Build Fixes & Build Release Doc update

-Added: Tests for Lists and Sets.
-Fixed: SubLists are now stable (they weren't before)
-Fixed: All the bugs that the unit tests found so far.
-Updated: ReadMe/Changelog

.classpath

@@ -38,7 +38,7 @@
 			<attribute name="gradle_used_by_scope" value="builder"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8/"/>
 	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
 	<classpathentry kind="output" path="bin/default"/>
 </classpath>

.gitignore

@@ -11,23 +11,15 @@ gradle-app.setting
 
 # # Work around https://youtrack.jetbrains.com/issue/IDEA-116898
 # gradle/wrapper/gradle-wrapper.properties
+
 .classpath
 .project
 
-# IntelliJ
+---> Custom
-
-.idea/
-out/
-*.iws
-*.ipr
-*.iml
-
-# ---> Custom
 !/libs/
 /.settings/
 /bin/
 /storage/
-
 #Generated Code
 /src/main/java/speiger/src/collections/booleans/*
 /src/main/java/speiger/src/collections/bytes/*

Changelog.md

@@ -1,5 +1,70 @@
 # Changelog of versions
 
+### Version 0.5.0
+- Added: 2 Helper functions to find out how many bits are required to store a Number.
+- Added: pour function directly into Iterable which allows to collect all elements in the Iterable directly.
+- Added: The new ToArray method from Java9 and newer into the library. Using a functional interface. (Just a backport)
+- Changed: Reworked how the Map Builder functions are created. They are now in a SubClass that moves them out of the way. Less Clutter. (This might break things if that was used before)
+- Added: Map Builder that allows now to Build Maps like Guava ImmutableMaps can be build. Note: This has a slight performance overhead.
+- Added: Unmodifiable and Synchronize wrapper functions direclty into Collection Interfaces. This is mostly a quality of life thing.
+- Added: Unmodifiable and Synchronized Wrapper Collections can now be cloned. They clone the underlying map which doesn't break functionality. (Had a usecase for it)
+- Added: A boxed putAll array variant.
+- Fixed: EnumMaps didn't keep track of their size and now got proper care and implementations as needed. There might be more work required but at least the core functionality is now up to date.
+- Added: Tests for the new Stream replace functions to ensure no bugs are left.
+- Fixed: Custom HashSet reduce function with a default value was checking incorrectly for present keys.
+- Added: Guava TestSuit
+- Fixed: HashCode and toString method would crash if the Object Key/Value was null
+- Added: AbstractTypeCollection now delegates the contains check to type-specific Collections if it detects it.
+- Fixed: Map.Entry toString wasn't writing values not like it should do.
+- Fixed: Set.hashCode now is the sum of the elements instead of a Unique HashCode based on the elements.
+- Fixed: Added missing NonNull Checks.
+- Fixed: Custom/OpenHashMap.containsValue implementation was wrong.
+- Fixed: Custom/OpenHashMap.compute/present/absent now works how it is specified in the Java Documentation
+- Fixed: Custom/OpenHashMap.merge/BulkMerge now works how it is specified in the Java Documentation
+- Fixed: Custom/Linked/OpenHashMap.keySet.remove was causing a infinite loop.
+- Fixed: Custom/Linked/OpenHashMap.entrySet.contains was not correctly comparing the entry.
+- Fixed: Custom/OpenHashMap.mapIterator now no longer crashes in certain cases.
+- Added: Custom/LinkedOpenHashMap now takes use of the improved Iterator it has for containsValue
+- Fixed: CustomOpenHashMap.keySet.forEach was basically putting out keys even if they were present
+- Fixed: ImmutableMaps issues thanks to the tests. Roughly the same as the rest of the maps
+- Fixed: RB/AVLTreeMaps issues. Roughly the same as the rest of the maps
+- Fixed: SubLists are now properly implemented.
+- Fixed: HashSet Iterator bugs now fixed... That was Painful.
+- Added: Tests for Lists and Sets
+
+### Version 0.4.5
+- Added: removeAll/retainAll(Collection c, Consumer r) which receives all the elements that got deleted from the collection
+- Fixed: Supplier get function wasn't referencing original function.
+- Added: addIfPresent/Absent to lists
+- Added: distinct, limit and peek iterators
+- Added: Iterable's can now reduce its contents
+- Added: Better ForEach support for IterableWrappers so a Iterator chain is not created
+- Added: SwapRemove to Lists which moves the last element into the desired space to be deleted
+- Added: More Test cases
+
+### Version 0.4.4
+- Fixed: ObjectArrayList.of was causing crashes because of a Poor implementation.
+- Added: Unsorted HashMaps/Sets now throw Concurrent exceptions if they were modified during a rehash.
+- Added: Array/Collection version of enqueue and enqueueFirst to PriorityQueues.
+- Added: fillBuffer function into PrimitiveLists which allow to optimize JavaNio buffers if needed.
+
+### Version 0.4.3
+- Added: Wrapper now support the Optimized Lambda replacer functions to improve performance.
+- Added: FIFO Queue has now a minimum capacity and that is now checked more consistently.
+
+### Version 0.4.2
+- Added: Lists/Sets/Maps/PriorityQueues are now copy-able. with the new copy() function.
+	Note: subLists/subMaps/subSets or synchronize/unmodifyable wrappers do not support that function.
+- Fixed: PriorityQueues didn't implement: hashCode/equals/toString
+
+### Version 0.4.1
+- Changed: ForEach with input now provides input, value instead of value, input, this improves the usage of method references greatly
+- Added: addAll with Array-types in collections.
+- Added: Java Iterator/Iterable support for Stream replacing methods
+- Added: Suppliers.
+- Added: SupplyIfAbsent. It is ComputeIfAbsent but using suppliers
+- Added: Count feature into Iterable
+- Fixed: A couple bugs with the new StreamReplacing functions in LinkedCollections Iterating to Infinity
 
 ### Version 0.4.0
 - Changed: Iterable specific helper functions were moved out of Iterators and moved into Iterables

README.md

@@ -11,27 +11,53 @@ But its focus is a different one.
 - EnumMap
 - Immutable Maps/Lists/Sets
 - Priority Queue
-- Streams
+- Streams & Functional Queries
 - SplitIterators
 - Iterators
 - Pairs
+- Unary/Functions
+- Suppliers
+- Bi/Consumers
+
+
+## Current Level of Stability
+Since this is a relatively new Library, stability was not perfect and some areas are not perfect yet.     
+Thanks to [ben-manes](https://github.com/ben-manes) we now have Roughly 16000 test covering Maps/Sets/Lists.     
+These tests cover Javas Collection API completely and ensuring a Stable implementation.     
+These freshly added tests allowed me to squash thousands of issues according to Googles Test Library (Guava-Tests).     
+These will be expanded on as time goes on.     
+
+One know aspect of Instability is SubSets and SubMaps. They require full rewrites to be fully stable.     
+So it is not advised to use them until these issues are addressed.     
+PriorityQueues are tested separately and ensure basic functionality though GuavaTests are planned.     
+They just require a custom test implementation.     
+
+As a summary: Stability is good/excellent, unless you need SubSets/SubMaps     
 
 ## Specialized Functions
 New Specialized functions that were added to increase performance or reduce allocations or Quality Of life.
 To highlight things that may be wanted.
 - Iterable:
-	- map/flatMap/arrayFlatMap: A Light weight version of Stream.map()
+	- map/flatMap/arrayFlatMap: A Light weight version of Stream.map().
 	- findFirst: Allows to find the first element of a Predicated Iterable.
 	- filter: Allows to filter unwanted elements for wrapped Iterable
 	- matchAny/matchNone/matchAll: Allows to find elements in a collection.
+	- count: counts all valid elements in a collection.
 	- forEach: Allows to input a second element into a forEach move allowing for more flexibility for Method References
+	- reduce/limit/peek/distinct: Light Versions of the Stream variant, to reduce Stream usage.
+	- pour: a function that allows to collect all elements within the Collection
 - Collection:
 	- containsAny: Allows to test if another collection contains an of the elements of the tested collection.
 	- primitiveStream: Provides access to the closest Java Stream Type.
+	- copy: shallowCopies the collection, used instead of clone because this is better to use.
+		(subCollections not supported for obvious reasons)
+	- toArray: the ToArray function from Java9 and newer that uses a Functional interface and can use a method reference
 - List:
 	- add/get/removeElements (From FastUtil): Allows to add/get/remove an Array into/from a list. Just with less overhead
 	- extractElements: Allows to remove a Range of elements from the List and get what was removed.
 	- Unstable Sort(From FastUtil): Uses a faster but not stable sort (Quick-Sort as example) to sort the list.
+	- addIfAbsent/Present: adds a element only if absent/present in the list
+	- swapRemove: deletes a desired element and inserts the last element in its place instead of leftshifting elements.
 - SortedSet:
 	- addAndMoveToFirst/Last (From FastUtil but moved to Interface): Allows to add a element to the first/last position of a sorted set.
 	- moveToFirst/Last: Moves the desired element at the first/last position of the SortedSet.
@@ -43,6 +69,7 @@ To highlight things that may be wanted.
 	- addToAll: Same as addTo but bulkVersion.
 	- removeOrDefault: removes a Element and if not present returns the default value instead of the present value.
 	- mergeAll: BulkVersion of Merge function.
+	- supplyIfAbsent: A Supplier based computeIfAbsent
 - Sorted Map:
 	- addAndMoveToFirst/Last (From FastUtil but moved to Interface): Allows to add a element to the first/last position of a sorted Map.
 	- moveToFirst/Last: Moves the desired element at the first/last position of the Map.
@@ -56,6 +83,9 @@ Any 0.x.0 version (Minor) can be reason for massive changes including API.
 To ensure that problems can be dealt with even if it is breaking the current API.     
 Any breaking changes will be Documented (once 1.0 is released)     
 
+Also to save space every 0.0.x (Patch) that is 2 Minor Versions behind will be removed. 
+So if 0.5.0 is released every 0.3.x patch will be deleted, except for the last patch for that minor version.
+
 # How to install
 Using Gradle:
 ```gradle
@@ -65,18 +95,21 @@ repositories {
     }
 }
 dependencies {
-	compile 'de.speiger:Primitive-Collections:0.4.0'
+	compile 'de.speiger:Primitive-Collections:0.5.0'
 }
 ```
 Direct:
 
 | Version 	| Jar                                                                                                                          	| Sources                                                                                                                              	| Java Doc                                                                                                                             	|
 |---------	|------------------------------------------------------------------------------------------------------------------------------	|--------------------------------------------------------------------------------------------------------------------------------------	|--------------------------------------------------------------------------------------------------------------------------------------	|
+| 0.5.0   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.0/Primitive-Collections-0.5.0.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.0/Primitive-Collections-0.5.0-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.5.0/Primitive-Collections-0.5.0-javadoc.jar) 	|
+| 0.4.5   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.5/Primitive-Collections-0.4.5.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.5/Primitive-Collections-0.4.5-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.5/Primitive-Collections-0.4.5-javadoc.jar) 	|
+| 0.4.4   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.4/Primitive-Collections-0.4.4.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.4/Primitive-Collections-0.4.4-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.4/Primitive-Collections-0.4.4-javadoc.jar) 	|
+| 0.4.3   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.3/Primitive-Collections-0.4.3.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.3/Primitive-Collections-0.4.3-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.3/Primitive-Collections-0.4.3-javadoc.jar) 	|
+| 0.4.2   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.2/Primitive-Collections-0.4.2.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.2/Primitive-Collections-0.4.2-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.2/Primitive-Collections-0.4.2-javadoc.jar) 	|
+| 0.4.1   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.1/Primitive-Collections-0.4.1.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.1/Primitive-Collections-0.4.1-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.1/Primitive-Collections-0.4.1-javadoc.jar) 	|
 | 0.4.0   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.0/Primitive-Collections-0.4.0.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.0/Primitive-Collections-0.4.0-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.4.0/Primitive-Collections-0.4.0-javadoc.jar) 	|
 | 0.3.6   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.6/Primitive-Collections-0.3.6.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.6/Primitive-Collections-0.3.6-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.6/Primitive-Collections-0.3.6-javadoc.jar) 	|
-| 0.3.5   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.5/Primitive-Collections-0.3.5.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.5/Primitive-Collections-0.3.5-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.5/Primitive-Collections-0.3.5-javadoc.jar) 	|
-| 0.3.4   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.4/Primitive-Collections-0.3.4.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.4/Primitive-Collections-0.3.4-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.4/Primitive-Collections-0.3.4-javadoc.jar) 	|
-| 0.3.3   	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.3/Primitive-Collections-0.3.3.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.3/Primitive-Collections-0.3.3-sources.jar) 	| [Download](https://maven.speiger.com/repository/main/de/speiger/Primitive-Collections/0.3.3/Primitive-Collections-0.3.3-javadoc.jar) 	|
 
 # Contributing
 If you want to contribute.      
@@ -101,5 +134,5 @@ to build the jar:
 do not combine the commands because they can not be executed at the same time.      
 
 ## Current Down Sides (Random order)
-- Testing for Sub Maps/Sets/Lists are only in a very basic way tested
+- SubMaps/Set implementation isn't perfect right now. This will be addressed slowly due to rewrites required.     
 - Documentation is only present at the lowest level for most cases and needs a typo fixing.

build.gradle

@@ -1,7 +1,9 @@
-buildscript {
+plugins {
-	def config = new Properties()
+    id 'java-library'
-	file('build.properties').withInputStream(config.&load)
+}
-	project.ext.config = config
+
+tasks.withType(JavaCompile) {
+    options.encoding = 'UTF-8'
 }
 
 apply plugin: 'java'
@@ -10,50 +12,25 @@ apply plugin: 'maven'
 
 repositories {
     mavenCentral()
-	google()
-
     maven {
         url = "https://maven.speiger.com/repository/main"
     }
 }
 
-archivesBaseName = config.project_name
+archivesBaseName = 'Primitive Collections'
-version = config.project_version
+version = '0.5.0';
-group = config.project_group
+
-sourceCompatibility = config.java_source_version
+sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8'
-targetCompatibility = config.java_target_version
 
 javadoc {
     options.tags = [ "implSpec", "note" ] 
-	failOnError = false
-	options.memberLevel = JavadocMemberLevel.PUBLIC
-	options.quiet()
 }
 
 eclipse {
 	classpath {
 		downloadJavadoc = true
 		downloadSources = true
-
-		file {
-			whenMerged {
-				//Enforce a custom container and allowing access to the sun.misc package which is nessesary for EnumMaps
-				entries.find{ it.kind == 'con' && it.path.startsWith('org.eclipse.jdt')}.path = 'org.eclipse.jdt.launching.JRE_CONTAINER';
 	}
-		}
-	}
-}
-
-tasks.withType(JavaCompile) {
-	sourceCompatibility = config.java_source_version
-	targetCompatibility = config.java_target_version
-	options.encoding = 'UTF-8'
-}
-
-compileJava {
-    options.compilerArgs << '-XDignore.symbol.file'
-    options.fork = true
-    options.forkOptions.executable = 'javac' // may not needed on 1.8
 }
 
 sourceSets {
@@ -65,12 +42,11 @@ configurations {
 }
 
 dependencies {
-	implementation group: 'org.jetbrains', name: 'annotations', version: config.annotations_version
+	builderCompile 'de.speiger:Simple-Code-Generator:1.0.5'
-
+	runtimeOnly 'de.speiger:Simple-Code-Generator:1.0.5'
-	builderCompile group: 'de.speiger', name: 'Simple-Code-Generator', version: config.scg_version
-	runtimeOnly group: 'de.speiger', name: 'Simple-Code-Generator', version: config.scg_version
-
     testImplementation 'junit:junit:4.12'
+    testImplementation 'com.google.guava:guava-testlib:31.0.1-jre'
+    
 }
 
 task generateSource(type: JavaExec) {
@@ -98,6 +74,10 @@ task srcJar(type: Jar) {
     classifier = 'sources'
 }
 
+javadoc.failOnError = false
+javadoc.options.memberLevel = JavadocMemberLevel.PUBLIC
+javadoc.options.quiet()
+
 artifacts {
     archives javadocJar
     archives srcJar
@@ -117,8 +97,8 @@ uploadArchives {
 		}
 		pom {
 			version = project.version
-			artifactId = config.artifact_id
+			artifactId = project.archivesBaseName.replace(" ", "-")
-			groupId = config.artifact_group
+			groupId = 'de.speiger'
 			project {
 				licenses {
 					license {

build.properties

@@ -1,13 +0,0 @@
-project_name=PrimitiveCollections
-project_id=primitivecollections
-project_group=speiger.src.collections
-project_version=0.4.0
-
-artifact_group=de.speiger
-artifact_id=Primitive-Collections
-
-java_source_version=11
-java_target_version=8
-annotations_version=22.0.0
-
-scg_version=1.0.4

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

@@ -75,6 +75,7 @@ public class GlobalVariables
 		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("<>");
@@ -127,8 +128,8 @@ public class GlobalVariables
 		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() ? "%s.hashCode()" : type.getClassType(value)+".hashCode(%s)").removeBraces();
+		addInjectMapper(fix+"_TO_HASH", type.isObject() ? "Objects.hashCode(%s)" : type.getClassType(value)+".hashCode(%s)").removeBraces();
-		addInjectMapper(fix+"_TO_STRING", type.isObject() ? "%s.toString()" : type.getClassType(value)+".toString(%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");
@@ -147,11 +148,13 @@ public class GlobalVariables
 	{
 		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");
@@ -183,6 +186,7 @@ public class GlobalVariables
 		
 		//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");
@@ -203,7 +207,8 @@ public class GlobalVariables
 		addClassMapper("LIST_ITERATOR", "ListIterator");
 		addClassMapper("BI_ITERATOR", "BidirectionalIterator");
 		addBiClassMapper("BI_CONSUMER", "Consumer", "");
-		addClassMapper("BI_OBJECT_CONSUMER", "ObjectConsumer");
+		addClassMapper("BI_TO_OBJECT_CONSUMER", "ObjectConsumer");
+		addAbstractMapper("BI_FROM_OBJECT_CONSUMER", "Object%sConsumer");
 		addClassMapper("SPLIT_ITERATOR", "Splititerator");
 		addClassMapper("ITERATOR", "Iterator");
 		addClassMapper("ITERABLE", "Iterable");
@@ -224,6 +229,8 @@ public class GlobalVariables
 		addClassMapper("SET", "Set");
 		addClassMapper("STRATEGY", "Strategy");
 		addClassMapper("STACK", "Stack");
+		addClassMapper("SUPPLIER", "Supplier");
+		addAbstractMapper("SINGLE_UNARY_OPERATOR", "%1$s%1$sUnaryOperator");
 		addBiClassMapper("UNARY_OPERATOR", "UnaryOperator", "");
 		if(type.isObject())
 		{
@@ -249,6 +256,7 @@ public class GlobalVariables
 	
 	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());
@@ -274,10 +282,12 @@ public class GlobalVariables
 		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");
@@ -286,6 +296,7 @@ public class GlobalVariables
 		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");

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

@@ -78,6 +78,7 @@ public class PrimitiveCollectionsBuilder extends TemplateProcessor
 		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");

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

@@ -3,9 +3,13 @@ package speiger.src.collections.PACKAGE.collections;
 import java.util.Collection;
 import java.util.Objects;
 import java.util.AbstractCollection;
+#if TYPE_OBJECT
+import java.util.function.Consumer;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 #if !TYPE_OBJECT
+import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 #endif
 
@@ -35,6 +39,9 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 		return modified;
 	}
 	
+	@Override
+	public COLLECTION KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+	
 #if !TYPE_OBJECT
 	/** {@inheritDoc}
 	 * <p>This default implementation delegates to the corresponding type-specific function.
@@ -76,12 +83,19 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 	@Override
 	public boolean containsAll(COLLECTION KEY_GENERIC_TYPE c) {
 		Objects.requireNonNull(c);
+		if(c.isEmpty()) return true;
 		for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();)
 			if(!contains(iter.NEXT()))
 				return false;
 		return true;
 	}
 	
+	@Override
+	public boolean containsAll(Collection<?> c) {
+		Objects.requireNonNull(c);
+		return c instanceof COLLECTION ? containsAll((COLLECTION KEY_GENERIC_TYPE)c) : super.containsAll(c);
+	}
+	
 	/**
 	 * This implementation iterates over the elements of the collection and checks if they are stored in this collection
 	 * @param c the elements that should be checked for
@@ -93,6 +107,7 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 	@Primitive
 	public boolean containsAny(Collection<?> c) {
 		Objects.requireNonNull(c);
+		if(c.isEmpty()) return false;
 		for(Object e : c) 
 			if(contains(e))
 				return true;
@@ -108,6 +123,7 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 	@Override
 	public boolean containsAny(COLLECTION KEY_GENERIC_TYPE c) {
 		Objects.requireNonNull(c);
+		if(c.isEmpty()) return false;
 		for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();) 
 			if(contains(iter.NEXT()))
 				return true;
@@ -150,6 +166,7 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 	@Override
 	public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c) {
 		Objects.requireNonNull(c);
+		if(c.isEmpty()) return false;
 		boolean modified = false;
 		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
 			if(c.contains(iter.NEXT())) {
@@ -160,6 +177,23 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 		return modified;
 	}
 
+	@Override
+	public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) {
+		Objects.requireNonNull(c);
+		if(c.isEmpty()) return false;
+		Objects.requireNonNull(r);
+		boolean modified = false;
+		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
+			KEY_TYPE e = iter.NEXT();
+			if(c.contains(e)) {
+				r.accept(e);
+				iter.remove();
+				modified = true;
+			}
+		}
+		return modified;
+	}
+	
 	/**
 	 * A Type-Specific implementation of retainAll. This Implementation iterates over all elements and removes them as they were not found in the other collection.
 	 * @param c the elements that should be kept
@@ -184,6 +218,27 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 		return modified;
 	}
 	
+	@Override
+	public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) {
+		Objects.requireNonNull(c);
+		Objects.requireNonNull(r);
+		if(c.isEmpty()) {
+			boolean modified = !isEmpty();
+			forEach(r);
+			clear();
+			return modified;
+		}
+		boolean modified = false;
+		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
+			KEY_TYPE e = iter.NEXT();
+			if(!c.contains(e)) {
+				iter.remove();
+				modified = true;
+			}
+		}
+		return modified;
+	}
+	
 #if !TYPE_OBJECT
 	/**
 	 * A Type-Specific implementation of toArray that links to {@link #TO_ARRAY(KEY_TYPE[])} with a newly created array.

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

@@ -8,12 +8,16 @@ import java.util.function.Predicate;
 import java.util.stream.JAVA_STREAM;
 import java.util.stream.StreamSupport;
 #endif
+#if TYPE_OBJECT
+import java.util.function.Consumer;
+import speiger.src.collections.ints.functions.function.Int2ObjectFunction;
+#else
+import speiger.src.collections.PACKAGE.functions.CONSUMER;
+#endif
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
-
+import speiger.src.collections.PACKAGE.utils.COLLECTIONS;
-#if TYPE_BYTE || TYPE_SHORT || TYPE_CHAR || TYPE_FLOAT
 import speiger.src.collections.utils.SanityChecks;
 
-#endif
 /**
  * A Type-Specific {@link Collection} that reduces (un)boxing
  * @Type(T)
@@ -36,6 +40,38 @@ public interface COLLECTION KEY_GENERIC_TYPE extends Collection<CLASS_TYPE>, ITE
 	 */
 	public boolean addAll(COLLECTION KEY_GENERIC_TYPE c);
 	
+	/**
+	 * A Type-Specific Array based addAll method to reduce the amount of Wrapping
+	 * @param e the elements that should be added
+	 * @return if the collection was modified
+	 */
+	public default boolean addAll(KEY_TYPE... e) { return addAll(e, 0, e.length); }
+	
+	/**
+	 * A Type-Specific Array based addAll method to reduce the amount of Wrapping
+	 * @param e the elements that should be added
+	 * @param length how many elements of the array should be added
+	 * @return if the collection was modified
+	 */
+	public default boolean addAll(KEY_TYPE[] e, int length) { return addAll(e, 0, length); }
+	
+	/**
+	 * A Type-Specific Array based addAll method to reduce the amount of Wrapping
+	 * @param e the elements that should be added
+	 * @param offset where to start within the array
+	 * @param length how many elements of the array should be added
+	 * @return if the collection was modified
+	 */
+	public default boolean addAll(KEY_TYPE[] e, int offset, int length) {
+		if(length <= 0) return false;
+		SanityChecks.checkArrayCapacity(e.length, offset, length);
+		boolean added = false;
+		for(int i = 0;i<length;i++) {
+			if(add(e[offset+i])) added = true;
+		}
+		return added;
+	}
+	
 #if !TYPE_OBJECT
 	/**
 	 * A Type-Specific contains function to reduce (un)boxing
@@ -86,6 +122,16 @@ public interface COLLECTION KEY_GENERIC_TYPE extends Collection<CLASS_TYPE>, ITE
 	 */
 	public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c);
 	
+	/**
+	 * A Type-Specific removeAll function that reduces (un)boxing.
+	 * It also notifies the remover of which exact element is going to be removed.
+	 * @param c the collection of elements that should be removed
+	 * @param r elements that got removed
+	 * @return true if any element was removed
+	 * @see Collection#removeAll(Collection)
+	 */
+	public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r);
+	
 	/**
  	 * A Type-Specific retainAll function that reduces (un)boxing.
 	 * @param c the collection of elements that should be kept
@@ -94,7 +140,48 @@ public interface COLLECTION KEY_GENERIC_TYPE extends Collection<CLASS_TYPE>, ITE
  	 */
 	public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c);
 	
-#if !TYPE_OBJECT
+	/**
+ 	 * A Type-Specific retainAll function that reduces (un)boxing.
+	 * It also notifies the remover of which exact element is going to be removed.
+	 * @param c the collection of elements that should be kept
+	 * @param r elements that got removed
+ 	 * @return true if any element was removed
+ 	 * @see Collection#retainAll(Collection)
+ 	 */
+	public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r);
+	
+	/**
+	 * A Helper function to reduce the usage of Streams and allows to collect all elements
+	 * @param collection that the elements should be inserted to
+	 * @param <E> the collection type
+	 * @return the input with the desired elements
+	 */
+	default <E extends COLLECTION KEY_GENERIC_TYPE> E pour(E collection) {
+		collection.addAll(this);
+		return collection;
+	}
+	
+	/**
+	 * A Function that does a shallow clone of the Collection itself.
+	 * This function is more optimized then a copy constructor since the Collection does not have to be unsorted/resorted.
+	 * It can be compared to Cloneable but with less exception risk
+	 * @return a Shallow Copy of the collection
+	 * @note Wrappers and view collections will not support this feature
+	 */
+	public COLLECTION KEY_GENERIC_TYPE copy();
+	
+#if TYPE_OBJECT
+	/**
+	 * A Helper function that simplifies the process of creating a new Array.
+	 * @param action the array creation function
+	 * @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()));
+	}
+	
+#else
 	/**
 	 * A Type-Specific toArray function that delegates to {@link #TO_ARRAY(KEY_TYPE[])} with a newly created array.
 	 * @return an array containing all of the elements in this collection
@@ -181,6 +268,28 @@ public interface COLLECTION KEY_GENERIC_TYPE extends Collection<CLASS_TYPE>, ITE
 	@Override
 	public ITERATOR KEY_GENERIC_TYPE iterator();
 	
+	/**
+	 * Creates a Wrapped Collection that is Synchronized
+	 * @return a new Collection that is synchronized
+	 * @see COLLECTIONS#synchronize
+	 */
+	public default COLLECTION KEY_GENERIC_TYPE synchronize() { return COLLECTIONS.synchronize(this); }
+	
+	/**
+	 * Creates a Wrapped Collection that is Synchronized
+	 * @param mutex is the controller of the synchronization block
+	 * @return a new Collection Wrapper that is synchronized
+	 * @see COLLECTIONS#synchronize
+	 */
+	public default COLLECTION KEY_GENERIC_TYPE synchronize(Object mutex) { return COLLECTIONS.synchronize(this, mutex); }
+	
+	/**
+	 * Creates a Wrapped Collection that is unmodifiable
+	 * @return a new Collection Wrapper that is unmodifiable
+	 * @see COLLECTIONS#unmodifiable
+	 */
+	public default COLLECTION KEY_GENERIC_TYPE unmodifiable() { return COLLECTIONS.unmodifiable(this); }
+	
 #if PRIMITIVES
 	/**
 	 * Returns a Java-Type-Specific Stream to reduce boxing/unboxing.

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

@@ -1,18 +1,23 @@
 package speiger.src.collections.PACKAGE.collections;
 
 import java.util.Objects;
-#if !TYPE_OBJECT
 import java.util.function.Consumer;
+#if !TYPE_OBJECT
 
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.objects.collections.ObjectIterable;
+#else
+import java.util.function.BiFunction;
+
 #endif
 import speiger.src.collections.PACKAGE.functions.function.TO_OBJECT_FUNCTION;
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
 import speiger.src.collections.PACKAGE.utils.ITERABLES;
+import speiger.src.collections.PACKAGE.utils.ITERATORS;
 
 /**
  * A Type-Specific {@link Iterable} that reduces (un)boxing
@@ -66,7 +71,7 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 	 * @param <E> the generic type of the Object
 	 * @throws java.lang.NullPointerException if the specified action is null
 	 */
-	default <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	default <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		iterator().forEachRemaining(input, action);
 	}
@@ -118,6 +123,43 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 		return ITERABLES.filter(this, filter);
 	}
 	
+	/**
+	 * 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
+	 */
+	default ITERABLE KEY_GENERIC_TYPE distinct() {
+		return ITERABLES.distinct(this);
+	}
+	
+	/**
+	 * 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
+	 * @return a Iterable that is limited in length
+	 */
+	default ITERABLE KEY_GENERIC_TYPE limit(long limit) {
+		return ITERABLES.limit(this, limit);
+	}
+	
+	/**
+	 * A Helper function to reduce the usage of Streams and allows to preview elements before they are iterated through
+	 * @param action the action that should be applied
+	 * @return a Peeked Iterable
+	 */
+	default ITERABLE KEY_GENERIC_TYPE peek(CONSUMER KEY_GENERIC_TYPE action) {
+		return ITERABLES.peek(this, action);
+	}
+	
+	/**
+	 * A Helper function to reduce the usage of Streams and allows to collect all elements
+	 * @param collection that the elements should be inserted to
+	 * @param <E> the collection type
+	 * @return the input with the desired elements
+	 */
+	default <E extends COLLECTION KEY_GENERIC_TYPE> E pour(E collection) {
+		ITERATORS.pour(iterator(), collection);
+		return collection;
+	}
+	
 	/**
 	 * Helper function to reduce stream usage that allows to filter for any matches.
 	 * @param filter that should be applied
@@ -170,4 +212,75 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
 		}
 		return EMPTY_VALUE;
 	}
+	
+#if !TYPE_OBJECT
+	/**
+	 * Performs a <a href="package-summary.html#Reduction">reduction</a> on the
+     * elements of this Iterable
+	 * @param operator the operation that should be applied
+	 * @param identity the start value
+	 * @return the reduction result, returns identity if nothing was found
+	 */
+	default KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
+			state = operator.APPLY_VALUE(state, iter.NEXT());
+		}
+		return state;
+	}
+	
+#else
+	/**
+	 * Performs a <a href="package-summary.html#Reduction">reduction</a> on the
+     * elements of this Iterable
+	 * @param operator the operation that should be applied
+	 * @param identity the start value
+	 * @Type(E)
+	 * @return the reduction result, returns identity if nothing was found
+	 */
+	default <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
+			state = operator.APPLY_VALUE(state, iter.NEXT());
+		}
+		return state;
+	}
+	
+#endif
+	/**
+	 * Performs a <a href="package-summary.html#Reduction">reduction</a> on the
+	 * elements of this Iterable
+	 * @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) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
+			if(empty) {
+				empty = false;
+				state = iter.NEXT();
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, iter.NEXT());
+		}
+		return state;
+	}	
+	
+	/**
+	 * Helper function to reduce stream usage that allows to count the valid elements.
+	 * @param filter that should be applied
+	 * @return the amount of Valid Elements
+	 */
+	default int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		int result = 0;
+		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) {
+			if(filter.TEST_VALUE(iter.NEXT())) result++;
+		}
+		return result;
+	}
 }

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

@@ -8,7 +8,7 @@ import java.util.function.Consumer;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 
 /**
  * A Type-Specific {@link Iterator} that reduces (un)boxing
@@ -74,9 +74,9 @@ public interface ITERATOR KEY_GENERIC_TYPE extends Iterator<CLASS_TYPE>
 	 * @param <E> the generic type of the Object
 	 * @throws java.lang.NullPointerException if the specified action is null
 	 */
-	default <E> void forEachRemaining(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	default <E> void forEachRemaining(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
-		while(hasNext()) { action.accept(NEXT(), input); }
+		while(hasNext()) { action.accept(input, NEXT()); }
 	}
 	
 	/**

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

@@ -0,0 +1,26 @@
+package speiger.src.collections.PACKAGE.functions;
+
+/**
+ * Type-Specific Supplier interface that reduces (un)boxing and allows to merge other consumer types into this interface
+ * @Type(T)
+ */
+#if TYPE_OBJECT
+public interface SUPPLIER KEY_GENERIC_TYPE extends java.util.function.Supplier<KEY_TYPE>
+#else if JDK_TYPE && !TYPE_BOOLEAN
+public interface SUPPLIER KEY_GENERIC_TYPE extends JAVA_SUPPLIER
+#else
+public interface SUPPLIER KEY_GENERIC_TYPE
+#endif
+{
+	/**
+	 * @return the supplied value
+	 */
+	public KEY_TYPE GET_KEY();
+#if JDK_TYPE && PRIMITIVES
+	
+	@Override
+	public default KEY_TYPE GET_JAVA() {
+		return GET_KEY();
+	}
+#endif
+}

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

@@ -3,11 +3,15 @@ package speiger.src.collections.PACKAGE.lists;
 import java.util.Collection;
 import java.util.List;
 import java.util.ListIterator;
+import java.util.NoSuchElementException;
 import java.util.Objects;
 
 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.PACKAGE.collections.SPLIT_ITERATOR;
+import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+import speiger.src.collections.utils.SanityChecks;
 
 /**
  * Abstract implementation of the {@link LIST} interface.
@@ -15,9 +19,8 @@ import speiger.src.collections.PACKAGE.collections.ITERATOR;
  */
 public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION KEY_GENERIC_TYPE implements LIST KEY_GENERIC_TYPE 
 {
-#if !TYPE_OBJECT
 	/**
-	 * A Type-Specific implementation of add function that delegates to {@link #add(int, KEY_TYPE)}
+	 * A Type-Specific implementation of add function that delegates to {@link List#add(int, Object)}
 	 */
 	@Override
 	public boolean add(KEY_TYPE e) {
@@ -25,6 +28,7 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		return true;
 	}
 	
+#if !TYPE_OBJECT
 	/** {@inheritDoc}
 	 * <p>This default implementation delegates to the corresponding type-specific function.
 	 * @deprecated Please use the corresponding type-specific function instead. 
@@ -155,6 +159,14 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 	}
 	
 #endif
+	@Override
+	public boolean REMOVE_SWAP(KEY_TYPE e) {
+		int index = indexOf(e);
+		if(index == -1) return false;
+		swapRemove(index);
+		return true;
+	}
+	
 	/**
 	 * Compares if the list are the same.
 	 */
@@ -205,7 +217,8 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 	
 	@Override
 	public LIST KEY_GENERIC_TYPE subList(int fromIndex, int toIndex) {
-		return new SUB_LIST(this, fromIndex, toIndex);
+		SanityChecks.checkArrayCapacity(size(), fromIndex, toIndex-fromIndex);
+		return new SubList(this, 0, fromIndex, toIndex);
 	}
 	
 	@Override
@@ -220,6 +233,7 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 
 	@Override
 	public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index) {
+		if(index < 0 || index > size()) throw new IndexOutOfBoundsException();
 		return new LIST_ITER(index);
 	}
 	
@@ -229,116 +243,130 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		while(size < size()) REMOVE(size() - 1);
 	}
 	
-	private class SUB_LIST extends ABSTRACT_LIST KEY_GENERIC_TYPE {
+	public ABSTRACT_LIST KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
-		ABSTRACT_LIST KEY_GENERIC_TYPE l;
+	
-		int offset;
+	private class SubList extends ABSTRACT_LIST KEY_GENERIC_TYPE
+	{
+		final ABSTRACT_LIST KEY_GENERIC_TYPE list;
+		final int parentOffset;
+		final int offset;
 		int size;
 		
-		SUB_LIST(ABSTRACT_LIST KEY_GENERIC_TYPE l, int from, int to) {
+		public SubList(ABSTRACT_LIST KEY_GENERIC_TYPE list, int offset, int from, int to) {
-			if (from < 0) throw new IndexOutOfBoundsException("fromIndex = " + from);
+			this.list = list;
-			else if (to > l.size()) throw new IndexOutOfBoundsException("toIndex = " + to);
+			this.parentOffset = from;
-			else if (from > to)	throw new IllegalArgumentException("fromIndex(" + from + ") > toIndex(" + to + ")");
+			this.offset = offset + from;
-			this.l = l;
+			this.size = to - from;
-			offset = from;
-			size = to - from;
 		}
 		
 		@Override
-		public void add(int index, KEY_TYPE e) {
+		public void add(int index, KEY_TYPE element) {
-			checkAddRange(index);
+			checkAddSubRange(index);
-			l.add(index+offset, e);
+			list.add(parentOffset+index, element);
 			size++;
 		}
 		
 		@Override
 		public boolean addAll(int index, Collection<? extends CLASS_TYPE> c) {
-			checkAddRange(index);
+			checkAddSubRange(index);
-			int size = c.size();
+			int add = c.size();
-			if(size == 0) return false;
+			if(add <= 0) return false;
-			l.addAll(index + offset, l);
+			list.addAll(parentOffset+index, c);
-			offset += size;
+			this.size += add;
 			return true;
 		}
 		
