 +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(); }
@@ -429,6 +454,23 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		return values[lastIndex];
 	}
 	
+	@Override
+	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();
@@ -442,7 +484,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	}
 	
 	@Override
-	public VALUE_COLLECTION VALUE_GENERIC_TYPE values() {
+	public VALUE_ORDERED_COLLECTION VALUE_GENERIC_TYPE values() {
 		if(valuesC == null) valuesC = new Values();
 		return valuesC;
 	}
@@ -479,16 +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(); }
 	
@@ -589,6 +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
@@ -601,24 +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
@@ -628,7 +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
@@ -659,6 +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);
@@ -671,42 +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;
@@ -725,7 +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;
@@ -740,25 +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();
@@ -766,7 +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;
@@ -829,6 +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(); }
 
@@ -843,7 +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
@@ -863,20 +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) {
@@ -887,6 +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);
@@ -904,7 +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;
@@ -916,7 +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;
@@ -928,7 +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;
@@ -962,7 +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;
@@ -977,19 +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
@@ -999,46 +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;
@@ -1048,6 +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);
@@ -1065,7 +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;
@@ -1077,7 +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;
@@ -1089,7 +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;
@@ -1123,7 +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;
@@ -1138,19 +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
@@ -1160,7 +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;
@@ -1170,7 +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);
 		}
@@ -1196,7 +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);
 		}
@@ -1223,7 +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);
 		}
@@ -1245,7 +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() {
@@ -1266,13 +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) {
@@ -1303,11 +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() {
@@ -1324,20 +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

@@ -5,6 +5,10 @@ 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;
@@ -18,8 +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;
@@ -161,7 +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();
@@ -351,6 +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;
@@ -367,10 +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;			
@@ -378,7 +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;
 		}
@@ -386,10 +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;			
@@ -397,7 +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;
 		}
@@ -405,7 +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]);
@@ -418,6 +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();
@@ -442,7 +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());
@@ -535,7 +638,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		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 BasicEntryKV_BRACES(keys[i], values[i]));
+				if(isSet(i)) action.accept(new ValueMapEntry(i));
 			}
 		}
 		
@@ -618,7 +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());
 		}
 	}
 	
@@ -665,6 +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;
 		
@@ -673,6 +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];
@@ -695,19 +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;
@@ -715,12 +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

@@ -18,7 +18,7 @@ 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.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;
@@ -216,6 +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();
@@ -312,6 +334,42 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		return values[lastIndex];
 	}
 	
+	@Override
+	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();
@@ -325,9 +383,9 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	}
 	
 	@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
@@ -415,6 +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
@@ -431,24 +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;
@@ -456,7 +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
@@ -466,7 +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
@@ -480,17 +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];
 			}
@@ -574,7 +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(); }
 
@@ -593,7 +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
@@ -614,22 +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();
 		}
 		
@@ -656,41 +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) {
@@ -715,7 +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);
 		}
@@ -742,19 +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
@@ -772,7 +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);
 		}
@@ -794,7 +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() {
@@ -815,16 +899,20 @@ 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();
@@ -832,11 +920,11 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		}
 		
 		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() {
@@ -871,20 +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() {
@@ -903,6 +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;
 		
@@ -911,6 +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];
@@ -933,19 +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;
@@ -953,12 +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/impl/tree/AVLTreeMap.template

@@ -6,9 +6,20 @@ import java.util.Map;
 import java.util.Comparator;
 #endif
 import java.util.Objects;
+import java.util.Optional;
 import java.util.NoSuchElementException;
 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
+
 
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 #if !TYPE_OBJECT
@@ -16,11 +27,25 @@ import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 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 !VALUE_BOOLEAN || !JDK_TYPE
+import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
+#endif
+#if !TYPE_INT || !SAME_TYPE
+import speiger.src.collections.PACKAGE.functions.consumer.BI_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
-import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
-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;
@@ -33,7 +58,6 @@ import speiger.src.collections.PACKAGE.sets.NAVIGABLE_SET;
 #if TYPE_OBJECT
 import speiger.src.collections.PACKAGE.sets.SET;
 #endif
-import speiger.src.collections.PACKAGE.utils.maps.MAPS;
 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_ITERATOR;
@@ -48,17 +72,15 @@ import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_CONSUMER;
 #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 && !VALUE_OBJECT
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
@@ -280,7 +302,10 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		int compare = 0;
 		Node KEY_VALUE_GENERIC_TYPE parent = tree;
 		while(true) {
-			if((compare = compare(key, parent.key)) == 0) return parent.value;
+			if((compare = compare(key, parent.key)) == 0) {
+				if(VALUE_EQUALS(parent.value, getDefaultReturnValue())) return parent.setValue(value);
+				return parent.value;
+			}
 			if(compare < 0) {
 				if(parent.left == null) break;
 				parent = parent.left;
@@ -528,6 +553,105 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		Objects.requireNonNull(mappingFunction);
 #if TYPE_OBJECT
 		validate(key);
+#endif
+		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
+		if(entry == null) {
+			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			put(key, newValue);
+			return newValue;
+		}
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, entry.value);
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			removeNode(entry);
+			return newValue;
+		}
+#endif
+		entry.value = newValue;
+		return newValue;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
+#endif
+		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
+		if(entry == null) {
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			put(key, newValue);
+			return newValue;
+		}
+#if VALUE_OBJECT
+		if(Objects.equals(entry.value, getDefaultReturnValue())) {
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			entry.value = newValue;
+		}
+#endif
+		return entry.value;
+	}
+	
+	@Override
+	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+		Objects.requireNonNull(valueProvider);
+#if TYPE_OBJECT
+		validate(key);
+#endif
+		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
+		if(entry == null) {
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			put(key, newValue);
+			return newValue;
+		}
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(entry.value, getDefaultReturnValue())) {
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			entry.value = newValue;
+		}
+#endif
+		return entry.value;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
+#endif
+		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
+#if !VALUE_OBJECT
+		if(entry == null) return getDefaultReturnValue();
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, entry.value);
+#else
+		if(entry == null || VALUE_EQUALS(entry.value, getDefaultReturnValue())) return getDefaultReturnValue();
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, entry.value);
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			removeNode(entry);
+			return newValue;
+		}
+#endif
+		entry.value = newValue;
+		return newValue;
+	}
+	
+#if !VALUE_OBJECT
+	@Override
+	public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
 #endif
 		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
@@ -546,20 +670,20 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	}
 	