 		@Override
 		public boolean addAll(int index, COLLECTION KEY_GENERIC_TYPE c) {
-			checkAddRange(index);
+			checkAddSubRange(index);
-			int size = c.size();
+			int add = c.size();
-			if(size == 0) return false;
+			if(add <= 0) return false;
-			l.addAll(index + offset, l);
+			list.addAll(parentOffset+index, c);
-			offset += size;
+			this.size += add;
 			return true;
 		}
 
 		@Override
 		public boolean addAll(int index, LIST KEY_GENERIC_TYPE c) {
-			checkAddRange(index);
+			checkAddSubRange(index);
-			int size = c.size();
+			int add = c.size();
-			if(size == 0) return false;
+			if(add <= 0) return false;
-			l.addAll(index + offset, l);
+			list.addAll(parentOffset+index, c);
-			offset += size;
+			this.size += add;
 			return true;
 		}
 		
 		@Override
 		public void addElements(int from, KEY_TYPE[] a, int offset, int length) {
-			checkRange(from);
+			checkAddSubRange(from);
-			l.addElements(from + this.offset, a, offset, length);
+			if(length <= 0) return;
-			size += length;
+			list.addElements(parentOffset+from, a, offset, length);
+			this.size += length;
 		}
 		
 		@Override
 		public KEY_TYPE[] getElements(int from, KEY_TYPE[] a, int offset, int length) {
-			checkRange(from);
+			SanityChecks.checkArrayCapacity(size, from, length);
-			return l.getElements(from + this.offset, a, offset, length);
+			SanityChecks.checkArrayCapacity(a.length, offset, length);
+			return list.getElements(from+this.offset, a, offset, length);
 		}
 		
 		@Override
 		public void removeElements(int from, int to) {
-			checkRange(from);
+			if(to-from <= 0) return;
-			checkRange(to);
+			checkSubRange(from);
-			l.removeElements(from + offset, to + offset);
+			checkSubRange(to);
+			list.removeElements(from+parentOffset, to+parentOffset);
 			size -= to - from;
 		}
 		
 #if TYPE_OBJECT
 		@Override
-		public <K> K[] extractElements(int from, int to, Class<K> clz) {
+		public <K> K[] extractElements(int from, int to, Class<K> type) {
-			checkRange(from);
+			checkSubRange(from);
-			checkRange(to);
+			checkSubRange(to);
-			K[] a = l.extractElements(from + offset, to + offset, clz);
+			K[] result = list.extractElements(from+parentOffset, to+parentOffset, type);
 			size -= to - from;
-			return a;
+			return result;
 		}
 
 #else
 		@Override
 		public KEY_TYPE[] extractElements(int from, int to) {
-			checkRange(from);
+			checkSubRange(from);
-			checkRange(to);
+			checkSubRange(to);
-			KEY_TYPE[] a = l.extractElements(from + offset, to + offset);
+			KEY_TYPE[] result = list.extractElements(from+parentOffset, to+parentOffset);
 			size -= to - from;
-			return a;
+			return result;
 		}
 		
 #endif
 		@Override
 		public KEY_TYPE GET_KEY(int index) {
-			checkRange(index);
+			checkSubRange(index);
-			return l.GET_KEY(index + offset);
+			return list.GET_KEY(offset+index);
 		}
 
 		@Override
-		public KEY_TYPE set(int index, KEY_TYPE e) {
+		public KEY_TYPE set(int index, KEY_TYPE element) {
-			checkRange(index);
+			checkSubRange(index);
-			return l.set(index + offset, e);
+			return list.set(offset+index, element);
+		}
+		
+		@Override
+		public KEY_TYPE swapRemove(int index) {
+			checkSubRange(index);
+			KEY_TYPE result = list.swapRemove(index+parentOffset);
+			size--;
+			return result;
 		}
 		
 		@Override
 		public KEY_TYPE REMOVE(int index) {
-			checkRange(index);
+			checkSubRange(index);
+			KEY_TYPE result = list.REMOVE(index+parentOffset);
 			size--;
-			return l.REMOVE(index + offset);
+			return result;
 		}
 		
 		@Override
@@ -346,15 +374,112 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 			return size;
 		}
 		
-		private void checkRange(int index) {
+		@Override
+		public SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 16464); }
+		
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index) {
+			if(index < 0 || index > size()) throw new IndexOutOfBoundsException();
+			return new SubListIterator(this, index);
+		}
+		
+		@Override
+		public LIST KEY_GENERIC_TYPE subList(int fromIndex, int toIndex) {
+			SanityChecks.checkArrayCapacity(size, fromIndex, toIndex-fromIndex);
+			return new SubList(list, offset, fromIndex, toIndex);
+		}
+		
+		protected void checkSubRange(int index) {
 			if (index < 0 || index >= size)
 				throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
 		}
 		
-		private void checkAddRange(int index) {
+		protected void checkAddSubRange(int index) {
 			if (index < 0 || index > size)
 				throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
 		}
+		
+		private class SubListIterator implements LIST_ITERATOR KEY_GENERIC_TYPE
+		{
+			ABSTRACT_LIST KEY_GENERIC_TYPE list;
+			int index;
+			int lastReturned = -1;
+			
+			SubListIterator(ABSTRACT_LIST KEY_GENERIC_TYPE list, int index) {
+				this.list = list;
+				this.index = index;
+			}
+			
+			@Override
+			public boolean hasNext() {
+				return index < list.size();
+			}
+			
+			@Override
+			public KEY_TYPE NEXT() {
+				if(!hasNext()) throw new NoSuchElementException();
+				int i = index++;
+				return list.GET_KEY((lastReturned = i));
+			}
+			
+			@Override
+			public boolean hasPrevious() {
+				return index > 0;
+			}
+			
+			@Override
+			public KEY_TYPE PREVIOUS() {
+				if(!hasPrevious()) throw new NoSuchElementException();
+				index--;
+				return list.GET_KEY((lastReturned = index));
+			}
+			
+			@Override
+			public int nextIndex() {
+				return index;
+			}
+			
+			@Override
+			public int previousIndex() {
+				return index-1;
+			}
+			
+			@Override
+			public void remove() {
+				if(lastReturned == -1) throw new IllegalStateException();
+				list.REMOVE(lastReturned);
+				index = lastReturned;
+				lastReturned = -1;
+			}
+			
+			@Override
+			public void set(KEY_TYPE e) {
+				if(lastReturned == -1) throw new IllegalStateException();
+				list.set(lastReturned, e);
+			}
+			
+			@Override
+			public void add(KEY_TYPE e) {
+				list.add(index++, e);
+				lastReturned = -1;
+			}
+			
+			@Override
+			public int skip(int amount) {
+				if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+				int steps = Math.min(amount, (list.size() - 1) - index);
+				index += steps;
+				return steps;
+			}
+			
+			@Override
+			public int back(int amount) {
+				if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+				int steps = Math.min(amount, index);
+				index -= steps;
+				return steps;
+			}
+		}
 	}
 		
 	private class LIST_ITER implements LIST_ITERATOR KEY_GENERIC_TYPE {
@@ -372,8 +497,9 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		
 		@Override
 		public KEY_TYPE NEXT() {
-			lastReturned = index;
+			if(!hasNext()) throw new NoSuchElementException();
-			return GET_KEY(index++);
+			int i = index++;
+			return GET_KEY((lastReturned = i));
 		}
 		
 		@Override
@@ -383,8 +509,9 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
-			lastReturned = index;
+			if(!hasPrevious()) throw new NoSuchElementException();
-			return GET_KEY(index--);
+			index--;
+			return GET_KEY((lastReturned = index));
 		}
 		
 		@Override
@@ -399,25 +526,20 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		
 		@Override
 		public void remove() {
-			if(lastReturned == -1)
+			if(lastReturned == -1) throw new IllegalStateException();
-				throw new IllegalStateException();
 			ABSTRACT_LIST.this.REMOVE(lastReturned);
-			if(lastReturned < index)
+			index = lastReturned;
-				index--;
 			lastReturned = -1;
 		}
 		
 		@Override
 		public void set(KEY_TYPE e) {
-			if(lastReturned == -1)
+			if(lastReturned == -1) throw new IllegalStateException();
-				throw new IllegalStateException();
 			ABSTRACT_LIST.this.set(lastReturned, e);
 		}
 		
 		@Override
 		public void add(KEY_TYPE e) {
-			if(lastReturned == -1)
-				throw new IllegalStateException();
 			ABSTRACT_LIST.this.add(index++, e);
 			lastReturned = -1;
 		}

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

@@ -9,12 +9,14 @@ import java.util.Iterator;
 import java.util.Objects;
 #if TYPE_OBJECT
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
 import java.util.function.Predicate;
 import java.util.function.UnaryOperator;
 #if PRIMITIVES
 import java.util.function.JAVA_PREDICATE;
 import java.util.function.JAVA_UNARY_OPERATOR;
+import java.nio.JAVA_BUFFER;
 #endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
@@ -26,8 +28,9 @@ import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 #if TYPE_OBJECT
@@ -181,7 +184,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	 */
 	public static GENERIC_KEY_BRACES ARRAY_LIST KEY_GENERIC_TYPE of(Class<KEY_TYPE> c) {
 		ARRAY_LIST KEY_GENERIC_TYPE list = new ARRAY_LISTBRACES();
-		list.data = (KEY_TYPE[])ObjectArrays.newArray(c.getClass().getComponentType(), 0);
+		list.data = (KEY_TYPE[])ObjectArrays.newArray(c, 0);
 		return list;
 	}
 	
@@ -282,6 +285,16 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return true;
 	}
 	
+	@Override
+	public boolean addAll(KEY_TYPE[] e, int offset, int length) {
+		if(length <= 0) return false;
+		SanityChecks.checkArrayCapacity(e.length, offset, length);
+		grow(size + length);
+		System.arraycopy(e, offset, data, size, length);
+		size+=length;
+		return true;
+	}
+	
 	/**
 	 * Appends the specified array elements to the index of the list.
 	 * @param from the index where to append the elements to
@@ -380,7 +393,13 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	}
 
 #endif
+#if PRIMITIVES
+	@Override
+	public void fillBuffer(JAVA_BUFFER buffer) {
+		buffer.put(data, 0, size);
+	}
 	
+#endif
 	/**
 	 * A function to find if the Element is present in this list.
 	 * @param o the element that is searched for
@@ -591,10 +610,10 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	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(data[i], input);		
+			action.accept(input, data[i]);		
 	}
 	
 	@Override
@@ -633,6 +652,55 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return EMPTY_VALUE;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		for(int i = 0;i<size;i++) {
+			state = operator.APPLY_VALUE(state, data[i]);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		for(int i = 0;i<size;i++) {
+			state = operator.APPLY_VALUE(state, data[i]);
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		for(int i = 0;i<size;i++) {
+			if(empty) {
+				empty = false;
+				state = data[i];
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, data[i]);
+		}
+		return state;
+	}
+	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		int result = 0;
+		for(int i = 0;i<size;i++) {
+			if(filter.TEST_VALUE(data[i])) result++;
+		}
+		return result;
+	}
+	
 	/**
 	 * A Type-Specific set function to reduce (un)boxing
 	 * @param index the index of the element to set
@@ -706,6 +774,17 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return old;
 	}
 	
+	public KEY_TYPE swapRemove(int index) {
+		checkRange(index);
+		KEY_TYPE old = data[index];
+		size--;
+		data[index] = data[size];
+#if TYPE_OBJECT
+		data[size] = null;
+#endif
+		return old;
+	}
+	
 #if !TYPE_OBJECT
 	/**
 	 * A Type-Specific implementation of remove. This implementation iterates over the elements until it finds the element that is searched for or it runs out of elements.
@@ -837,6 +916,22 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return modified;
 	}
 	
+	@Override
+	public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) {
+		if(c.isEmpty()) return false;
+		int j = 0;
+		for(int i = 0;i<size;i++) {
+			if(!c.contains(data[i])) data[j++] = data[i];
+			else r.accept(data[i]);
+		}
+		boolean modified = j != size;
+#if TYPE_OBJECT
+		Arrays.fill(data, j, size, null);
+#endif		
+		size = j;
+		return modified;
+	}
+	
 	/**
 	 * A function to retain all elements that were provided in the other collection
 	 * This function might delegate to a more appropriate function if necessary
@@ -864,6 +959,27 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return modified;
 	}
 	
+	@Override
+	public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) {
+		if(c.isEmpty()) {
+			boolean modifed = size > 0;
+			forEach(r);
+			clear();
+			return modifed;
+		}
+		int j = 0;
+		for(int i = 0;i<size;i++) {
+			if(c.contains(data[i])) data[j++] = data[i];
+			else r.accept(data[i]);
+		}
+		boolean modified = j != size;
+#if TYPE_OBJECT
+		Arrays.fill(data, j, size, null);
+#endif
+		size = j;
+		return modified;
+	}
+	
 #if PRIMITIVES
 	/**
 	 * A optimized List#removeIf(Predicate) that more quickly removes elements from the list then the ArrayList implementation
@@ -907,8 +1023,13 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	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(data, 0, a, 0, size);
+#else
 		for(int i = 0;i<size;i++)
 			a[i] = (E)KEY_TO_OBJ(data[i]);
+#endif
+		if (a.length > size) a[size] = null;
 		return a;
 	}
 	
@@ -917,6 +1038,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
 		if(a.length < size) a = new KEY_TYPE[size];
 		System.arraycopy(data, 0, a, 0, size);
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
 		return a;
 	}
 	
@@ -995,6 +1117,14 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		grow(size);
 	}
 	
+	@Override
+	public ARRAY_LIST KEY_GENERIC_TYPE copy() {
+		ARRAY_LIST KEY_GENERIC_TYPE list = new ARRAY_LISTBRACES();
+		list.data = Arrays.copyOf(data, data.length);
+		list.size = size;
+		return list;
+	}
+	
 	protected void grow(int capacity) {
 		if(capacity < data.length) return;
 		data = Arrays.copyOf(data, data == ARRAYS.EMPTY_ARRAY ? Math.max(DEFAULT_ARRAY_SIZE, capacity) : (int)Math.max(Math.min((long)data.length + (data.length >> 1), SanityChecks.MAX_ARRAY_SIZE), capacity));		
@@ -1010,6 +1140,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 			throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
 	}
 	
+	
 #if PRIMITIVES
 	/**
 	 * Returns a Java-Type-Specific Stream to reduce boxing/unboxing.

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

@@ -5,8 +5,10 @@ import java.util.Arrays;
 import java.util.Comparator;
 #endif
 import java.util.Collection;
+import java.util.NoSuchElementException;
 import java.util.Objects;
 #if TYPE_OBJECT
+import java.util.function.BiFunction;
 import java.util.function.Consumer;
 #endif
 import java.util.function.Predicate;
@@ -22,8 +24,9 @@ import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+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
@@ -120,6 +123,8 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	@Override
 	public boolean addAll(int index, LIST KEY_GENERIC_TYPE c) { throw new UnsupportedOperationException(); }
 	@Override
+	public boolean addAll(KEY_TYPE[] e, int offset, int length) { throw new UnsupportedOperationException(); }
+	@Override
 	public void addElements(int from, KEY_TYPE[] a, int offset, int length) { throw new UnsupportedOperationException(); }
 	
 	@Override
@@ -259,6 +264,11 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 		return data[index];
 	}
 	
+	@Override
+	public IMMUTABLE_LIST KEY_GENERIC_TYPE copy() {
+		return new IMMUTABLE_LISTBRACES(Arrays.copyOf(data, data.length));
+	}
+	
 	/**
 	 * A Type Specific foreach function that reduces (un)boxing
 	 * 
@@ -281,10 +291,10 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		for(int i = 0,m=data.length;i<m;i++)
-			action.accept(data[i], input);		
+			action.accept(input, data[i]);		
 	}
 	
 	@Override
@@ -323,6 +333,61 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 		return EMPTY_VALUE;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		for(int i = 0,m=data.length;i<m;i++) {
+			state = operator.APPLY_VALUE(state, data[i]);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		for(int i = 0,m=data.length;i<m;i++) {
+			state = operator.APPLY_VALUE(state, data[i]);
+		}
+		return state;
+	}
+
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		for(int i = 0,m=data.length;i<m;i++) {
+			if(empty) {
+				empty = false;
+				state = data[i];
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, data[i]);
+		}
+		return state;
+	}
+	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		int result = 0;
+		for(int i = 0,m=data.length;i<m;i++) {
+			if(filter.TEST_VALUE(data[i])) result++;
+		}
+		return result;
+	}
+	
+	@Override
+	public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index) {
+		if(index < 0 || index > size()) throw new IndexOutOfBoundsException();
+		return new LIST_ITER(index);
+	}
+	
 	@Override
 	public KEY_TYPE set(int index, KEY_TYPE e) { throw new UnsupportedOperationException(); }
 	@Override
@@ -334,7 +399,8 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 #endif
 	@Override
 	public KEY_TYPE REMOVE(int index) { throw new UnsupportedOperationException(); }
-
+	@Override
+	public KEY_TYPE swapRemove(int index) { throw new UnsupportedOperationException(); }
 #if !TYPE_OBJECT
 	@Override
 	public boolean REMOVE_KEY(KEY_TYPE type) { throw new UnsupportedOperationException(); }
@@ -353,6 +419,10 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c) { throw new UnsupportedOperationException(); }
 	@Override
 	public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c) { throw new UnsupportedOperationException(); }
+	@Override
+	public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) { throw new UnsupportedOperationException(); }
+	@Override
+	public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) { throw new UnsupportedOperationException(); }
 	
 #if PRIMITIVES
 	@Override
@@ -384,6 +454,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 		else if(a.length < data.length) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), data.length);
 		for(int i = 0,m=data.length;i<m;i++)
 			a[i] = (E)KEY_TO_OBJ(data[i]);
+		if (a.length > data.length) a[data.length] = null;
 		return a;
 	}
 	
@@ -392,6 +463,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
 		if(a.length < data.length) a = new KEY_TYPE[data.length];
 		System.arraycopy(data, 0, a, 0, data.length);
+		if (a.length > data.length) a[data.length] = EMPTY_KEY_VALUE;
 		return a;
 	}
 	
@@ -432,4 +504,69 @@ 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); }
+	
+	private class LIST_ITER implements LIST_ITERATOR KEY_GENERIC_TYPE {
+		int index;
+		
+		LIST_ITER(int index) {
+			this.index = index;
+		}
+		
+		@Override
+		public boolean hasNext() {
+			return index < size();
+		}
+		
+		@Override
+		public KEY_TYPE NEXT() {
+			if(!hasNext()) throw new NoSuchElementException();
+			return GET_KEY(index++);
+		}
+		
+		@Override
+		public boolean hasPrevious() {
+			return index > 0;
+		}
+		
+		@Override
+		public KEY_TYPE PREVIOUS() {
+			if(!hasPrevious()) throw new NoSuchElementException();
+			return GET_KEY(--index);
+		}
+		
+		@Override
+		public int nextIndex() {
+			return index;
+		}
+		
+		@Override
+		public int previousIndex() {
+			return index-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(); }
+		
+		@Override
+		public int skip(int amount) {
+			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+			int steps = Math.min(amount, (size() - 1) - index);
+			index += steps;
+			return steps;
+		}
+		
+		@Override
+		public int back(int amount) {
+			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+			int steps = Math.min(amount, index);
+			index -= steps;
+			return steps;
+		}
+	}
 }

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

@@ -2,10 +2,14 @@ package speiger.src.collections.PACKAGE.lists;
 
 #if TYPE_OBJECT
 import java.util.Comparator;
+import java.util.function.BiFunction;
+#else if PRIMITIVES
+import java.nio.JAVA_BUFFER;
 #endif
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.Objects;
+import java.util.NoSuchElementException;
 import java.util.Spliterator;
 #if PRIMITIVES
 import java.util.Spliterator.JAVA_SPLIT_ITERATOR;
@@ -17,11 +21,14 @@ import java.util.function.UnaryOperator;
 import java.util.function.JAVA_PREDICATE;
 import java.util.function.JAVA_UNARY_OPERATOR;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+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;
 import speiger.src.collections.PACKAGE.queues.PRIORITY_DEQUEUE;
@@ -241,6 +248,14 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		add(e);
 	}
 	
+	@Override
+	public boolean addAll(KEY_TYPE[] e, int offset, int length) {
+		if(length <= 0) return false;
+		SanityChecks.checkArrayCapacity(e.length, offset, length);
+		for(int i = 0;i<length;i++) linkLast(e[offset+i]);
+		return true;
+	}
+	
 	@Override
 	public void addElements(int from, KEY_TYPE[] a, int offset, int length) {
 		SanityChecks.checkArrayCapacity(a.length, offset, length);
@@ -312,9 +327,8 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	@Primitive
 	public int indexOf(Object o) {
-		if(o == null) return -1;
 		Entry KEY_GENERIC_TYPE entry = first;
-		for(int i = 0;entry != null;entry = entry.next) {
+		for(int i = 0;entry != null;entry = entry.next,i++) {
 			if(Objects.equals(KEY_TO_OBJ(entry.value), o)) return i;
 		}
 		return -1;
@@ -323,9 +337,8 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	@Primitive
 	public int lastIndexOf(Object o) {
-		if(o == null) return -1;
 		Entry KEY_GENERIC_TYPE entry = last;
-		for(int i = size-1;entry != null;entry = entry.prev) {
+		for(int i = size-1;entry != null;entry = entry.prev,i--) {
 			if(Objects.equals(KEY_TO_OBJ(entry.value), o)) return i;
 		}
 		return -1;
@@ -340,7 +353,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public int indexOf(KEY_TYPE e) {
 		Entry entry = first;
-		for(int i = 0;entry != null;entry = entry.next) {
+		for(int i = 0;entry != null;entry = entry.next,i++) {
 			if(KEY_EQUALS(entry.value, e)) return i;
 		}
 		return -1;
@@ -349,26 +362,17 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public int lastIndexOf(KEY_TYPE e) {
 		Entry entry = last;
-		for(int i = size-1;entry != null;entry = entry.prev) {
+		for(int i = size-1;entry != null;entry = entry.prev,i--) {
 			if(KEY_EQUALS(entry.value, e)) return i;
 		}
 		return -1;
 	}
 	
 #endif
-	@Override
-	public ITERATOR KEY_GENERIC_TYPE iterator() {
-		return new ListIter(first, 0);
-	}
-	
-	@Override
-	public LIST_ITERATOR KEY_GENERIC_TYPE listIterator() {
-		return new ListIter(first, 0);
-	}
-	
 	@Override
 	public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index) {
-		if(index == size-1) return new ListIter(last, index);
+		if(index < 0 || index > size()) throw new IndexOutOfBoundsException();
+		if(index == size) return new ListIter(null, index);
 		if(index == 0) return new ListIter(first, index);
 		return new ListIter(getNode(index), index);
 	}
@@ -402,10 +406,10 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next)
-			action.accept(entry.value, input);		
+			action.accept(input, entry.value);		
 	}
 	
 	@Override
@@ -444,6 +448,55 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return EMPTY_VALUE;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
+			state = operator.APPLY_VALUE(state, entry.value);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
+			state = operator.APPLY_VALUE(state, entry.value);
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
+			if(empty) {
+				empty = false;
+				state = entry.value;
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, entry.value);
+		}
+		return state;
+	}
+	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		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++;
+		}
+		return result;
+	}
+	
 	@Override
 	public KEY_TYPE set(int index, KEY_TYPE e) {
 		checkRange(index);
@@ -501,7 +554,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public boolean removeFirst(KEY_TYPE e) {
 		if(size == 0) return false;
-		for(Entry KEY_GENERIC_TYPE entry = first;entry.next != null;entry = entry.next) {
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
 			if(KEY_EQUALS(entry.value, e)) {
 				unlink(entry);
 				return true;
@@ -513,7 +566,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public boolean removeLast(KEY_TYPE e) {
 		if(size == 0) return false;
-		for(Entry KEY_GENERIC_TYPE entry = last;entry.prev != null;entry = entry.prev) {
+		for(Entry KEY_GENERIC_TYPE entry = last;entry != null;entry = entry.prev) {
 			if(KEY_EQUALS(entry.value, e)) {
 				unlink(entry);
 				return true;
@@ -522,11 +575,71 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return false;
 	}
 	
+	@Override
+	public KEY_TYPE swapRemove(int index) {
+		checkRange(index);
+		Entry KEY_GENERIC_TYPE entry = getNode(index);
+		if(entry == null) return EMPTY_KEY_VALUE;
+		if(entry.next == null) return unlinkLast(entry);
+		Entry KEY_GENERIC_TYPE before = entry.prev;
+		KEY_TYPE result = unlink(entry);
+		if(before == null) {
+			Entry KEY_GENERIC_TYPE temp = last;
+			last = temp.prev;
+			last.next = null;
+			temp.next = first;
+			temp.prev = null;
+			first.prev = temp;
+			first = temp;
+			return result;
+		}
+		Entry KEY_GENERIC_TYPE temp = last;
+		last = temp.prev;
+		last.next = null;
+		temp.next = before.next;
+		temp.prev = before;
+		before.next = temp;
+		return result;
+	}
+	
+	@Override
+	public boolean REMOVE_SWAP(KEY_TYPE e) {
+		if(size == 0) return false;
+		for(Entry KEY_GENERIC_TYPE entry = last;entry != null;entry = entry.prev) {
+			if(KEY_EQUALS(entry.value, e)) {
+				if(entry.next == null) {
+					unlinkLast(entry);
+					return true;
+				}
+				Entry KEY_GENERIC_TYPE before = entry.prev;
+				unlink(entry);
+				if(before == null) {
+					Entry KEY_GENERIC_TYPE temp = last;
+					last = temp.prev;
+					last.next = null;
+					temp.next = first;
+					temp.prev = null;
+					first.prev = temp;
+					first = temp;
+					return true;
+				}
+				Entry KEY_GENERIC_TYPE temp = last;
+				last = temp.prev;
+				last.next = null;
+				temp.next = before.next;
+				temp.prev = before;
+				before.next = temp;
+				return true;
+			}
+		}
+		return false;
+	}
+	
 #if TYPE_OBJECT
 	@Override
 	public boolean remove(Object e) {
 		if(size <= 0) return false;
-		for(Entry KEY_GENERIC_TYPE entry = first;entry.next != null;entry = entry.next) {
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
 			if(KEY_EQUALS(entry.value, e)) {
 				unlink(entry);
 				return true;
@@ -545,7 +658,8 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public KEY_TYPE REMOVE(int index) {
 		checkRange(index);
-		return unlink(getNode(index));
+		Entry KEY_GENERIC_TYPE entry = getNode(index);
+		return entry == null ? EMPTY_KEY_VALUE : unlink(entry);
 	}
 	
 	@Override
@@ -619,6 +733,14 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return d;
 	}
 	
+#endif
+#if PRIMITIVES
+	@Override
+	public void fillBuffer(JAVA_BUFFER buffer) {
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next)
+			buffer.put(entry.value);
+	}
+	
 #endif
 	@Override
 	@Primitive
@@ -686,6 +808,27 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return modified;
 	}
 	
+	@Override
+	public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) {
+		if(c.isEmpty()) return false;
+		boolean modified = false;
+		int j = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;) {
+			if(c.contains(entry.value)) {
+				r.accept(entry.value);
+				Entry KEY_GENERIC_TYPE next = entry.next;
+				unlink(entry);
+				entry = next;
+				modified = true;
+				continue;
+			}
+			else j++;
+			entry = entry.next;
+		}
+		size = j;
+		return modified;
+	}
+	
 	@Override
 	public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c) {
 		if(c.isEmpty()) {
@@ -710,6 +853,32 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return modified;
 	}
 	
+	@Override
+	public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) {
+		if(c.isEmpty()) {
+			boolean changed = size > 0;
+			forEach(r);
+			clear();
+			return changed;
+		}
+		boolean modified = false;
+		int j = 0;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;) {
+			if(!c.contains(entry.value)) {
+				r.accept(entry.value);
+				Entry KEY_GENERIC_TYPE next = entry.next;
+				unlink(entry);
+				entry = next;
+				modified = true;
+				continue;
+			}
+			else j++;
+			entry = entry.next;
+		}
+		size = j;
+		return modified;
+	}
+	
 	@Override
 	@Primitive
 	public boolean removeIf(Predicate<? super CLASS_TYPE> filter) {
@@ -770,6 +939,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
 			a[i++] = (E)KEY_TO_OBJ(entry.value);
 		}
+		if (a.length > size) a[size] = null;
 		return a;
 	}
 	
@@ -779,11 +949,18 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		if(a.length < size) a = new KEY_TYPE[size];
 		int i = 0;
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
-			a[i++] = KEY_TO_OBJ(entry.value);
+			a[i++] = entry.value;
 		}
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
 		return a;
 	}
 	
+#else
+	@Override
+	public T[] toArray(Int2ObjectFunction<T[]> action) {
+		return super.toArray(action);
+	}
+	
 #endif
 	@Override
 	public int size() {
@@ -802,6 +979,23 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		size = 0;
 	}
 	
+	@Override
+	public LINKED_LIST KEY_GENERIC_TYPE copy() {
+		LINKED_LIST KEY_GENERIC_TYPE list = new LINKED_LISTBRACES();
+		list.size = size;
+		if(first != null) {
+			list.first = new EntryBRACES(first.value, null, null);
+			Entry KEY_GENERIC_TYPE lastReturned = list.first;
+			for(Entry KEY_GENERIC_TYPE entry = first.next;entry != null;entry = entry.next) {
+				Entry KEY_GENERIC_TYPE next = new EntryBRACES(entry.value, lastReturned, null);
+				lastReturned.next = next;
+				lastReturned = next;
+			}
+			list.last = lastReturned;
+		}
+		return list;
+	}
+	
 	protected Entry KEY_GENERIC_TYPE getNode(int index) {
 		if(index < size >> 2) {
 			Entry KEY_GENERIC_TYPE x = first;
@@ -916,23 +1110,23 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	
 	private class ListIter implements LIST_ITERATOR KEY_GENERIC_TYPE 
 	{
-		Entry KEY_GENERIC_TYPE node;
+		Entry KEY_GENERIC_TYPE next;
 		Entry KEY_GENERIC_TYPE lastReturned;
 		int index;
 		
-		ListIter(Entry KEY_GENERIC_TYPE node, int index) {
+		ListIter(Entry KEY_GENERIC_TYPE next, int index) {
-			this.node = node;
+			this.next = next;
 			this.index = index;
 		}
 		
 		@Override
 		public boolean hasNext() {
-			return node != null;
+			return index < size;
 		}
 		
 		@Override
 		public boolean hasPrevious() {
-			return node != null;
+			return index > 0;
 		}
 		
 		@Override
@@ -948,23 +1142,26 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		@Override
 		public void remove() {
 			if(lastReturned == null) throw new IllegalStateException();
-			if(lastReturned.next == node) index--;
+			Entry KEY_GENERIC_TYPE lastNext = lastReturned.next;
 			unlink(lastReturned);
+			if (next == lastReturned) next = lastNext;
+			else index--;
 			lastReturned = null;
 		}
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
-			lastReturned = node;
+			if(!hasPrevious()) throw new NoSuchElementException();
-			node = node.prev;
+            lastReturned = next = (next == null) ? last : next.prev;
 			index--;
 			return lastReturned.value;
 		}
 		
 		@Override
 		public KEY_TYPE NEXT() {
-			lastReturned = node;
+			if(!hasNext()) throw new NoSuchElementException();
-			node = node.next;
+			lastReturned = next;
+			next = next.next;
 			index++;
 			return lastReturned.value;
 		}
@@ -977,10 +1174,9 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		
 		@Override
 		public void add(KEY_TYPE e) {
-			if(lastReturned == null) throw new IllegalStateException();
-			if(node.next == null) linkLast(e);
-			else linkBefore(e, node);
             lastReturned = null;
+            if (next == null) linkLast(e);
+            else linkBefore(e, next);
             index++;
 		}
 	}

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

@@ -1,5 +1,8 @@
 package speiger.src.collections.PACKAGE.lists;
 
+#if PRIMITIVES
+import java.nio.JAVA_BUFFER;
+#endif
 import java.util.List;
 #if !TYPE_OBJECT && !TYPE_BOOLEAN
 import java.util.Objects;
@@ -17,6 +20,7 @@ import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
+import speiger.src.collections.PACKAGE.utils.LISTS;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
 #if TYPE_BYTE || TYPE_SHORT || TYPE_CHAR || TYPE_FLOAT
 import speiger.src.collections.utils.SanityChecks;
@@ -47,6 +51,26 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	public void add(int index, KEY_TYPE e);
 	
 #endif
+	/**
+	 * A Helper function that will only add elements if it is not present.
+	 * @param e the element to add
+	 * @return true if the list was modified
+	 */
+	public default boolean addIfAbsent(KEY_TYPE e) {
+		if(indexOf(e) == -1) return add(e);
+		return false;
+	}
+	
+	/**
+	 * A Helper function that will only add elements if it is present.
+	 * @param e the element to add
+	 * @return true if the list was modified
+	 */
+	public default boolean addIfPresent(KEY_TYPE e) {
+		if(indexOf(e) != -1) return add(e);
+		return false;
+	}
+	
 	/**
 	 * A Type-Specific addAll Function to reduce (un)boxing
 	 * @param c the elements that need to be added
@@ -169,7 +193,6 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	 * @param offset the start index of the array should be read from
 	 * @param length how many elements should be read from
 	 * @throws IndexOutOfBoundsException if from is outside of the lists range
-	 * @throws IllegalStateException if offset or length are smaller then 0 or exceed the array length
 	 */
 	public void addElements(int from, KEY_TYPE[] a, int offset, int length);
 	
@@ -204,6 +227,22 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	 */
 	public void removeElements(int from, int to);
 	
+	/**
+	 * A Highly Optimized remove function that removes the desired element.
+	 * But instead of shifting the elements to the left it moves the last element to the removed space.
+	 * @param index the index of the element to be removed
+	 * @return the element previously at the specified position
+	 */
+	public KEY_TYPE swapRemove(int index);
+	
+	/**
+	 * A Highly Optimized remove function that removes the desired element.
+	 * But instead of shifting the elements to the left it moves the last element to the removed space.
+	 * @param e the element that should be removed
+	 * @return true if the element was removed
+	 */
+	public boolean REMOVE_SWAP(KEY_TYPE e);
+	
 #if TYPE_OBJECT
 	/**
 	 * A function to fast extract elements out of the list, this removes the elements that were fetched.
@@ -256,6 +295,14 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	 */
 	public KEY_TYPE[] extractElements(int from, int to);
 	
+#if PRIMITIVES
+	/**
+	 * Helper function that allows to fastFill a buffer reducing the duplication requirement
+	 * @param buffer where the data should be stored in.
+	 */
+	public default void fillBuffer(JAVA_BUFFER buffer) { buffer.put(TO_ARRAY()); }
+	
+#endif
 	/** {@inheritDoc}
 	 * <p>This default implementation delegates to the corresponding type-specific function.
 	 * @deprecated Please use the corresponding type-specific function instead. 
@@ -332,6 +379,28 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	@Override
 	public LIST KEY_GENERIC_TYPE subList(int from, int to);
 	
+	/**
+	 * Creates a Wrapped List that is Synchronized
+	 * @return a new List that is synchronized
+	 * @see LISTS#synchronize
+	 */
+	public default LIST KEY_GENERIC_TYPE synchronize() { return LISTS.synchronize(this); }
+	
+	/**
+	 * Creates a Wrapped List that is Synchronized
+	 * @param mutex is the controller of the synchronization block
+	 * @return a new List Wrapper that is synchronized
+	 * @see LISTS#synchronize
+	 */
+	public default LIST KEY_GENERIC_TYPE synchronize(Object mutex) { return LISTS.synchronize(this, mutex); }
+	
+	/**
+	 * Creates a Wrapped List that is unmodifiable
+	 * @return a new List Wrapper that is unmodifiable
+	 * @see LISTS#unmodifiable
+	 */
+	public default LIST KEY_GENERIC_TYPE unmodifiable() { return LISTS.unmodifiable(this); }
+	
 	/**
 	 * A function to ensure the elements are within the requested size.
 	 * If smaller then the stored elements they get removed as needed.
@@ -340,6 +409,8 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
 	 */
 	public void size(int size);
 	
+	@Override
+	public LIST KEY_GENERIC_TYPE copy();
 #if !TYPE_OBJECT
 	
 	/** {@inheritDoc}

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

@@ -18,6 +18,7 @@ import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
 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;
 #if !TYPE_OBJECT && !VALUE_OBJECT
 import speiger.src.collections.objects.collections.ObjectIterator;
 #endif
@@ -46,6 +47,11 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 		return this;
 	}
 	
+	@Override
+	public MAP KEY_VALUE_GENERIC_TYPE copy() { 
+		throw new UnsupportedOperationException();
+	}
+	
 #if !TYPE_OBJECT || !VALUE_OBJECT
 	@Override
 	@Deprecated
@@ -84,6 +90,15 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 		for(int i = 0;i<size;i++) put(keys[i], values[i]);
 	}
 	
+#if !TYPE_OBJECT || !VALUE_OBJECT
+	@Override
+	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]);		
+	}
+	
+#endif
 	@Override
 	public void putAllIfAbsent(MAP KEY_VALUE_GENERIC_TYPE m) {
 		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m))
@@ -189,6 +204,20 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 		return value;
 	}
 	
+	@Override
+	public VALUE_TYPE SUPPLY_IF_ABSENT(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();
+			if(VALUE_EQUALS_NOT(newValue, getDefaultReturnValue())) {
+				put(key, newValue);
+				return newValue;
+			}
+		}
+		return value;
+	}
+	
 	@Override
 	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
@@ -475,7 +504,7 @@ public abstract class ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE extends AbstractMap<CL
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(key) + "->" + VALUE_TO_STRING(value);
+			return KEY_TO_STRING(key) + "=" + VALUE_TO_STRING(value);
 		}
 	}
 }

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

@@ -1,23 +1,24 @@
 package speiger.src.collections.PACKAGE.maps.impl.customHash;
 
+import java.util.Arrays;
 import java.util.Comparator;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 import java.util.Objects;
 