 	@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);
 #if TYPE_OBJECT
 		validate(key);
 #endif
 		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
-			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			put(key, newValue);
 			return newValue;
 		}
 		if(Objects.equals(entry.value, getDefaultReturnValue())) {
-			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			entry.value = newValue;
 		}
@@ -567,20 +691,20 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	}
 	
 	@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);
 #if TYPE_OBJECT
 		validate(key);
 #endif
 		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
-			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			put(key, newValue);
 			return newValue;
 		}
 		if(VALUE_EQUALS(entry.value, getDefaultReturnValue())) {
-			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			entry.value = newValue;
 		}
@@ -588,7 +712,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	}
 	
 	@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);
 #if TYPE_OBJECT
 		validate(key);
@@ -604,6 +728,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		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);
@@ -624,7 +749,7 @@ public class AVL_TREE_MAP KEY_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)) {
 			KEY_TYPE key = entry.ENTRY_KEY();
 			Node KEY_VALUE_GENERIC_TYPE subEntry = findNode(key);
 			VALUE_TYPE newValue = subEntry == null || VALUE_EQUALS(subEntry.value, getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(subEntry.value, entry.ENTRY_VALUE());
@@ -1144,6 +1269,14 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				action.accept(entry.key);
 		}
 		
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			int index = 0;
+			for(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));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);
@@ -1155,7 +1288,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				if(filter.TEST_VALUE(entry.key)) return true;
+				if(filter.test(entry.key)) return true;
 			return false;
 		}
 		
@@ -1163,7 +1296,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				if(filter.TEST_VALUE(entry.key)) return false;
+				if(filter.test(entry.key)) return false;
 			return true;
 		}
 		
@@ -1171,7 +1304,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				if(!filter.TEST_VALUE(entry.key)) return false;
+				if(!filter.test(entry.key)) return false;
 			return true;
 		}
 		
@@ -1197,7 +1330,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		
 #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;
@@ -1209,15 +1342,15 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				}
 				state = operator.APPLY_KEY_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(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				if(filter.TEST_VALUE(entry.key)) return entry.key;
-			return EMPTY_KEY_VALUE;
+				if(filter.test(entry.key)) return OPTIONAL.GET_OPTIONAL(entry.key);
+			return OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1225,7 +1358,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			Objects.requireNonNull(filter);
 			int result = 0;
 			for(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				if(filter.TEST_VALUE(entry.key)) result++;
+				if(filter.test(entry.key)) result++;
 			return result;
 		}
 	}
@@ -1645,6 +1778,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 #endif
 			if(!inRange(key)) return getDefaultReturnValue();
 			Node KEY_VALUE_GENERIC_TYPE entry = map.findNode(key);
+#if VALUE_OBJECT
 			if(entry == null || VALUE_EQUALS(entry.value, getDefaultReturnValue())) return getDefaultReturnValue();
 			VALUE_TYPE newValue = mappingFunction.apply(key, entry.value);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
@@ -1653,6 +1787,11 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			}
 			entry.value = newValue;
 			return newValue;
+#else
+			if(entry == null) return getDefaultReturnValue();
+			entry.value = mappingFunction.apply(key, entry.value);
+			return entry.value;
+#endif
 		}
 		
 		@Override
@@ -1832,6 +1971,14 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 					action.accept(new BasicEntryKV_BRACES(entry.key, entry.value));
 			}
 			
+			@Override
+			public void forEachIndexed(IntObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+				Objects.requireNonNull(action);
+				int index = 0;
+				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
+					action.accept(index++, new BasicEntryKV_BRACES(entry.key, entry.value));
+			}
+			
 			@Override
 			public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 				Objects.requireNonNull(action);
@@ -1840,37 +1987,37 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			}
 			
 			@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 subEntry = new BasicEntryKV_BRACES();
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
 					subEntry.set(entry.key, entry.value);
-					if(filter.getBoolean(subEntry)) return true;
+					if(filter.test(subEntry)) 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 subEntry = new BasicEntryKV_BRACES();
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
 					subEntry.set(entry.key, entry.value);
-					if(filter.getBoolean(subEntry)) return false;
+					if(filter.test(subEntry)) 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 subEntry = new BasicEntryKV_BRACES();
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
 					subEntry.set(entry.key, entry.value);
-					if(!filter.getBoolean(subEntry)) return false;
+					if(!filter.test(subEntry)) return false;
 				}
 				return true;
 			}
@@ -1886,7 +2033,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			}
 			
 			@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;
@@ -1898,30 +2045,30 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 					}
 					state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
 				}
-				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 subEntry = new BasicEntryKV_BRACES();
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
 					subEntry.set(entry.key, entry.value);
-					if(filter.getBoolean(subEntry)) return subEntry;
+					if(filter.test(subEntry)) return Optional.ofNullable(subEntry);
 				}
-				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 subEntry = new BasicEntryKV_BRACES();
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
 					subEntry.set(entry.key, entry.value);
-					if(filter.getBoolean(subEntry)) result++;
+					if(filter.test(subEntry)) result++;
 				}
 				return result;
 			}
@@ -1964,6 +2111,14 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 					action.accept(entry.value);
 			}
 			
+			@Override
+			public void forEachIndexed(VALUE_BI_FROM_INT_CONSUMER VALUE_GENERIC_TYPE action) {
+				Objects.requireNonNull(action);
+				int index = 0;
+				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
+					action.accept(index++, entry.value);
+			}
+			
 			@Override
 			public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 				Objects.requireNonNull(action);
@@ -1975,7 +2130,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			public boolean matchesAny(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 				Objects.requireNonNull(filter);
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					if(filter.VALUE_TEST_VALUE(entry.value)) return true;
+					if(filter.test(entry.value)) return true;
 				return false;
 			}
 			
@@ -1983,7 +2138,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			public boolean matchesNone(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 				Objects.requireNonNull(filter);
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					if(filter.VALUE_TEST_VALUE(entry.value)) return false;
+					if(filter.test(entry.value)) return false;
 				return true;
 			}
 			
@@ -1991,7 +2146,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			public boolean matchesAll(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 				Objects.requireNonNull(filter);
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					if(!filter.VALUE_TEST_VALUE(entry.value)) return false;
+					if(!filter.test(entry.value)) return false;
 				return true;
 			}
 			
@@ -2017,7 +2172,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			
 #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;
@@ -2029,15 +2184,15 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 					}
 					state = operator.APPLY_VALUE(state, entry.value);
 				}
-				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);
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					if(filter.VALUE_TEST_VALUE(entry.value)) return entry.value;
-				return EMPTY_VALUE;
+					if(filter.test(entry.value)) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(entry.value);
+				return VALUE_OPTIONAL.empty();
 			}
 			
 			@Override
@@ -2045,7 +2200,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				Objects.requireNonNull(filter);
 				int result = 0;
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					if(filter.VALUE_TEST_VALUE(entry.value)) result++;
+					if(filter.test(entry.value)) result++;
 				return result;
 			}
 		}
@@ -2312,6 +2467,14 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				action.accept(entry.value);
 		}
 		
+		@Override
+		public void forEachIndexed(VALUE_BI_FROM_INT_CONSUMER VALUE_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			int index = 0;
+			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+				action.accept(index++, entry.value);
+		}
+		
 		@Override
 		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -2323,7 +2486,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		public boolean matchesAny(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				if(filter.VALUE_TEST_VALUE(entry.value)) return true;
+				if(filter.test(entry.value)) return true;
 			return false;
 		}
 		
@@ -2331,7 +2494,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		public boolean matchesNone(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				if(filter.VALUE_TEST_VALUE(entry.value)) return false;
+				if(filter.test(entry.value)) return false;
 			return true;
 		}
 		
@@ -2339,7 +2502,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		public boolean matchesAll(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				if(!filter.VALUE_TEST_VALUE(entry.value)) return false;
+				if(!filter.test(entry.value)) return false;
 			return true;
 		}
 		
@@ -2365,7 +2528,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		
 		#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;
@@ -2377,15 +2540,15 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				}
 				state = operator.APPLY_VALUE(state, entry.value);
 			}
-			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);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				if(filter.VALUE_TEST_VALUE(entry.value)) return entry.value;
-			return EMPTY_VALUE;
+				if(filter.test(entry.value)) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(entry.value);
+			return VALUE_OPTIONAL.empty();
 		}
 		
 		@Override
@@ -2393,7 +2556,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			Objects.requireNonNull(filter);
 			int result = 0;
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				if(filter.VALUE_TEST_VALUE(entry.value)) result++;
+				if(filter.test(entry.value)) result++;
 			return result;
 		}
 	}
@@ -2469,6 +2632,14 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				action.accept(new BasicEntryKV_BRACES(entry.key, entry.value));
 		}
 		
+		@Override
+		public void forEachIndexed(IntObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+			Objects.requireNonNull(action);
+			int index = 0;
+			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+				action.accept(index++, new BasicEntryKV_BRACES(entry.key, entry.value));
+		}
+		
 		@Override
 		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
@@ -2477,37 +2648,37 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		}
 		