 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
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
-#if !TYPE_OBJECT && !VALUE_OBJECT
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
 #endif
 #if !TYPE_OBJECT || 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.SINGLE_UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.SORTED_MAP;
@@ -28,6 +29,9 @@ 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_ITERATOR;
+#if !SAME_TYPE
+import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
+#endif
 #if !VALUE_OBJECT && !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_CONSUMER;
 import speiger.src.collections.VALUE_PACKAGE.lists.VALUE_LIST_ITERATOR;
@@ -41,10 +45,17 @@ import speiger.src.collections.objects.functions.function.Object2BooleanFunction
 #endif
 #endif
 #if !SAME_TYPE
-import speiger.src.collections.VALUE_PACKAGE.functions.consumer.VALUE_BI_OBJECT_CONSUMER;
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
+
+#endif
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
 #endif
 #if !TYPE_OBJECT
+#if !VALUE_OBJECT
+import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOperator;
+
+#endif
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 import speiger.src.collections.objects.lists.ObjectListIterator;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
@@ -335,6 +346,23 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		return values[index];
 	}
 	
+	@Override
+	public LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE copy() {
+		LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE map = new LINKED_CUSTOM_HASH_MAPKV_BRACES(0, loadFactor, strategy);
+		map.minCapacity = minCapacity;
+		map.mask = mask;
+		map.maxFill = maxFill;
+		map.nullIndex = nullIndex;
+		map.containsNull = containsNull;
+		map.size = size;
+		map.keys = Arrays.copyOf(keys, keys.length);
+		map.values = Arrays.copyOf(values, values.length);
+		map.links = Arrays.copyOf(links, links.length);
+		map.firstIndex = firstIndex;
+		map.lastIndex = lastIndex;
+		return map;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() {
 		return null;
@@ -652,6 +680,9 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			return new FastEntryIterator(fromElement);
 		}
 		
+		@Override
+		public MapEntrySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			int index = firstIndex;
@@ -673,12 +704,12 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		}
 		
 		@Override
-		public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+		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(new BasicEntryKV_BRACES(keys[index], values[index]), input);
+				action.accept(input, new BasicEntryKV_BRACES(keys[index], values[index]));
 				index = (int)links[index];
 			}
 		}
@@ -725,6 +756,37 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			return true;
 		}
 		
+		@Override
+		public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
+			Objects.requireNonNull(operator);
+			E state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[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) {
+			Objects.requireNonNull(operator);
+			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+			boolean empty = true;
+			int index = firstIndex;
+			while(index != -1) {
+				if(empty) {
+					empty = false;
+					state = new BasicEntryKV_BRACES(keys[index], values[index]);
+					index = (int)links[index];
+					continue;
+				}
+				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[index]));
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
@@ -739,12 +801,38 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			return null;
 		}
 		
+		@Override
+		public int count(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			int result = 0;
+			int index = firstIndex;
+			while(index != -1) {
+				entry.set(keys[index], values[index]);
+				if(filter.getBoolean(entry)) result++;
+				index = (int)links[index];
+			}
+			return result;
+		}
+		
 		@Override
 		@Deprecated
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return LINKED_CUSTOM_HASH_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return LINKED_CUSTOM_HASH_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					int index = LINKED_CUSTOM_HASH_MAP.this.findIndex(entry.ENTRY_KEY());
+					if(index >= 0) return VALUE_EQUALS(entry.ENTRY_VALUE(), LINKED_CUSTOM_HASH_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+#if !TYPE_OBJECT
+					if(!(entry.getKey() instanceof CLASS_TYPE)) return false;
+#endif
+					int index = LINKED_CUSTOM_HASH_MAP.this.findIndex((CLASS_TYPE)entry.getKey());
+					if(index >= 0) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(LINKED_CUSTOM_HASH_MAP.this.values[index]));
+				}
 			}
 			return false;
 		}
@@ -796,7 +884,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		@Override
 		public boolean remove(Object o) {
 			int oldSize = size;
-			remove(o);
+			LINKED_CUSTOM_HASH_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -809,7 +897,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		@Override
 		public boolean remove(KEY_TYPE o) {
 			int oldSize = size;
-			remove(o);
+			LINKED_CUSTOM_HASH_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -845,6 +933,9 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			return new KeyIterator(fromElement);
 		}
 		
+		@Override
+		public KeySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public int size() {
 			return LINKED_CUSTOM_HASH_MAP.this.size();
@@ -885,12 +976,12 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		}
 		
 		@Override
-		public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
 			int index = firstIndex;
 			while(index != -1){
-				action.accept(keys[index], input);
+				action.accept(input, keys[index]);
 				index = (int)links[index];
 			}
 		}
@@ -931,6 +1022,52 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			return true;
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.APPLY_KEY_VALUE(state, keys[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			KEY_SPECIAL_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.apply(state, keys[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = EMPTY_KEY_VALUE;
+			boolean empty = true;
+			int index = firstIndex;
+			while(index != -1) {
+				if(empty) {
+					empty = false;
+					state = keys[index];
+					index = (int)links[index];
+					continue;
+				}
+				state = operator.APPLY_KEY_VALUE(state, keys[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
 		@Override
 		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -943,6 +1080,19 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			return EMPTY_KEY_VALUE;
 		}
 		
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			int result = 0;
+			int index = firstIndex;
+			while(index != -1){
+				if(filter.TEST_VALUE(keys[index])) result++;
+				index = (int)links[index];
+			}
+			return result;
+		}
+		
 		@Override
 		public COMPARATOR KEY_GENERIC_TYPE comparator() { return null; }
 		
@@ -1001,12 +1151,12 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		}
 		
 		@Override
-		public <E> void forEach(E input, VALUE_BI_OBJECT_CONSUMER VVS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
 			int index = firstIndex;
 			while(index != -1){
-				action.accept(values[index], input);
+				action.accept(input, values[index]);
 				index = (int)links[index];
 			}
 		}
@@ -1047,6 +1197,52 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			return true;
 		}
 		
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.APPLY_VALUE(state, values[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			VALUE_SPECIAL_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.apply(state, values[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = EMPTY_VALUE;
+			boolean empty = true;
+			int index = firstIndex;
+			while(index != -1) {
+				if(empty) {
+					empty = false;
+					state = values[index];
+					index = (int)links[index];
+					continue;
+				}
+				state = operator.APPLY_VALUE(state, values[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
 		@Override
 		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -1058,6 +1254,19 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			}
 			return EMPTY_VALUE;
 		}
+		
+		@Override
+		public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			int result = 0;
+			int index = firstIndex;
+			while(index != -1){
+				if(filter.VALUE_TEST_VALUE(values[index])) result++;
+				index = (int)links[index];
+			}
+			return result;
+		}
 	}
 	
 	private class FastEntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {

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

@@ -1,20 +1,23 @@
 package speiger.src.collections.PACKAGE.maps.impl.customHash;
 
 import java.util.Arrays;
+import java.util.ConcurrentModificationException;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Objects;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 
 #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.PACKAGE.functions.consumer.BI_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
-#if !TYPE_OBJECT && !VALUE_OBJECT
+#if !SAME_TYPE
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
 #endif
 #if !TYPE_OBJECT && !VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
@@ -31,12 +34,20 @@ import speiger.src.collections.PACKAGE.sets.SET;
 import speiger.src.collections.PACKAGE.utils.STRATEGY;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_SUPPLIER;
 #if !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
+
 #if !VALUE_OBJECT
+#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
+#else if !VALUE_OBJECT
+import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOperator;
+
 #endif
 #if !TYPE_OBJECT && !VALUE_OBJECT || !VALUE_OBJECT
 import speiger.src.collections.objects.functions.consumer.ObjectObjectConsumer;
@@ -47,7 +58,10 @@ import speiger.src.collections.objects.functions.function.Object2BooleanFunction
 #endif
 #endif
 #if !SAME_TYPE
-import speiger.src.collections.VALUE_PACKAGE.functions.consumer.VALUE_BI_OBJECT_CONSUMER;
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
+
+#endif
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
 #endif
 import speiger.src.collections.objects.collections.ObjectIterator;
@@ -293,8 +307,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 #if !VALUE_OBJECT
 	@Override
 	public boolean containsValue(VALUE_TYPE value) {
-		if(VALUE_EQUALS(value, values[nullIndex])) return true;
+		for(int i = nullIndex;i >= 0;i--)
-		for(int i = nullIndex-1;i >= 0;i--)
 			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && VALUE_EQUALS(values[i], value)) return true;
 		return false;
 	}
@@ -303,9 +316,12 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	@Override
 	@ValuePrimitive
 	public boolean containsValue(Object value) {
-		if((value == null && VALUE_EQUALS(values[nullIndex], getDefaultReturnValue())) || EQUALS_VALUE_TYPE(values[nullIndex], value)) return true;
+		for(int i = nullIndex;i >= 0;i--)
-		for(int i = nullIndex-1;i >= 0;i--)
+#if VALUE_OBJECT
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && EQUALS_VALUE_TYPE(values[i], value)) return true;
+#else
 			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE) && ((value == null && values[i] == getDefaultReturnValue()) || EQUALS_VALUE_TYPE(values[i], value))) return true;
+#endif
 		return false;
 	}
 	
@@ -324,7 +340,6 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	}
 	
 	@Override
-	@Deprecated
 	public CLASS_VALUE_TYPE remove(Object key) {
 #if !TYPE_OBJECT
 		if(!(key instanceof CLASS_TYPE)) return getDefaultReturnValue();
@@ -421,6 +436,20 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	}
 	
 #endif
+	@Override
+	public CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE copy() {
+		CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE map = new CUSTOM_HASH_MAPKV_BRACES(0, loadFactor, strategy);
+		map.minCapacity = minCapacity;
+		map.mask = mask;
+		map.maxFill = maxFill;
+		map.nullIndex = nullIndex;
+		map.containsNull = containsNull;
+		map.size = size;
+		map.keys = Arrays.copyOf(keys, keys.length);
+		map.values = Arrays.copyOf(values, values.length);
+		return map;
+	}
+	
 	@Override
 	public ObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
 		if(entrySet == null) entrySet = new MapEntrySet();
@@ -467,6 +496,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	
 	@Override
 	public VALUE_TYPE COMPUTE(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());
@@ -485,6 +515,7 @@ 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) {
+		Objects.requireNonNull(mappingFunction);
 		int index = findIndex(key);
 		if(index < 0) {
 			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
@@ -492,13 +523,39 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			insert(-index-1, key, newValue);
 			return newValue;
 		}
-		return values[index];
+		VALUE_TYPE newValue = values[index];
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = mappingFunction.GET_VALUE(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		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_GET_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 = valueProvider.VALUE_GET_KEY();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		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(index < 0) return getDefaultReturnValue();
+		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);
@@ -510,8 +567,12 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if VALUE_OBJECT
+		Objects.requireNonNull(value);
+#endif
 		int index = findIndex(key);
-		VALUE_TYPE newValue = index < 0 ? value : mappingFunction.APPLY_VALUE(values[index], value);
+		VALUE_TYPE newValue = index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? value : mappingFunction.APPLY_VALUE(values[index], value);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 			if(index >= 0)
 				removeIndex(index);
@@ -527,7 +588,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
 			KEY_TYPE key = entry.ENTRY_KEY();
 			int index = findIndex(key);
-			VALUE_TYPE newValue = index < 0 ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
+			VALUE_TYPE newValue = index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 				if(index >= 0)
 					removeIndex(index);
@@ -639,7 +700,10 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		KEY_TYPE[] newKeys = NEW_KEY_ARRAY(newSize + 1);
 		VALUE_TYPE[] newValues = NEW_VALUE_ARRAY(newSize + 1);
 		for(int i = nullIndex, pos = 0, j = (size - (containsNull ? 1 : 0));j-- != 0;) {
-			while(strategy.equals(keys[--i], EMPTY_KEY_VALUE));
+			while(true) {
+				if(--i < 0) throw new ConcurrentModificationException("Map was modified during rehash");
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) break;
+			}
 			if(!strategy.equals(newKeys[pos = HashUtil.mix(strategy.hashCode(keys[i])) & newMask], EMPTY_KEY_VALUE))
 				while(!strategy.equals(newKeys[pos = (++pos & newMask)], EMPTY_KEY_VALUE));
 			newKeys[pos] = keys[i];
@@ -741,7 +805,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "->" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
 		}
 	}
 	
@@ -779,12 +843,12 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		}
 		
 		@Override
-		public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+		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(new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]), input);
+			if(containsNull) action.accept(input, new BasicEntryKV_BRACES(keys[nullIndex], values[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]), input);
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(input, new BasicEntryKV_BRACES(keys[i], values[i]));
 			}
 		}
 		
@@ -842,6 +906,39 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			return true;
 		}
 		
+		@Override
+		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]));
+			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]));
+			}
+			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) {
+			Objects.requireNonNull(operator);
+			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+			boolean empty = true;
+			if(containsNull) {
+				state = new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]);
+				empty = false;
+			}
+			for(int i = 0;i<size;i++) {
+				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
+				if(empty) {
+					empty = false;
+					state = new BasicEntryKV_BRACES(keys[i], values[i]);
+					continue;
+				}
+				state = operator.apply(state, new BasicEntryKV_BRACES(keys[i], values[i]));
+			}
+			return state;
+		}
+		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
@@ -860,6 +957,25 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			return null;
 		}
 		
+		@Override
+		public int count(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			int result = 0;
+			if(containsNull) {
+				entry.set(keys[nullIndex], values[nullIndex]);
+				if(filter.getBoolean(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++;
+				}
+			}
+			return result;
+		}
+		
 		@Override
 		public int size() {
 			return CUSTOM_HASH_MAP.this.size();
@@ -873,8 +989,19 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		@Override
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return CUSTOM_HASH_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return CUSTOM_HASH_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					int index = CUSTOM_HASH_MAP.this.findIndex(entry.ENTRY_KEY());
+					if(index >= 0) return VALUE_EQUALS(entry.ENTRY_VALUE(), CUSTOM_HASH_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+#if !TYPE_OBJECT
+					if(!(entry.getKey() instanceof CLASS_TYPE)) return false;
+#endif
+					int index = CUSTOM_HASH_MAP.this.findIndex((CLASS_TYPE)entry.getKey());
+					if(index >= 0) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(CUSTOM_HASH_MAP.this.values[index]));
+				}
 			}
 			return false;
 		}
@@ -903,7 +1030,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		@Override
 		public boolean remove(Object o) {
 			int oldSize = size;
-			remove(o);
+			CUSTOM_HASH_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -916,7 +1043,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		@Override
 		public boolean remove(KEY_TYPE o) {
 			int oldSize = size;
-			remove(o);
+			CUSTOM_HASH_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -931,6 +1058,9 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			return new KeyIterator();
 		}
 		
+		@Override
+		public KeySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public int size() {
 			return CUSTOM_HASH_MAP.this.size();
@@ -943,18 +1073,19 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		
 		@Override
 		public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
+			Objects.requireNonNull(action);
 			if(containsNull) action.accept(keys[nullIndex]);
 			for(int i = nullIndex-1;i>=0;i--)
-				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(keys[i]);
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(keys[i]);
 		}
 		
 		@Override
-		public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
-			if(containsNull) action.accept(keys[nullIndex], input);
+			if(containsNull) action.accept(input, keys[nullIndex]);
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(keys[i], input);
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(input, keys[i]);
 			}
 		}
 		
@@ -991,6 +1122,54 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			return true;
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = identity;
+			if(containsNull) state = operator.APPLY_KEY_VALUE(state, keys[nullIndex]);
+			for(int i = nullIndex-1;i>=0;i--) {
+				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
+				state = operator.APPLY_KEY_VALUE(state, keys[i]);
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			KEY_SPECIAL_TYPE state = identity;
+			if(containsNull) state = operator.apply(state, keys[nullIndex]);
+			for(int i = nullIndex-1;i>=0;i--) {
+				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
+				state = operator.apply(state, keys[i]);
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = EMPTY_KEY_VALUE;
+			boolean empty = true;
+			if(containsNull) {
+				state = keys[nullIndex];
+				empty = false;
+			}
+			for(int i = 0;i<size;i++) {
+				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
+				if(empty) {
+					empty = false;
+					state = keys[i];
+					continue;
+				}
+				state = operator.APPLY_KEY_VALUE(state, keys[i]);
+			}
+			return state;
+		}
+		
 		@Override
 		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -1001,6 +1180,18 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			}
 			return EMPTY_KEY_VALUE;
 		}
+		
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			int result = 0;
+			if(containsNull && filter.TEST_VALUE(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++;
+			}
+			return result;
+		}
 	}
 	
 	private class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE {
@@ -1045,12 +1236,12 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		}
 		
 		@Override
-		public <E> void forEach(E input, VALUE_BI_OBJECT_CONSUMER VVS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
-			if(containsNull) action.accept(values[nullIndex], input);
+			if(containsNull) action.accept(input, values[nullIndex]);
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(values[i], input);
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(input, values[i]);
 			}
 		}
 		
@@ -1087,6 +1278,54 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			return true;
 		}
 		
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = identity;
+			if(containsNull) state = operator.APPLY_VALUE(state, values[nullIndex]);
+			for(int i = nullIndex-1;i>=0;i--) {
+				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
+				state = operator.APPLY_VALUE(state, values[i]);
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			VALUE_SPECIAL_TYPE state = identity;
+			if(containsNull) state = operator.APPLY_VALUE(state, values[nullIndex]);
+			for(int i = nullIndex-1;i>=0;i--) {
+				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
+				state = operator.APPLY_VALUE(state, values[i]);
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = EMPTY_VALUE;
+			boolean empty = true;
+			if(containsNull) {
+				state = values[nullIndex];
+				empty = false;
+			}
+			for(int i = 0;i<size;i++) {
+				if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
+				if(empty) {
+					empty = false;
+					state = values[i];
+					continue;
+				}
+				state = operator.APPLY_VALUE(state, values[i]);
+			}
+			return state;
+		}
+		
 		@Override
 		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -1097,6 +1336,18 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 			}
 			return EMPTY_VALUE;
 		}
+		
+		@Override
+		public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			int result = 0;
+			if(containsNull && filter.VALUE_TEST_VALUE(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++;
+			}
+			return result;
+		}
 	}
 	
 	private class FastEntryIterator extends MapIterator implements ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
@@ -1138,6 +1389,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	
 	private class MapIterator {
 		int pos = nullIndex;
+		int returnedPos = -1;
 		int lastReturned = -1;
 		int nextIndex = Integer.MIN_VALUE;
 		boolean returnNull = containsNull;
@@ -1169,6 +1421,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		
 		public int nextEntry() {
 			if(!hasNext()) throw new NoSuchElementException();
+			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
 				int value = findIndex(wrapped.GET_KEY(nextIndex));
@@ -1188,9 +1441,10 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 				keys[nullIndex] = EMPTY_KEY_VALUE;
 				values[nullIndex] = EMPTY_VALUE;
 			}
-			else if(pos >= 0) shiftKeys(pos);
+			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				CUSTOM_HASH_MAP.this.remove(wrapped.GET_KEY(-pos - 1));
+				CUSTOM_HASH_MAP.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				lastReturned = -1;
 				return;
 			}
 			size--;

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

@@ -1,23 +1,24 @@
 package speiger.src.collections.PACKAGE.maps.impl.hash;
 
+import java.util.Arrays;
 import java.util.Comparator;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 import java.util.Objects;
 
 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
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
-#if !TYPE_OBJECT && !VALUE_OBJECT
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
 #endif
 #if !TYPE_OBJECT || 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.SINGLE_UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.SORTED_MAP;
@@ -27,6 +28,9 @@ import speiger.src.collections.PACKAGE.sets.SET;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ITERATOR;
+#if !SAME_TYPE
+import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
+#endif
 #if !VALUE_OBJECT && !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_CONSUMER;
 import speiger.src.collections.VALUE_PACKAGE.lists.VALUE_LIST_ITERATOR;
@@ -40,10 +44,17 @@ import speiger.src.collections.objects.functions.function.Object2BooleanFunction
 #endif
 #endif
 #if !SAME_TYPE
-import speiger.src.collections.VALUE_PACKAGE.functions.consumer.VALUE_BI_OBJECT_CONSUMER;
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
+
+#endif
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
 #endif
 #if !TYPE_OBJECT
+#if !VALUE_OBJECT
+import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOperator;
+
+#endif
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 import speiger.src.collections.objects.lists.ObjectListIterator;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
@@ -312,6 +323,50 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		return values[index];
 	}
 	
+#if !VALUE_OBJECT
+	@Override
+	public boolean containsValue(VALUE_TYPE value) {
+		int index = firstIndex;
+		while(index != -1) {
+			if(VALUE_EQUALS(values[index], value)) return true;
+			index = (int)links[index];
+		}
+		return false;
+	}
+	
+#endif
+	@Override
+	@ValuePrimitive
+	public boolean containsValue(Object value) {
+		int index = firstIndex;
+		while(index != -1) {
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(values[index], value)) return true;
+#else
+			if((value == null && values[index] == getDefaultReturnValue()) || EQUALS_VALUE_TYPE(values[index], value)) return true;
+#endif
+			index = (int)links[index];
+		}
+		return false;
+	}
+	
+	@Override
+	public LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE copy() {
+		LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE map = new LINKED_HASH_MAPKV_BRACES(0, loadFactor);
+		map.minCapacity = minCapacity;
+		map.mask = mask;
+		map.maxFill = maxFill;
+		map.nullIndex = nullIndex;
+		map.containsNull = containsNull;
+		map.size = size;
+		map.keys = Arrays.copyOf(keys, keys.length);
+		map.values = Arrays.copyOf(values, values.length);
+		map.links = Arrays.copyOf(links, links.length);
+		map.firstIndex = firstIndex;
+		map.lastIndex = lastIndex;
+		return map;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() {
 		return null;
@@ -629,6 +684,9 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			return new FastEntryIterator(fromElement);
 		}
 		
+		@Override
+		public MapEntrySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			int index = firstIndex;
@@ -650,12 +708,12 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		}
 		
 		@Override
-		public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+		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(new BasicEntryKV_BRACES(keys[index], values[index]), input);
+				action.accept(input, new BasicEntryKV_BRACES(keys[index], values[index]));
 				index = (int)links[index];
 			}
 		}
@@ -702,6 +760,37 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			return true;
 		}
 		
+		@Override
+		public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
+			Objects.requireNonNull(operator);
+			E state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[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) {
+			Objects.requireNonNull(operator);
+			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+			boolean empty = true;
+			int index = firstIndex;
+			while(index != -1) {
+				if(empty) {
+					empty = false;
+					state = new BasicEntryKV_BRACES(keys[index], values[index]);
+					index = (int)links[index];
+					continue;
+				}
+				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[index]));
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
@@ -716,12 +805,35 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			return null;
 		}
 		
+		@Override
+		public int count(Object2BooleanFunction<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();
+			int index = firstIndex;
+			while(index != -1) {
+				entry.set(keys[index], values[index]);
+				if(filter.getBoolean(entry)) result++;
+				index = (int)links[index];
+			}
+			return result;
+		}
+		
 		@Override
 		@Deprecated
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return LINKED_HASH_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return LINKED_HASH_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					int index = LINKED_HASH_MAP.this.findIndex(entry.ENTRY_KEY());
+					if(index >= 0) return VALUE_EQUALS(entry.ENTRY_VALUE(), LINKED_HASH_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					int index = LINKED_HASH_MAP.this.findIndex(entry.getKey());
+					if(index >= 0) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(LINKED_HASH_MAP.this.values[index]));
+				}
 			}
 			return false;
 		}
@@ -773,7 +885,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		@Override
 		public boolean remove(Object o) {
 			int oldSize = size;
-			remove(o);
+			LINKED_HASH_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -786,7 +898,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		@Override
 		public boolean remove(KEY_TYPE o) {
 			int oldSize = size;
-			remove(o);
+			LINKED_HASH_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -822,6 +934,9 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			return new KeyIterator(fromElement);
 		}
 		
+		@Override
+		public KeySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public int size() {
 			return LINKED_HASH_MAP.this.size();
@@ -862,12 +977,12 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		}
 		
 		@Override
-		public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
 			int index = firstIndex;
 			while(index != -1){
-				action.accept(keys[index], input);
+				action.accept(input, keys[index]);
 				index = (int)links[index];
 			}
 		}
@@ -901,13 +1016,59 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
 			int index = firstIndex;
-			while(index != -1){
+			while(index != -1) {
 				if(!filter.TEST_VALUE(keys[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.APPLY_KEY_VALUE(state, keys[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			KEY_SPECIAL_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.apply(state, keys[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = EMPTY_KEY_VALUE;
+			boolean empty = true;
+			int index = firstIndex;
+			while(index != -1) {
+				if(empty) {
+					empty = false;
+					state = keys[index];
+					index = (int)links[index];
+					continue;
+				}
+				state = operator.APPLY_KEY_VALUE(state, keys[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
 		@Override
 		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -920,6 +1081,19 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			return EMPTY_KEY_VALUE;
 		}
 		
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			int result = 0;
+			int index = firstIndex;
+			while(index != -1){
+				if(filter.TEST_VALUE(keys[index])) return result++;
+				index = (int)links[index];
+			}
+			return result;
+		}
+		
 		@Override
 		public COMPARATOR KEY_GENERIC_TYPE comparator() { return null; }
 		
@@ -979,12 +1153,12 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		}
 		
 		@Override
-		public <E> void forEach(E input, VALUE_BI_OBJECT_CONSUMER VVS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
 			int index = firstIndex;
 			while(index != -1){
-				action.accept(values[index], input);
+				action.accept(input, values[index]);
 				index = (int)links[index];
 			}
 		}
@@ -1006,7 +1180,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
 			int index = firstIndex;
-			while(index != -1){
+			while(index != -1) {
 				if(filter.VALUE_TEST_VALUE(values[index])) return false;
 				index = (int)links[index];
 			}
@@ -1018,13 +1192,59 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			Objects.requireNonNull(filter);
 			if(size() <= 0) return true;
 			int index = firstIndex;
-			while(index != -1){
+			while(index != -1) {
 				if(!filter.VALUE_TEST_VALUE(values[index])) return false;
 				index = (int)links[index];
 			}
 			return true;
 		}
 		
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.APPLY_VALUE(state, values[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			VALUE_SPECIAL_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.apply(state, values[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = EMPTY_VALUE;
+			boolean empty = true;
+			int index = firstIndex;
+			while(index != -1) {
+				if(empty) {
+					empty = false;
+					state = values[index];
+					index = (int)links[index];
+					continue;
+				}
+				state = operator.APPLY_VALUE(state, values[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
 		@Override
 		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -1036,6 +1256,19 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			}
 			return EMPTY_VALUE;
 		}
+		
+		@Override
+		public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			int result = 0;
+			int index = firstIndex;
+			while(index != -1){
+				if(filter.VALUE_TEST_VALUE(values[index])) result++;
+				index = (int)links[index];
+			}
+			return result;
+		}
 	}
 	
 	private class FastEntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {

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

@@ -1,20 +1,23 @@
 package speiger.src.collections.PACKAGE.maps.impl.hash;
 
 import java.util.Arrays;
+import java.util.ConcurrentModificationException;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Objects;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 
 #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.PACKAGE.functions.consumer.BI_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
-#if !TYPE_OBJECT && !VALUE_OBJECT
+#if !SAME_TYPE
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
 #endif
 #if !TYPE_OBJECT && !VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
@@ -30,12 +33,20 @@ import speiger.src.collections.PACKAGE.sets.SET;
 #endif
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_SUPPLIER;
 #if !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
+
 #if !VALUE_OBJECT
+#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
+#else if !VALUE_OBJECT
+import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOperator;
+
 #endif
 #if !TYPE_OBJECT && !VALUE_OBJECT || !VALUE_OBJECT
 import speiger.src.collections.objects.functions.consumer.ObjectObjectConsumer;
@@ -46,7 +57,10 @@ import speiger.src.collections.objects.functions.function.Object2BooleanFunction
 #endif
 #endif
 #if !SAME_TYPE
-import speiger.src.collections.VALUE_PACKAGE.functions.consumer.VALUE_BI_OBJECT_CONSUMER;
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
+#endif
+
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
 #endif
 import speiger.src.collections.objects.collections.ObjectIterator;
@@ -264,8 +278,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 #if !VALUE_OBJECT
 	@Override
 	public boolean containsValue(VALUE_TYPE value) {
-		if(VALUE_EQUALS(value, values[nullIndex])) return true;
+		for(int i = nullIndex;i >= 0;i--)
-		for(int i = nullIndex-1;i >= 0;i--)
 			if(KEY_EQUALS_NOT_NULL(keys[i]) && VALUE_EQUALS(values[i], value)) return true;
 		return false;
 	}
@@ -274,9 +287,12 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	@Override
 	@ValuePrimitive
 	public boolean containsValue(Object value) {
-		if((value == null && VALUE_EQUALS(values[nullIndex], getDefaultReturnValue())) || EQUALS_VALUE_TYPE(values[nullIndex], value)) return true;
+		for(int i = nullIndex;i >= 0;i--)
-		for(int i = nullIndex-1;i >= 0;i--)
+#if VALUE_OBJECT
+			if(KEY_EQUALS_NOT_NULL(keys[i]) && EQUALS_VALUE_TYPE(values[i], value)) return true;
+#else
 			if(KEY_EQUALS_NOT_NULL(keys[i]) && ((value == null && values[i] == getDefaultReturnValue()) || EQUALS_VALUE_TYPE(values[i], value))) return true;
+#endif
 		return false;
 	}
 	
@@ -295,7 +311,6 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	}
 	
 	@Override
-	@Deprecated
 	public CLASS_VALUE_TYPE remove(Object key) {
 		int slot = findIndex(key);
 		if(slot < 0) return VALUE_TO_OBJ(getDefaultReturnValue());
@@ -382,6 +397,20 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	}
 	
 #endif
+	@Override
+	public HASH_MAP KEY_VALUE_GENERIC_TYPE copy() {
+		HASH_MAP KEY_VALUE_GENERIC_TYPE map = new HASH_MAPKV_BRACES(0, loadFactor);
+		map.minCapacity = minCapacity;
+		map.mask = mask;
+		map.maxFill = maxFill;
+		map.nullIndex = nullIndex;
+		map.containsNull = containsNull;
+		map.size = size;
+		map.keys = Arrays.copyOf(keys, keys.length);
+		map.values = Arrays.copyOf(values, values.length);
+		return map;
+	}
+	
 	@Override
 	public ObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
 		if(entrySet == null) entrySet = new MapEntrySet();
@@ -428,6 +457,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	
 	@Override
 	public VALUE_TYPE COMPUTE(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());
@@ -446,6 +476,7 @@ 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) {
+		Objects.requireNonNull(mappingFunction);
 		int index = findIndex(key);
 		if(index < 0) {
 			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
@@ -453,13 +484,39 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			insert(-index-1, key, newValue);
 			return newValue;
 		}
-		return values[index];
+		VALUE_TYPE newValue = values[index];
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = mappingFunction.GET_VALUE(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		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_GET_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 = valueProvider.VALUE_GET_KEY();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		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(index < 0) return getDefaultReturnValue();
+		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);
@@ -471,8 +528,12 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if VALUE_OBJECT
+		Objects.requireNonNull(value);
+#endif
 		int index = findIndex(key);
-		VALUE_TYPE newValue = index < 0 ? value : mappingFunction.APPLY_VALUE(values[index], value);
+		VALUE_TYPE newValue = index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? value : mappingFunction.APPLY_VALUE(values[index], value);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 			if(index >= 0)
 				removeIndex(index);
@@ -488,7 +549,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
 			KEY_TYPE key = entry.ENTRY_KEY();
 			int index = findIndex(key);
-			VALUE_TYPE newValue = index < 0 ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
+			VALUE_TYPE newValue = index < 0 || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 				if(index >= 0)
 					removeIndex(index);
@@ -599,7 +660,10 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		KEY_TYPE[] newKeys = NEW_KEY_ARRAY(newSize + 1);
 		VALUE_TYPE[] newValues = NEW_VALUE_ARRAY(newSize + 1);
 		for(int i = nullIndex, pos = 0, j = (size - (containsNull ? 1 : 0));j-- != 0;) {
-			while(KEY_EQUALS_NULL(keys[--i]));
+			while(true) {
+				if(--i < 0) throw new ConcurrentModificationException("Map 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];
@@ -701,7 +765,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "->" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
 		}
 	}
 	
@@ -739,12 +803,12 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		}
 		
 		@Override
-		public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+		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(new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]), input);
+			if(containsNull) action.accept(input, new BasicEntryKV_BRACES(keys[nullIndex], values[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]), input);
+				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(input, new BasicEntryKV_BRACES(keys[i], values[i]));
 			}
 		}
 		
@@ -802,6 +866,39 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			return true;
 		}
 		
+		@Override
+		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]));
+			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]));
+			}
+			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) {
+			Objects.requireNonNull(operator);
+			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+			boolean empty = true;
+			if(containsNull) {
+				state = new BasicEntryKV_BRACES(keys[nullIndex], values[nullIndex]);
+				empty = false;
+			}
+			for(int i = 0;i<size;i++) {
+				if(KEY_EQUALS_NULL(keys[i])) continue;
+				if(empty) {
+					empty = false;
+					state = new BasicEntryKV_BRACES(keys[i], values[i]);
+					continue;
+				}
+				state = operator.apply(state, new BasicEntryKV_BRACES(keys[i], values[i]));
+			}
+			return state;
+		}
+		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
@@ -820,6 +917,25 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			return null;
 		}
 		
+		@Override
+		public int count(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			int result = 0;
+			if(containsNull) {
+				entry.set(keys[nullIndex], values[nullIndex]);
+				if(filter.getBoolean(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++;
+				}
+			}
+			return result;
+		}
+		
 		@Override
 		public int size() {
 			return HASH_MAP.this.size();
@@ -833,8 +949,16 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		@Override
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return HASH_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return HASH_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					int index = HASH_MAP.this.findIndex(entry.ENTRY_KEY());
+					if(index >= 0) return VALUE_EQUALS(entry.ENTRY_VALUE(), HASH_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					int index = HASH_MAP.this.findIndex(entry.getKey());
+					if(index >= 0) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(HASH_MAP.this.values[index]));
+				}
 			}
 			return false;
 		}
@@ -863,7 +987,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		@Override
 		public boolean remove(Object o) {
 			int oldSize = size;
-			remove(o);
+			HASH_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -876,7 +1000,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		@Override
 		public boolean remove(KEY_TYPE o) {
 			int oldSize = size;
-			remove(o);
+			HASH_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -901,6 +1025,9 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			HASH_MAP.this.clear();
 		}
 		
+		@Override
+		public KeySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
 			if(containsNull) action.accept(keys[nullIndex]);
@@ -909,12 +1036,12 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		}
 		
 		@Override
-		public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
-			if(containsNull) action.accept(keys[nullIndex], input);
+			if(containsNull) action.accept(input, keys[nullIndex]);
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(keys[i], input);
+				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(input, keys[i]);
 			}
 		}
 		
@@ -951,6 +1078,54 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			return true;
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = identity;
+			if(containsNull) state = operator.APPLY_KEY_VALUE(state, keys[nullIndex]);
+			for(int i = nullIndex-1;i>=0;i--) {
+				if(KEY_EQUALS_NULL(keys[i])) continue;
+				state = operator.APPLY_KEY_VALUE(state, keys[i]);
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			KEY_SPECIAL_TYPE state = identity;
+			if(containsNull) state = operator.apply(state, keys[nullIndex]);
+			for(int i = nullIndex-1;i>=0;i--) {
+				if(KEY_EQUALS_NULL(keys[i])) continue;
+				state = operator.apply(state, keys[i]);
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = EMPTY_KEY_VALUE;
+			boolean empty = true;
+			if(containsNull) {
+				state = keys[nullIndex];
+				empty = false;
+			}
+			for(int i = 0;i<size;i++) {
+				if(KEY_EQUALS_NULL(keys[i])) continue;
+				if(empty) {
+					empty = false;
+					state = keys[i];
+					continue;
+				}
+				state = operator.APPLY_KEY_VALUE(state, keys[i]);
+			}
+			return state;
+		}
+		
 		@Override
 		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -961,6 +1136,18 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			}
 			return EMPTY_KEY_VALUE;
 		}
+		
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			int result = 0;
+			if(containsNull && filter.TEST_VALUE(keys[nullIndex])) result++;
+			for(int i = nullIndex-1;i>=0;i--) {
+				if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.TEST_VALUE(keys[i])) result++;
+			}
+			return result;
+		}
 	}
 	
 	private class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE {
@@ -1005,12 +1192,12 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		}
 		
 		@Override
-		public <E> void forEach(E input, VALUE_BI_OBJECT_CONSUMER VVS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
-			if(containsNull) action.accept(values[nullIndex], input);
+			if(containsNull) action.accept(input, values[nullIndex]);
 			for(int i = nullIndex-1;i>=0;i--) {
-				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(values[i], input);
+				if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(input, values[i]);
 			}
 		}
 		
@@ -1047,6 +1234,54 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			return true;
 		}
 		
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = identity;
+			if(containsNull) state = operator.APPLY_VALUE(state, values[nullIndex]);
+			for(int i = nullIndex-1;i>=0;i--) {
+				if(KEY_EQUALS_NULL(keys[i])) continue;
+				state = operator.APPLY_VALUE(state, values[i]);
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			VALUE_SPECIAL_TYPE state = identity;
+			if(containsNull) state = operator.APPLY_VALUE(state, values[nullIndex]);
+			for(int i = nullIndex-1;i>=0;i--) {
+				if(KEY_EQUALS_NULL(keys[i])) continue;
+				state = operator.APPLY_VALUE(state, values[i]);
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = EMPTY_VALUE;
+			boolean empty = true;
+			if(containsNull) {
+				state = values[nullIndex];
+				empty = false;
+			}
+			for(int i = 0;i<size;i++) {
+				if(KEY_EQUALS_NULL(keys[i])) continue;
+				if(empty) {
+					empty = false;
+					state = values[i];
+					continue;
+				}
+				state = operator.APPLY_VALUE(state, values[i]);
+			}
+			return state;
+		}
+		
 		@Override
 		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -1057,6 +1292,18 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 			}
 			return EMPTY_VALUE;
 		}
+		
+		@Override
+		public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			int result = 0;
+			if(containsNull && filter.VALUE_TEST_VALUE(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++;
+			}
+			return result;
+		}
 	}
 	
 	private class FastEntryIterator extends MapIterator implements ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
@@ -1098,6 +1345,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	
 	private class MapIterator {
 		int pos = nullIndex;
+		int returnedPos = -1;
 		int lastReturned = -1;
 		int nextIndex = Integer.MIN_VALUE;
 		boolean returnNull = containsNull;
@@ -1129,6 +1377,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		
 		public int nextEntry() {
 			if(!hasNext()) throw new NoSuchElementException();
+			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
 				int value = findIndex(wrapped.GET_KEY(nextIndex));
@@ -1148,9 +1397,10 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 				keys[nullIndex] = EMPTY_KEY_VALUE;
 				values[nullIndex] = EMPTY_VALUE;
 			}
-			else if(pos >= 0) shiftKeys(pos);
+			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				HASH_MAP.this.remove(wrapped.GET_KEY(-pos - 1));
+				HASH_MAP.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				lastReturned = -1;
 				return;
 			}
 			size--;