 		@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 subEntry = new BasicEntryKV_BRACES();
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
 				subEntry.set(entry.key, entry.value);
-				if(filter.getBoolean(subEntry)) return true;
+				if(filter.test(subEntry)) 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 subEntry = new BasicEntryKV_BRACES();
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
 				subEntry.set(entry.key, entry.value);
-				if(filter.getBoolean(subEntry)) return false;
+				if(filter.test(subEntry)) 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 subEntry = new BasicEntryKV_BRACES();
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
 				subEntry.set(entry.key, entry.value);
-				if(!filter.getBoolean(subEntry)) return false;
+				if(!filter.test(subEntry)) return false;
 			}
 			return true;
 		}
@@ -2523,7 +2694,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		}
 		
 		@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;
@@ -2535,30 +2706,30 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				}
 				state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
 			}
-			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 subEntry = new BasicEntryKV_BRACES();
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
 				subEntry.set(entry.key, entry.value);
-				if(filter.getBoolean(subEntry)) return subEntry;
+				if(filter.test(subEntry)) return Optional.ofNullable(subEntry);
 			}
-			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 subEntry = new BasicEntryKV_BRACES();
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
 				subEntry.set(entry.key, entry.value);
-				if(filter.getBoolean(subEntry)) result++;
+				if(filter.test(subEntry)) result++;
 			}
 			return result;
 		}

src/builder/resources/speiger/assets/collections/templates/maps/impl/tree/RBTreeMap.template

@@ -6,9 +6,19 @@ import java.util.Map;
 import java.util.Comparator;
 #endif
 import java.util.Objects;
+import java.util.Optional;
 import java.util.NoSuchElementException;
 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
 
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 #if !TYPE_OBJECT
@@ -16,11 +26,25 @@ import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 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 !VALUE_BOOLEAN || !JDK_TYPE
+import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
+#endif
+#if !TYPE_INT || !SAME_TYPE
+import speiger.src.collections.PACKAGE.functions.consumer.BI_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
-import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
-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;
@@ -33,7 +57,6 @@ import speiger.src.collections.PACKAGE.sets.NAVIGABLE_SET;
 #if TYPE_OBJECT
 import speiger.src.collections.PACKAGE.sets.SET;
 #endif
-import speiger.src.collections.PACKAGE.utils.maps.MAPS;
 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_ITERATOR;
@@ -48,17 +71,15 @@ import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_CONSUMER;
 #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 && !VALUE_OBJECT
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
@@ -280,7 +301,10 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		int compare = 0;
 		Node KEY_VALUE_GENERIC_TYPE parent = tree;
 		while(true) {
-			if((compare = compare(key, parent.key)) == 0) return parent.value;
+			if((compare = compare(key, parent.key)) == 0) {
+				if(VALUE_EQUALS(parent.value, getDefaultReturnValue())) return parent.setValue(value);
+				return parent.value;
+			}
 			if(compare < 0) {
 				if(parent.left == null) break;
 				parent = parent.left;
@@ -531,6 +555,105 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		Objects.requireNonNull(mappingFunction);
 #if TYPE_OBJECT
 		validate(key);
+#endif
+		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
+		if(entry == null) {
+			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			put(key, newValue);
+			return newValue;
+		}
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, entry.value);
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			removeNode(entry);
+			return newValue;
+		}
+#endif
+		entry.value = newValue;
+		return newValue;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
+#endif
+		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
+		if(entry == null) {
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			put(key, newValue);
+			return newValue;
+		}
+#if VALUE_OBJECT
+		if(Objects.equals(entry.value, getDefaultReturnValue())) {
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			entry.value = newValue;
+		}
+#endif
+		return entry.value;
+	}
+	
+	@Override
+	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+		Objects.requireNonNull(valueProvider);
+#if TYPE_OBJECT
+		validate(key);
+#endif
+		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
+		if(entry == null) {
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+#endif
+			put(key, newValue);
+			return newValue;
+		}
+#if VALUE_OBJECT
+		if(VALUE_EQUALS(entry.value, getDefaultReturnValue())) {
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			entry.value = newValue;
+		}
+#endif
+		return entry.value;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
+#endif
+		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
+#if !VALUE_OBJECT
+		if(entry == null) return getDefaultReturnValue();
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, entry.value);
+#else
+		if(entry == null || VALUE_EQUALS(entry.value, getDefaultReturnValue())) return getDefaultReturnValue();
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, entry.value);
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			removeNode(entry);
+			return newValue;
+		}
+#endif
+		entry.value = newValue;
+		return newValue;
+	}
+	
+#if !VALUE_OBJECT
+	@Override
+	public VALUE_TYPE COMPUTENonDefault(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
 #endif
 		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
@@ -549,20 +672,20 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	}
 	
 	@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);
 #if TYPE_OBJECT
 		validate(key);
 #endif
 		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
-			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			put(key, newValue);
 			return newValue;
 		}
 		if(Objects.equals(entry.value, getDefaultReturnValue())) {
-			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+			VALUE_TYPE newValue = mappingFunction.APPLY(key);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			entry.value = newValue;
 		}
@@ -570,20 +693,20 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	}
 	
 	@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);
 #if TYPE_OBJECT
 		validate(key);
 #endif
 		Node KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
-			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			put(key, newValue);
 			return newValue;
 		}
 		if(VALUE_EQUALS(entry.value, getDefaultReturnValue())) {
-			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			VALUE_TYPE newValue = valueProvider.VALUE_SUPPLY_GET();
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
 			entry.value = newValue;
 		}
@@ -591,7 +714,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	}
 	