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

@@ -1,18 +1,18 @@
 package speiger.src.collections.PACKAGE.maps.impl.immutable;
 
-import java.util.Map;
+import java.util.Arrays;
 import java.util.Comparator;
+import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Objects;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
-#endif
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
-#if !TYPE_OBJECT && !VALUE_OBJECT
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
 #endif
 #if !TYPE_OBJECT && !VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
@@ -20,6 +20,9 @@ import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+#if !SAME_TYPE
+import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
+#endif
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.maps.interfaces.SORTED_MAP;
 import speiger.src.collections.PACKAGE.maps.abstracts.ABSTRACT_MAP;
@@ -38,7 +41,10 @@ import speiger.src.collections.objects.functions.function.Object2BooleanFunction
 #endif
 #endif
 #if !SAME_TYPE
-import speiger.src.collections.VALUE_PACKAGE.functions.consumer.VALUE_BI_OBJECT_CONSUMER;
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
+
+#endif
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
 #endif
 #if !TYPE_OBJECT
@@ -48,6 +54,7 @@ import speiger.src.collections.PACKAGE.sets.SET;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ITERATOR;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_SUPPLIER;
 #if !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
 #if !VALUE_OBJECT
@@ -58,6 +65,10 @@ import speiger.src.collections.VALUE_PACKAGE.utils.VALUE_ARRAYS;
 #endif
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 #if !TYPE_OBJECT
+#if !VALUE_OBJECT
+import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOperator;
+
+#endif
 import speiger.src.collections.objects.lists.ObjectListIterator;
 import speiger.src.collections.objects.sets.ObjectSortedSet;
 #endif
@@ -101,6 +112,10 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	/** Amount of Elements stored in the HashMap */
 	protected int size;
 	
+	/**
+	 * Helper constructor for copying the Map
+	 */
+	protected IMMUTABLE_HASH_MAP() {}
 	
 #if !TYPE_OBJECT || !VALUE_OBJECT
 	/**
@@ -222,18 +237,34 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		{
 			KEY_TYPE o = a[i];
 			if(KEY_EQUALS_NULL(o)) {
-				if(!containsNull) size++;
+				if(!containsNull) {
+					size++;
+					if(prev != -1) {
+						newLinks[prev] ^= ((newLinks[prev] ^ (newSize & 0xFFFFFFFFL)) & 0xFFFFFFFFL);
+						newLinks[newSize] ^= ((newLinks[newSize] ^ ((prev & 0xFFFFFFFFL) << 32)) & 0xFFFFFFFF00000000L);
+						prev = newSize;
+					}
+					else {
+						prev = firstIndex = newSize;
+						newLinks[newSize] = -1L;
+					}
+				}
 				containsNull = true;
+				newValues[newSize] = b[i];
 				continue;
 			}
 			boolean found = true;
 			int pos = HashUtil.mix(KEY_TO_HASH(o)) & newMask;
 			KEY_TYPE current = newKeys[pos];
 			if(KEY_EQUALS_NOT_NULL(current)) {
-				if(KEY_EQUALS(current, o)) continue;
+				if(KEY_EQUALS(current, o)) {
-				while(KEY_EQUALS_NOT_NULL((current = newKeys[pos = (++pos & mask)]))) {
+					newValues[pos] = b[i];
+					continue;
+				}
+				while(KEY_EQUALS_NOT_NULL((current = newKeys[pos = (++pos & newMask)]))) {
 					if(KEY_EQUALS(current, o)) {
 						found = false;
+						newValues[pos] = b[i];
 						break;
 					}
 				}
@@ -241,7 +272,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			if(found) {
 				size++;
 				newKeys[pos] = o;
-				values[pos] = b[i];
+				newValues[pos] = b[i];
 				if(prev != -1) {
 					newLinks[prev] ^= ((newLinks[prev] ^ (pos & 0xFFFFFFFFL)) & 0xFFFFFFFFL);
 					newLinks[pos] ^= ((newLinks[pos] ^ ((prev & 0xFFFFFFFFL) << 32)) & 0xFFFFFFFF00000000L);
@@ -253,7 +284,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 				}
 			}
 		}
-		nullIndex = size;
+		nullIndex = newSize;
 		mask = newMask;
 		keys = newKeys;
 		values = newValues;
@@ -301,9 +332,11 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 #if !VALUE_OBJECT
 	@Override
 	public boolean containsValue(VALUE_TYPE value) {
-		if(VALUE_EQUALS(value, values[nullIndex])) return true;
+		int index = firstIndex;
-		for(int i = nullIndex-1;i >= 0;i--)
+		while(index != -1) {
-			if(KEY_EQUALS_NOT_NULL(keys[i]) && VALUE_EQUALS(values[i], value)) return true;
+			if(VALUE_EQUALS(values[index], value)) return true;
+			index = (int)links[index];
+		}
 		return false;
 	}
 	
@@ -311,9 +344,15 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	@Override
 	@ValuePrimitive
 	public boolean containsValue(Object value) {
-		if((value == null && VALUE_EQUALS(values[nullIndex], getDefaultReturnValue())) || EQUALS_VALUE_TYPE(values[nullIndex], value)) return true;
+		int index = firstIndex;
-		for(int i = nullIndex-1;i >= 0;i--)
+		while(index != -1) {
-			if(KEY_EQUALS_NOT_NULL(keys[i]) && ((value == null && values[i] == getDefaultReturnValue()) || EQUALS_VALUE_TYPE(values[i], value))) return true;
+#if VALUE_OBJECT
+			if(VALUE_EQUALS(values[index], value)) return true;
+#else
+			if((value == null && values[index] == getDefaultReturnValue()) || EQUALS_VALUE_TYPE(values[index], value)) return true;
+#endif
+			index = (int)links[index];
+		}
 		return false;
 	}
 	
@@ -410,6 +449,21 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		return valuesC;
 	}
 	
+	@Override
+	public IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE copy() {
+		IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE map = new IMMUTABLE_HASH_MAPKV_BRACES();
+		map.mask = mask;
+		map.nullIndex = nullIndex;
+		map.containsNull = containsNull;
+		map.size = size;
+		map.keys = Arrays.copyOf(keys, keys.length);
+		map.values = Arrays.copyOf(values, values.length);
+		map.links = Arrays.copyOf(links, links.length);
+		map.firstIndex = firstIndex;
+		map.lastIndex = lastIndex;
+		return map;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() { return null; }
 	@Override
@@ -440,6 +494,9 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	@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(); }
 	
@@ -511,6 +568,9 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 				}
 				Map.Entry<?, ?> entry = (Map.Entry<?, ?>)obj;
 				Object key = entry.getKey();
+#if !TYPE_OBJECT
+				if(!(key instanceof CLASS_TYPE)) return false;
+#endif
 				Object value = entry.getValue();
 #if TYPE_OBJECT && VALUE_OBJECT
 				return KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], value);
@@ -532,7 +592,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "->" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
 		}
 	}
 	
@@ -584,6 +644,9 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			return new FastEntryIterator(fromElement);
 		}
 		
+		@Override
+		public MapEntrySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			int index = firstIndex;
@@ -605,12 +668,12 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		}
 		
 		@Override
-		public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+		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(new BasicEntryKV_BRACES(keys[index], values[index]), input);
+				action.accept(input, new BasicEntryKV_BRACES(keys[index], values[index]));
 				index = (int)links[index];
 			}
 		}
@@ -624,6 +687,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			while(index != -1) {
 				entry.set(keys[index], values[index]);
 				if(filter.getBoolean(entry)) return true;
+				index = (int)links[index];
 			}
 			return false;
 		}
@@ -637,6 +701,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			while(index != -1) {
 				entry.set(keys[index], values[index]);
 				if(filter.getBoolean(entry)) return false;
+				index = (int)links[index];
 			}
 			return true;
 		}
@@ -650,10 +715,42 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			while(index != -1) {
 				entry.set(keys[index], values[index]);
 				if(!filter.getBoolean(entry)) return false;
+				index = (int)links[index];
 			}
 			return true;
 		}
 		
+		@Override
+		public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
+			Objects.requireNonNull(operator);
+			E state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[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) {
+			Objects.requireNonNull(operator);
+			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+			boolean empty = true;
+			int index = firstIndex;
+			while(index != -1) {
+				if(empty) {
+					empty = false;
+					state = new BasicEntryKV_BRACES(keys[index], values[index]);
+					index = (int)links[index];
+					continue;
+				}
+				state = operator.apply(state, new BasicEntryKV_BRACES(keys[index], values[index]));
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
@@ -663,16 +760,40 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			while(index != -1) {
 				entry.set(keys[index], values[index]);
 				if(filter.getBoolean(entry)) return entry;
+				index = (int)links[index];
 			}
 			return null;
 		}
 		
+		@Override
+		public int count(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			BasicEntry KEY_VALUE_GENERIC_TYPE entry = new BasicEntryKV_BRACES();
+			int result = 0;
+			int index = firstIndex;
+			while(index != -1) {
+				entry.set(keys[index], values[index]);
+				if(filter.getBoolean(entry)) result++;
+				index = (int)links[index];
+			}
+			return result;
+		}
+		
 		@Override
 		@Deprecated
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return IMMUTABLE_HASH_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return IMMUTABLE_HASH_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					int index = IMMUTABLE_HASH_MAP.this.findIndex(entry.ENTRY_KEY());
+					if(index >= 0) return VALUE_EQUALS(entry.ENTRY_VALUE(), IMMUTABLE_HASH_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					int index = IMMUTABLE_HASH_MAP.this.findIndex(entry.getKey());
+					if(index >= 0) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(IMMUTABLE_HASH_MAP.this.values[index]));
+				}
 			}
 			return false;
 		}
@@ -749,6 +870,9 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			return new KeyIterator(fromElement);
 		}
 		
+		@Override
+		public KeySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public int size() {
 			return IMMUTABLE_HASH_MAP.this.size();
@@ -783,12 +907,12 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		}
 		
 		@Override
-		public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
 			int index = firstIndex;
 			while(index != -1){
-				action.accept(keys[index], input);
+				action.accept(input, keys[index]);
 				index = (int)links[index];
 			}
 		}
@@ -829,6 +953,52 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			return true;
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.APPLY_KEY_VALUE(state, keys[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			KEY_SPECIAL_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.apply(state, keys[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = EMPTY_KEY_VALUE;
+			boolean empty = true;
+			int index = firstIndex;
+			while(index != -1) {
+				if(empty) {
+					empty = false;
+					state = keys[index];
+					index = (int)links[index];
+					continue;
+				}
+				state = operator.APPLY_KEY_VALUE(state, keys[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
 		@Override
 		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -841,6 +1011,19 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			return EMPTY_KEY_VALUE;
 		}
 		
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			int index = firstIndex;
+			int result = 0;
+			while(index != -1){
+				if(filter.TEST_VALUE(keys[index])) result++;
+				index = (int)links[index];
+			}
+			return result;
+		}
+		
 		@Override
 		public COMPARATOR KEY_GENERIC_TYPE comparator() { return null; }
 		
@@ -897,12 +1080,12 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 		}
 		
 		@Override
-		public <E> void forEach(E input, VALUE_BI_OBJECT_CONSUMER VVS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			if(size() <= 0) return;
 			int index = firstIndex;
 			while(index != -1){
-				action.accept(values[index], input);
+				action.accept(input, values[index]);
 				index = (int)links[index];
 			}
 		}
@@ -943,6 +1126,52 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			return true;
 		}
 		
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.APPLY_VALUE(state, values[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			VALUE_SPECIAL_TYPE state = identity;
+			int index = firstIndex;
+			while(index != -1) {
+				state = operator.apply(state, values[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = EMPTY_VALUE;
+			boolean empty = true;
+			int index = firstIndex;
+			while(index != -1) {
+				if(empty) {
+					empty = false;
+					state = values[index];
+					index = (int)links[index];
+					continue;
+				}
+				state = operator.APPLY_VALUE(state, values[index]);
+				index = (int)links[index];
+			}
+			return state;
+		}
+		
 		@Override
 		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -954,6 +1183,19 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			}
 			return EMPTY_VALUE;
 		}
+		
+		@Override
+		public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			if(size() <= 0) return 0;
+			int result = 0;
+			int index = firstIndex;
+			while(index != -1){
+				if(filter.VALUE_TEST_VALUE(values[index])) result++;
+				index = (int)links[index];
+			}
+			return result;
+		}
 	}
 	
 	private class FastEntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {

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

@@ -6,14 +6,13 @@ import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Objects;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 
 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
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
-#if !TYPE_OBJECT && !VALUE_OBJECT
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
 #endif
 #if !TYPE_OBJECT && !VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
@@ -21,6 +20,9 @@ import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+#if !SAME_TYPE
+import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
+#endif
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.maps.abstracts.ABSTRACT_MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
@@ -32,6 +34,7 @@ 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;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_SUPPLIER;
 #if !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
 #if !VALUE_OBJECT
@@ -48,13 +51,20 @@ import speiger.src.collections.objects.functions.function.Object2BooleanFunction
 #endif
 #endif
 #if !SAME_TYPE
-import speiger.src.collections.VALUE_PACKAGE.functions.consumer.VALUE_BI_OBJECT_CONSUMER;
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
+
+#endif
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
 #endif
 #if !VALUE_OBJECT
 import speiger.src.collections.objects.collections.ObjectIterator;
 #endif
 #if !TYPE_OBJECT
+#if !VALUE_OBJECT
+import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOperator;
+
+#endif
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 import speiger.src.collections.objects.lists.ObjectListIterator;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
@@ -128,11 +138,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	public ARRAY_MAP(CLASS_TYPE[] keys, CLASS_VALUE_TYPE[] values, int length) {
 		this(length);
 		if(keys.length != values.length) throw new IllegalStateException("Input Arrays are not equal size");
-		size = length;
+		putAll(keys, values, 0, length);
-		for(int i = 0,m=length;i<m;i++) {
-			this.keys[i] = OBJ_TO_KEY(keys[i]);
-			this.values[i] = OBJ_TO_VALUE(values[i]);
-		}
 	}
 	
 #endif
@@ -154,10 +160,9 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	 * @throws IllegalStateException if the keys and values do not match in lenght
 	 */
 	public ARRAY_MAP(KEY_TYPE[] keys, VALUE_TYPE[] values, int length) {
+		this(length);
 		if(keys.length != values.length) throw new IllegalStateException("Input Arrays are not equal size");
-		this.keys = Arrays.copyOf(keys, length);
+		putAll(keys, values, 0, length);
-		this.values = Arrays.copyOf(values, length);
-		this.size = length;
 	}
 	
 	/**
@@ -197,9 +202,12 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	@Override
 	public VALUE_TYPE putIfAbsent(KEY_TYPE key, VALUE_TYPE value) {
 		int index = findIndex(key);
-		if(index >= 0) insertIndex(size++, key, value);
+		if(index < 0) {
+			insertIndex(size++, key, value);
 			return getDefaultReturnValue();
 		}
+		return values[index];
+	}
 	
 #if VALUE_PRIMITIVES
 	@Override
@@ -458,6 +466,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	
 	@Override
 	public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
 		int index = findIndex(key);
 		if(index == -1) {
 			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
@@ -476,6 +485,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	
 	@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 == -1) {
 			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
@@ -483,13 +493,39 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			insertIndex(size++, key, newValue);
 			return newValue;
 		}
-		return values[index];
+		VALUE_TYPE newValue = values[index];
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = mappingFunction.GET_VALUE(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		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 == -1) {
+			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			insertIndex(size++, key, newValue);
+			return newValue;
+		}
+		VALUE_TYPE newValue = values[index];
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = valueProvider.VALUE_GET_KEY();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		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(index == -1) return getDefaultReturnValue();
+		if(index == -1 || VALUE_EQUALS(values[index], getDefaultReturnValue())) return getDefaultReturnValue();
 		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 			removeIndex(index);
@@ -501,8 +537,12 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if VALUE_OBJECT
+		Objects.requireNonNull(value);
+#endif
 		int index = findIndex(key);
-		VALUE_TYPE newValue = index == -1 ? value : mappingFunction.APPLY_VALUE(values[index], value);
+		VALUE_TYPE newValue = index == -1 || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? value : mappingFunction.APPLY_VALUE(values[index], value);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 			if(index >= 0)
 				removeIndex(index);
@@ -518,7 +558,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
 			KEY_TYPE key = entry.ENTRY_KEY();
 			int index = findIndex(key);
-			VALUE_TYPE newValue = index == -1 ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
+			VALUE_TYPE newValue = index == -1 || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 				if(index >= 0)
 					removeIndex(index);
@@ -540,6 +580,14 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		size = 0;
 	}
 	
+	public ARRAY_MAP KEY_VALUE_GENERIC_TYPE copy() {
+		ARRAY_MAP KEY_VALUE_GENERIC_TYPE map = new ARRAY_MAPKV_BRACES();
+		map.size = size;
+		map.keys = Arrays.copyOf(keys, keys.length);
+		map.values = Arrays.copyOf(values, keys.length);
+		return map;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() {
 		return null;
@@ -658,21 +706,18 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	
 #endif
 	protected int findIndex(Object key, Object value) {
-		if(key == null || value == null) return -1;
 		for(int i = size-1;i>=0;i--)
 			if(EQUALS_KEY_TYPE(keys[i], key) && EQUALS_VALUE_TYPE(values[i], value)) return i;
 		return -1;		
 	}
 	
 	protected int findIndex(Object key) {
-		if(key == null) return -1;
 		for(int i = size-1;i>=0;i--)
 			if(EQUALS_KEY_TYPE(keys[i], key)) return i;
 		return -1;
 	}
 	
 	protected int findValue(Object value) {
-		if(value == null) return -1;
 		for(int i = size-1;i>=0;i--)
 			if(EQUALS_VALUE_TYPE(values[i], value)) return i;
 		return -1;
@@ -967,6 +1012,11 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			return entrySet;
 		}
 		
+		@Override
+		public SubMap copy() { 
+			throw new UnsupportedOperationException(); 
+		}
+		
 		@Override
 		public COMPARATOR KEY_GENERIC_TYPE comparator() {
 			return null;
@@ -1039,21 +1089,18 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		
 #endif
 		protected int findIndex(Object key, Object value) {
-			if(key == null || value == null) return -1;
 			for(int i = length-1;i>=0;i--)
 				if(EQUALS_KEY_TYPE(keys[offset+i], key) && EQUALS_VALUE_TYPE(values[offset+i], value)) return i+offset;
 			return -1;		
 		}
 		
 		protected int findIndex(Object key) {
-			if(key == null) return -1;
 			for(int i = length-1;i>=0;i--)
 				if(EQUALS_KEY_TYPE(keys[offset+i], key)) return i+offset;
 			return -1;
 		}
 		
 		protected int findValue(Object value) {
-			if(value == null) return -1;
 			for(int i = length-1;i>=0;i--)
 				if(EQUALS_VALUE_TYPE(values[offset+i], value)) return i+offset;
 			return -1;
@@ -1119,6 +1166,9 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 				return new SubFastEntryIterator(fromElement);
 			}
 			
+			@Override
+			public SubMapEntrySet copy() { throw new UnsupportedOperationException(); }
+			
 			@Override
 			public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 				Objects.requireNonNull(action);
@@ -1138,10 +1188,10 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			}
 			
 			@Override
-			public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+			public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 				Objects.requireNonNull(action);
 				for(int i = 0;i<length;i++)
-					action.accept(new BasicEntryKV_BRACES(keys[offset+i], values[offset+i]), input);
+					action.accept(input, new BasicEntryKV_BRACES(keys[offset+i], values[offset+i]));
 			}
 			
 			@Override
@@ -1180,6 +1230,32 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 				return true;
 			}
 			
+			@Override
+			public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
+				Objects.requireNonNull(operator);
+				E state = identity;
+				for(int i = 0;i<length;i++) {
+					state = operator.apply(state, new BasicEntryKV_BRACES(keys[offset+i], values[offset+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) {
+				Objects.requireNonNull(operator);
+				MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+				boolean empty = true;
+				for(int i = 0;i<length;i++) {
+					if(empty) {
+						empty = false;
+						state = new BasicEntryKV_BRACES(keys[offset+i], values[offset+i]);
+						continue;
+					}
+					state = operator.apply(state, new BasicEntryKV_BRACES(keys[offset+i], values[offset+i]));
+				}
+				return state;
+			}
+			
 			@Override
 			public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 				Objects.requireNonNull(filter);
@@ -1192,12 +1268,31 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 				return null;
 			}
 			
+			@Override
+			public int count(Object2BooleanFunction<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();
+				for(int i = 0;i<length;i++) {
+					entry.set(keys[offset+i], values[offset+i]);
+					if(filter.getBoolean(entry)) result++;
+				}
+				return result;
+			}
+			
 			@Override
 			@Deprecated
 			public boolean contains(Object o) {
 				if(o instanceof Map.Entry) {
-					if(o instanceof MAP.Entry) return SubMap.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+					if(o instanceof MAP.Entry) {
-					return SubMap.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+						MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+						return SubMap.this.findIndex(entry.ENTRY_KEY(), entry.ENTRY_VALUE()) >= 0;
+					}
+					else {
+						Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+						return ARRAY_MAP.this.findIndex(entry.getKey(), entry.getValue()) >= 0;
+					}
 				}
 				return false;
 			}
@@ -1246,7 +1341,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			@Override
 			public boolean remove(Object o) {
 				int oldSize = length;
-				remove(o);
+				SubMap.this.remove(o);
 				return length != oldSize;
 			}
 			
@@ -1257,7 +1352,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			@Override
 			public boolean remove(KEY_TYPE o) {
 				int oldSize = length;
-				remove(o);
+				SubMap.this.remove(o);
 				return length != oldSize;
 			}
 			
@@ -1289,6 +1384,9 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			@Override
 			public KEY_TYPE POLL_LAST_KEY() { return POLL_LAST_ENTRY_KEY(); }
 			
+			@Override
+			public SubKeySet copy() { throw new UnsupportedOperationException(); }
+			
 			@Override
 			public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) { 
 				Objects.requireNonNull(action);
@@ -1296,10 +1394,10 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			}
 			
 			@Override
-			public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+			public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 				Objects.requireNonNull(action);
 				if(size() <= 0) return;
-				for(int i = 0;i<length;action.accept(keys[offset+i], input)); 
+				for(int i = 0;i<length;action.accept(input, keys[offset+i])); 
 
 			}
 			
@@ -1333,6 +1431,45 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 				return true;
 			}
 			
+#if !TYPE_OBJECT
+			@Override
+			public KEY_TYPE reduce(KEY_TYPE identity, SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+				Objects.requireNonNull(operator);
+				KEY_TYPE state = identity;
+				for(int i = 0;i<length;i++) {
+					state = operator.APPLY_KEY_VALUE(state, keys[i+offset]);
+				}
+				return state;
+			}
+			
+#else
+			@Override
+			public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+				Objects.requireNonNull(operator);
+				KEY_SPECIAL_TYPE state = identity;
+				for(int i = 0;i<length;i++) {
+					state = operator.apply(state, keys[i+offset]);
+				}
+				return state;
+			}
+			
+#endif
+			@Override
+			public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+				Objects.requireNonNull(operator);
+				KEY_TYPE state = EMPTY_KEY_VALUE;
+				boolean empty = true;
+				for(int i = 0;i<length;i++) {
+					if(empty) {
+						empty = false;
+						state = keys[i+offset];
+						continue;
+					}
+					state = operator.APPLY_KEY_VALUE(state, keys[i+offset]);
+				}
+				return state;
+			}
+			
 			@Override
 			public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 				Objects.requireNonNull(filter);
@@ -1343,6 +1480,17 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 				return EMPTY_KEY_VALUE;
 			}
 			
+			@Override
+			public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+				Objects.requireNonNull(filter);
+				if(size() <= 0) return 0;
+				int result = 0;
+				for(int i = 0;i<length;i++) {
+					if(filter.TEST_VALUE(keys[i+offset])) result++;					
+				}
+				return result;
+			}
+			
 			@Override
 			public COMPARATOR KEY_GENERIC_TYPE comparator() { return null; }
 			@Override
@@ -1394,9 +1542,9 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			}
 			
 			@Override
-			public <E> void forEach(E input, VALUE_BI_OBJECT_CONSUMER VVS_GENERIC_TYPE<E> action) {
+			public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 				Objects.requireNonNull(action);
-				for(int i = 0;i<length;action.accept(values[offset+i], input));
+				for(int i = 0;i<length;action.accept(input, values[offset+i]));
 
 			}
 			
@@ -1427,6 +1575,45 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 				return true;
 			}
 			
+#if !VALUE_OBJECT
+			@Override
+			public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+				Objects.requireNonNull(operator);
+				VALUE_TYPE state = identity;
+				for(int i = 0;i<length;i++) {
+					state = operator.APPLY_VALUE(state, values[offset+i]);
+				}
+				return state;
+			}
+			
+#else
+			@Override
+			public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+				Objects.requireNonNull(operator);
+				VALUE_SPECIAL_TYPE state = identity;
+				for(int i = 0;i<length;i++) {
+					state = operator.apply(state, values[offset+i]);
+				}
+				return state;
+			}
+			
+#endif
+			@Override
+			public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+				Objects.requireNonNull(operator);
+				VALUE_TYPE state = EMPTY_VALUE;
+				boolean empty = true;
+				for(int i = 0;i<length;i++) {
+					if(empty) {
+						empty = false;
+						state = values[offset+i];
+						continue;
+					}
+					state = operator.APPLY_VALUE(state, values[offset+i]);
+				}
+				return state;
+			}
+			
 			@Override
 			public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 				Objects.requireNonNull(filter);
@@ -1435,6 +1622,16 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 				}
 				return EMPTY_VALUE;
 			}
+			
+			@Override
+			public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+				Objects.requireNonNull(filter);
+				int result = 0;
+				for(int i = 0;i<length;i++) {
+					if(filter.VALUE_TEST_VALUE(values[offset+i])) result++;
+				}
+				return result;
+			}
 		}
 		
 		private class SubFastEntryIterator extends SubMapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
@@ -1563,12 +1760,14 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			}
 			
 			public int previousEntry() {
+				if(!hasPrevious()) throw new NoSuchElementException();
 				int returnIndex = offset+index;
 				lastReturned = index--;
 				return returnIndex;
 			}
 			
 			public int nextEntry() {
+				if(!hasNext()) throw new NoSuchElementException();
 				int returnIndex = offset+index;
 				lastReturned = index++;
 				return returnIndex;
@@ -1650,6 +1849,9 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			return new FastEntryIterator(fromElement);
 		}
 		
+		@Override
+		public MapEntrySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
@@ -1669,10 +1871,10 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		}
 		
 		@Override
-		public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
 			for(int i = 0;i<size;i++) {
-				action.accept(new BasicEntryKV_BRACES(keys[i], values[i]), input);
+				action.accept(input, new BasicEntryKV_BRACES(keys[i], values[i]));
 			}
 		}
 		
@@ -1712,6 +1914,32 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			return true;
 		}
 		
+		@Override
+		public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
+			Objects.requireNonNull(operator);
+			E state = identity;
+			for(int i = 0;i<size;i++) {
+				state = operator.apply(state, new BasicEntryKV_BRACES(keys[i], values[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) {
+			Objects.requireNonNull(operator);
+			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+			boolean empty = true;
+			for(int i = 0;i<size;i++) {
+				if(empty) {
+					empty = false;
+					state = new BasicEntryKV_BRACES(keys[i], values[i]);
+					continue;
+				}
+				state = operator.apply(state, new BasicEntryKV_BRACES(keys[i], values[i]));
+			}
+			return state;
+		}
+		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
@@ -1724,12 +1952,33 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			return null;
 		}
 		
+		@Override
+		public int count(Object2BooleanFunction<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();
+			for(int i = 0;i<size;i++) {
+				entry.set(keys[i], values[i]);
+				if(filter.getBoolean(entry)) result++;
+			}
+			return result;
+		}
+		
 		@Override
 		@Deprecated
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return ARRAY_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return ARRAY_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					int index = ARRAY_MAP.this.findIndex(entry.ENTRY_KEY());
+					if(index >= 0) return VALUE_EQUALS(entry.ENTRY_VALUE(), ARRAY_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					int index = ARRAY_MAP.this.findIndex(entry.getKey());
+					if(index >= 0) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(ARRAY_MAP.this.values[index]));
+				}
 			}
 			return false;
 		}
@@ -1778,7 +2027,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		@Override
 		public boolean remove(Object o) {
 			int oldSize = size;
-			remove(o);
+			ARRAY_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -1789,7 +2038,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		@Override
 		public boolean remove(KEY_TYPE o) {
 			int oldSize = size;
-			remove(o);
+			ARRAY_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -1821,6 +2070,9 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		@Override
 		public KEY_TYPE POLL_LAST_KEY() { return POLL_LAST_ENTRY_KEY(); }
 		
+		@Override
+		public KeySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) { 
 			Objects.requireNonNull(action);
@@ -1828,9 +2080,9 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		}
 		
 		@Override
-		public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
-			for(int i = 0;i<size;action.accept(keys[i++], input)); 
+			for(int i = 0;i<size;action.accept(input, keys[i++])); 
 
 		}
 		
@@ -1862,6 +2114,45 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			return true;
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = identity;
+			for(int i = 0;i<size;i++) {
+				state = operator.APPLY_KEY_VALUE(state, keys[i]);
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			KEY_SPECIAL_TYPE state = identity;
+			for(int i = 0;i<size;i++) {
+				state = operator.apply(state, keys[i]);
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = EMPTY_KEY_VALUE;
+			boolean empty = true;
+			for(int i = 0;i<size;i++) {
+				if(empty) {
+					empty = false;
+					state = keys[i];
+					continue;
+				}
+				state = operator.APPLY_KEY_VALUE(state, keys[i]);
+			}
+			return state;
+		}
+		
 		@Override
 		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -1871,6 +2162,16 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			return EMPTY_KEY_VALUE;
 		}
 		
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			int result = 0;
+			for(int i = 0;i<size;i++) {
+				if(filter.TEST_VALUE(keys[i])) result++;
+			}
+			return result;
+		}
+		
 		@Override
 		public COMPARATOR KEY_GENERIC_TYPE comparator() { return null; }
 		@Override
@@ -1948,6 +2249,45 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			return true;
 		}
 		
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = identity;
+			for(int i = 0;i<size;i++) {
+				state = operator.APPLY_VALUE(state, values[i]);
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			VALUE_SPECIAL_TYPE state = identity;
+			for(int i = 0;i<size;i++) {
+				state = operator.apply(state, values[i]);
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = EMPTY_VALUE;
+			boolean empty = true;
+			for(int i = 0;i<size;i++) {
+				if(empty) {
+					empty = false;
+					state = values[i];
+					continue;
+				}
+				state = operator.APPLY_VALUE(state, values[i]);
+			}
+			return state;
+		}
+		
 		@Override
 		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -1956,6 +2296,16 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			}
 			return EMPTY_VALUE;
 		}
+		
+		@Override
+		public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			int result = 0;
+			for(int i = 0;i<size;i++) {
+				if(filter.VALUE_TEST_VALUE(values[i])) result++;
+			}
+			return result;
+		}
 	}
 	
 	private class FastEntryIterator extends MapIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
@@ -2084,11 +2434,13 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		}
 		
 		public int previousEntry() {
+			if(!hasPrevious()) throw new NoSuchElementException();
 			lastReturned = index;
 			return index--;
 		}
 		
 		public int nextEntry() {
+			if(!hasNext()) throw new NoSuchElementException();
 			lastReturned = index;
 			return index++;
 		}
@@ -2163,7 +2515,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "->" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
 		}
 	}
 }

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

@@ -3,9 +3,7 @@ package speiger.src.collections.PACKAGE.maps.impl.misc;
 import java.util.Arrays;
 import java.util.Map;
 import java.util.NoSuchElementException;
-#if VALUE_OBJECT
 import java.util.Objects;
-#endif
 
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ABSTRACT_COLLECTION;
 import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
@@ -13,6 +11,14 @@ import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_ITERATOR;
 #if !VALUE_OBJECT
 import speiger.src.collections.objects.collections.ObjectIterator;
 #endif
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_SUPPLIER;
+import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
+import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
+#if !VALUE_OBJECT
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+#endif
+import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
+import speiger.src.collections.PACKAGE.utils.maps.MAPS;
 import speiger.src.collections.objects.maps.abstracts.ABSTRACT_MAP;
 import speiger.src.collections.objects.maps.interfaces.MAP;
 import speiger.src.collections.objects.sets.AbstractObjectSet;
@@ -28,13 +34,13 @@ import speiger.src.collections.objects.sets.ObjectSet;
 public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENERIC_TYPE
 {
 	/** Enum Type that is being used */
-	protected final Class<T> keyType;
+	protected Class<T> keyType;
 	/** The Backing keys array. */
-	protected transient final T[] keys;
+	protected transient T[] keys;
 	/** The Backing values array */
-	protected transient final VALUE_TYPE[] values;
+	protected transient VALUE_TYPE[] values;
 	/** The Backing array that indicates which index is present or not */
-	protected transient final long[] present;
+	protected transient long[] present;
 	/** Amount of Elements stored in the ArrayMap */
 	protected int size = 0;
 	/** EntrySet cache */
@@ -44,6 +50,9 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	/** Values cache */
 	protected transient VALUE_COLLECTION VALUE_GENERIC_TYPE valuesC;
 	
+	protected ENUM_MAP() {
+		
+	}
 	/**
 	 * Default Constructor
 	 * @param keyType the type of Enum that should be used
@@ -55,6 +64,86 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		present = new long[((keys.length - 1) >> 6) + 1];
 	}
 	
+#if !VALUE_OBJECT
+	/**
+	 * Helper constructor that allow to create a EnumMap from boxed values (it will unbox them)
+	 * @param keys the keys that should be put into the EnumMap
+	 * @param values the values that should be put into the EnumMap.
+	 * @throws IllegalStateException if the keys and values do not match in lenght
+	 */
+	public ENUM_MAP(T[] keys, CLASS_VALUE_TYPE[] values) {
+		if(keys.length <= 0) throw new IllegalArgumentException("Empty Array are not allowed");
+		if(keys.length != values.length) throw new IllegalArgumentException("Keys and Values have to be the same size");
+		keyType = keys[0].getDeclaringClass();
+		this.keys = getKeyUniverse(keyType);
+		this.values = NEW_VALUE_ARRAY(keys.length);
+		present = new long[((keys.length - 1) >> 6) + 1];
+		putAll(keys, values);
+	}
+	
+#endif
+	/**
+	 * Helper constructor that allow to create a EnumMap from unboxed values
+	 * @param keys the keys that should be put into the map
+	 * @param values the values that should be put into the map.
+	 * @throws IllegalStateException if the keys and values do not match in lenght
+	 */
+	public ENUM_MAP(T[] keys, VALUE_TYPE[] values) {
+		if(keys.length <= 0) throw new IllegalArgumentException("Empty Array are not allowed");
+		if(keys.length != values.length) throw new IllegalArgumentException("Keys and Values have to be the same size");
+		keyType = keys[0].getDeclaringClass();
+		this.keys = getKeyUniverse(keyType);
+		this.values = NEW_VALUE_ARRAY(keys.length);
+		present = new long[((keys.length - 1) >> 6) + 1];
+		putAll(keys, values);		
+	}
+	
+	/**
+	 * A Helper constructor that allows to create a EnumMap with exactly the same values as the provided map.
+	 * @param map the values that should be present in the map
+	 */
+	public ENUM_MAP(Map<? extends CLASS_TYPE, ? extends CLASS_VALUE_TYPE> map) {
+		if(map instanceof ENUM_MAP) {
+			ENUM_MAP KEY_VALUE_GENERIC_TYPE enumMap = (ENUM_MAP KEY_VALUE_GENERIC_TYPE)map;
+			keyType = enumMap.keyType;
+			keys = enumMap.keys;
+			values = enumMap.values.clone();
+			present = enumMap.present.clone();
+			size = enumMap.size;
+		}
+		else if(map.isEmpty()) throw new IllegalArgumentException("Empty Maps are not allowed");
+		else {
+			keyType = map.keySet().iterator().next().getDeclaringClass();
+			this.keys = getKeyUniverse(keyType);
+			this.values = NEW_VALUE_ARRAY(keys.length);
+			present = new long[((keys.length - 1) >> 6) + 1];
+			putAll(map);
+		}
+	}
+	
+	/**
+	 * A Type Specific Helper function that allows to create a new EnumMap with exactly the same values as the provided map.
+	 * @param map the values that should be present in the map
+ 	 */
+	public ENUM_MAP(MAP KEY_VALUE_GENERIC_TYPE map) {
+		if(map instanceof ENUM_MAP) {
+			ENUM_MAP KEY_VALUE_GENERIC_TYPE enumMap = (ENUM_MAP KEY_VALUE_GENERIC_TYPE)map;
+			keyType = enumMap.keyType;
+			keys = enumMap.keys;
+			values = enumMap.values.clone();
+			present = enumMap.present.clone();
+			size = enumMap.size;
+		}
+		else if(map.isEmpty()) throw new IllegalArgumentException("Empty Maps are not allowed");
+		else {
+			keyType = map.keySet().iterator().next().getDeclaringClass();
+			this.keys = getKeyUniverse(keyType);
+			this.values = NEW_VALUE_ARRAY(keys.length);
+			present = new long[((keys.length - 1) >> 6) + 1];
+			putAll(map);
+		}
+	}
+	
 	@Override
 	public VALUE_TYPE put(T key, VALUE_TYPE value) {
 		int index = key.ordinal();
@@ -94,6 +183,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 #endif
 	@Override
 	public boolean containsKey(Object key) {
+		if(!keyType.isInstance(key)) return false;
 		return isSet(((T)key).ordinal());
 	}
 	