 	@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);
 #if TYPE_OBJECT
 		validate(key);
@@ -607,6 +730,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		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);
@@ -627,7 +751,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	@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();
 			Node KEY_VALUE_GENERIC_TYPE subEntry = findNode(key);
 			VALUE_TYPE newValue = subEntry == null || VALUE_EQUALS(subEntry.value, getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(subEntry.value, entry.ENTRY_VALUE());
@@ -1201,6 +1325,14 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				action.accept(entry.key);
 		}
 		
+		@Override
+		public void forEachIndexed(BI_FROM_INT_CONSUMER KEY_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			int index = 0;
+			for(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));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);
@@ -1212,7 +1344,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				if(filter.TEST_VALUE(entry.key)) return true;
+				if(filter.test(entry.key)) return true;
 			return false;
 		}
 		
@@ -1220,7 +1352,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				if(filter.TEST_VALUE(entry.key)) return false;
+				if(filter.test(entry.key)) return false;
 			return true;
 		}
 		
@@ -1228,7 +1360,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				if(!filter.TEST_VALUE(entry.key)) return false;
+				if(!filter.test(entry.key)) return false;
 			return true;
 		}
 		
@@ -1254,7 +1386,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_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;
@@ -1266,15 +1398,15 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				}
 				state = operator.APPLY_KEY_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(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				if(filter.TEST_VALUE(entry.key)) return entry.key;
-			return EMPTY_KEY_VALUE;
+				if(filter.test(entry.key)) return OPTIONAL.GET_OPTIONAL(entry.key);
+			return OPTIONAL.empty();
 		}
 		
 		@Override
@@ -1282,7 +1414,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			Objects.requireNonNull(filter);
 			int result = 0;
 			for(Node KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				if(filter.TEST_VALUE(entry.key)) result++;
+				if(filter.test(entry.key)) result++;
 			return result;
 		}
 	}
@@ -1712,6 +1844,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 #endif
 			if(!inRange(key)) return getDefaultReturnValue();
 			Node KEY_VALUE_GENERIC_TYPE entry = map.findNode(key);
+#if VALUE_OBJECT
 			if(entry == null || VALUE_EQUALS(entry.value, getDefaultReturnValue())) return getDefaultReturnValue();
 			VALUE_TYPE newValue = mappingFunction.apply(key, entry.value);
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
@@ -1720,6 +1853,11 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			}
 			entry.value = newValue;
 			return newValue;
+#else
+			if(entry == null) return getDefaultReturnValue();
+			entry.value = mappingFunction.apply(key, entry.value);
+			return entry.value;
+#endif
 		}
 		
 		@Override
@@ -1899,6 +2037,14 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 					action.accept(new BasicEntryKV_BRACES(entry.key, entry.value));
 			}
 			
+			@Override
+			public void forEachIndexed(IntObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+				Objects.requireNonNull(action);
+				int index = 0;
+				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
+					action.accept(index++, new BasicEntryKV_BRACES(entry.key, entry.value));
+			}
+			
 			@Override
 			public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 				Objects.requireNonNull(action);
@@ -1907,37 +2053,37 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			}
 			
 			@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 subEntry = new BasicEntryKV_BRACES();
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
 					subEntry.set(entry.key, entry.value);
-					if(filter.getBoolean(subEntry)) return true;
+					if(filter.test(subEntry)) 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 subEntry = new BasicEntryKV_BRACES();
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
 					subEntry.set(entry.key, entry.value);
-					if(filter.getBoolean(subEntry)) return false;
+					if(filter.test(subEntry)) 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 subEntry = new BasicEntryKV_BRACES();
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
 					subEntry.set(entry.key, entry.value);
-					if(!filter.getBoolean(subEntry)) return false;
+					if(!filter.test(subEntry)) return false;
 				}
 				return true;
 			}
@@ -1953,7 +2099,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			}
 			
 			@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;
@@ -1965,30 +2111,30 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 					}
 					state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
 				}
-				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 subEntry = new BasicEntryKV_BRACES();
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
 					subEntry.set(entry.key, entry.value);
-					if(filter.getBoolean(subEntry)) return subEntry;
+					if(filter.test(subEntry)) return Optional.ofNullable(subEntry);
 				}
-				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 subEntry = new BasicEntryKV_BRACES();
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
 					subEntry.set(entry.key, entry.value);
-					if(filter.getBoolean(subEntry)) result++;
+					if(filter.test(subEntry)) result++;
 				}
 				return result;
 			}
@@ -2031,6 +2177,14 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 					action.accept(entry.value);
 			}
 			
+			@Override
+			public void forEachIndexed(VALUE_BI_FROM_INT_CONSUMER VALUE_GENERIC_TYPE action) {
+				Objects.requireNonNull(action);
+				int index = 0;
+				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
+					action.accept(index++, entry.value);
+			}
+			
 			@Override
 			public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 				Objects.requireNonNull(action);
@@ -2042,7 +2196,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			public boolean matchesAny(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 				Objects.requireNonNull(filter);
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					if(filter.VALUE_TEST_VALUE(entry.value)) return true;
+					if(filter.test(entry.value)) return true;
 				return false;
 			}
 			