@@ -101,7 +191,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	@Override
 	public boolean containsValue(Object value) {
 		for(int i = 0;i<values.length;i++)
-			if(VALUE_EQUALS(value, values[i])) return true;
+			if(isSet(i) && VALUE_EQUALS(value, values[i])) return true;
 		return false;
 	}
 	
@@ -109,13 +199,25 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	@Override
 	public boolean containsValue(VALUE_TYPE value) {
 		for(int i = 0;i<values.length;i++)
-			if(VALUE_EQUALS(value, values[i])) return true;
+			if(isSet(i) && VALUE_EQUALS(value, values[i])) return true;
 		return false;
 	}
 	
 #endif
+	@Override
+	public CLASS_VALUE_TYPE remove(Object key) {
+		if(!keyType.isInstance(key)) return getDefaultReturnValue();
+		int index = ((T)key).ordinal();
+		if(!isSet(index)) return getDefaultReturnValue();
+		clear(index);
+		VALUE_TYPE result = values[index];
+		values[index] = EMPTY_VALUE;
+		return result;
+	}
+	
 	@Override
 	public VALUE_TYPE rem(T key) {
+		if(!keyType.isInstance(key)) return getDefaultReturnValue();
 		int index = key.ordinal();
 		if(!isSet(index)) return getDefaultReturnValue();
 		clear(index);
@@ -157,6 +259,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 #endif
 	@Override
 	public VALUE_TYPE GET_VALUE(T key) {
+		if(!keyType.isInstance(key)) return getDefaultReturnValue();
 		int index = key.ordinal();
 		return isSet(index) ? values[index] : getDefaultReturnValue();
 	}
@@ -164,6 +267,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 #if VALUE_OBJECT
 	@Override
 	public VALUE_TYPE getOrDefault(Object key, VALUE_TYPE defaultValue) {
+		if(!keyType.isInstance(key)) return defaultValue;
 		int index = ((T)key).ordinal();
 		return isSet(index) ? values[index] : defaultValue;
 	}
@@ -171,11 +275,21 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 #else
 	@Override
 	public VALUE_TYPE getOrDefault(T key, VALUE_TYPE defaultValue) {
+		if(!keyType.isInstance(key)) return defaultValue;
 		int index = key.ordinal();
 		return isSet(index) ? values[index] : defaultValue;
 	}
 	
 #endif
+	@Override
+	public ENUM_MAP KEY_VALUE_GENERIC_TYPE copy() {
+		ENUM_MAP KEY_VALUE_GENERIC_TYPE map = new ENUM_MAPKV_BRACES(keyType);
+		map.size = size;
+		System.arraycopy(present, 0, map.present, 0, Math.min(present.length, map.present.length));
+		System.arraycopy(values, 0, map.values, 0, Math.min(values.length, map.values.length));
+		return map;
+	}
+	
 	@Override
 	public ObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() {
 		if(entrySet == null) entrySet = new EntrySet();
@@ -194,6 +308,145 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		return valuesC;
 	}
 	
+	@Override
+	public void forEach(BI_CONSUMER KEY_VALUE_GENERIC_TYPE action) {
+		if(size() <= 0) return;
+		for(int i = 0,m=keys.length;i<m;i++) {
+			if(isSet(i)) action.accept(keys[i], values[i]);
+		}
+	}
+	
+	@Override
+	public boolean replace(T key, VALUE_TYPE oldValue, VALUE_TYPE newValue) {
+		int index = key.ordinal();
+		if(!isSet(index) || values[index] != oldValue) return false;
+		values[index] = newValue;
+		return true;
+	}
+	
+	@Override
+	public VALUE_TYPE replace(T key, VALUE_TYPE value) {
+		int index = key.ordinal();
+		if(!isSet(index)) return getDefaultReturnValue();
+		VALUE_TYPE oldValue = values[index];
+		values[index] = value;
+		return oldValue;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE(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;
+			return newValue;
+		}
+		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			clear(index);
+			values[index] = EMPTY_VALUE;
+			return newValue;
+		}
+		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.GET_VALUE(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			set(index);
+			values[index] = newValue;			
+			return newValue;
+		}
+		VALUE_TYPE newValue = values[index];
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = mappingFunction.GET_VALUE(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		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_GET_KEY();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			set(index);
+			values[index] = newValue;			
+			return newValue;
+		}
+		VALUE_TYPE newValue = values[index];
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = valueProvider.VALUE_GET_KEY();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		return newValue;
+	}
+	
+	@Override
+	public VALUE_TYPE COMPUTE_IF_PRESENT(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]);
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			clear(index);
+			values[index] = EMPTY_VALUE;
+			return newValue;
+		}
+		values[index] = newValue;
+		return newValue;
+	}
+	
+	@Override
+	public VALUE_TYPE MERGE(T key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
+		int index = key.ordinal();
+#if VALUE_OBJECT
+		Objects.requireNonNull(value);
+#endif
+		VALUE_TYPE newValue = !isSet(index) || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? value : mappingFunction.APPLY_VALUE(values[index], value);
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			if(isSet(index)) {
+				clear(index);
+				values[index] = EMPTY_VALUE;
+			}
+		}
+		else if(!isSet(index)) {
+			set(index);
+			values[index] = newValue;
+		}
+		else values[index] = newValue;
+		return newValue;
+	}
+	
+	@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)) {
+			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());
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+				if(isSet(index)) {
+					clear(index);
+					values[index] = EMPTY_VALUE;
+				}
+			}
+			else if(!isSet(index)) {
+				set(index);
+				values[index] = newValue;
+			}
+			else values[index] = newValue;
+		}
+	}
+	
 	@Override
 	public void clear() {
 		if(size == 0) return;
@@ -202,6 +455,11 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		Arrays.fill(values, EMPTY_VALUE);
 	}
 	
+	@Override
+	public int size() {
+		return size;
+	}
+	
 	protected void onNodeAdded(int index) {
 		
 	}
@@ -211,16 +469,18 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	}
 	
 	protected void set(int index) {
-		present[index >> 6] |= (1L << index); 
 		onNodeAdded(index);
+		present[index >> 6] |= (1L << index); 
+		size++;
 	}
 	protected void clear(int index) { 
+		size--;
 		present[index >> 6] &= ~(1L << index);
 		onNodeRemoved(index);
 	}
 	protected boolean isSet(int index) { return (present[index >> 6] & (1L << index)) != 0; }
 	
-	private static <K extends Enum<K>> K[] getKeyUniverse(Class<K> keyType) {
+	protected static <K extends Enum<K>> K[] getKeyUniverse(Class<K> keyType) {
 		return keyType.getEnumConstants();
 	}
 	
@@ -228,7 +488,20 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		
 		@Override
 		public boolean contains(Object o) {
-			if(o instanceof Map.Entry) return containsKey(((Map.Entry<?, ?>)o).getKey());
+			if(o instanceof Map.Entry) {
+				if(o instanceof MAP.Entry) {
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					if(!keyType.isInstance(entry.ENTRY_KEY())) return false;
+					int index = ((T)entry.ENTRY_KEY()).ordinal();
+					if(index >= 0 && ENUM_MAP.this.isSet(index)) return VALUE_EQUALS(entry.ENTRY_VALUE(), ENUM_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					if(!keyType.isInstance(entry.getKey())) return false;
+					int index = ((T)entry.getKey()).ordinal();
+					if(index >= 0 && ENUM_MAP.this.isSet(index)) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(ENUM_MAP.this.values[index]));
+				}
+			}
 			return false;
 		}
 		
@@ -324,8 +597,7 @@ 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() {
-			int index = nextEntry();
+			return new MapEntry(nextEntry());
-			return new BasicEntry<>(keys[index], values[index]);
 		}
 	}
 	
@@ -360,13 +632,74 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		public int nextEntry() {
 			if(!hasNext()) throw new NoSuchElementException();
 			lastReturnValue = nextIndex;
-			return nextIndex;
+			nextIndex = -1;
+			return lastReturnValue;
 		}
 		
 		public void remove() {
 			if(lastReturnValue == -1) throw new IllegalStateException();
 			clear(lastReturnValue);
 			values[lastReturnValue] = EMPTY_VALUE;
+			lastReturnValue = -1;
+		}
+	}
+	
+	protected class MapEntry implements MAP.Entry KEY_VALUE_GENERIC_TYPE, Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE> {
+		public int index = -1;
+		
+		public MapEntry() {}
+		public MapEntry(int index) {
+			this.index = index;
+		}
+
+		@Override
+		public KEY_TYPE ENTRY_KEY() {
+			return keys[index];
+		}
+
+		@Override
+		public VALUE_TYPE ENTRY_VALUE() {
+			return values[index];
+		}
+
+		@Override
+		public VALUE_TYPE setValue(VALUE_TYPE value) {
+			VALUE_TYPE oldValue = values[index];
+			values[index] = value;
+			return oldValue;
+		}
+		
+		@Override
+		public boolean equals(Object obj) {
+			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());
+				}
+				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);
+#else if TYPE_OBJECT
+				return value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], 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);
+#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));
+#endif
+			}
+			return false;
+		}
+		
+		@Override
+		public int hashCode() {
+			return KEY_TO_HASH(keys[index]) ^ VALUE_TO_HASH(values[index]);
+		}
+		
+		@Override
+		public String toString() {
+			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
 		}
 	}
 }

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

@@ -59,6 +59,136 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		links = new long[keys.length];
 	}
 	
+#if !VALUE_OBJECT
+	/**
+	 * Helper constructor that allow to create a EnumMap from boxed values (it will unbox them)
+	 * @param keys the keys that should be put into the EnumMap
+	 * @param values the values that should be put into the EnumMap.
+	 * @throws IllegalStateException if the keys and values do not match in lenght
+	 */
+	public LINKED_ENUM_MAP(T[] keys, CLASS_VALUE_TYPE[] values) {
+		if(keys.length <= 0) throw new IllegalArgumentException("Empty Array are not allowed");
+		if(keys.length != values.length) throw new IllegalArgumentException("Keys and Values have to be the same size");
+		keyType = keys[0].getDeclaringClass();
+		this.keys = getKeyUniverse(keyType);
+		this.values = NEW_VALUE_ARRAY(keys.length);
+		present = new long[((keys.length - 1) >> 6) + 1];
+		links = new long[keys.length];
+		putAll(keys, values);
+	}
+	
+#endif
+	/**
+	 * Helper constructor that allow to create a EnumMap from unboxed values
+	 * @param keys the keys that should be put into the map
+	 * @param values the values that should be put into the map.
+	 * @throws IllegalStateException if the keys and values do not match in lenght
+	 */
+	public LINKED_ENUM_MAP(T[] keys, VALUE_TYPE[] values) {
+		if(keys.length <= 0) throw new IllegalArgumentException("Empty Array are not allowed");
+		if(keys.length != values.length) throw new IllegalArgumentException("Keys and Values have to be the same size");
+		keyType = keys[0].getDeclaringClass();
+		this.keys = getKeyUniverse(keyType);
+		this.values = NEW_VALUE_ARRAY(keys.length);
+		present = new long[((keys.length - 1) >> 6) + 1];
+		links = new long[keys.length];
+		putAll(keys, values);		
+	}
+	
+	/**
+	 * A Helper constructor that allows to create a EnumMap with exactly the same values as the provided map.
+	 * @param map the values that should be present in the map
+	 */
+	public LINKED_ENUM_MAP(Map<? extends CLASS_TYPE, ? extends CLASS_VALUE_TYPE> map) {
+		if(map instanceof LINKED_ENUM_MAP) {
+			LINKED_ENUM_MAP KEY_VALUE_GENERIC_TYPE enumMap = (LINKED_ENUM_MAP KEY_VALUE_GENERIC_TYPE)map;
+			keyType = enumMap.keyType;
+			keys = enumMap.keys;
+			values = enumMap.values.clone();
+			present = enumMap.present.clone();
+			links = enumMap.links.clone();
+			size = enumMap.size;
+		}
+		else if(map instanceof ENUM_MAP) {
+			ENUM_MAP KEY_VALUE_GENERIC_TYPE enumMap = (ENUM_MAP KEY_VALUE_GENERIC_TYPE)map;
+			keyType = enumMap.keyType;
+			keys = enumMap.keys;
+			values = enumMap.values.clone();
+			present = enumMap.present.clone();
+			links = new long[keys.length];
+			for(int i = 0,m=keys.length;i<m;i++) {
+				if(isSet(i)) {
+					if(size == 0) {
+						firstIndex = lastIndex = i;
+						links[i] = -1L;
+					}
+					else {
+						links[lastIndex] ^= ((links[lastIndex] ^ (i & 0xFFFFFFFFL)) & 0xFFFFFFFFL);
+						links[i] = ((lastIndex & 0xFFFFFFFFL) << 32) | 0xFFFFFFFFL;
+						lastIndex = i;
+					}
+					size++;
+				}
+			}
+		}
+		else if(map.isEmpty()) throw new IllegalArgumentException("Empty Maps are not allowed");
+		else {
+			keyType = map.keySet().iterator().next().getDeclaringClass();
+			this.keys = getKeyUniverse(keyType);
+			this.values = NEW_VALUE_ARRAY(keys.length);
+			present = new long[((keys.length - 1) >> 6) + 1];
+			links = new long[keys.length];
+			putAll(map);
+		}
+	}
+	
+	/**
+	 * A Type Specific Helper function that allows to create a new EnumMap with exactly the same values as the provided map.
+	 * @param map the values that should be present in the map
+ 	 */
+	public LINKED_ENUM_MAP(MAP KEY_VALUE_GENERIC_TYPE map) {
+		if(map instanceof LINKED_ENUM_MAP) {
+			LINKED_ENUM_MAP KEY_VALUE_GENERIC_TYPE enumMap = (LINKED_ENUM_MAP KEY_VALUE_GENERIC_TYPE)map;
+			keyType = enumMap.keyType;
+			keys = enumMap.keys;
+			values = enumMap.values.clone();
+			present = enumMap.present.clone();
+			links = enumMap.links.clone();
+			size = enumMap.size;
+		}
+		else if(map instanceof ENUM_MAP) {
+			ENUM_MAP KEY_VALUE_GENERIC_TYPE enumMap = (ENUM_MAP KEY_VALUE_GENERIC_TYPE)map;
+			keyType = enumMap.keyType;
+			keys = enumMap.keys;
+			values = enumMap.values.clone();
+			present = enumMap.present.clone();
+			links = new long[keys.length];
+			for(int i = 0,m=keys.length;i<m;i++) {
+				if(isSet(i)) {
+					if(size == 0) {
+						firstIndex = lastIndex = i;
+						links[i] = -1L;
+					}
+					else {
+						links[lastIndex] ^= ((links[lastIndex] ^ (i & 0xFFFFFFFFL)) & 0xFFFFFFFFL);
+						links[i] = ((lastIndex & 0xFFFFFFFFL) << 32) | 0xFFFFFFFFL;
+						lastIndex = i;
+					}
+					size++;
+				}
+			}
+		}
+		else if(map.isEmpty()) throw new IllegalArgumentException("Empty Maps are not allowed");
+		else {
+			keyType = map.keySet().iterator().next().getDeclaringClass();
+			this.keys = getKeyUniverse(keyType);
+			this.values = NEW_VALUE_ARRAY(keys.length);
+			present = new long[((keys.length - 1) >> 6) + 1];
+			links = new long[keys.length];
+			putAll(map);
+		}
+	}
+	
 	@Override
 	public VALUE_TYPE putAndMoveToFirst(T key, VALUE_TYPE value) {
 		int index = key.ordinal();
@@ -127,6 +257,18 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		return values[index];
 	}
 	
+	@Override
+	public LINKED_ENUM_MAP KEY_VALUE_GENERIC_TYPE copy() {
+		LINKED_ENUM_MAP KEY_VALUE_GENERIC_TYPE map = new LINKED_ENUM_MAPKV_BRACES(keyType);
+		map.size = size;
+		System.arraycopy(present, 0, map.present, 0, Math.min(present.length, map.present.length));
+		System.arraycopy(values, 0, map.values, 0, Math.min(values.length, map.values.length));
+		System.arraycopy(links, 0, map.links, 0, Math.min(links.length, map.links.length));
+		map.firstIndex = firstIndex;
+		map.lastIndex = lastIndex;
+		return map;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() {
 		return null;
@@ -351,6 +493,8 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 			return new FastEntryIterator(fromElement);
 		}
 		
+		public MapEntrySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			int index = firstIndex;
@@ -375,8 +519,18 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		@Deprecated
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return LINKED_ENUM_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return LINKED_ENUM_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					if(!keyType.isInstance(entry.ENTRY_KEY())) return false;
+					int index = ((T)entry.ENTRY_KEY()).ordinal();
+					if(index >= 0 && LINKED_ENUM_MAP.this.isSet(index)) return VALUE_EQUALS(entry.ENTRY_VALUE(), LINKED_ENUM_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					if(!keyType.isInstance(entry.getKey())) return false;
+					int index = ((T)entry.getKey()).ordinal();
+					if(index >= 0 && LINKED_ENUM_MAP.this.isSet(index)) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(LINKED_ENUM_MAP.this.values[index]));
+				}
 			}
 			return false;
 		}
@@ -428,7 +582,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		@Override
 		public boolean remove(Object o) {
 			int oldSize = size;
-			remove(o);
+			LINKED_ENUM_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -441,7 +595,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		@Override
 		public boolean remove(T o) {
 			int oldSize = size;
-			remove(o);
+			LINKED_ENUM_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -477,6 +631,8 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 			return new KeyIterator(fromElement);
 		}
 		
+		public KeySet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public int size() {
 			return LINKED_ENUM_MAP.this.size();
@@ -741,6 +897,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 				previous = (int)(links[current] >>> 32);
 			}
 			else next = (int)links[current];
+			
 			size--;
 			if(previous == -1) firstIndex = next;
 			else links[previous] ^= ((links[previous] ^ (next & 0xFFFFFFFFL)) & 0xFFFFFFFFL);
@@ -748,6 +905,8 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 			if (next == -1) lastIndex = previous;
 			else links[next] ^= ((links[next] ^ ((previous & 0xFFFFFFFFL) << 32)) & 0xFFFFFFFF00000000L);
 			values[current] = EMPTY_VALUE;
+			present[current >> 6] &= ~(1L << current);
+			current = -1;
 		}
 		
 		public int previousEntry() {
@@ -839,7 +998,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "->" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
 		}
 	}
 }

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

@@ -5,6 +5,7 @@ import java.util.Map;
 import java.util.Comparator;
 #endif
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 import java.util.Objects;
 import java.util.NoSuchElementException;
 
@@ -12,9 +13,7 @@ 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
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
-#if !TYPE_OBJECT && !VALUE_OBJECT
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
 #endif
 #if !TYPE_OBJECT && !VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
@@ -22,6 +21,9 @@ import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+#if !SAME_TYPE
+import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
+#endif
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.maps.abstracts.ABSTRACT_MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
@@ -35,6 +37,7 @@ 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;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_SUPPLIER;
 #if !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
 import speiger.src.collections.VALUE_PACKAGE.lists.VALUE_LIST_ITERATOR;
@@ -52,7 +55,10 @@ import speiger.src.collections.objects.functions.function.Object2BooleanFunction
 #endif
 #endif
 #if !SAME_TYPE
-import speiger.src.collections.VALUE_PACKAGE.functions.consumer.VALUE_BI_OBJECT_CONSUMER;
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
+
+#endif
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
 #endif
 #if !TYPE_OBJECT && !VALUE_OBJECT
@@ -63,6 +69,10 @@ import speiger.src.collections.objects.utils.ObjectIterators;
 import speiger.src.collections.objects.collections.ObjectIterator;
 #endif
 #if !TYPE_OBJECT
+#if !VALUE_OBJECT
+import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOperator;
+
+#endif
 import speiger.src.collections.objects.sets.AbstractObjectSet;
 import speiger.src.collections.objects.sets.ObjectSet;
 #endif
@@ -223,6 +233,9 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 #endif
 	@Override
 	public VALUE_TYPE put(KEY_TYPE key, VALUE_TYPE value) {
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
 			size++;
@@ -257,6 +270,9 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	
 	@Override
 	public VALUE_TYPE putIfAbsent(KEY_TYPE key, VALUE_TYPE value) {
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
 			size++;
@@ -292,6 +308,9 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 #if VALUE_PRIMITIVES
 	@Override
 	public VALUE_TYPE addTo(KEY_TYPE key, VALUE_TYPE value) {
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
 			size++;
@@ -500,6 +519,10 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	
 	@Override
 	public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
 			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
@@ -518,6 +541,10 @@ 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) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
 			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
@@ -525,13 +552,43 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			put(key, newValue);
 			return newValue;
 		}
+		if(VALUE_EQUALS(entry.value, getDefaultReturnValue())) {
+			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			entry.value = newValue;
+		}
+		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
+		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
+		if(entry == null) {
+			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			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();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			entry.value = newValue;
+		}
 		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
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
-		if(entry == null) return getDefaultReturnValue();
+		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);
@@ -543,8 +600,12 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
-		VALUE_TYPE newValue = entry == null ? value : mappingFunction.APPLY_VALUE(entry.value, value);
+		VALUE_TYPE newValue = entry == null || VALUE_EQUALS(entry.value, getDefaultReturnValue()) ? value : mappingFunction.APPLY_VALUE(entry.value, value);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 			if(entry != null)
 				removeNode(entry);
@@ -560,7 +621,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
 			KEY_TYPE key = entry.ENTRY_KEY();
 			Entry KEY_VALUE_GENERIC_TYPE subEntry = findNode(key);
-			VALUE_TYPE newValue = subEntry == null ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(subEntry.value, entry.ENTRY_VALUE());
+			VALUE_TYPE newValue = subEntry == null || VALUE_EQUALS(subEntry.value, getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(subEntry.value, entry.ENTRY_VALUE());
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 				if(subEntry != null)
 					removeNode(subEntry);
@@ -596,6 +657,21 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		return new KeyIterator(findNode(key));
 	}
 	
+	public AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE copy() {
+		AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE set = new AVL_TREE_MAPKV_BRACES();
+		set.size = size;
+		if(tree != null) {
+			set.tree = tree.copy();
+			Entry KEY_VALUE_GENERIC_TYPE lastFound = null;
+			for(Entry KEY_VALUE_GENERIC_TYPE entry = tree;entry != null;entry = entry.left) lastFound = entry;
+			set.first = lastFound;
+			lastFound = null;
+			for(Entry KEY_VALUE_GENERIC_TYPE entry = tree;entry != null;entry = entry.right) lastFound = entry;
+			set.last = lastFound;
+		}
+		return set;
+	}
+	
 	@Override
 	public SORTED_SET KEY_GENERIC_TYPE keySet() {
 		return navigableKeySet();
@@ -823,6 +899,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		}
 	}
 	
+	protected void validate(KEY_TYPE k) { compare(k, k); }
 	protected int compare(KEY_TYPE k, KEY_TYPE v) { return comparator != null ? comparator.compare(k, v) : COMPAREABLE_TO_KEY(k, v);}
 	
 	/** From CLR */
@@ -1119,7 +1196,8 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		abstract AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE next(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry);
 		abstract AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE previous(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry);
 		
-		
+		@Override
+		public NavigableSubMap KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 		@Override
 		public abstract NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE descendingMap();
 		@Override
@@ -1453,8 +1531,21 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			@Deprecated
 			public boolean contains(Object o) {
 				if(o instanceof Map.Entry) {
-					if(o instanceof MAP.Entry) return NavigableSubMap.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+					if(o instanceof MAP.Entry) {
-					return NavigableSubMap.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+						MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+						if(entry.getKey() == null && comparator() == null) return false;
+						AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = m.findNode(entry.ENTRY_KEY());
+						if(subEntry != null) return VALUE_EQUALS(entry.ENTRY_VALUE(), subEntry.value);
+					}
+					else {
+						Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+						if(entry.getKey() == null && comparator() == null) return false;
+#if !TYPE_OBJECT
+						if(!(entry.getKey() instanceof CLASS_TYPE)) return false;
+#endif
+						AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = m.findNode((CLASS_TYPE)entry.getKey());
+						if(subEntry != null) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(subEntry.value));
+					}
 				}
 				return false;
 			}
@@ -1487,10 +1578,10 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			}
 			
 			@Override
-			public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+			public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 				Objects.requireNonNull(action);
 				for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					action.accept(new BasicEntryKV_BRACES(entry.key, entry.value), input);
+					action.accept(input, new BasicEntryKV_BRACES(entry.key, entry.value));
 			}
 			
 			@Override
@@ -1529,6 +1620,32 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				return true;
 			}
 			
+			@Override
+			public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
+				Objects.requireNonNull(operator);
+				E state = identity;
+				for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
+					state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
+				}
+				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) {
+				Objects.requireNonNull(operator);
+				MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+				boolean empty = true;
+				for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
+					if(empty) {
+						empty = false;
+						state = new BasicEntryKV_BRACES(entry.key, entry.value);
+						continue;
+					}
+					state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
+				}
+				return state;
+			}
+			
 			@Override
 			public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 				Objects.requireNonNull(filter);
@@ -1540,6 +1657,19 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				}
 				return null;
 			}
+			
+			@Override
+			public int count(Object2BooleanFunction<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(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
+					subEntry.set(entry.key, entry.value);
+					if(filter.getBoolean(subEntry)) result++;
+				}
+				return result;
+			}
 		}
 		
 		final class SubMapValues extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE {
@@ -1580,10 +1710,10 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			}
 			
 			@Override
-			public <E> void forEach(E input, VALUE_BI_OBJECT_CONSUMER VVS_GENERIC_TYPE<E> action) {
+			public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 				Objects.requireNonNull(action);
 				for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					action.accept(entry.value, input);
+					action.accept(input, entry.value);
 			}
 			
 			@Override
@@ -1610,6 +1740,43 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				return true;
 			}
 			
+#if !VALUE_OBJECT
+			@Override
+			public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+				Objects.requireNonNull(operator);
+				VALUE_TYPE state = identity;
+				for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
+					state = operator.APPLY_VALUE(state, entry.value);
+				return state;
+			}
+			
+#else
+			@Override
+			public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+				Objects.requireNonNull(operator);
+				VALUE_SPECIAL_TYPE state = identity;
+				for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
+					state = operator.apply(state, entry.value);
+				return state;
+			}
+			
+#endif
+			@Override
+			public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+				Objects.requireNonNull(operator);
+				VALUE_TYPE state = EMPTY_VALUE;
+				boolean empty = true;
+				for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
+					if(empty) {
+						empty = false;
+						state = entry.value;
+						continue;
+					}
+					state = operator.APPLY_VALUE(state, entry.value);
+				}
+				return state;
+			}
+			
 			@Override
 			public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 				Objects.requireNonNull(filter);
@@ -1617,6 +1784,15 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 					if(filter.VALUE_TEST_VALUE(entry.value)) return entry.value;
 				return EMPTY_VALUE;
 			}
+			
+			@Override
+			public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+				Objects.requireNonNull(filter);
+				int result = 0;
+				for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
+					if(filter.VALUE_TEST_VALUE(entry.value)) result++;
+				return result;
+			}
 		}
 		
 		final class SubMapEntrySetIterator extends SubMapEntryIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
@@ -1761,8 +1937,21 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		@Deprecated
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return AVL_TREE_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return AVL_TREE_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					if(entry.getKey() == null && comparator() == null) return false;
+					AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = AVL_TREE_MAP.this.findNode(entry.ENTRY_KEY());
+					if(subEntry != null) return VALUE_EQUALS(entry.ENTRY_VALUE(), subEntry.value);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					if(entry.getKey() == null && comparator() == null) return false;
+#if !TYPE_OBJECT
+					if(!(entry.getKey() instanceof CLASS_TYPE)) return false;
+#endif
+					AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = AVL_TREE_MAP.this.findNode((CLASS_TYPE)entry.getKey());
+					if(subEntry != null) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(subEntry.value));
+				}
 			}
 			return false;
 		}
@@ -1799,10 +1988,10 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		}
 		
 		@Override
-		public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
 			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				action.accept(new BasicEntryKV_BRACES(entry.key, entry.value), input);
+				action.accept(input, new BasicEntryKV_BRACES(entry.key, entry.value));
 		}
 		
 		@Override
@@ -1841,6 +2030,32 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			return true;
 		}
 		
+		@Override
+		public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
+			Objects.requireNonNull(operator);
+			E state = identity;
+			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+				state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
+			}
+			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) {
+			Objects.requireNonNull(operator);
+			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+			boolean empty = true;
+			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+				if(empty) {
+					empty = false;
+					state = new BasicEntryKV_BRACES(entry.key, entry.value);
+					continue;
+				}
+				state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
+			}
+			return state;
+		}
+		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
@@ -1916,6 +2131,9 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		}
 		
 #endif
+		@Override
+		public KeySet KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, boolean fromInclusive, KEY_TYPE toElement, boolean toInclusive) {
 			return new KeySetKV_BRACES(m.subMap(fromElement, fromInclusive, toElement, toInclusive));
@@ -1992,10 +2210,10 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		}
 		
 		@Override
-		public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				action.accept(entry.key, input);
+				action.accept(input, entry.key);
 		}
 		
 		@Override
@@ -2022,6 +2240,43 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			return true;
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = identity;
+			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
+				state = operator.APPLY_KEY_VALUE(state, entry.key);
+			return state;
+		}
+		
+#else
+		@Override
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			KEY_SPECIAL_TYPE state = identity;
+			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
+				state = operator.apply(state, entry.key);
+			return state;
+		}
+		
+#endif
+		@Override
+		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = EMPTY_KEY_VALUE;
+			boolean empty = true;
+			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry)) {
+				if(empty) {
+					empty = false;
+					state = entry.key;
+					continue;
+				}
+				state = operator.APPLY_KEY_VALUE(state, entry.key);
+			}
+			return state;
+		}
+		
 		@Override
 		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -2029,6 +2284,15 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				if(filter.TEST_VALUE(entry.key)) return entry.key;
 			return EMPTY_KEY_VALUE;
 		}
+		
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			int result = 0;
+			for(AVL_TREE_MAP.Entry 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++;
+			return result;
+		}
 	}
 	
 	final class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE {
@@ -2070,10 +2334,10 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		}
 		
 		@Override
-		public <E> void forEach(E input, VALUE_BI_OBJECT_CONSUMER VVS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				action.accept(entry.value, input);
+				action.accept(input, entry.value);
 		}
 		
 		@Override
@@ -2100,6 +2364,43 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			return true;
 		}
 		
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = identity;
+			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+				state = operator.APPLY_VALUE(state, entry.value);
+			return state;
+		}
+		
+#else
+		@Override
+		public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			VALUE_SPECIAL_TYPE state = identity;
+			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+				state = operator.apply(state, entry.value);
+			return state;
+		}
+		
+#endif
+		@Override
+		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = EMPTY_VALUE;
+			boolean empty = true;
+			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+				if(empty) {
+					empty = false;
+					state = entry.value;
+					continue;
+				}
+				state = operator.APPLY_VALUE(state, entry.value);
+			}
+			return state;
+		}
+		
 		@Override
 		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -2107,6 +2408,15 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				if(filter.VALUE_TEST_VALUE(entry.value)) return entry.value;
 			return EMPTY_VALUE;
 		}
+		
+		@Override
+		public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			int result = 0;
+			for(AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+				if(filter.VALUE_TEST_VALUE(entry.value)) result++;
+			return result;
+		}
 	}
 	
 	final class EntryIterator extends MapEntryIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
@@ -2266,6 +2576,22 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			this.parent = parent;
 		}
 		
+		Entry KEY_VALUE_GENERIC_TYPE copy() {
+			Entry KEY_VALUE_GENERIC_TYPE entry = new EntryKV_BRACES(key, value, null);
+			entry.state = state;
+			if(left != null) {
+				Entry KEY_VALUE_GENERIC_TYPE newLeft = left.copy();
+				entry.left = newLeft;
+				newLeft.parent = entry;
+			}
+			if(right != null) {
+				Entry KEY_VALUE_GENERIC_TYPE newRight = right.copy();
+				entry.right = newRight;
+				newRight.parent = entry;
+			}
+			return entry;
+		}
+		
 		@Override
 		public KEY_TYPE ENTRY_KEY() {
 			return key;
@@ -2291,6 +2617,43 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		}
 		
 #endif
+		@Override
+		public boolean equals(Object obj) {
+			if(obj instanceof Map.Entry) {
+				if(obj instanceof MAP.Entry) {
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)obj;
+#if TYPE_OBJECT
+					if(entry.ENTRY_KEY() == null) return false;
+#endif
+					return KEY_EQUALS(key, entry.ENTRY_KEY()) && VALUE_EQUALS(value, entry.ENTRY_VALUE());
+				}
+				Map.Entry<?, ?> entry = (Map.Entry<?, ?>)obj;
+				Object otherKey = entry.getKey();
+				if(otherKey == null) return false;
+				Object otherValue = entry.getValue();
+#if TYPE_OBJECT && VALUE_OBJECT
+				return KEY_EQUALS(key, otherKey) && VALUE_EQUALS(value, otherValue);
+#else if TYPE_OBJECT
+				return otherValue instanceof CLASS_VALUE_TYPE && KEY_EQUALS(key, otherKey) && VALUE_EQUALS(value, CLASS_TO_VALUE(otherValue));
+#else if VALUE_OBJECT
+				return otherKey instanceof CLASS_TYPE && KEY_EQUALS(key, CLASS_TO_KEY(otherKey)) && VALUE_EQUALS(value, otherValue);
+#else
+				return otherKey instanceof CLASS_TYPE && otherValue instanceof CLASS_VALUE_TYPE && KEY_EQUALS(key, CLASS_TO_KEY(otherKey)) && VALUE_EQUALS(value, CLASS_TO_VALUE(otherValue));
+#endif
+			}
+			return false;
+		}
+		
+		@Override
+		public int hashCode() {
+			return KEY_TO_HASH(key) ^ VALUE_TO_HASH(value);
+		}
+		
+		@Override
+		public String toString() {
+			return KEY_TO_STRING(key) + "=" + VALUE_TO_STRING(value);
+		}
+		
 		int getHeight() { return state; }
 		
 		void updateHeight() { state = (1 + Math.max(left == null ? -1 : left.getHeight(), right == null ? -1 : right.getHeight())); }

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

@@ -7,14 +7,13 @@ import java.util.Comparator;
 import java.util.Objects;
 import java.util.NoSuchElementException;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 
 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
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
-#if !TYPE_OBJECT && !VALUE_OBJECT
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
 #endif
 #if !TYPE_OBJECT && !VALUE_BOOLEAN
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
@@ -22,6 +21,9 @@ import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
 import speiger.src.collections.PACKAGE.functions.consumer.BI_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.FUNCTION;
 import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+#if !SAME_TYPE
+import speiger.src.collections.PACKAGE.functions.function.SINGLE_UNARY_OPERATOR;
+#endif
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.maps.abstracts.ABSTRACT_MAP;
 import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
@@ -35,6 +37,7 @@ 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;
+import speiger.src.collections.VALUE_PACKAGE.functions.VALUE_SUPPLIER;
 #if !SAME_TYPE
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_UNARY_OPERATOR;
 import speiger.src.collections.VALUE_PACKAGE.lists.VALUE_LIST_ITERATOR;
@@ -52,7 +55,10 @@ import speiger.src.collections.objects.functions.function.Object2BooleanFunction
 #endif
 #endif
 #if !SAME_TYPE
-import speiger.src.collections.VALUE_PACKAGE.functions.consumer.VALUE_BI_OBJECT_CONSUMER;
+#if !TYPE_OBJECT
+import speiger.src.collections.objects.functions.consumer.VALUE_BI_FROM_OBJECT_CONSUMER;
+
+#endif
 import speiger.src.collections.VALUE_PACKAGE.functions.function.VALUE_PREDICATE;
 #endif
 #if !TYPE_OBJECT && !VALUE_OBJECT
@@ -63,6 +69,10 @@ import speiger.src.collections.objects.utils.ObjectIterators;
 import speiger.src.collections.objects.collections.ObjectIterator;
 #endif
 #if !TYPE_OBJECT
+#if !VALUE_OBJECT
+import speiger.src.collections.objects.functions.function.ObjectObjectUnaryOperator;
+
+#endif
 import speiger.src.collections.objects.sets.AbstractObjectSet;
 import speiger.src.collections.objects.sets.ObjectSet;
 #endif
@@ -223,6 +233,9 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 #endif
 	@Override
 	public VALUE_TYPE put(KEY_TYPE key, VALUE_TYPE value) {
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
 			size++;
@@ -257,6 +270,10 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	
 	@Override
 	public VALUE_TYPE putIfAbsent(KEY_TYPE key, VALUE_TYPE value) {
+#if TYPE_OBJECT
+		validate(key);
+#endif
+
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
 			size++;
@@ -292,6 +309,9 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 #if VALUE_PRIMITIVES
 	@Override
 	public VALUE_TYPE addTo(KEY_TYPE key, VALUE_TYPE value) {
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
 			size++;
@@ -499,6 +519,10 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	
 	@Override
 	public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
 			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
@@ -517,6 +541,10 @@ 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) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
 			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
@@ -524,13 +552,43 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			put(key, newValue);
 			return newValue;
 		}
+		if(VALUE_EQUALS(entry.value, getDefaultReturnValue())) {
+			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			entry.value = newValue;
+		}
+		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
+		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
+		if(entry == null) {
+			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
+			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();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			entry.value = newValue;
+		}
 		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
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
-		if(entry == null) return getDefaultReturnValue();
+		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);
@@ -542,8 +600,12 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if TYPE_OBJECT
+		validate(key);
+#endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
-		VALUE_TYPE newValue = entry == null ? value : mappingFunction.APPLY_VALUE(entry.value, value);
+		VALUE_TYPE newValue = entry == null || VALUE_EQUALS(entry.value, getDefaultReturnValue()) ? value : mappingFunction.APPLY_VALUE(entry.value, value);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 			if(entry != null)
 				removeNode(entry);
@@ -559,7 +621,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
 			KEY_TYPE key = entry.ENTRY_KEY();
 			Entry KEY_VALUE_GENERIC_TYPE subEntry = findNode(key);
-			VALUE_TYPE newValue = subEntry == null ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(subEntry.value, entry.ENTRY_VALUE());
+			VALUE_TYPE newValue = subEntry == null || VALUE_EQUALS(subEntry.value, getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(subEntry.value, entry.ENTRY_VALUE());
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 				if(subEntry != null)
 					removeNode(subEntry);
@@ -595,6 +657,21 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		return new KeyIterator(findNode(key));
 	}
 	