@@ -2050,7 +2204,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			public boolean matchesNone(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 				Objects.requireNonNull(filter);
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					if(filter.VALUE_TEST_VALUE(entry.value)) return false;
+					if(filter.test(entry.value)) return false;
 				return true;
 			}
 			
@@ -2058,7 +2212,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			public boolean matchesAll(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 				Objects.requireNonNull(filter);
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					if(!filter.VALUE_TEST_VALUE(entry.value)) return false;
+					if(!filter.test(entry.value)) return false;
 				return true;
 			}
 			
@@ -2084,7 +2238,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_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;
@@ -2096,15 +2250,15 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 					}
 					state = operator.APPLY_VALUE(state, entry.value);
 				}
-				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);
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					if(filter.VALUE_TEST_VALUE(entry.value)) return entry.value;
-				return EMPTY_VALUE;
+					if(filter.test(entry.value)) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(entry.value);
+				return VALUE_OPTIONAL.empty();
 			}
 			
 			@Override
@@ -2112,7 +2266,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				Objects.requireNonNull(filter);
 				int result = 0;
 				for(Node KEY_VALUE_GENERIC_TYPE entry = subLowest(), last = subHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					if(filter.VALUE_TEST_VALUE(entry.value)) result++;
+					if(filter.test(entry.value)) result++;
 				return result;
 			}
 		}
@@ -2379,6 +2533,14 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				action.accept(entry.value);
 		}
 		
+		@Override
+		public void forEachIndexed(VALUE_BI_FROM_INT_CONSUMER VALUE_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
+			int index = 0;
+			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+				action.accept(index++, entry.value);
+		}
+		
 		@Override
 		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
@@ -2390,7 +2552,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		public boolean matchesAny(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				if(filter.VALUE_TEST_VALUE(entry.value)) return true;
+				if(filter.test(entry.value)) return true;
 			return false;
 		}
 		
@@ -2398,7 +2560,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		public boolean matchesNone(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				if(filter.VALUE_TEST_VALUE(entry.value)) return false;
+				if(filter.test(entry.value)) return false;
 			return true;
 		}
 		
@@ -2406,7 +2568,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		public boolean matchesAll(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				if(!filter.VALUE_TEST_VALUE(entry.value)) return false;
+				if(!filter.test(entry.value)) return false;
 			return true;
 		}
 		
@@ -2432,7 +2594,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_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;
@@ -2444,15 +2606,15 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				}
 				state = operator.APPLY_VALUE(state, entry.value);
 			}
-			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);
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				if(filter.VALUE_TEST_VALUE(entry.value)) return entry.value;
-			return EMPTY_VALUE;
+				if(filter.test(entry.value)) return VALUE_OPTIONAL.GET_OPTIONAL_VALUE(entry.value);
+			return VALUE_OPTIONAL.empty();
 		}
 		
 		@Override
@@ -2460,7 +2622,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			Objects.requireNonNull(filter);
 			int result = 0;
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				if(filter.VALUE_TEST_VALUE(entry.value)) result++;
+				if(filter.test(entry.value)) result++;
 			return result;
 		}
 	}
@@ -2536,6 +2698,14 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				action.accept(new BasicEntryKV_BRACES(entry.key, entry.value));
 		}
 		
+		@Override
+		public void forEachIndexed(IntObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
+			Objects.requireNonNull(action);
+			int index = 0;
+			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+				action.accept(index++, new BasicEntryKV_BRACES(entry.key, entry.value));
+		}
+		
 		@Override
 		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
@@ -2544,37 +2714,37 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		}
 		
 		@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 subEntry = new BasicEntryKV_BRACES();
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
 				subEntry.set(entry.key, entry.value);
-				if(filter.getBoolean(subEntry)) return true;
+				if(filter.test(subEntry)) 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 subEntry = new BasicEntryKV_BRACES();
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
 				subEntry.set(entry.key, entry.value);
-				if(filter.getBoolean(subEntry)) return false;
+				if(filter.test(subEntry)) 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 subEntry = new BasicEntryKV_BRACES();
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
 				subEntry.set(entry.key, entry.value);
-				if(!filter.getBoolean(subEntry)) return false;
+				if(!filter.test(subEntry)) return false;
 			}
 			return true;
 		}
@@ -2590,7 +2760,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		}
 		
 		@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;
@@ -2602,30 +2772,30 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				}
 				state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
 			}
-			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 subEntry = new BasicEntryKV_BRACES();
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
 				subEntry.set(entry.key, entry.value);
-				if(filter.getBoolean(subEntry)) return subEntry;
+				if(filter.test(subEntry)) return Optional.ofNullable(subEntry);
 			}
-			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 subEntry = new BasicEntryKV_BRACES();
 			for(Node KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
 				subEntry.set(entry.key, entry.value);
-				if(filter.getBoolean(subEntry)) result++;
+				if(filter.test(subEntry)) result++;
 			}
 			return result;
 		}

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
@@ -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
 	}
 	