+	public RB_TREE_MAP KEY_VALUE_GENERIC_TYPE copy() {
+		RB_TREE_MAP KEY_VALUE_GENERIC_TYPE set = new RB_TREE_MAPKV_BRACES();
+		set.size = size;
+		if(tree != null) {
+			set.tree = tree.copy();
+			Entry KEY_VALUE_GENERIC_TYPE lastFound = null;
+			for(Entry KEY_VALUE_GENERIC_TYPE entry = tree;entry != null;entry = entry.left) lastFound = entry;
+			set.first = lastFound;
+			lastFound = null;
+			for(Entry KEY_VALUE_GENERIC_TYPE entry = tree;entry != null;entry = entry.right) lastFound = entry;
+			set.last = lastFound;
+		}
+		return set;
+	}
+	
 	@Override
 	public SORTED_SET KEY_GENERIC_TYPE keySet() {
 		return navigableKeySet();
@@ -828,6 +905,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		}
 	}
 	
+	protected void validate(KEY_TYPE k) { compare(k, k); }
 	protected int compare(KEY_TYPE k, KEY_TYPE v) { return comparator != null ? comparator.compare(k, v) : COMPAREABLE_TO_KEY(k, v);}
 	protected static GENERIC_KEY_VALUE_BRACES boolean isBlack(Entry KEY_VALUE_GENERIC_TYPE p) { return p == null || p.isBlack(); }
 	protected static GENERIC_KEY_VALUE_BRACES Entry KEY_VALUE_GENERIC_TYPE parentOf(Entry KEY_VALUE_GENERIC_TYPE p) { return (p == null ? null : p.parent); }
@@ -1173,6 +1251,8 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		abstract RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE next(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry);
 		abstract RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE previous(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry);
 		
+		@Override
+		public NavigableSubMap KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 		@Override
 		public abstract NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE descendingMap();
 		@Override
@@ -1506,8 +1586,21 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			@Deprecated
 			public boolean contains(Object o) {
 				if(o instanceof Map.Entry) {
-					if(o instanceof MAP.Entry) return NavigableSubMap.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+					if(o instanceof MAP.Entry) {
-					return NavigableSubMap.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+						MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+						if(entry.getKey() == null && comparator() == null) return false;
+						RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = m.findNode(entry.ENTRY_KEY());
+						if(subEntry != null) return VALUE_EQUALS(entry.ENTRY_VALUE(), subEntry.value);
+					}
+					else {
+						Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+						if(entry.getKey() == null && comparator() == null) return false;
+#if !TYPE_OBJECT
+						if(!(entry.getKey() instanceof CLASS_TYPE)) return false;
+#endif
+						RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = m.findNode((CLASS_TYPE)entry.getKey());
+						if(subEntry != null) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(subEntry.value));
+					}
 				}
 				return false;
 			}
@@ -1540,10 +1633,10 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			}
 			
 			@Override
-			public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+			public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 				Objects.requireNonNull(action);
 				for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					action.accept(new BasicEntryKV_BRACES(entry.key, entry.value), input);
+					action.accept(input, new BasicEntryKV_BRACES(entry.key, entry.value));
 			}
 			
 			@Override
@@ -1582,6 +1675,32 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				return true;
 			}
 			
+			@Override
+			public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
+				Objects.requireNonNull(operator);
+				E state = identity;
+				for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
+					state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
+				}
+				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) {
+				Objects.requireNonNull(operator);
+				MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+				boolean empty = true;
+				for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
+					if(empty) {
+						empty = false;
+						state = new BasicEntryKV_BRACES(entry.key, entry.value);
+						continue;
+					}
+					state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
+				}
+				return state;
+			}
+			
 			@Override
 			public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 				Objects.requireNonNull(filter);
@@ -1593,6 +1712,19 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				}
 				return null;
 			}
+			
+			@Override
+			public int count(Object2BooleanFunction<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(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
+					subEntry.set(entry.key, entry.value);
+					if(filter.getBoolean(subEntry)) result++;
+				}
+				return result;
+			}
 		}
 		
 		final class SubMapValues extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE {
@@ -1633,10 +1765,10 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			}
 			
 			@Override
-			public <E> void forEach(E input, VALUE_BI_OBJECT_CONSUMER VVS_GENERIC_TYPE<E> action) {
+			public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 				Objects.requireNonNull(action);
 				for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
-					action.accept(entry.value, input);
+					action.accept(input, entry.value);
 			}
 			
 			@Override
@@ -1663,6 +1795,43 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				return true;
 			}
 			
+#if !VALUE_OBJECT
+			@Override
+			public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+				Objects.requireNonNull(operator);
+				VALUE_TYPE state = identity;
+				for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
+					state = operator.APPLY_VALUE(state, entry.value);
+				return state;
+			}
+			
+#else
+			@Override
+			public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+				Objects.requireNonNull(operator);
+				VALUE_SPECIAL_TYPE state = identity;
+				for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
+					state = operator.apply(state, entry.value);
+				return state;
+			}
+			
+#endif
+			@Override
+			public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+				Objects.requireNonNull(operator);
+				VALUE_TYPE state = EMPTY_VALUE;
+				boolean empty = true;
+				for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry)) {
+					if(empty) {
+						empty = false;
+						state = entry.value;
+						continue;
+					}
+					state = operator.APPLY_VALUE(state, entry.value);
+				}
+				return state;
+			}
+			
 			@Override
 			public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 				Objects.requireNonNull(filter);
@@ -1670,6 +1839,15 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 					if(filter.VALUE_TEST_VALUE(entry.value)) return entry.value;
 				return EMPTY_VALUE;
 			}
+			
+			@Override
+			public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+				Objects.requireNonNull(filter);
+				int result = 0;
+				for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = findLowest(), last = findHighest();entry != null && (last == null || last != previous(entry));entry = next(entry))
+					if(filter.VALUE_TEST_VALUE(entry.value)) result++;
+				return result;
+			}
 		}
 		
 		final class SubMapEntrySetIterator extends SubMapEntryIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
@@ -1814,8 +1992,21 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		@Deprecated
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return RB_TREE_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return RB_TREE_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					if(entry.getKey() == null && comparator() == null) return false;
+					RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = RB_TREE_MAP.this.findNode(entry.ENTRY_KEY());
+					if(subEntry != null) return VALUE_EQUALS(entry.ENTRY_VALUE(), subEntry.value);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					if(entry.getKey() == null && comparator() == null) return false;
+#if !TYPE_OBJECT
+					if(!(entry.getKey() instanceof CLASS_TYPE)) return false;
+#endif
+					RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = RB_TREE_MAP.this.findNode((CLASS_TYPE)entry.getKey());
+					if(subEntry != null) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(subEntry.value));
+				}
 			}
 			return false;
 		}
@@ -1852,10 +2043,10 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		}
 		
 		@Override
-		public <E> void forEach(E input, ObjectObjectConsumer<MAP.Entry KEY_VALUE_GENERIC_TYPE, E> action) {
+		public <E> void forEach(E input, ObjectObjectConsumer<E, MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
 			Objects.requireNonNull(action);
 			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				action.accept(new BasicEntryKV_BRACES(entry.key, entry.value), input);
+				action.accept(input, new BasicEntryKV_BRACES(entry.key, entry.value));
 		}
 		
 		@Override
@@ -1894,6 +2085,32 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			return true;
 		}
 		
+		@Override
+		public <E> E reduce(E identity, BiFunction<E, MAP.Entry KEY_VALUE_GENERIC_TYPE, E> operator) {
+			Objects.requireNonNull(operator);
+			E state = identity;
+			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+				state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
+			}
+			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) {
+			Objects.requireNonNull(operator);
+			MAP.Entry KEY_VALUE_GENERIC_TYPE state = null;
+			boolean empty = true;
+			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+				if(empty) {
+					empty = false;
+					state = new BasicEntryKV_BRACES(entry.key, entry.value);
+					continue;
+				}
+				state = operator.apply(state, new BasicEntryKV_BRACES(entry.key, entry.value));
+			}
+			return state;
+		}
+		
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE findFirst(Object2BooleanFunction<MAP.Entry KEY_VALUE_GENERIC_TYPE> filter) {
 			Objects.requireNonNull(filter);
@@ -1905,6 +2122,19 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			}
 			return null;
 		}
+		
+		@Override
+		public int count(Object2BooleanFunction<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(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+				subEntry.set(entry.key, entry.value);
+				if(filter.getBoolean(subEntry)) result++;
+			}
+			return result;
+		}
 	}
 	
 	static final class KeySet KEY_VALUE_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE implements NAVIGABLE_SET KEY_GENERIC_TYPE {
@@ -1969,6 +2199,9 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		}
 		
 #endif
+		@Override
+		public KeySet KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, boolean fromInclusive, KEY_TYPE toElement, boolean toInclusive) {
 			return new KeySetKV_BRACES(m.subMap(fromElement, fromInclusive, toElement, toInclusive));
@@ -2045,10 +2278,10 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		}
 		
 		@Override
-		public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
-				action.accept(entry.key, input);
+				action.accept(input, entry.key);
 		}
 		
 		@Override
@@ -2075,6 +2308,43 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			return true;
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = identity;
+			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
+				state = operator.APPLY_KEY_VALUE(state, entry.key);
+			return state;
+		}
+		
+#else
+		@Override
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			KEY_SPECIAL_TYPE state = identity;
+			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry))
+				state = operator.apply(state, entry.key);
+			return state;
+		}
+		
+#endif
+		@Override
+		public KEY_TYPE reduce(SINGLE_UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = EMPTY_KEY_VALUE;
+			boolean empty = true;
+			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = start(), end = end();entry != null && (end == null || (end != previous(entry)));entry = next(entry)) {
+				if(empty) {
+					empty = false;
+					state = entry.key;
+					continue;
+				}
+				state = operator.APPLY_KEY_VALUE(state, entry.key);
+			}
+			return state;
+		}
+		
 		@Override
 		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -2082,6 +2352,15 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				if(filter.TEST_VALUE(entry.key)) return entry.key;
 			return EMPTY_KEY_VALUE;
 		}
+		
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			int result = 0;
+			for(RB_TREE_MAP.Entry 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++;
+			return result;
+		}
 	}
 	
 	final class Values extends VALUE_ABSTRACT_COLLECTION VALUE_GENERIC_TYPE {
@@ -2123,10 +2402,10 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		}
 		
 		@Override
-		public <E> void forEach(E input, VALUE_BI_OBJECT_CONSUMER VVS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, VALUE_BI_FROM_OBJECT_CONSUMER VSV_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-				action.accept(entry.value, input);
+				action.accept(input, entry.value);
 		}
 		
 		@Override
@@ -2153,6 +2432,43 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			return true;
 		}
 		
+#if !VALUE_OBJECT
+		@Override
+		public VALUE_TYPE reduce(VALUE_TYPE identity, VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = identity;
+			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+				state = operator.APPLY_VALUE(state, entry.value);
+			return state;
+		}
+		
+#else
+		@Override
+		public <VALUE_SPECIAL_TYPE> VALUE_SPECIAL_TYPE reduce(VALUE_SPECIAL_TYPE identity, BiFunction<VALUE_SPECIAL_TYPE, VALUE_TYPE, VALUE_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			VALUE_SPECIAL_TYPE state = identity;
+			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+				state = operator.apply(state, entry.value);
+			return state;
+		}
+		
+#endif
+		@Override
+		public VALUE_TYPE reduce(VALUE_SINGLE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			VALUE_TYPE state = EMPTY_VALUE;
+			boolean empty = true;
+			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+				if(empty) {
+					empty = false;
+					state = entry.value;
+					continue;
+				}
+				state = operator.APPLY_VALUE(state, entry.value);
+			}
+			return state;
+		}
+		
 		@Override
 		public VALUE_TYPE findFirst(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -2160,6 +2476,15 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				if(filter.VALUE_TEST_VALUE(entry.value)) return entry.value;
 			return EMPTY_VALUE;
 		}
+		
+		@Override
+		public int count(VALUE_PREDICATE VALUE_GENERIC_TYPE filter) {
+			Objects.requireNonNull(filter);
+			int result = 0;
+			for(RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
+				if(filter.VALUE_TEST_VALUE(entry.value)) result++;
+			return result;
+		}
 	}
 	
 	final class EntryIterator extends MapEntryIterator implements ObjectListIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
@@ -2321,6 +2646,22 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			this.parent = parent;
 		}
 		
+		Entry KEY_VALUE_GENERIC_TYPE copy() {
+			Entry KEY_VALUE_GENERIC_TYPE entry = new EntryKV_BRACES(key, value, null);
+			entry.state = state;
+			if(left != null) {
+				Entry KEY_VALUE_GENERIC_TYPE newLeft = left.copy();
+				entry.left = newLeft;
+				newLeft.parent = entry;
+			}
+			if(right != null) {
+				Entry KEY_VALUE_GENERIC_TYPE newRight = right.copy();
+				entry.right = newRight;
+				newRight.parent = entry;
+			}
+			return entry;
+		}
+		
 		@Override
 		public KEY_TYPE ENTRY_KEY() {
 			return key;
@@ -2346,6 +2687,43 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		}
 		
 #endif
+		@Override
+		public boolean equals(Object obj) {
+			if(obj instanceof Map.Entry) {
+				if(obj instanceof MAP.Entry) {
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)obj;
+#if TYPE_OBJECT
+					if(entry.ENTRY_KEY() == null) return false;
+#endif
+					return KEY_EQUALS(key, entry.ENTRY_KEY()) && VALUE_EQUALS(value, entry.ENTRY_VALUE());
+				}
+				Map.Entry<?, ?> entry = (Map.Entry<?, ?>)obj;
+				Object otherKey = entry.getKey();
+				if(otherKey == null) return false;
+				Object otherValue = entry.getValue();
+#if TYPE_OBJECT && VALUE_OBJECT
+				return KEY_EQUALS(key, otherKey) && VALUE_EQUALS(value, otherValue);
+#else if TYPE_OBJECT
+				return otherValue instanceof CLASS_VALUE_TYPE && KEY_EQUALS(key, otherKey) && VALUE_EQUALS(value, CLASS_TO_VALUE(otherValue));
+#else if VALUE_OBJECT
+				return otherKey instanceof CLASS_TYPE && KEY_EQUALS(key, CLASS_TO_KEY(otherKey)) && VALUE_EQUALS(value, otherValue);
+#else
+				return otherKey instanceof CLASS_TYPE && otherValue instanceof CLASS_VALUE_TYPE && KEY_EQUALS(key, CLASS_TO_KEY(otherKey)) && VALUE_EQUALS(value, CLASS_TO_VALUE(otherValue));
+#endif
+			}
+			return false;
+		}
+		
+		@Override
+		public int hashCode() {
+			return KEY_TO_HASH(key) ^ VALUE_TO_HASH(value);
+		}
+		
+		@Override
+		public String toString() {
+			return KEY_TO_STRING(key) + "=" + VALUE_TO_STRING(value);
+		}
+		
 		boolean isBlack() {
 			return (state & BLACK) != 0;
 		}

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

@@ -2,6 +2,7 @@ package speiger.src.collections.PACKAGE.maps.interfaces;
 
 import java.util.NavigableMap;
 import speiger.src.collections.PACKAGE.sets.NAVIGABLE_SET;
+import speiger.src.collections.PACKAGE.utils.maps.MAPS;
 
 /**
  * A Type Specific Navigable Map interface with a couple helper methods
@@ -10,6 +11,8 @@ import speiger.src.collections.PACKAGE.sets.NAVIGABLE_SET;
  */
 public interface NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE extends SORTED_MAP KEY_VALUE_GENERIC_TYPE, NavigableMap<CLASS_TYPE, CLASS_VALUE_TYPE>
 {
+	@Override
+	public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE copy();
 	/** @return a Type Specific desendingMap */
 	@Override
 	public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE descendingMap();
@@ -32,6 +35,28 @@ public interface NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE extends SORTED_MAP KEY_VAL
 	@Override
 	public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry();
 	
+	/**
+	 * Creates a Wrapped NavigableMap that is Synchronized
+	 * @return a new NavigableMap that is synchronized
+	 * @see MAPS#synchronize
+	 */
+	public default NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE synchronize() { return MAPS.synchronize(this); }
+	
+	/**
+	 * Creates a Wrapped NavigableMap that is Synchronized
+	 * @param mutex is the controller of the synchronization block
+	 * @return a new NavigableMap Wrapper that is synchronized
+	 * @see MAPS#synchronize
+	 */
+	public default NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE synchronize(Object mutex) { return MAPS.synchronize(this, mutex); }
+	
+	/**
+	 * Creates a Wrapped NavigableMap that is unmodifiable
+	 * @return a new NavigableMap Wrapper that is unmodifiable
+	 * @see MAPS#unmodifiable
+	 */
+	public default NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE unmodifiable() { return MAPS.unmodifiable(this); }
+	
 #if !TYPE_OBJECT
 	/**
 	 * A Type Specific SubMap method to reduce boxing/unboxing

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

@@ -10,6 +10,7 @@ import speiger.src.collections.VALUE_PACKAGE.collections.VALUE_COLLECTION;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
 import speiger.src.collections.PACKAGE.sets.SET;
+import speiger.src.collections.PACKAGE.utils.maps.MAPS;
 import speiger.src.collections.objects.sets.ObjectSortedSet;
 import speiger.src.collections.objects.collections.ObjectBidirectionalIterator;
 
@@ -75,11 +76,36 @@ public interface SORTED_MAP KEY_VALUE_GENERIC_TYPE extends SortedMap<CLASS_TYPE,
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator();
 	
+	@Override
+	public SORTED_MAP KEY_VALUE_GENERIC_TYPE copy();
+	
 	@Override
 	public SET KEY_GENERIC_TYPE keySet();
 	@Override
 	public VALUE_COLLECTION VALUE_GENERIC_TYPE values();
 	
+	/**
+	 * Creates a Wrapped SortedMap that is Synchronized
+	 * @return a new SortedMap that is synchronized
+	 * @see MAPS#synchronize
+	 */
+	public default SORTED_MAP KEY_VALUE_GENERIC_TYPE synchronize() { return MAPS.synchronize(this); }
+	
+	/**
+	 * Creates a Wrapped SortedMap that is Synchronized
+	 * @param mutex is the controller of the synchronization block
+	 * @return a new SortedMap Wrapper that is synchronized
+	 * @see MAPS#synchronize
+	 */
+	public default SORTED_MAP KEY_VALUE_GENERIC_TYPE synchronize(Object mutex) { return MAPS.synchronize(this, mutex); }
+	
+	/**
+	 * Creates a Wrapped SortedMap that is unmodifiable
+	 * @return a new SortedMap Wrapper that is unmodifiable
+	 * @see MAPS#unmodifiable
+	 */
+	public default SORTED_MAP KEY_VALUE_GENERIC_TYPE unmodifiable() { return MAPS.unmodifiable(this); }
+	
 #if !TYPE_OBJECT
 	/**
 	 * A Type Specific SubMap method to reduce boxing/unboxing

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

@@ -0,0 +1,46 @@
+package speiger.src.collections.PACKAGE.queues;
+
+#if TYPE_OBJECT
+import java.util.Objects;
+#endif
+import java.util.StringJoiner;
+
+/**
+ * Helper class that implements all the essential methods for the PriorityQueues
+ * @Type(T)
+ */
+public abstract class ABSTRACT_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY_GENERIC_TYPE
+{
+	@Override
+	public boolean equals(Object obj) {
+		if(obj instanceof PRIORITY_QUEUE) {
+			PRIORITY_QUEUE KEY_GENERIC_TYPE queue = (PRIORITY_QUEUE KEY_GENERIC_TYPE)obj;
+			if(queue.size() != size()) return false;
+			for(int i = 0,m=size();i<m;i++) {
+				if(KEY_EQUALS_NOT(queue.peek(i), peek(i))) return false;
+			}
+			return true;
+		}
+		return false;
+	}
+	
+	@Override
+	public int hashCode() {
+        int result = 1;
+        for (int i = 0,m=size();i<m;i++) {
+            result = 31 * result + KEY_TO_HASH(peek(i));
+        }
+		return result;
+	}
+	
+	@Override
+	public String toString()
+	{
+		if(isEmpty()) return "[]";
+		StringJoiner joiner = new StringJoiner(", ", "[", "]");
+        for (int i = 0,m=size();i<m;i++) {
+        	joiner.add(KEY_TO_STRING(peek(i)));
+        }
+        return joiner.toString();
+	}
+}

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

@@ -1,9 +1,10 @@
 package speiger.src.collections.PACKAGE.queues;
 
-#if TYPE_OBJECT
 import java.util.Arrays;
+#if TYPE_OBJECT
 import java.util.Comparator;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
 import java.util.Objects;
 import java.util.NoSuchElementException;
@@ -13,8 +14,9 @@ import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.utils.ITrimmable;
 
 /**
@@ -22,7 +24,7 @@ import speiger.src.collections.utils.ITrimmable;
  * Its specific implementation uses a backing array that grows and shrinks as it is needed.
  * @Type(T)
  */
-public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_GENERIC_TYPE, ITrimmable
+public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_GENERIC_TYPE, ITrimmable
 {
 	/** Max Possible ArraySize without the JVM Crashing */
 	private static final int MAX_ARRAY_SIZE = Integer.MAX_VALUE - 8;
@@ -34,6 +36,8 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_G
 	protected int first;
 	/** The Last Index pointer */
 	protected int last;
+	/** The Minimum Capacity of the Queue **/
+	protected int minCapacity;
 	
 	/**
 	 * Constructor using a initial array
@@ -62,7 +66,9 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_G
 	 */
 	public ARRAY_FIFO_QUEUE(KEY_TYPE[] values, int offset, int size) {
 		if (values.length < size) throw new IllegalArgumentException("Initial array (" + values.length + ") is smaller then the expected size (" + size + ")");
-		if(values.length <= 0) values = NEW_KEY_ARRAY(1);
+		if(values.length <= 0) values = NEW_KEY_ARRAY(MIN_CAPACITY);
+		else if(values.length < MIN_CAPACITY) values = Arrays.copyOf(values, MIN_CAPACITY);
+		minCapacity = MIN_CAPACITY;
 		array = values;
 		first = offset;
 		last = (offset + size) % array.length;
@@ -76,7 +82,8 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_G
 	 */
 	public ARRAY_FIFO_QUEUE(int capacity) {
 		if (capacity < 0) throw new IllegalArgumentException("Initial capacity (" + capacity + ") is negative");
-		array = NEW_KEY_ARRAY(Math.max(1, capacity));
+		array = NEW_KEY_ARRAY(Math.max(MIN_CAPACITY, capacity));
+		minCapacity = array.length;
 	}
 	
 	/**
@@ -222,6 +229,16 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_G
 	@Override
 	public void onChanged() {}
 	
+	@Override
+	public ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE copy() {
+		ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE queue = new ARRAY_FIFO_QUEUEBRACES();
+		queue.first = first;
+		queue.last = last;
+		queue.minCapacity = minCapacity;
+		queue.array = Arrays.copyOf(array, array.length);
+		return queue;
+	}
+	
 	@Override
 	public COMPARATOR KEY_SUPER_GENERIC_TYPE comparator() { return null; }
 	
@@ -235,11 +252,11 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_G
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		if(first == last) return;
 		for(int i = 0,m=size();i<m;i++)
-			action.accept(array[(first + i) % array.length], input);
+			action.accept(input, array[(first + i) % array.length]);
 		clearAndTrim(0);	
 	}
 	
@@ -284,9 +301,58 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_G
 		return EMPTY_VALUE;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		for(int i = 0,m=size();i<m;i++) {
+			state = operator.APPLY_VALUE(state, array[(first + i) % array.length]);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		for(int i = 0,m=size();i<m;i++) {
+			state = operator.APPLY_VALUE(state, array[(first + i) % array.length]);
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		for(int i = 0,m=size();i<m;i++) {
+			if(empty) {
+				empty = false;
+				state = array[(first + i) % array.length];
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, array[(first + i) % array.length]);
+		}
+		return state;
+	}
+	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		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++;
+		}
+		return result;
+	}
+	
 	@Override
 	public boolean trim(int size) {
-		int newSize = Math.max(size, size());
+		int newSize = Math.max(Math.max(size, size()), minCapacity);
 		if(newSize >= array.length) return false;
 		KEY_TYPE[] newArray = NEW_KEY_ARRAY(newSize);
 		if(first <= last) System.arraycopy(array, first, newArray, 0, last - first);
@@ -307,7 +373,7 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_G
 	 */
 	@Override
 	public void clearAndTrim(int size) {
-		int newSize = Math.max(MIN_CAPACITY, size);
+		int newSize = Math.max(minCapacity, size);
 		if(array.length <= newSize) {
 			clear();
 			return;
@@ -329,7 +395,7 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_G
 	
 	protected void reduce() {
 		final int size = size();
-		if (array.length > MIN_CAPACITY && size <= array.length / 4) resize(size, array.length / 2);
+		if (array.length > minCapacity && size <= array.length / 4) resize(size, Math.max(array.length / 2, minCapacity));
 	}
 	
 	protected void expand() {

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

@@ -5,6 +5,7 @@ import java.util.NoSuchElementException;
 #if TYPE_OBJECT
 import java.util.Comparator;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
 import java.util.Objects;
 
@@ -14,8 +15,9 @@ import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
 
 /**
@@ -24,7 +26,7 @@ import speiger.src.collections.PACKAGE.utils.ARRAYS;
  * It is highly suggested to use HeapPriorityQueue otherwise, unless you know why you need this specific implementation
  * @Type(T)
  */
-public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY_GENERIC_TYPE
+public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE KEY_GENERIC_TYPE
 {
 	/** The Backing Array */
 	protected transient KEY_TYPE[] array = EMPTY_KEY_ARRAY;
@@ -262,9 +264,9 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
-		for(int i = 0,m=size;i<m;i++) action.accept(dequeue(), input);
+		for(int i = 0,m=size;i<m;i++) action.accept(input, dequeue());
 	}
 	
 	@Override
@@ -294,6 +296,45 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY
 		return true;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		for(int i = 0;i<size;i++) {
+			state = operator.APPLY_VALUE(state, array[i]);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		for(int i = 0;i<size;i++) {
+			state = operator.APPLY_VALUE(state, array[i]);
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		for(int i = 0;i<size;i++) {
+			if(empty) {
+				empty = false;
+				state = array[i];
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, array[i]);
+		}
+		return state;
+	}
+	
 	@Override
 	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
@@ -307,11 +348,31 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY
 		return EMPTY_VALUE;
 	}
 	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		int result = 0;
+		for(int i = 0;i<size;i++) {
+			if(filter.TEST_VALUE(array[i])) result++;
+		}
+		return result;
+	}
+	
 	@Override
 	public ITERATOR KEY_GENERIC_TYPE iterator() {
 		return new Iter();
 	}
 	
+	@Override
+	public ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE copy() {
+		ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE queue = new ARRAY_PRIORITY_QUEUEBRACES();
+		queue.firstIndex = firstIndex;
+		queue.size = size;
+		queue.comparator = comparator;
+		queue.array = Arrays.copyOf(array, array.length);
+		return queue;
+	}
+	
 	@Override
 	public COMPARATOR KEY_SUPER_GENERIC_TYPE comparator() {
 		return comparator;

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

@@ -5,6 +5,7 @@ import java.util.NoSuchElementException;
 #if TYPE_OBJECT
 import java.util.Comparator;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
 import java.util.Objects;
 
@@ -14,8 +15,9 @@ import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
 
 /**
@@ -23,7 +25,7 @@ import speiger.src.collections.PACKAGE.utils.ARRAYS;
  * It is a ArrayBased Alternative to TreeSets that has less object allocations
  * @Type(T)
  */
-public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY_GENERIC_TYPE
+public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE KEY_GENERIC_TYPE
 {
 	/** The Backing Array */
 	protected transient KEY_TYPE[] array = EMPTY_KEY_ARRAY;
@@ -249,9 +251,9 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY_
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
-		for(int i = 0,m=size;i<m;i++) action.accept(dequeue(), input);
+		for(int i = 0,m=size;i<m;i++) action.accept(input, dequeue());
 	}
 	
 	@Override
@@ -281,6 +283,45 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY_
 		return true;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		for(int i = 0;i<size;i++) {
+			state = operator.APPLY_VALUE(state, array[i]);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		for(int i = 0;i<size;i++) {
+			state = operator.APPLY_VALUE(state, array[i]);
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		for(int i = 0;i<size;i++) {
+			if(empty) {
+				empty = false;
+				state = array[i];
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, array[i]);
+		}
+		return state;
+	}
+	
 	@Override
 	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
@@ -294,6 +335,16 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY_
 		return EMPTY_VALUE;
 	}
 	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		int result = 0;
+		for(int i = 0;i<size;i++) {
+			if(filter.TEST_VALUE(array[i])) result++;
+		}
+		return result;
+	}
+	
 	protected boolean removeIndex(int index) {
 		array[index] = array[--size];
 #if TYPE_OBJECT
@@ -309,6 +360,15 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY_
 		ARRAYS.shiftDown(array, size, 0, comparator);
 	}
 	
+	@Override
+	public HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE copy() {
+		HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE queue = new HEAP_PRIORITY_QUEUEBRACES();
+		queue.size = size;
+		queue.comparator = comparator;
+		queue.array = Arrays.copyOf(array, array.length);
+		return queue;
+	}
+	
 	@Override
 	public COMPARATOR KEY_SUPER_GENERIC_TYPE comparator() {
 		return comparator;

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

@@ -1,5 +1,13 @@
 package speiger.src.collections.PACKAGE.queues;
 
+#if TYPE_OBJECT
+import java.util.Collection;
+import java.util.Iterator;
+#endif
+import speiger.src.collections.PACKAGE.collections.COLLECTION;
+import speiger.src.collections.PACKAGE.collections.ITERATOR;
+import speiger.src.collections.PACKAGE.utils.PRIORITY_QUEUES;
+
 /**
  * A Type Speciifc PriorityDeque or Dequeue interface to allow implementations like FIFO queues.
  * @Type(T)
@@ -11,6 +19,56 @@ public interface PRIORITY_DEQUEUE KEY_GENERIC_TYPE extends PRIORITY_QUEUE KEY_GE
 	 * @param e the element that should be inserted into the first place
 	 */
 	public void enqueueFirst(KEY_TYPE e);
+	
+	/**
+	 * Method to mass insert a elements into the first Index of the PriorityDequeue.
+	 * @param e the elements that should be inserted
+	 */
+	public default void enqueueAllFirst(KEY_TYPE... e) {
+		enqueueAllFirst(e, 0, e.length);
+	}
+	
+	/**
+	 * Method to mass insert a elements into the first Index of the PriorityDequeue.
+	 * @param e the elements that should be inserted
+	 * @param length the amount of elements that should be inserted
+	 */
+	public default void enqueueAllFirst(KEY_TYPE[] e, int length) {
+		enqueueAllFirst(e, 0, length);
+	}
+	
+	/**
+	 * Method to mass insert a elements into the first Index of the PriorityDequeue.
+	 * @param e the elements that should be inserted
+	 * @param offset the offset where in the array should be started
+	 * @param length the amount of elements that should be inserted
+	 */	
+	public default void enqueueAllFirst(KEY_TYPE[] e, int offset, int length) {
+		for(int i = 0;i<length;i++)
+			enqueueFirst(e[i+offset]);
+	}
+	
+	/**
+	 * Method to mass insert elements into first Index of the PriorityDequeue.
+	 * @param c the elements that should be inserted from the Collection
+	 */
+	public default void enqueueAllFirst(COLLECTION KEY_GENERIC_TYPE c) {
+		for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();)
+			enqueueFirst(iter.NEXT());
+	}
+	
+#if TYPE_OBJECT
+	/**
+	 * Method to mass insert elements into first Index of the PriorityDequeue.
+	 * This method exists to add support for Java Collections to make it more useable
+	 * @param c the elements that should be inserted from the Collection
+	 */
+	public default void enqueueAllFirst(Collection<? extends CLASS_TYPE> c) {
+		for(Iterator<? extends CLASS_TYPE> iter = c.iterator();iter.hasNext();)
+			enqueueFirst(iter.next());
+	}
+	
+#endif
 	/**
 	 * A Method to remove a element from the last place instead of the first
 	 * @return the last element inserted
@@ -22,4 +80,22 @@ public interface PRIORITY_DEQUEUE KEY_GENERIC_TYPE extends PRIORITY_QUEUE KEY_GE
 	 * @return the Last Element within the dequeue without deleting it
 	 */
 	public default KEY_TYPE last() { return peek(size()-1); }
+	
+	/**
+	 * Creates a Wrapped PriorityDequeue that is Synchronized
+	 * @return a new PriorityDequeue that is synchronized
+	 * @see PRIORITY_QUEUES#synchronize
+	 */
+	public default PRIORITY_DEQUEUE KEY_GENERIC_TYPE synchronizeQueue() { return PRIORITY_QUEUES.synchronize(this); }
+	
+	/**
+	 * Creates a Wrapped PriorityDequeue that is Synchronized
+	 * @param mutex is the controller of the synchronization block
+	 * @return a new PriorityDequeue Wrapper that is synchronized
+	 * @see PRIORITY_QUEUES#synchronize
+	 */
+	public default PRIORITY_DEQUEUE KEY_GENERIC_TYPE synchronizeQueue(Object mutex) { return PRIORITY_QUEUES.synchronize(this, mutex); }
+	
+	@Override
+	public PRIORITY_DEQUEUE KEY_GENERIC_TYPE copy();
 }

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

@@ -2,11 +2,18 @@ package speiger.src.collections.PACKAGE.queues;
 
 #if TYPE_OBJECT
 import java.util.Comparator;
-import speiger.src.collections.objects.collections.ObjectIterator;
+import java.util.Collection;
+import java.util.Iterator;
+
+import speiger.src.collections.ints.functions.function.Int2ObjectFunction;
 #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;
+import speiger.src.collections.PACKAGE.utils.PRIORITY_QUEUES;
+
 
 /**
  * A Simple PriorityQueue (or Queue) interface that provides with the nessesary functions to interact with it, without cluttering with the Collection interface.
@@ -33,6 +40,57 @@ public interface PRIORITY_QUEUE KEY_GENERIC_TYPE extends ITERABLE KEY_GENERIC_TY
 	 * @param e the element that should be inserted
 	 */
 	public void enqueue(KEY_TYPE e);
+	
+	/**
+	 * Method to mass insert elements into the PriorityQueue
+	 * @param e the elements that should be inserted
+	 */
+	public default void enqueueAll(KEY_TYPE... e) {
+		enqueueAll(e, 0, e.length);
+	}
+	
+	/**
+	 * Method to mass insert elements into the PriorityQueue
+	 * @param e the elements that should be inserted
+	 * @param length the amount of elements that should be inserted
+	 */
+	public default void enqueueAll(KEY_TYPE[] e, int length) {
+		enqueueAll(e, 0, length);
+	}
+	
+	/**
+	 * Method to mass insert elements into the PriorityQueue
+	 * @param e the elements that should be inserted
+	 * @param offset the offset where in the array should be started
+	 * @param length the amount of elements that should be inserted
+	 */
+	public default void enqueueAll(KEY_TYPE[] e, int offset, int length) {
+		for(int i = 0;i<length;i++) 
+			enqueue(e[i+offset]);
+	}
+	
+	/**
+	 * Method to mass insert elements into the PriorityQueue
+	 * @param c the elements that should be inserted from the Collection
+	 */
+	public default void enqueueAll(COLLECTION KEY_GENERIC_TYPE c) {
+		for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();)
+			enqueue(iter.NEXT());
+	}
+	
+#if TYPE_OBJECT
+	/**
+	 * Method to mass insert elements into the PriorityQueue
+	 * This method exists to add support for Java Collections to make it more useable
+	 * @param c the elements that should be inserted from the Collection
+	 */
+	public default void enqueueAll(Collection<? extends CLASS_TYPE> c) {
+		for(Iterator<? extends CLASS_TYPE> iter = c.iterator();iter.hasNext();)
+			enqueue(iter.next());
+	}
+	
+#endif
+	
 	/**
 	 * Method to extract a element from the PriorityQueue
 	 * @return a element from the Queue
@@ -70,6 +128,15 @@ public interface PRIORITY_QUEUE KEY_GENERIC_TYPE extends ITERABLE KEY_GENERIC_TY
 	 */
 	public void onChanged();
 	
+	/**
+	 * A Function that does a shallow clone of the PriorityQueue itself.
+	 * This function is more optimized then a copy constructor since the PriorityQueue does not have to be unsorted/resorted.
+	 * It can be compared to Cloneable but with less exception risk
+	 * @return a Shallow Copy of the PriorityQueue
+	 * @note Wrappers and view PriorityQueues will not support this feature
+	 */
+	public PRIORITY_QUEUE KEY_GENERIC_TYPE copy();
+	
 	/**
 	 * @return the sorter of the Queue, can be null
 	 */
@@ -81,6 +148,22 @@ public interface PRIORITY_QUEUE KEY_GENERIC_TYPE extends ITERABLE KEY_GENERIC_TY
 	 */
 	public ITERATOR KEY_GENERIC_TYPE iterator();
 #endif
+	
+	/**
+	 * Creates a Wrapped PriorityQueue that is Synchronized
+	 * @return a new PriorityQueue that is synchronized
+	 * @see PRIORITY_QUEUES#synchronize
+	 */
+	public default PRIORITY_QUEUE KEY_GENERIC_TYPE synchronizeQueue() { return PRIORITY_QUEUES.synchronize(this); }
+	
+	/**
+	 * Creates a Wrapped PriorityQueue that is Synchronized
+	 * @param mutex is the controller of the synchronization block
+	 * @return a new PriorityQueue Wrapper that is synchronized
+	 * @see PRIORITY_QUEUES#synchronize
+	 */
+	public default PRIORITY_QUEUE KEY_GENERIC_TYPE synchronizeQueue(Object mutex) { return PRIORITY_QUEUES.synchronize(this, mutex); }
+	
 	/**
 	 * A method to drop the contents of the Queue without clearing the queue
 	 * @Type(E)
@@ -95,4 +178,15 @@ public interface PRIORITY_QUEUE KEY_GENERIC_TYPE extends ITERABLE KEY_GENERIC_TY
 	 * @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);
+#if TYPE_OBJECT
+	/**
+	 * A Helper function that simplifies the process of creating a new Array.
+	 * @param action the array creation function
+	 * @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()));
+	}
+#endif
 }

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

@@ -4,6 +4,7 @@ import java.util.Collection;
 #if TYPE_OBJECT
 import java.util.Comparator;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
 import java.util.Iterator;
 import java.util.NoSuchElementException;
@@ -13,8 +14,9 @@ import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+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.PACKAGE.lists.LIST_ITERATOR;
@@ -211,6 +213,9 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 #endif
 	@Override
 	public boolean add(KEY_TYPE o) {
+#if TYPE_OBJECT
+		validate(o);
+#endif
 		if(tree == null) {
 			tree = first = last = new EntryBRACES(o, null);
 			size++;
@@ -240,7 +245,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 		fixAfterInsertion(adding);
 		size++;
-		return false;
+		return true;
 	}
 	
 	@Override
@@ -304,10 +309,10 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-			action.accept(entry.key, input);		
+			action.accept(input, entry.key);		
 	}
 	
 	@Override
@@ -346,6 +351,55 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		return EMPTY_VALUE;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			state = operator.APPLY_VALUE(state, entry.key);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			state = operator.APPLY_VALUE(state, entry.key);
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			if(empty) {
+				empty = false;
+				state = entry.key;
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, entry.key);
+		}
+		return state;
+	}
+	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		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++;
+		}
+		return result;
+	}
+	
 	protected Entry KEY_GENERIC_TYPE findNode(KEY_TYPE o) {
 		Entry KEY_GENERIC_TYPE node = tree;
 		int compare;
@@ -528,6 +582,21 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		tree = null;
 	}
 	
+	public AVL_TREE_SET KEY_GENERIC_TYPE copy() {
+		AVL_TREE_SET KEY_GENERIC_TYPE set = new AVL_TREE_SETBRACES();
+		set.size = size;
+		if(tree != null) {
+			set.tree = tree.copy();
+			Entry KEY_GENERIC_TYPE lastFound = null;
+			for(Entry KEY_GENERIC_TYPE entry = tree;entry != null;entry = entry.left) lastFound = entry;
+			set.first = lastFound;
+			lastFound = null;
+			for(Entry KEY_GENERIC_TYPE entry = tree;entry != null;entry = entry.right) lastFound = entry;
+			set.last = lastFound;
+		}
+		return set;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() { return comparator; }
 	
@@ -586,6 +655,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 	}
 	
+	protected void validate(KEY_TYPE k) { compare(k, k); }
 	protected int compare(KEY_TYPE k, KEY_TYPE v) { return comparator != null ? comparator.compare(k, v) : COMPAREABLE_TO_KEY(k, v);}
 	
 	/** From CLR */
@@ -999,6 +1069,9 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			return fromStart && toEnd ? set.size() : iterator().skip(Integer.MAX_VALUE);
 		}
 		
+		@Override
+		public SubSet KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
 			Objects.requireNonNull(action);
@@ -1008,10 +1081,10 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 		
 		@Override
-		public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry))
-				action.accept(entry.key, input);		
+				action.accept(input, entry.key);		
 		}
 		
 		@Override
@@ -1041,6 +1114,45 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			return true;
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = identity;
+			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
+				state = operator.APPLY_VALUE(state, entry.key);
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			KEY_SPECIAL_TYPE state = identity;
+			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
+				state = operator.APPLY_VALUE(state, entry.key);
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = EMPTY_VALUE;
+			boolean empty = true;
+			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
+				if(empty) {
+					empty = false;
+					state = entry.key;
+					continue;
+				}
+				state = operator.APPLY_VALUE(state, entry.key);
+			}
+			return state;
+		}
+		
 		@Override
 		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -1050,6 +1162,16 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			return EMPTY_VALUE;
 		}
 		
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+			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++;
+			}
+			return result;
+		}
+		
 		class SubSetIterator implements LIST_ITERATOR KEY_GENERIC_TYPE
 		{
 			Entry KEY_GENERIC_TYPE previous;
@@ -1230,6 +1352,22 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			this.parent = parent;
 		}
 		
+		Entry KEY_GENERIC_TYPE copy() {
+			Entry KEY_GENERIC_TYPE entry = new EntryBRACES(key, null);
+			entry.state = state;
+			if(left != null) {
+				Entry KEY_GENERIC_TYPE newLeft = left.copy();
+				entry.left = newLeft;
+				newLeft.parent = entry;
+			}
+			if(right != null) {
+				Entry KEY_GENERIC_TYPE newRight = right.copy();
+				entry.right = newRight;
+				newRight.parent = entry;
+			}
+			return entry;
+		}
+		
 		int getHeight() { return state; }
 		
 		void updateHeight() { state = (1 + Math.max(left == null ? -1 : left.getHeight(), right == null ? -1 : right.getHeight())); }

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

@@ -1,7 +1,8 @@
 package speiger.src.collections.PACKAGE.sets;
 
-import java.util.Iterator;
+#if TYPE_OBJECT
 import java.util.Objects;
+#endif
 import java.util.Set;
 
 import speiger.src.collections.PACKAGE.collections.ABSTRACT_COLLECTION;
@@ -15,13 +16,15 @@ public abstract class ABSTRACT_SET KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 {
 	@Override
 	public abstract ITERATOR KEY_GENERIC_TYPE iterator();
+	@Override
+	public ABSTRACT_SET KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 	
 	@Override
 	public int hashCode() {
-		int hashCode = 1;
+		int hashCode = 0;
 		ITERATOR KEY_GENERIC_TYPE i = iterator();
 		while(i.hasNext())
-			hashCode = 31 * hashCode + KEY_TO_HASH(i.NEXT());
+			hashCode += KEY_TO_HASH(i.NEXT());
 		return hashCode;
 	}
 	
@@ -33,24 +36,10 @@ public abstract class ABSTRACT_SET KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 			return false;
 		Set<?> l = (Set<?>)o;
 		if(l.size() != size()) return false;
-#if !TYPE_OBJECT		
+		try {
-		if(l instanceof SET)
+			return containsAll(l);
-		{
+		} catch (ClassCastException | NullPointerException unused) {
-			ITERATOR e1 = iterator();
-			ITERATOR e2 = ((SET)l).iterator();
-			while (e1.hasNext() && e2.hasNext()) {
-				if(!(KEY_EQUALS(e1.NEXT(), e2.NEXT())))
 			return false;
 		}
-			return !(e1.hasNext() || e2.hasNext());
-		}
-#endif
-		Iterator<CLASS_TYPE> e1 = iterator();
-		Iterator<?> e2 = l.iterator();
-		while (e1.hasNext() && e2.hasNext()) {
-			if(!Objects.equals(e1.next(), e2.next()))
-				return false;
-		}
-		return !(e1.hasNext() || e2.hasNext());
 	}
 }

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

@@ -5,6 +5,7 @@ import java.util.Collection;
 #if TYPE_OBJECT
 import java.util.Comparator;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
 import java.util.NoSuchElementException;
 import java.util.Objects;
@@ -16,8 +17,9 @@ import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
@@ -72,8 +74,8 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	 * @throws NegativeArraySizeException if the length is negative
 	 */
 	public ARRAY_SET(KEY_TYPE[] array, int length) {
-		data = Arrays.copyOf(array, length);
+		this(length);
-		size = length;
+		addAll(array, length);
 	}
 	
 	/**
@@ -227,6 +229,21 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		return result;
 	}
 	
+	@Override
+	public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) {
+		int j = 0;
+		for(int i = 0;i<size;i++) {
+			if(!c.contains(data[i])) data[j++] = data[i];
+			else r.accept(data[i]);
+		}
+		boolean result = j != size;
+#if TYPE_OBJECT
+		Arrays.fill(data, j, size, null);
+#endif
+		size = j;
+		return result;
+	}
+	
 	@Override
 	public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c) {
 		int j = 0;
@@ -242,6 +259,21 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		return result;
 	}
 	
+	@Override
+	public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) {
+		int j = 0;
+		for(int i = 0;i<size;i++) {
+			if(c.contains(data[i])) data[j++] = data[i];
+			else r.accept(data[i]);
+		}
+		boolean result = j != size;
+#if TYPE_OBJECT
+		Arrays.fill(data, j, size, null);
+#endif
+		size = j;
+		return result;
+	}
+	
 	@Override
 	@Primitive
 	public boolean removeAll(Collection<?> c) {
@@ -350,10 +382,10 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	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(data[i], input);		
+			action.accept(input, data[i]);		
 	}
 	
 	@Override
@@ -392,6 +424,55 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		return EMPTY_VALUE;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		for(int i = 0;i<size;i++) {
+			state = operator.APPLY_VALUE(state, data[i]);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		for(int i = 0;i<size;i++) {
+			state = operator.APPLY_VALUE(state, data[i]);
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		for(int i = 0;i<size;i++) {
+			if(empty) {
+				empty = false;
+				state = data[i];
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, data[i]);
+		}
+		return state;
+	}
+	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		int result = 0;
+		for(int i = 0;i<size;i++) {
+			if(filter.TEST_VALUE(data[i])) result++;
+		}
+		return result;
+	}
+	
 #if !TYPE_OBJECT
 	protected int findIndex(KEY_TYPE o) {
 		for(int i = size-1;i>=0;i--)
@@ -440,6 +521,13 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		return new SubSet(fromIndex, size - fromIndex);
 	}
 	
+	public ARRAY_SET KEY_GENERIC_TYPE copy() {
+		ARRAY_SET KEY_GENERIC_TYPE set = new ARRAY_SETBRACES();
+		set.data = Arrays.copyOf(data, data.length);
+		set.size = size;
+		return set;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() {
 		return null;
@@ -460,6 +548,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
 		if(a == null || a.length < size()) return Arrays.copyOf(data, size());
 		System.arraycopy(data, 0, a, 0, size());
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
 		return a;
 	}
 	
@@ -480,6 +569,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		else if(a.length < size()) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size());
 		for(int i = 0;i<size();i++)
 			a[i] = (E)KEY_TO_OBJ(data[i]);
+		if (a.length > size) a[size] = null;
 		return a;
 	}
 	
@@ -666,6 +756,9 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 			throw new NoSuchElementException();
 		}
 		
+		@Override
+		public SubSet copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public SORTED_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, KEY_TYPE toElement) {
 			int fromIndex = findIndex(fromElement);
@@ -750,6 +843,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 			
 			@Override
 			public KEY_TYPE NEXT() {
+				if(!hasNext()) throw new NoSuchElementException();
 				lastReturned = index;
 				return data[index++];
 			}
@@ -761,6 +855,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 			
 			@Override
 			public KEY_TYPE PREVIOUS() {
+				if(!hasPrevious()) throw new NoSuchElementException();
 				lastReturned = index;
 				return data[index--];
 			}
@@ -833,6 +928,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		
 		@Override
 		public KEY_TYPE NEXT() {
+			if(!hasNext()) throw new NoSuchElementException();
 			lastReturned = index;
 			return data[index++];
 		}
@@ -844,6 +940,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
+			if(!hasPrevious()) throw new NoSuchElementException();
 			lastReturned = index;
 			return data[index--];
 		}
@@ -860,11 +957,9 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		
 		@Override
 		public void remove() {
-			if(lastReturned == -1)
+			if(lastReturned == -1) throw new IllegalStateException();
-				throw new IllegalStateException();
 			ARRAY_SET.this.remove(data[lastReturned]);
-			if(lastReturned < index)
+			if(lastReturned < index) index--;
-				index--;
 			lastReturned = -1;
 		}
 		

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

@@ -3,7 +3,9 @@ package speiger.src.collections.PACKAGE.sets;
 #if TYPE_OBJECT
 import java.util.Comparator;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
@@ -16,8 +18,9 @@ import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
@@ -50,6 +53,12 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 	/** The Last Index in the Map */
 	protected int lastIndex = -1;
 	
+	/**
+	 * Helper constructor to optimize the copying
+	 * Only accessible through implementations
+	 */
+	protected IMMUTABLE_HASH_SET() {}
+	
 	/**
 	 * Helper constructor that allow to create a set from unboxed values
 	 * @param array the elements that should be put into the set
@@ -181,7 +190,18 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		{
 			KEY_TYPE o = a[i];
 			if(KEY_EQUALS_NULL(o)) {
-				if(!containsNull) size++;
+				if(!containsNull) {
+					size++;
+					if(prev != -1) {
+						newLinks[prev] ^= ((newLinks[prev] ^ (newSize & 0xFFFFFFFFL)) & 0xFFFFFFFFL);
+						newLinks[newSize] ^= ((newLinks[newSize] ^ ((prev & 0xFFFFFFFFL) << 32)) & 0xFFFFFFFF00000000L);
+						prev = newSize;
+					}
+					else {
+						prev = firstIndex = newSize;
+						newLinks[newSize] = -1L;
+					}
+				}
 				containsNull = true;
 				continue;
 			}
@@ -190,7 +210,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 			KEY_TYPE current = newKeys[pos];
 			if(KEY_EQUALS_NOT_NULL(current)) {
 				if(KEY_EQUALS(current, o)) continue;
-				while(KEY_EQUALS_NOT_NULL((current = newKeys[pos = (++pos & mask)]))) {
+				while(KEY_EQUALS_NOT_NULL((current = newKeys[pos = (++pos & newMask)]))) {
 					if(KEY_EQUALS(current, o)) {
 						found = false;
 						break;
@@ -211,7 +231,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 				}
 			}
 		}
-		nullIndex = size;
+		nullIndex = newSize;
 		mask = newMask;
 		keys = newKeys;
 		links = newLinks;
@@ -297,11 +317,11 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		int index = firstIndex;
 		while(index != -1) {
-			action.accept(keys[index], input);
+			action.accept(input, keys[index]);
 			index = (int)links[index];
 		}
 	}
@@ -312,6 +332,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		int index = firstIndex;
 		while(index != -1) {
 			if(filter.TEST_VALUE(keys[index])) return true;
+			index = (int)links[index];
 		}
 		return false;
 	}
@@ -322,6 +343,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		int index = firstIndex;
 		while(index != -1) {
 			if(filter.TEST_VALUE(keys[index])) return false;
+			index = (int)links[index];
 		}
 		return true;
 	}
@@ -332,20 +354,78 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		int index = firstIndex;
 		while(index != -1) {
 			if(!filter.TEST_VALUE(keys[index])) return false;
+			index = (int)links[index];
 		}
 		return true;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		int index = firstIndex;
+		while(index != -1) {
+			state = operator.APPLY_VALUE(state, keys[index]);
+			index = (int)links[index];
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		int index = firstIndex;
+		while(index != -1) {
+			state = operator.APPLY_VALUE(state, keys[index]);
+			index = (int)links[index];
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		int index = firstIndex;
+		while(index != -1) {
+			if(empty) {
+				state = keys[index];
+				empty = false;
+			}
+			else state = operator.APPLY_VALUE(state, keys[index]);
+			index = (int)links[index];
+		}
+		return state;
+	}
+	
 	@Override
 	public KEY_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];
+			index = (int)links[index];
 		}
 		return EMPTY_VALUE;
 	}
 	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		int result = 0;
+		int index = firstIndex;
+		while(index != -1) {
+			if(filter.TEST_VALUE(keys[index])) result++;
+			index = (int)links[index];
+		}
+		return result;
+	}
+	
 	@Override
 	public LIST_ITERATOR KEY_GENERIC_TYPE iterator() {
 		return new SetIterator();
@@ -356,6 +436,20 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		return new SetIterator(fromElement);
 	}
 	
+	@Override
+	public IMMUTABLE_HASH_SET KEY_GENERIC_TYPE copy() {
+		IMMUTABLE_HASH_SET KEY_GENERIC_TYPE set = new IMMUTABLE_HASH_SETBRACES();
+		set.containsNull = containsNull;
+		set.firstIndex = firstIndex;
+		set.lastIndex = lastIndex;
+		set.size = size;
+		set.mask = mask;
+		set.nullIndex = nullIndex;
+		set.keys = Arrays.copyOf(keys, keys.length);
+		set.links = Arrays.copyOf(links, links.length);
+		return set;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() { return null; }
 	

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

@@ -3,7 +3,9 @@ package speiger.src.collections.PACKAGE.sets;
 #if TYPE_OBJECT
 import java.util.Comparator;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
+import java.util.Arrays;
 import java.util.Objects;
 import java.util.Collection;
 import java.util.Iterator;
@@ -22,8 +24,9 @@ import speiger.src.collections.PACKAGE.lists.LIST_ITERATOR;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.utils.STRATEGY;
 import speiger.src.collections.utils.HashUtil;
 import speiger.src.collections.utils.SanityChecks;
@@ -534,11 +537,11 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		int index = firstIndex;
 		while(index != -1) {
-			action.accept(keys[index], input);
+			action.accept(input, keys[index]);
 			index = (int)links[index];
 		}
 	}
@@ -549,6 +552,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		int index = firstIndex;
 		while(index != -1) {
 			if(filter.TEST_VALUE(keys[index])) return true;
+			index = (int)links[index];
 		}
 		return false;
 	}
@@ -559,6 +563,7 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		int index = firstIndex;
 		while(index != -1) {
 			if(filter.TEST_VALUE(keys[index])) return false;
+			index = (int)links[index];
 		}
 		return true;
 	}
@@ -569,20 +574,78 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		int index = firstIndex;
 		while(index != -1) {
 			if(!filter.TEST_VALUE(keys[index])) return false;
+			index = (int)links[index];
 		}
 		return true;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		int index = firstIndex;
+		while(index != -1) {
+			state = operator.APPLY_VALUE(state, keys[index]);
+			index = (int)links[index];
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		int index = firstIndex;
+		while(index != -1) {
+			state = operator.APPLY_VALUE(state, keys[index]);
+			index = (int)links[index];
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		int index = firstIndex;
+		while(index != -1) {
+			if(empty) {
+				state = keys[index];
+				empty = false;
+			}
+			else state = operator.APPLY_VALUE(state, keys[index]);
+			index = (int)links[index];
+		}
+		return state;
+	}
+	
 	@Override
 	public KEY_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];
+			index = (int)links[index];
 		}
 		return EMPTY_VALUE;
 	}
 	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		int result = 0;
+		int index = firstIndex;
+		while(index != -1) {
+			if(filter.TEST_VALUE(keys[index])) result++;
+			index = (int)links[index];
+		}
+		return result;
+	}
+	
 	@Override
 	public LIST_ITERATOR KEY_GENERIC_TYPE iterator() {
 		return new SetIterator();
@@ -593,6 +656,22 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 		return new SetIterator(fromElement);
 	}
 	
+	@Override
+	public LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE copy() {
+		LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE set = new LINKED_CUSTOM_HASH_SETBRACES(0, loadFactor, strategy);
+		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);
+		set.links = Arrays.copyOf(links, links.length);
+		set.firstIndex = firstIndex;
+		set.lastIndex = lastIndex;
+		return set;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() { return null; }
 	

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

@@ -3,12 +3,14 @@ package speiger.src.collections.PACKAGE.sets;
 #if TYPE_OBJECT
 import java.util.Comparator;
 #endif
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
 #if TYPE_OBJECT
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
@@ -20,8 +22,9 @@ import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+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;
@@ -389,11 +392,11 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		int index = firstIndex;
 		while(index != -1) {
-			action.accept(keys[index], input);
+			action.accept(input, keys[index]);
 			index = (int)links[index];
 		}
 	}
@@ -404,6 +407,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		int index = firstIndex;
 		while(index != -1) {
 			if(filter.TEST_VALUE(keys[index])) return true;
+			index = (int)links[index];
 		}
 		return false;
 	}
@@ -414,6 +418,7 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		int index = firstIndex;
 		while(index != -1) {
 			if(filter.TEST_VALUE(keys[index])) return false;
+			index = (int)links[index];
 		}
 		return true;
 	}
@@ -424,20 +429,78 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		int index = firstIndex;
 		while(index != -1) {
 			if(!filter.TEST_VALUE(keys[index])) return false;
+			index = (int)links[index];
 		}
 		return true;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		int index = firstIndex;
+		while(index != -1) {
+			state = operator.APPLY_VALUE(state, keys[index]);
+			index = (int)links[index];
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		int index = firstIndex;
+		while(index != -1) {
+			state = operator.APPLY_VALUE(state, keys[index]);
+			index = (int)links[index];
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		int index = firstIndex;
+		while(index != -1) {
+			if(empty) {
+				state = keys[index];
+				empty = false;
+			}
+			else state = operator.APPLY_VALUE(state, keys[index]);
+			index = (int)links[index];
+		}
+		return state;
+	}
+	
 	@Override
 	public KEY_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];
+			index = (int)links[index];
 		}
 		return EMPTY_VALUE;
 	}
 	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		int result = 0;
+		int index = firstIndex;
+		while(index != -1) {
+			if(filter.TEST_VALUE(keys[index])) result++;
+			index = (int)links[index];
+		}
+		return result;
+	}
+	
 	@Override
 	protected void onNodeAdded(int pos) {
 		if(size == 0) {
@@ -564,6 +627,22 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 		return new SetIterator(fromElement);
 	}
 	
+	@Override
+	public LINKED_HASH_SET KEY_GENERIC_TYPE copy() {
+		LINKED_HASH_SET KEY_GENERIC_TYPE set = new LINKED_HASH_SETBRACES(0, loadFactor);
+		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);
+		set.links = Arrays.copyOf(links, links.length);
+		set.firstIndex = firstIndex;
+		set.lastIndex = lastIndex;
+		return set;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() { return null; }
 	

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

@@ -4,6 +4,7 @@ import java.util.NavigableSet;
 
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
+import speiger.src.collections.PACKAGE.utils.SETS;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
 
 /**
@@ -115,7 +116,33 @@ public interface NAVIGABLE_SET KEY_GENERIC_TYPE extends NavigableSet<CLASS_TYPE>
 	/** @return a Type Specific desendingSet */
 	@Override
 	public NAVIGABLE_SET KEY_GENERIC_TYPE descendingSet();
+	@Override
+	public NAVIGABLE_SET KEY_GENERIC_TYPE copy();
 	
+#if !TYPE_BOOLEAN
+	/**
+	 * Creates a Wrapped NavigableSet that is Synchronized
+	 * @return a new NavigableSet that is synchronized
+	 * @see SETS#synchronize
+	 */
+	public default NAVIGABLE_SET KEY_GENERIC_TYPE synchronize() { return SETS.synchronize(this); }
+	
+	/**
+	 * Creates a Wrapped NavigableSet that is Synchronized
+	 * @param mutex is the controller of the synchronization block
+	 * @return a new NavigableSet Wrapper that is synchronized
+	 * @see SETS#synchronize
+	 */
+	public default NAVIGABLE_SET KEY_GENERIC_TYPE synchronize(Object mutex) { return SETS.synchronize(this, mutex); }
+	
+	/**
+	 * Creates a Wrapped NavigableSet that is unmodifiable
+	 * @return a new NavigableSet Wrapper that is unmodifiable
+	 * @see SETS#unmodifiable
+	 */
+	public default NAVIGABLE_SET KEY_GENERIC_TYPE unmodifiable() { return SETS.unmodifiable(this); }
+	
+#endif
 	/**
 	 * A Type Specific Type Splititerator to reduce boxing/unboxing
 	 * @return type specific splititerator

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

@@ -2,11 +2,13 @@ package speiger.src.collections.PACKAGE.sets;
 
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.ConcurrentModificationException;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
 #if TYPE_OBJECT
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
@@ -17,8 +19,9 @@ import speiger.src.collections.PACKAGE.lists.LIST;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.PACKAGE.utils.STRATEGY;
 
 import speiger.src.collections.utils.HashUtil;
@@ -429,7 +432,10 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		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(strategy.equals(keys[--i], EMPTY_KEY_VALUE));
+			while(true) {
+				if(--i < 0) throw new ConcurrentModificationException("Set was modified during rehash");
+				if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) break;
+			}
 			if(!strategy.equals(newKeys[pos = HashUtil.mix(KEY_TO_HASH(keys[i])) & newMask], EMPTY_KEY_VALUE))
 				while(!strategy.equals(newKeys[pos = (++pos & newMask)], EMPTY_KEY_VALUE));
 			newKeys[pos] = keys[i];
@@ -445,6 +451,19 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		return new SetIterator();
 	}
 	
+	@Override
+	public CUSTOM_HASH_SET KEY_GENERIC_TYPE copy() {
+		CUSTOM_HASH_SET KEY_GENERIC_TYPE set = new CUSTOM_HASH_SETBRACES(0, loadFactor, strategy);
+		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;
+	}
+	
 	@Override
 	public void clear() {
 		if(size == 0) return;
@@ -468,12 +487,12 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		if(size() <= 0) return;
-		if(containsNull) action.accept(keys[nullIndex], input);
+		if(containsNull) action.accept(input, keys[nullIndex]);
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(keys[i], input);
+			if(!strategy.equals(keys[i], EMPTY_KEY_VALUE)) action.accept(input, keys[i]);
 		}
 	}
 	
@@ -510,6 +529,54 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		return true;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		if(containsNull) state = operator.APPLY_VALUE(state, keys[nullIndex]);
+		for(int i = nullIndex-1;i>=0;i--) {
+			if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
+			state = operator.APPLY_VALUE(state, keys[i]);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		if(containsNull) state = operator.APPLY_VALUE(state, keys[nullIndex]);
+		for(int i = nullIndex-1;i>=0;i--) {
+			if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
+			state = operator.APPLY_VALUE(state, keys[i]);
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		if(containsNull) {
+			state = keys[nullIndex];
+			empty = false;
+		}
+		for(int i = 0;i<size;i++) {
+			if(strategy.equals(keys[i], EMPTY_KEY_VALUE)) continue;
+			if(empty) {
+				empty = false;
+				state = keys[i];
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, keys[i]);
+		}
+		return state;
+	}
+	
 	@Override
 	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
@@ -521,8 +588,21 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		return EMPTY_VALUE;
 	}
 	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		if(size() <= 0) return 0;
+		int result = 0;
+		if(containsNull && filter.TEST_VALUE(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++;
+		}
+		return result;
+	}
+	
 	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;
@@ -555,6 +635,7 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		@Override
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
+			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
 				KEY_TYPE value = wrapped.GET_KEY(nextIndex);
@@ -573,9 +654,10 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 				containsNull = false;
 				keys[nullIndex] = EMPTY_KEY_VALUE;
 			}
-			else if(pos >= 0) shiftKeys(pos);
+			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				CUSTOM_HASH_SET.this.remove(wrapped.GET_KEY(-pos - 1));
+				CUSTOM_HASH_SET.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				lastReturned = -1;
 				return;
 			}
 			size--;

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

@@ -2,11 +2,13 @@ package speiger.src.collections.PACKAGE.sets;
 
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.ConcurrentModificationException;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
 #if TYPE_OBJECT
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
@@ -17,8 +19,9 @@ import speiger.src.collections.PACKAGE.lists.LIST;
 import speiger.src.collections.PACKAGE.utils.ITERATORS;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
 import speiger.src.collections.utils.HashUtil;
 import speiger.src.collections.utils.ITrimmable;
 import speiger.src.collections.utils.SanityChecks;
@@ -337,12 +340,12 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		if(size() <= 0) return;
-		if(containsNull) action.accept(keys[nullIndex], input);
+		if(containsNull) action.accept(input, keys[nullIndex]);
 		for(int i = nullIndex-1;i>=0;i--) {
-			if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(keys[i], input);
+			if(KEY_EQUALS_NOT_NULL(keys[i])) action.accept(input, keys[i]);
 		}
 	}
 	
@@ -379,6 +382,54 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		return true;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		if(containsNull) state = operator.APPLY_VALUE(state, keys[nullIndex]);
+		for(int i = nullIndex-1;i>=0;i--) {
+			if(KEY_EQUALS_NULL(keys[i])) continue;
+			state = operator.APPLY_VALUE(state, keys[i]);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		if(containsNull) state = operator.APPLY_VALUE(state, keys[nullIndex]);
+		for(int i = nullIndex-1;i>=0;i--) {
+			if(KEY_EQUALS_NULL(keys[i])) continue;
+			state = operator.APPLY_VALUE(state, keys[i]);
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		if(containsNull) {
+			state = keys[nullIndex];
+			empty = false;
+		}
+		for(int i = 0;i<size;i++) {
+			if(KEY_EQUALS_NULL(keys[i])) continue;
+			if(empty) {
+				empty = false;
+				state = keys[i];
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, keys[i]);
+		}
+		return state;
+	}
+	
 	@Override
 	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
@@ -390,6 +441,18 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		return EMPTY_VALUE;
 	}
 	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		Objects.requireNonNull(filter);
+		if(size() <= 0) return 0;
+		int result = 0;
+		if(containsNull && filter.TEST_VALUE(keys[nullIndex])) result++;
+		for(int i = nullIndex-1;i>=0;i--) {
+			if(KEY_EQUALS_NOT_NULL(keys[i]) && filter.TEST_VALUE(keys[i])) result++;
+		}
+		return result;
+	}
+	
 	private void ensureCapacity(int newCapacity) {
 		int size = HashUtil.arraySize(newCapacity, loadFactor);
 		if(size > nullIndex) rehash(size);
@@ -449,7 +512,10 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		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(KEY_EQUALS_NULL(keys[--i]));
+			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];
@@ -465,6 +531,19 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		return new SetIterator();
 	}
 	
+	@Override
+	public HASH_SET KEY_GENERIC_TYPE copy() {
+		HASH_SET KEY_GENERIC_TYPE set = new HASH_SETBRACES(0, loadFactor);
+		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;
+	}
+	
 	@Override
 	public void clear() {
 		if(size == 0) return;
@@ -480,6 +559,7 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 	
 	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;
@@ -513,6 +593,7 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		@Override
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
+			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
 				KEY_TYPE value = wrapped.GET_KEY(nextIndex);
@@ -531,9 +612,10 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 				containsNull = false;
 				keys[nullIndex] = EMPTY_KEY_VALUE;
 			}
-			else if(pos >= 0) shiftKeys(pos);
+			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				HASH_SET.this.remove(wrapped.GET_KEY(-pos - 1));
+				HASH_SET.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				lastReturned = -1;
 				return;
 			}
 			size--;

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

@@ -4,6 +4,7 @@ import java.util.Collection;
 #if TYPE_OBJECT
 import java.util.Comparator;
 import java.util.function.Consumer;
+import java.util.function.BiFunction;
 #endif
 import java.util.Iterator;
 import java.util.NoSuchElementException;
@@ -13,8 +14,9 @@ import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
-import speiger.src.collections.PACKAGE.functions.consumer.BI_OBJECT_CONSUMER;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+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.PACKAGE.lists.LIST_ITERATOR;
@@ -211,6 +213,9 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 #endif
 	@Override
 	public boolean add(KEY_TYPE o) {
+#if TYPE_OBJECT
+		validate(o);
+#endif
 		if(tree == null) {
 			tree = first = last = new EntryBRACES(o, null);
 			size++;
@@ -240,7 +245,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 		fixAfterInsertion(adding);
 		size++;
-		return false;
+		return true;
 	}
 	
 	@Override
@@ -304,10 +309,10 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 	}
 	
 	@Override
-	public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+	public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 		Objects.requireNonNull(action);
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next())
-			action.accept(entry.key, input);		
+			action.accept(input, entry.key);		
 	}
 	
 	@Override
@@ -337,6 +342,45 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		return true;
 	}
 	
+#if !TYPE_OBJECT
+	@Override
+	public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = identity;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			state = operator.APPLY_VALUE(state, entry.key);
+		}
+		return state;
+	}
+	
+#else
+	@Override
+	public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+		Objects.requireNonNull(operator);
+		KEY_SPECIAL_TYPE state = identity;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			state = operator.APPLY_VALUE(state, entry.key);
+		}
+		return state;
+	}
+	
+#endif
+	@Override
+	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		Objects.requireNonNull(operator);
+		KEY_TYPE state = EMPTY_VALUE;
+		boolean empty = true;
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next()) {
+			if(empty) {
+				empty = false;
+				state = entry.key;
+				continue;
+			}
+			state = operator.APPLY_VALUE(state, entry.key);
+		}
+		return state;
+	}
+	
 	@Override
 	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
@@ -346,6 +390,16 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		return EMPTY_VALUE;
 	}
 	
+	@Override
+	public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+		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++;
+		}
+		return result;
+	}
+	
 	protected Entry KEY_GENERIC_TYPE findNode(KEY_TYPE o) {
 		Entry KEY_GENERIC_TYPE node = tree;
 		int compare;
@@ -530,6 +584,21 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		tree = null;
 	}
 	
+	public RB_TREE_SET KEY_GENERIC_TYPE copy() {
+		RB_TREE_SET KEY_GENERIC_TYPE set = new RB_TREE_SETBRACES();
+		set.size = size;
+		if(tree != null) {
+			set.tree = tree.copy();
+			Entry KEY_GENERIC_TYPE lastFound = null;
+			for(Entry KEY_GENERIC_TYPE entry = tree;entry != null;entry = entry.left) lastFound = entry;
+			set.first = lastFound;
+			lastFound = null;
+			for(Entry KEY_GENERIC_TYPE entry = tree;entry != null;entry = entry.right) lastFound = entry;
+			set.last = lastFound;
+		}
+		return set;
+	}
+	
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator() { return comparator; }
 	
@@ -594,6 +663,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 	}
 	
+	protected void validate(KEY_TYPE k) { compare(k, k); }
 	protected int compare(KEY_TYPE k, KEY_TYPE v) { return comparator != null ? comparator.compare(k, v) : COMPAREABLE_TO_KEY(k, v);}
 	protected static GENERIC_KEY_BRACES boolean isBlack(Entry KEY_GENERIC_TYPE p) { return p == null || p.isBlack(); }
 	protected static GENERIC_KEY_BRACES Entry KEY_GENERIC_TYPE parentOf(Entry KEY_GENERIC_TYPE p) { return (p == null ? null : p.parent); }
@@ -1060,6 +1130,9 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			return fromStart && toEnd ? set.size() : iterator().skip(Integer.MAX_VALUE);
 		}
 		
+		@Override
+		public SubSet KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
 			Objects.requireNonNull(action);
@@ -1069,10 +1142,10 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 		
 		@Override
-		public <E> void forEach(E input, BI_OBJECT_CONSUMER KKS_GENERIC_TYPE<E> action) {
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) {
 			Objects.requireNonNull(action);
 			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry))
-				action.accept(entry.key, input);		
+				action.accept(input, entry.key);		
 		}
 		
 		@Override
@@ -1102,6 +1175,45 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			return true;
 		}
 		
+#if !TYPE_OBJECT
+		@Override
+		public KEY_TYPE reduce(KEY_TYPE identity, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = identity;
+			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
+				state = operator.APPLY_VALUE(state, entry.key);
+			}
+			return state;
+		}
+		
+#else
+		@Override
+		public <KEY_SPECIAL_TYPE> KEY_SPECIAL_TYPE reduce(KEY_SPECIAL_TYPE identity, BiFunction<KEY_SPECIAL_TYPE, KEY_TYPE, KEY_SPECIAL_TYPE> operator) {
+			Objects.requireNonNull(operator);
+			KEY_SPECIAL_TYPE state = identity;
+			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
+				state = operator.APPLY_VALUE(state, entry.key);
+			}
+			return state;
+		}
+		
+#endif
+		@Override
+		public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+			Objects.requireNonNull(operator);
+			KEY_TYPE state = EMPTY_VALUE;
+			boolean empty = true;
+			for(Entry KEY_GENERIC_TYPE entry = start();entry != null && inRange(entry.key);entry = next(entry)) {
+				if(empty) {
+					empty = false;
+					state = entry.key;
+					continue;
+				}
+				state = operator.APPLY_VALUE(state, entry.key);
+			}
+			return state;
+		}
+		
 		@Override
 		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 			Objects.requireNonNull(filter);
@@ -1111,6 +1223,16 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			return EMPTY_VALUE;
 		}
 		
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) {
+			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++;
+			}
+			return result;
+		}
+		
 		class SubSetIterator implements LIST_ITERATOR KEY_GENERIC_TYPE
 		{
 			Entry KEY_GENERIC_TYPE previous;
@@ -1294,6 +1416,22 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			this.parent = parent;
 		}
 		
+		Entry KEY_GENERIC_TYPE copy() {
+			Entry KEY_GENERIC_TYPE entry = new EntryBRACES(key, null);
+			entry.state = state;
+			if(left != null) {
+				Entry KEY_GENERIC_TYPE newLeft = left.copy();
+				entry.left = newLeft;
+				newLeft.parent = entry;
+			}
+			if(right != null) {
+				Entry KEY_GENERIC_TYPE newRight = right.copy();
+				entry.right = newRight;
+				newRight.parent = entry;
+			}
+			return entry;
+		}
+		
 		boolean isBlack() {
 			return (state & BLACK) != 0;
 		}

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

@@ -5,8 +5,12 @@ import java.util.Set;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
+#if !TYPE_BOOLEAN
+import speiger.src.collections.PACKAGE.utils.SETS;
+#endif
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
 
+
 /**
  * A Type Specific Set class to reduce boxing/unboxing
  * @Type(T)
@@ -16,6 +20,9 @@ public interface SET KEY_GENERIC_TYPE extends Set<CLASS_TYPE>, COLLECTION KEY_GE
 	@Override
 	public ITERATOR KEY_GENERIC_TYPE iterator();
 	