 	/**
@@ -1434,7 +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
 		}
 		
 		/**
@@ -1463,11 +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
@@ -1476,6 +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
@@ -1484,6 +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
@@ -1492,6 +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
@@ -1501,6 +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
@@ -1510,6 +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
@@ -1518,6 +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
@@ -1526,6 +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
@@ -1543,6 +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
@@ -1559,6 +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
@@ -37,6 +39,8 @@ public interface NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE extends SORTED_MAP KEY_VAL
 	/** @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
@@ -59,6 +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 +1,15 @@
 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
@@ -15,7 +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.
@@ -35,6 +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
@@ -95,13 +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
@@ -127,6 +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

@@ -10,7 +10,9 @@ import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
 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
@@ -37,6 +39,7 @@ public interface SORTED_MAP KEY_VALUE_GENERIC_TYPE extends SortedMap<CLASS_TYPE,
 	@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
@@ -59,6 +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;
@@ -1192,6 +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);
@@ -1203,7 +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;
 		}
@@ -1212,7 +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;
 		}
@@ -1221,7 +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;
 		}
@@ -1250,7 +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;
@@ -1262,16 +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
@@ -1279,7 +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;
 		}

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;
@@ -63,7 +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);
 	}
 	
 	/**
@@ -77,6 +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.
@@ -120,6 +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);
@@ -142,6 +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);
@@ -213,13 +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];
 	}
@@ -348,7 +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);
@@ -359,7 +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
@@ -391,6 +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);
@@ -402,7 +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;
 	}
@@ -411,7 +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;
 	}
@@ -420,18 +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
@@ -458,7 +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;
@@ -470,7 +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
@@ -478,7 +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;
 	}
@@ -499,13 +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();
 	}
 	
@@ -539,6 +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]);
@@ -557,45 +653,57 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	}
 		
 	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();
-			--index;
-			return data[(lastReturned = index)];
+			if(forward) {
+				index--;
+				return data[(lastReturned = index)];
+			}
+			lastReturned = 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
@@ -624,15 +732,23 @@ 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");
+			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;
 		}
 		
-		@Override
-		public int back(int amount) {
-			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+		private int moveBackwards(int amount) {
 			int steps = Math.min(amount, index);
 			index -= steps;
 			if(steps > 0) lastReturned = Math.min(index, size()-1);

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];
@@ -504,48 +578,60 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		
 		@Override
 		public int skip(int amount) {
-			int result = 0;
-			while(next != -1 && result != amount) {
-				current = previous = next;
-				next = (int)(links[current]);
-				result++;
-			}
+			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++;
 			}
-			if(index >= 0) index-=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
@@ -554,8 +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 = next = previous;
-			previous = (int)(links[current] >> 32);
+			if(forward) moveBackwards();
+			else moveForwards();
 			if(index >= 0) index--;
 			return keys[current];
 		}
@@ -563,12 +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 = previous = next;
-			next = (int)(links[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;
@@ -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(isEmpty() || 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(isEmpty() || 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);
@@ -363,13 +458,13 @@ 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;
 		onNodeRemoved(pos);
@@ -385,13 +480,13 @@ 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;
 		onNodeRemoved(pos);
@@ -522,6 +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);
@@ -532,6 +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);
@@ -547,7 +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;
@@ -558,7 +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;
@@ -569,7 +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;
@@ -603,7 +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;
@@ -616,18 +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
@@ -636,7 +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;
@@ -644,7 +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
@@ -669,16 +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];
@@ -707,48 +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 = 0;
-			while(next != -1 && result != amount) {
-				current = previous = next;
-				next = (int)(links[current]);
-				result++;
-			}
+			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++;
 			}
-			if(index >= 0) index-=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
@@ -797,8 +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 = next = previous;
-			previous = (int)(links[current] >> 32);
+			if(forward) moveBackwards();
+			else moveForwards();
 			if(index >= 0) index--;
 			return keys[current];
 		}
@@ -806,12 +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 = previous = next;
-			next = (int)(links[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;
 
@@ -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(isEmpty() || 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(isEmpty() || 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);
@@ -334,13 +429,13 @@ 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;
 		onNodeRemoved(pos);
@@ -356,13 +451,13 @@ 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;
 		onNodeRemoved(pos);
@@ -377,6 +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);
@@ -387,6 +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);
@@ -402,7 +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;
@@ -413,7 +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;
@@ -424,7 +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;
@@ -458,7 +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;
@@ -471,18 +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
@@ -491,7 +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;
@@ -615,7 +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
@@ -640,16 +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];
@@ -678,48 +828,60 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		
 		@Override
 		public int skip(int amount) {
-			int result = 0;
-			while(next != -1 && result != amount) {
-				current = previous = next;
-				next = (int)(links[current]);
-				result++;
-			}
+			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++;
 			}
-			if(index >= 0) index-=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
@@ -768,8 +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 = next = previous;
-			previous = (int)(links[current] >> 32);
+			if(forward) moveBackwards();
+			else moveForwards();
 			if(index >= 0) index--;
 			return keys[current];
 		}
@@ -777,12 +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 = previous = next;
-			next = (int)(links[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
@@ -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;
@@ -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) {
@@ -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;
@@ -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;
@@ -1253,6 +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);
@@ -1264,7 +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;
 		}
@@ -1273,7 +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;
 		}
@@ -1282,7 +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;
 		}
@@ -1311,7 +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;
@@ -1323,16 +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
@@ -1340,7 +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;
 		}

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)
@@ -183,6 +852,8 @@ 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
@@ -207,13 +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)
@@ -308,6 +1007,8 @@ 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
@@ -329,9 +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); }
 	}

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 -1;
-		}
-		
+		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

@@ -2,10 +2,18 @@ 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
@@ -16,8 +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;
 
 /**
@@ -35,7 +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
@@ -60,7 +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
 	}
 	
 	/**
@@ -71,7 +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
 	}
 	
 	/**
@@ -92,6 +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
@@ -106,6 +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);
@@ -141,8 +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
@@ -164,7 +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));
@@ -231,6 +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;
@@ -271,6 +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) {
@@ -387,11 +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); } }
 		
@@ -509,11 +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(); }
 		
@@ -602,6 +660,18 @@ 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; }
 		
@@ -615,6 +685,9 @@ public class LISTS
 		@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

@@ -2,31 +2,30 @@ package speiger.src.collections.PACKAGE.utils;
 
 import java.util.NoSuchElementException;
 import java.util.Set;
-#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
+#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
@@ -51,7 +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
@@ -75,6 +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
@@ -98,6 +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
@@ -121,6 +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
@@ -144,6 +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
@@ -154,6 +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
@@ -164,6 +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
@@ -174,6 +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
@@ -254,7 +263,7 @@ public class SETS
 		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;
@@ -340,6 +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;
@@ -349,6 +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
@@ -360,19 +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;
@@ -406,6 +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)
@@ -434,6 +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;
@@ -597,6 +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;
@@ -632,6 +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
@@ -643,19 +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;
@@ -704,5 +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
@@ -14,45 +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
@@ -123,8 +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
@@ -147,6 +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
@@ -169,6 +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
@@ -191,6 +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
@@ -213,6 +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
@@ -223,6 +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
@@ -233,6 +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
@@ -253,6 +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
@@ -330,6 +349,16 @@ public class MAPS
 		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
@@ -344,7 +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
@@ -392,6 +421,16 @@ public class MAPS
 		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
@@ -425,6 +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)
@@ -496,6 +536,8 @@ public class MAPS
 		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)
@@ -514,6 +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(); }
@@ -534,13 +580,25 @@ public class MAPS
 		@Override
 		public VALUE_TYPE LAST_ENTRY_VALUE() { return map.LAST_ENTRY_VALUE(); }
 		@Override
+		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());
@@ -548,6 +606,8 @@ public class MAPS
 		}
 	}
 	
+#endif
+#if SORTED_MAP_FEATURE
 	/**
 	 * The Unmodifyable Sorted Map implementation that is sued for the unmodifyableMap function
 	 * @Type(T)
@@ -587,6 +647,7 @@ public class MAPS
 		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)
@@ -637,6 +698,16 @@ public class MAPS
 		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
@@ -669,7 +740,7 @@ public class MAPS
 		}
 	}
 	
-	
+#if ORDERED_MAP_FEATURE
 	/**
 	 * The Unmodifyable Ordered Set implementation for the Unmodifyable Ordered Map implementation
 	 * @Type(T)
@@ -684,6 +755,10 @@ public class MAPS
 			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
@@ -697,17 +772,20 @@ public class MAPS
 		@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 first() { return set.first(); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getFirst() { return set.getFirst(); }
 		@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 last() { return set.last(); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE getLast() { return set.getLast(); }
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLast() { throw new UnsupportedOperationException(); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE removeLast() { throw new UnsupportedOperationException(); }
 	}
 	
+#endif
 	/**
 	 * The Unmodifyable Set implementation for the Unmodifyable Map implementation
 	 * @Type(T)
@@ -741,6 +819,7 @@ public class MAPS
 		
 	}
 	
+#if SORTED_MAP_FEATURE
 	/**
 	 * The Synchronized Navigable Map implementation used by the synchronizedMap helper function
 	 * @Type(T)
@@ -859,6 +938,8 @@ public class MAPS
 #endif
 	}
 	
+#endif
+#if ORDERED_MAP_FEATURE
 	/**
 	 * The Synchronized Ordered Map implementation used by the synchronizedMap helper function
 	 * @Type(T)
@@ -882,6 +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); } }
@@ -902,13 +987,25 @@ public class MAPS
 		@Override
 		public VALUE_TYPE LAST_ENTRY_VALUE() { synchronized(mutex) { return map.LAST_ENTRY_VALUE(); } }
 		@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.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);
@@ -916,6 +1013,8 @@ public class MAPS
 		}
 	}
 	
+#endif
+#if SORTED_MAP_FEATURE
 	/**
 	 * The Synchronized Sorted Map implementation used by the synchronizedMap helper function
 	 * @Type(T)
@@ -977,6 +1076,7 @@ public class MAPS
 #endif
 	}
 	
+#endif
 	/**
 	 * The Synchronized Map implementation used by the synchronizedMap helper function
 	 * @Type(T)
@@ -1062,6 +1162,16 @@ public class MAPS
 		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
@@ -1148,5 +1258,4 @@ public class MAPS
 		public void forEach(BiConsumer<? super CLASS_TYPE, ? super CLASS_VALUE_TYPE> action) { synchronized(mutex) { map.forEach(action); } }
 #endif
 	}
-#endif
 }