+	@Override
+	public SET KEY_GENERIC_TYPE copy();
+	
 #if !TYPE_OBJECT
 	/**
 	 * A Type Specific remove function to reduce boxing/unboxing
@@ -46,6 +53,31 @@ public interface SET KEY_GENERIC_TYPE extends Set<CLASS_TYPE>, COLLECTION KEY_GE
 	public default boolean remove(Object o) {
 		return COLLECTION.super.remove(o);
 	}
+	
+#endif
+#if !TYPE_BOOLEAN
+	/**
+	 * Creates a Wrapped Set that is Synchronized
+	 * @return a new Set that is synchronized
+	 * @see SETS#synchronize
+	 */
+	public default SET KEY_GENERIC_TYPE synchronize() { return SETS.synchronize(this); }
+	
+	/**
+	 * Creates a Wrapped Set that is Synchronized
+	 * @param mutex is the controller of the synchronization block
+	 * @return a new Set Wrapper that is synchronized
+	 * @see SETS#synchronize
+	 */
+	public default SET KEY_GENERIC_TYPE synchronize(Object mutex) { return SETS.synchronize(this, mutex); }
+	
+	/**
+	 * Creates a Wrapped Set that is unmodifiable
+	 * @return a new Set Wrapper that is unmodifiable
+	 * @see SETS#unmodifiable
+	 */
+	public default SET KEY_GENERIC_TYPE unmodifiable() { return SETS.unmodifiable(this); }
+	
 #endif
 	/**
 	 * A Type Specific Type Splititerator to reduce boxing/unboxing

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

@@ -9,6 +9,7 @@ import java.util.Comparator;
 #else
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 #endif
+import speiger.src.collections.PACKAGE.utils.SETS;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
 
 /**
@@ -60,6 +61,9 @@ public interface SORTED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE, Sorte
 	@Override
 	public COMPARATOR KEY_GENERIC_TYPE comparator();
 	
+	@Override
+	public SORTED_SET KEY_GENERIC_TYPE copy();
+	
 	@Override
 	public BI_ITERATOR KEY_GENERIC_TYPE iterator();
 	/**
@@ -70,6 +74,30 @@ 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
+	/**
+	 * Creates a Wrapped SortedSet that is Synchronized
+	 * @return a new SortedSet that is synchronized
+	 * @see SETS#synchronize
+	 */
+	public default SORTED_SET KEY_GENERIC_TYPE synchronize() { return SETS.synchronize(this); }
+	
+	/**
+	 * Creates a Wrapped SortedSet that is Synchronized
+	 * @param mutex is the controller of the synchronization block
+	 * @return a new SortedSet Wrapper that is synchronized
+	 * @see SETS#synchronize
+	 */
+	public default SORTED_SET KEY_GENERIC_TYPE synchronize(Object mutex) { return SETS.synchronize(this, mutex); }
+	
+	/**
+	 * Creates a Wrapped SortedSet that is unmodifiable
+	 * @return a new SortedSet Wrapper that is unmodifiable
+	 * @see SETS#unmodifiable
+	 */
+	public default SORTED_SET KEY_GENERIC_TYPE unmodifiable() { return SETS.unmodifiable(this); }
+	
+#endif
 	/**
 	 * A Type Specific Type Splititerator to reduce boxing/unboxing
 	 * @return type specific splititerator

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

@@ -1,6 +1,9 @@
 package speiger.src.collections.PACKAGE.utils;
 
 import java.util.Collection;
+#if TYPE_OBJECT
+import java.util.function.BiFunction;
+#endif
 import java.util.function.Predicate;
 #if PRIMITIVES
 import java.util.function.JAVA_PREDICATE;
@@ -15,7 +18,9 @@ import speiger.src.collections.objects.utils.ObjectArrays;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
 import speiger.src.collections.PACKAGE.utils.ARRAYS;
 #endif
-
+import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.PACKAGE.functions.function.UNARY_OPERATOR;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 /**
  * A Helper class for Collections
  */
@@ -92,18 +97,16 @@ public class COLLECTIONS
 		public boolean add(KEY_TYPE o) { synchronized(mutex) { return c.add(o); } }
 		@Override
 		public boolean addAll(Collection<? extends CLASS_TYPE> c) { synchronized(mutex) { return this.c.addAll(c); } }
-		
 		@Override
 		public boolean addAll(COLLECTION KEY_GENERIC_TYPE c) { synchronized(mutex) { return this.c.addAll(c); } }
-		
+		@Override
+		public boolean addAll(KEY_TYPE[] e, int offset, int length) { synchronized(mutex) { return c.addAll(e, offset, length); } }
 #if !TYPE_OBJECT
 		@Override
 		public boolean contains(KEY_TYPE o) { synchronized(mutex) { return c.contains(o); } }
-		
 #else
 		@Override
 		public boolean contains(Object o) { synchronized(mutex) { return c.contains(o); } }
-		
 #endif
 		@Override
 		@Primitive
@@ -130,6 +133,9 @@ public class COLLECTIONS
 			return c.iterator();
 		}
 		
+		@Override
+		public COLLECTION KEY_GENERIC_TYPE copy() { synchronized(mutex) { return c.copy(); } }
+		
 		@Override
 		@Primitive
 		public boolean remove(Object o) { synchronized(mutex) { return c.remove(o); } }
@@ -146,7 +152,11 @@ public class COLLECTIONS
 		@Override
 		public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c) { synchronized(mutex) { return this.c.removeAll(c); } }
 		@Override
+		public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) { synchronized(mutex) { return this.c.removeAll(c, r); } }
+		@Override
 		public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c) { synchronized(mutex) { return this.c.retainAll(c); } }
+		@Override
+		public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) { synchronized(mutex) { return this.c.retainAll(c, r); } }
 #if PRIMITIVES
 		@Override
 		public boolean remIf(JAVA_PREDICATE filter){ synchronized(mutex) { return c.remIf(filter); } }
@@ -179,6 +189,26 @@ public class COLLECTIONS
 		public boolean equals(Object obj) { synchronized(mutex) { return c.equals(obj); } }
 		@Override
 		public String toString() { synchronized(mutex) { return c.toString(); } }
+		@Override
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) { synchronized(mutex) { c.forEach(input, action); } }
+		@Override
+		public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return c.matchesAny(filter); } }
+		@Override
+		public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return c.matchesNone(filter); } }
+		@Override
+		public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return c.matchesAll(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 c.reduce(identity, operator); } }
+#else
+		@Override
+		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); } }
+		@Override
+		public KEY_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); } }
 	}
 	
 	/**
@@ -198,6 +228,8 @@ public class COLLECTIONS
 		public boolean addAll(Collection<? extends CLASS_TYPE> c) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAll(COLLECTION KEY_GENERIC_TYPE c) { throw new UnsupportedOperationException(); }
+		@Override
+		public boolean addAll(KEY_TYPE[] e, int offset, int length) { throw new UnsupportedOperationException(); }
 #if !TYPE_OBJECT
 		@Override
 		public boolean contains(KEY_TYPE o) { return c.contains(o); }
@@ -222,6 +254,8 @@ public class COLLECTIONS
 		@Override
 		public ITERATOR KEY_GENERIC_TYPE iterator() { return ITERATORS.unmodifiable(c.iterator()); }
 		@Override
+		public COLLECTION KEY_GENERIC_TYPE copy() { return c.copy(); }
+		@Override
 		@Deprecated
 		public boolean remove(Object o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -240,7 +274,11 @@ public class COLLECTIONS
 		@Override
 		public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c) { throw new UnsupportedOperationException(); }
 		@Override
+		public boolean removeAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) { throw new UnsupportedOperationException(); }
+		@Override
 		public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c) { throw new UnsupportedOperationException(); }
+		@Override
+		public boolean retainAll(COLLECTION KEY_GENERIC_TYPE c, CONSUMER KEY_GENERIC_TYPE r) { throw new UnsupportedOperationException(); }
 #if PRIMITIVES
 		@Override
 		public boolean remIf(JAVA_PREDICATE filter){ throw new UnsupportedOperationException(); }
@@ -273,6 +311,26 @@ public class COLLECTIONS
 		public boolean equals(Object obj) { return c.equals(obj); }
 		@Override
 		public String toString() { return c.toString(); }
+		@Override
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) { c.forEach(input, action); }
+		@Override
+		public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) { return c.matchesAny(filter); }
+		@Override
+		public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) { return c.matchesNone(filter); }
+		@Override
+		public boolean matchesAll(PREDICATE KEY_GENERIC_TYPE filter) { return c.matchesAll(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) { return c.reduce(identity, operator); }
+#else
+		@Override
+		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); }
+		@Override
+		public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) { return c.findFirst(filter); }
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) { return c.count(filter); }
 	}
 	
 	/**
@@ -285,6 +343,8 @@ public class COLLECTIONS
 		
 		@Override
 		public boolean addAll(COLLECTION KEY_GENERIC_TYPE c) { throw new UnsupportedOperationException(); }
+		@Override
+		public boolean addAll(KEY_TYPE[] e, int offset, int length) { throw new UnsupportedOperationException(); }
 		
 #if !TYPE_OBJECT
 		@Override
@@ -356,5 +416,7 @@ public class COLLECTIONS
 		public void clear() {}
 		@Override
 		public int size() { return 0; }
+		@Override
+		public EmptyCollection KEY_GENERIC_TYPE copy() { return this; }
 	}
 }

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

@@ -1,19 +1,43 @@
 package speiger.src.collections.PACKAGE.utils;
 
+import java.util.Objects;
+#if TYPE_BOOLEAN
+import java.util.concurrent.atomic.AtomicInteger;
+#endif
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.function.Consumer;
+
 import speiger.src.collections.PACKAGE.collections.ITERABLE;
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.collections.ObjectIterable;
 import speiger.src.collections.objects.collections.ObjectIterator;
+import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.PACKAGE.functions.function.TO_OBJECT_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
 
 /**
  * A Helper class for Iterables
  */
 public class ITERABLES
 {
+	/**
+	 * 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)
+	 * @param <E> The return type.
+	 * @return a iterable that is mapped to a new result
+	 */
+	public static GENERIC_KEY_SPECIAL_BRACES<E> ObjectIterable<E> map(Iterable<? extends CLASS_TYPE> iterable, TO_OBJECT_FUNCTION KKS_GENERIC_TYPE<E> mapper) {
+		return new MappedIterable<>(wrap(iterable), mapper);
+	}
+	
 	/**
 	 * A Helper function that maps a Iterable into a new Type.
 	 * @param iterable the iterable that should be mapped
@@ -26,6 +50,19 @@ public class ITERABLES
 		return new MappedIterable<>(iterable, mapper);
 	}
 	
+	/**
+	 * A Helper function that flatMaps a Java-Iterable into a new Type.
+	 * @param iterable the iterable that should be flatMapped
+	 * @param mapper the function that decides what the result turns into.
+	 * @Type(T)
+	 * @param <V> The return type supplier.
+	 * @param <E> The return type.
+	 * @return a iterable that is flatMapped to a new result
+	 */
+	public static GENERIC_KEY_SPECIAL_BRACES<E, V extends Iterable<E>> ObjectIterable<E> flatMap(Iterable<? extends CLASS_TYPE> iterable, TO_OBJECT_FUNCTION KKS_GENERIC_TYPE<V> mapper) {
+		return new FlatMappedIterable<>(wrap(iterable), mapper);
+	}
+	
 	/**
 	 * A Helper function that flatMaps a Iterable into a new Type.
 	 * @param iterable the iterable that should be flatMapped
@@ -39,6 +76,18 @@ public class ITERABLES
 		return new FlatMappedIterable<>(iterable, mapper);
 	}
 	
+	/**
+	 * A Helper function that flatMaps a Java-Iterable into a new Type.
+	 * @param iterable the iterable that should be flatMapped
+	 * @param mapper the function that decides what the result turns into.
+	 * @Type(T)
+	 * @param <E> The return type.
+	 * @return a iterable that is flatMapped to a new result
+	 */
+	public static GENERIC_KEY_SPECIAL_BRACES<E> ObjectIterable<E> arrayFlatMap(Iterable<? extends CLASS_TYPE> iterable, TO_OBJECT_FUNCTION KKS_GENERIC_TYPE<E[]> mapper) {
+		return new FlatMappedArrayIterable<>(wrap(iterable), mapper);
+	}
+	
 	/**
 	 * A Helper function that flatMaps a Iterable into a new Type.
 	 * @param iterable the iterable that should be flatMapped
@@ -51,6 +100,17 @@ public class ITERABLES
 		return new FlatMappedArrayIterable<>(iterable, mapper);
 	}
 	
+	/**
+	 * A Helper function that filters out all desired elements from a Java-Iterable
+	 * @param iterable that should be filtered.
+	 * @param filter the filter that decides that should be let through
+	 * @Type(T)
+	 * @return a filtered iterable
+	 */
+	public static GENERIC_KEY_BRACES ITERABLE KEY_GENERIC_TYPE filter(Iterable<? extends CLASS_TYPE> iterable, PREDICATE KEY_GENERIC_TYPE filter) {
+		return new FilteredIterableBRACES(wrap(iterable), filter);
+	}
+	
 	/**
 	 * A Helper function that filters out all desired elements
 	 * @param iterable that should be filtered.
@@ -62,6 +122,106 @@ public class ITERABLES
 		return new FilteredIterableBRACES(iterable, filter);
 	}
 	
+	/**
+	 * A Helper function that filters out all duplicated elements.
+	 * @param iterable that should be distinct
+	 * @Type(T)
+	 * @return a distinct iterable
+	 */
+	public static GENERIC_KEY_BRACES ITERABLE KEY_GENERIC_TYPE distinct(ITERABLE KEY_GENERIC_TYPE iterable) {
+		return new DistinctIterableBRACES(iterable);
+	}
+	
+	/**
+	 * A Helper function that filters out all duplicated elements from a Java Iterable.
+	 * @param iterable that should be distinct
+	 * @Type(T)
+	 * @return a distinct iterable
+	 */
+	public static GENERIC_KEY_BRACES ITERABLE KEY_GENERIC_TYPE distinct(Iterable<? extends CLASS_TYPE> iterable) {
+		return new DistinctIterableBRACES(wrap(iterable));
+	}
+	
+	/**
+	 * A Helper function that hard limits the Iterable to a specific size
+	 * @param iterable that should be limited
+	 * @param limit the amount of elements it should be limited to
+	 * @Type(T)
+	 * @return a limited iterable
+	 */
+	public static GENERIC_KEY_BRACES ITERABLE KEY_GENERIC_TYPE limit(ITERABLE KEY_GENERIC_TYPE iterable, long limit) {
+		return new LimitedIterableBRACES(iterable, limit);
+	}
+	
+	/**
+	 * A Helper function that hard limits the Iterable to a specific size from a Java Iterable
+	 * @param iterable that should be limited
+	 * @param limit the amount of elements it should be limited to
+	 * @Type(T)
+	 * @return a limited iterable
+	 */
+	public static GENERIC_KEY_BRACES ITERABLE KEY_GENERIC_TYPE limit(Iterable<? extends CLASS_TYPE> iterable, long limit) {
+		return new LimitedIterableBRACES(wrap(iterable), limit);
+	}
+	
+	/**
+	 * A Helper function that allows to preview the result of a Iterable.
+	 * @param iterable that should be peeked at
+	 * @param action callback that receives the value before the iterable returns it
+	 * @Type(T)
+	 * @return a peeked iterable
+	 */
+	public static GENERIC_KEY_BRACES ITERABLE KEY_GENERIC_TYPE peek(ITERABLE KEY_GENERIC_TYPE iterable, CONSUMER KEY_GENERIC_TYPE action) {
+		return new PeekIterableBRACES(iterable, action);
+	}
+	
+	/**
+	 * A Helper function that allows to preview the result of a Iterable from a Java Iterable
+	 * @param iterable that should be peeked at
+	 * @param action callback that receives the value before the iterable returns it
+	 * @Type(T)
+	 * @return a peeked iterable
+	 */
+	public static GENERIC_KEY_BRACES ITERABLE KEY_GENERIC_TYPE peek(Iterable<? extends CLASS_TYPE> iterable, CONSUMER KEY_GENERIC_TYPE action) {
+		return new PeekIterableBRACES(wrap(iterable), action);
+	}
+	
+	/**
+	 * A Wrapper function that wraps a Java-Iterable into a Type Specific Iterable
+	 * @param iterable that should be wrapped
+	 * @Type(T)
+	 * @return a type specific iterable
+	 */
+	public static GENERIC_KEY_BRACES ITERABLE KEY_GENERIC_TYPE wrap(Iterable<? extends CLASS_TYPE> iterable) {
+		return new WrappedIterableBRACES(iterable);
+	}
+	
+	private static class WrappedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
+	{
+		Iterable<? extends CLASS_TYPE> iterable;
+		
+		public WrappedIterable(Iterable<? extends CLASS_TYPE> iterable) {
+			this.iterable = iterable;
+		}
+		
+		public ITERATOR KEY_GENERIC_TYPE iterator() {
+			return ITERATORS.wrap(iterable.iterator());
+		}
+		
+#if !TYPE_OBJECT
+		@Override
+		public void forEach(CONSUMER action) {
+			Objects.requireNonNull(action);
+			iterable.forEach(action);
+		}
+#else
+		public void forEach(Consumer<? super CLASS_TYPE> action) {
+			Objects.requireNonNull(action);
+			iterable.forEach(action);
+		}
+#endif
+	}
+	
 	private static class MappedIterable KSS_GENERIC_TYPE<E, T> implements ObjectIterable<T>
 	{
 		ITERABLE KEY_SPECIAL_GENERIC_TYPE<E> iterable;
@@ -75,6 +235,12 @@ public class ITERABLES
 		public ObjectIterator<T> iterator() {
 			return ITERATORS.map(iterable.iterator(), mapper);
 		}
+		
+		@Override
+		public void forEach(Consumer<? super T> action) {
+			Objects.requireNonNull(action);
+			iterable.forEach(E -> action.accept(mapper.GET_VALUE(E)));
+		}
 	}
 	
 	private static class FlatMappedIterable KSS_GENERIC_TYPE<E, T,[SPACE]V extends Iterable<T>> implements ObjectIterable<T>
@@ -91,6 +257,13 @@ public class ITERABLES
 		public ObjectIterator<T> iterator() {
 			return ITERATORS.flatMap(iterable.iterator(), mapper);
 		}
+		
+		@Override
+		public void forEach(Consumer<? super T> action) {
+			Objects.requireNonNull(action);
+			iterable.forEach(E -> mapper.GET_VALUE(E).forEach(action));
+		}
+		
 	}
 	
 	private static class FlatMappedArrayIterable KSS_GENERIC_TYPE<E, T> implements ObjectIterable<T>
@@ -107,6 +280,15 @@ public class ITERABLES
 		public ObjectIterator<T> iterator() {
 			return ITERATORS.arrayFlatMap(iterable.iterator(), mapper);
 		}
+		
+		@Override
+		public void forEach(Consumer<? super T> action) {
+			Objects.requireNonNull(action);
+			iterable.forEach(E -> {
+				T[] array = mapper.GET_VALUE(E);
+				for(int i = 0,m=array.length;i<m;action.accept(array[i++]));
+			});
+		}
 	}
 	
 	private static class FilteredIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
@@ -123,5 +305,124 @@ public class ITERABLES
 		public ITERATOR KEY_GENERIC_TYPE iterator() {
 			return ITERATORS.filter(iterable.iterator(), filter);
 		}
+		
+#if !TYPE_OBJECT
+		@Override
+		public void forEach(CONSUMER action) {
+			Objects.requireNonNull(action);
+			iterable.forEach(T -> { if(!filter.TEST_VALUE(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); } );
+		}
+#endif
+	}
+	
+	private static class LimitedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
+	{
+		ITERABLE KEY_GENERIC_TYPE iterable;
+		long limit;
+		
+		public LimitedIterable(ITERABLE KEY_GENERIC_TYPE iterable, long limit) {
+			this.iterable = iterable;
+			this.limit = limit;
+		}
+		
+		@Override
+		public ITERATOR KEY_GENERIC_TYPE iterator() {
+			return ITERATORS.limit(iterable.iterator(), limit);
+		}
+		
+#if !TYPE_OBJECT
+		@Override
+		public void forEach(CONSUMER action) {
+			Objects.requireNonNull(action);
+			AtomicLong counter = new AtomicLong();
+			iterable.forEach(T -> {
+				if(counter.get() >= limit) return;
+				counter.incrementAndGet();
+				action.accept(T);
+			});
+		}
+#else
+		public void forEach(Consumer<? super CLASS_TYPE> action) {
+			Objects.requireNonNull(action);
+			AtomicLong counter = new AtomicLong();
+			iterable.forEach(T -> {
+				if(counter.get() >= limit) return;
+				counter.incrementAndGet();
+				action.accept(T);
+			});
+		}
+#endif
+	}
+	
+	private static class DistinctIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
+	{
+		ITERABLE KEY_GENERIC_TYPE iterable;
+		
+		public DistinctIterable(ITERABLE KEY_GENERIC_TYPE iterable) {
+			this.iterable = iterable;
+		}
+		
+		@Override
+		public ITERATOR KEY_GENERIC_TYPE iterator() {
+			return ITERATORS.distinct(iterable.iterator());
+		}
+		
+#if !TYPE_OBJECT
+		@Override
+		public void forEach(CONSUMER action) {
+			Objects.requireNonNull(action);
+#if TYPE_BOOLEAN
+			AtomicInteger result = new AtomicInteger();
+			iterable.forEach(T -> {
+				if(((result.get() & (T ? 2 : 1)) != 0)) return;
+				result.getAndAdd(T ? 2 : 1);
+				action.accept(T);
+			});
+#else
+			SET KEY_GENERIC_TYPE filtered = new HASH_SETBRACES();
+			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();
+			iterable.forEach(T -> { if(filtered.add(T)) action.accept(T); });
+		}
+#endif
+	}
+	
+	private static class PeekIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
+	{
+		ITERABLE KEY_GENERIC_TYPE iterable;
+		CONSUMER KEY_GENERIC_TYPE action;
+		
+		public PeekIterable(ITERABLE KEY_GENERIC_TYPE iterable, CONSUMER KEY_GENERIC_TYPE action) {
+			this.iterable = iterable;
+			this.action = action;
+		}
+		
+		@Override
+		public ITERATOR KEY_GENERIC_TYPE iterator() {
+			return ITERATORS.peek(iterable.iterator(), action);
+		}
+		
+#if !TYPE_OBJECT
+		@Override
+		public void forEach(CONSUMER action) {
+			Objects.requireNonNull(action);
+			iterable.forEach(this.action.andThen(action));
+		}
+#else
+		public void forEach(Consumer<? super CLASS_TYPE> action) {
+			Objects.requireNonNull(action);
+			iterable.forEach(this.action.andThen(action));
+		}
+#endif
 	}
 }

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

@@ -2,11 +2,15 @@ package speiger.src.collections.PACKAGE.utils;
 
 import java.util.Iterator;
 import java.util.NoSuchElementException;
+#if TYPE_OBJECT
+import java.util.function.CONSUMER;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 #if !TYPE_OBJECT
 import speiger.src.collections.objects.collections.ObjectIterator;
 import speiger.src.collections.objects.utils.ObjectIterators;
+import speiger.src.collections.PACKAGE.functions.CONSUMER;
 #endif
 import speiger.src.collections.PACKAGE.functions.function.TO_OBJECT_FUNCTION;
 import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
@@ -15,6 +19,10 @@ import speiger.src.collections.PACKAGE.lists.LIST;
 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
 
 /**
  * A Helper class for Iterators
@@ -89,6 +97,18 @@ public class ITERATORS
 		return iterator instanceof UnmodifiableListIterator ? iterator : new UnmodifiableListIteratorBRACES(iterator);
 	}
 	
+	/**
+	 * 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)
+	 * @param <E> The return type.
+	 * @return a iterator that is mapped to a new result
+	 */
+	public static GENERIC_KEY_SPECIAL_BRACES<E> ObjectIterator<E> map(Iterator<? extends CLASS_TYPE> iterator, TO_OBJECT_FUNCTION KKS_GENERIC_TYPE<E> mapper) {
+		return new MappedIterator<>(wrap(iterator), mapper);
+	}
+	
 	/**
 	 * A Helper function that maps a Iterator into a new Type.
 	 * @param iterator that should be mapped
@@ -101,6 +121,19 @@ public class ITERATORS
 		return new MappedIterator<>(iterator, mapper);
 	}
 	
+	/**
+	 * A Helper function that flatMaps a Java-Iterator into a new Type.
+	 * @param iterator that should be flatMapped
+	 * @param mapper the function that decides what the result turns into.
+	 * @Type(T)
+	 * @param <V> The return type supplier.
+	 * @param <E> The return type.
+	 * @return a iterator that is flatMapped to a new result
+	 */
+	public static GENERIC_KEY_SPECIAL_BRACES<E, V extends Iterable<E>> ObjectIterator<E> flatMap(Iterator<? extends CLASS_TYPE> iterator, TO_OBJECT_FUNCTION KKS_GENERIC_TYPE<V> mapper) {
+		return new FlatMappedIterator<>(wrap(iterator), mapper);
+	}
+	
 	/**
 	 * A Helper function that flatMaps a Iterator into a new Type.
 	 * @param iterator that should be flatMapped
@@ -114,6 +147,18 @@ public class ITERATORS
 		return new FlatMappedIterator<>(iterator, mapper);
 	}
 	
+	/**
+	 * A Helper function that flatMaps a Java-Iterator into a new Type.
+	 * @param iterator that should be flatMapped
+	 * @param mapper the function that decides what the result turns into.
+	 * @Type(T)
+	 * @param <E> The return type.
+	 * @return a iterator that is flatMapped to a new result
+	 */
+	public static GENERIC_KEY_SPECIAL_BRACES<E> ObjectIterator<E> arrayFlatMap(Iterator<? extends CLASS_TYPE> iterator, TO_OBJECT_FUNCTION KKS_GENERIC_TYPE<E[]> mapper) {
+		return new FlatMappedArrayIterator<>(wrap(iterator), mapper);
+	}
+	
 	/**
 	 * A Helper function that flatMaps a Iterator into a new Type.
 	 * @param iterator that should be flatMapped
@@ -126,6 +171,17 @@ public class ITERATORS
 		return new FlatMappedArrayIterator<>(iterator, mapper);
 	}
 	
+	/**
+	 * A Helper function that filters out all desired elements from a Java-Iterator
+	 * @param iterator that should be filtered.
+	 * @param filter the filter that decides that should be let through
+	 * @Type(T)
+	 * @return a filtered iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE filter(Iterator<? extends CLASS_TYPE> iterator, PREDICATE KEY_GENERIC_TYPE filter) {
+		return new FilteredIteratorBRACES(wrap(iterator), filter);
+	}
+	
 	/**
 	 * A Helper function that filters out all desired elements
 	 * @param iterator that should be filtered.
@@ -137,6 +193,70 @@ public class ITERATORS
 		return new FilteredIteratorBRACES(iterator, filter);
 	}
 	
+	/**
+	 * A Helper function that filters out all duplicated elements.
+	 * @param iterator that should be distinct
+	 * @Type(T)
+	 * @return a distinct iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE distinct(ITERATOR KEY_GENERIC_TYPE iterator) {
+		return new DistinctIteratorBRACES(iterator);
+	}
+	
+	/**
+	 * A Helper function that filters out all duplicated elements from a Java Iterator.
+	 * @param iterator that should be distinct
+	 * @Type(T)
+	 * @return a distinct iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE distinct(Iterator<? extends CLASS_TYPE> iterator) {
+		return new DistinctIteratorBRACES(wrap(iterator));
+	}
+	
+	/**
+	 * A Helper function that hard limits the Iterator to a specific size
+	 * @param iterator that should be limited
+	 * @param limit the amount of elements it should be limited to
+	 * @Type(T)
+	 * @return a limited iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE limit(ITERATOR KEY_GENERIC_TYPE iterator, long limit) {
+		return new LimitedIteratorBRACES(iterator, limit);
+	}
+	
+	/**
+	 * A Helper function that hard limits the Iterator to a specific size from a Java Iterator
+	 * @param iterator that should be limited
+	 * @param limit the amount of elements it should be limited to
+	 * @Type(T)
+	 * @return a limited iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE limit(Iterator<? extends CLASS_TYPE> iterator, long limit) {
+		return new LimitedIteratorBRACES(wrap(iterator), limit);
+	}
+	
+	/**
+	 * A Helper function that allows to preview the result of a Iterator.
+	 * @param iterator that should be peeked at
+	 * @param action callback that receives the value before the iterator returns it
+	 * @Type(T)
+	 * @return a peeked iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE peek(ITERATOR KEY_GENERIC_TYPE iterator, CONSUMER KEY_GENERIC_TYPE action) {
+		return new PeekIteratorBRACES(iterator, action);
+	}
+	
+	/**
+	 * A Helper function that allows to preview the result of a Iterator  from a Java Iterator
+	 * @param iterator that should be peeked at
+	 * @param action callback that receives the value before the iterator returns it
+	 * @Type(T)
+	 * @return a peeked iterator
+	 */
+	public static GENERIC_KEY_BRACES ITERATOR KEY_GENERIC_TYPE peek(Iterator<? extends CLASS_TYPE> iterator, CONSUMER KEY_GENERIC_TYPE action) {
+		return new PeekIteratorBRACES(wrap(iterator), action);
+	}
+	
 	/**
 	 * Helper function to convert a Object Iterator into a Primitive Iterator
 	 * @param iterator that should be converted to a unboxing iterator
@@ -751,6 +871,57 @@ public class ITERATORS
 		}
 	}
 	
+	private static class DistinctIterator KEY_GENERIC_TYPE implements ITERATOR KEY_GENERIC_TYPE
+	{
+		ITERATOR KEY_GENERIC_TYPE iterator;
+#if TYPE_BOOLEAN
+		int filtered;
+#else
+		SET KEY_GENERIC_TYPE filtered = new HASH_SETBRACES();
+#endif
+		KEY_TYPE lastFound;
+		boolean foundNext = false;
+		
+		public DistinctIterator(ITERATOR KEY_GENERIC_TYPE iterator) {
+			this.iterator = iterator;
+		}
+		
+		void compute() {
+			if(foundNext) return;
+#if TYPE_BOOLEAN
+			if(filtered == 3) return;
+#endif
+			while(iterator.hasNext()) {
+				lastFound = iterator.NEXT();
+#if TYPE_BOOLEAN
+				if((filtered & (lastFound ? 1 : 2)) == 0) {
+					filtered |= (lastFound ? 1 : 2);
+					foundNext = true;
+					break;
+				}
+#else
+				if(filtered.add(lastFound)) {
+					foundNext = true;
+					break;
+				}
+#endif
+			}
+		}
+		
+		@Override
+		public boolean hasNext() {
+			compute();
+			return foundNext;
+		}
+		
+		@Override
+		public KEY_TYPE NEXT() {
+			if(!hasNext()) throw new IllegalStateException("End of Iterator");
+			foundNext = false;
+			return lastFound;
+		}
+	}
+	
 	private static class FilteredIterator KEY_GENERIC_TYPE implements ITERATOR KEY_GENERIC_TYPE
 	{
 		ITERATOR KEY_GENERIC_TYPE iterator;
@@ -787,4 +958,51 @@ public class ITERATORS
 			return lastFound;
 		}
 	}
+	
+	private static class LimitedIterator KEY_GENERIC_TYPE implements ITERATOR KEY_GENERIC_TYPE
+	{
+		ITERATOR KEY_GENERIC_TYPE iterator;
+		long limit;
+		
+		public LimitedIterator(ITERATOR KEY_GENERIC_TYPE iterator, long limit) {
+			this.iterator = iterator;
+			this.limit = limit;
+		}
+		
+		@Override
+		public boolean hasNext() {
+			return limit > 0 && iterator.hasNext();
+		}
+		
+		@Override
+		public KEY_TYPE NEXT() {
+			if(!hasNext()) throw new IllegalStateException("End of Iterator");
+			limit--;
+			return iterator.NEXT();
+		}
+	}
+	
+	private static class PeekIterator KEY_GENERIC_TYPE implements ITERATOR KEY_GENERIC_TYPE
+	{
+		ITERATOR KEY_GENERIC_TYPE iterator;
+		CONSUMER KEY_GENERIC_TYPE action;
+		
+		public PeekIterator(ITERATOR KEY_GENERIC_TYPE iterator, CONSUMER KEY_GENERIC_TYPE action) {
+			this.iterator = iterator;
+			this.action = action;
+		}
+		
+		@Override
+		public boolean hasNext() {
+			return iterator.hasNext();
+		}
+		
+		@Override
+		public KEY_TYPE NEXT() {
+			if(!hasNext()) throw new IllegalStateException("End of Iterator");
+			KEY_TYPE result = iterator.NEXT();
+			action.accept(result);
+			return result;
+		}
+	}
 }

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

@@ -5,6 +5,9 @@ import java.util.Objects;
 import java.util.Random;
 import java.util.RandomAccess;
 import java.util.function.Consumer;
+#if PRIMITIVES
+import java.nio.JAVA_BUFFER;
+#endif
 
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 #if !TYPE_OBJECT
@@ -197,6 +200,8 @@ public class LISTS
 		@Override
 		public KEY_TYPE REMOVE(int index) { throw new UnsupportedOperationException(); }
 		@Override
+		public KEY_TYPE swapRemove(int index) { throw new UnsupportedOperationException(); }
+		@Override
 		public void addElements(int from, KEY_TYPE[] a, int offset, int length) { throw new UnsupportedOperationException(); }
 		@Override
 		public KEY_TYPE[] getElements(int from, KEY_TYPE[] a, int offset, int length) {
@@ -204,6 +209,10 @@ public class LISTS
 			a[offset] = element;
 			return a;
 		}
+#if PRIMITIVES
+		@Override
+		public void fillBuffer(JAVA_BUFFER buffer) { buffer.put(element); }
+#endif
 		
 		@Override
 		public void removeElements(int from, int to) { throw new UnsupportedOperationException(); }
@@ -216,6 +225,9 @@ public class LISTS
 #endif
 		@Override
 		public int size() { return 1; }
+		
+		@Override
+		public SingletonList KEY_GENERIC_TYPE copy() { return new SingletonListBRACES(element); }
 	}
 	
 	private static class SynchronizedArrayList KEY_GENERIC_TYPE extends SynchronizedList KEY_GENERIC_TYPE implements IARRAY KEY_GENERIC_TYPE
@@ -321,6 +333,12 @@ public class LISTS
 		@Override
 		public KEY_TYPE REMOVE(int index) { synchronized(mutex) { return l.REMOVE(index); } }
 		
+		@Override
+		public KEY_TYPE swapRemove(int index) { synchronized(mutex) { return l.swapRemove(index); } }
+		
+		@Override
+		public boolean REMOVE_SWAP(KEY_TYPE e) { synchronized(mutex) { return l.REMOVE_SWAP(e); } }
+		
 		@Override
 		@Primitive
 		public int indexOf(Object e) { synchronized(mutex) { return l.indexOf(e); } }
@@ -354,6 +372,9 @@ public class LISTS
 		@Override
 		public <K> K[] extractElements(int from, int to, Class<K> clz) { synchronized(mutex) { return l.extractElements(from, to, clz); } }
 		
+#endif
+#if PRIMITIVES
+		public void fillBuffer(JAVA_BUFFER buffer) { synchronized(mutex) { l.fillBuffer(buffer); } }
 #endif
 		@Override
 		public LIST_ITERATOR KEY_GENERIC_TYPE listIterator() {
@@ -367,11 +388,14 @@ public class LISTS
 		
 		@Override
 		public LIST KEY_GENERIC_TYPE subList(int from, int to) {
-			return synchronize(l.subList(from, to));
+			return LISTS.synchronize(l.subList(from, to));
 		}
 		
 		@Override
 		public void size(int size) { synchronized(mutex) { l.size(size); } }
+		
+		@Override
+		public LIST KEY_GENERIC_TYPE copy() { synchronized(mutex) { return l.copy(); } }
 	}
 	
 	private static class UnmodifiableRandomList KEY_GENERIC_TYPE extends UnmodifiableList KEY_GENERIC_TYPE implements RandomAccess 
@@ -428,6 +452,12 @@ public class LISTS
 		@Override
 		public KEY_TYPE REMOVE(int index) { throw new UnsupportedOperationException(); }
 		
+		@Override
+		public KEY_TYPE swapRemove(int index) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public boolean REMOVE_SWAP(KEY_TYPE e) { throw new UnsupportedOperationException(); }
+		
 		@Override
 		@Primitive
 		public int indexOf(Object e) { return l.indexOf(e); }
@@ -463,6 +493,10 @@ public class LISTS
 		@Override
 		public <K> K[] extractElements(int from, int to, Class<K> clz) { throw new UnsupportedOperationException(); }
 		
+#endif
+#if PRIMITIVES
+		public void fillBuffer(JAVA_BUFFER buffer) { l.fillBuffer(buffer); }
+		
 #endif
 		@Override
 		public LIST_ITERATOR KEY_GENERIC_TYPE listIterator() {
@@ -476,11 +510,14 @@ public class LISTS
 		
 		@Override
 		public LIST KEY_GENERIC_TYPE subList(int from, int to) {
-			return unmodifiable(l.subList(from, to));
+			return LISTS.unmodifiable(l.subList(from, to));
 		}
 		
 		@Override
 		public void size(int size) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public LIST KEY_GENERIC_TYPE copy() { return l.copy(); }
 	}
 	
 	private static class EmptyList KEY_GENERIC_TYPE extends COLLECTIONS.EmptyCollection KEY_GENERIC_TYPE implements LIST KEY_GENERIC_TYPE
@@ -514,6 +551,12 @@ public class LISTS
 		@Override
 		public KEY_TYPE REMOVE(int index) { throw new UnsupportedOperationException(); }
 		
+		@Override
+		public KEY_TYPE swapRemove(int index) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public boolean REMOVE_SWAP(KEY_TYPE e) { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public int indexOf(Object e) { return -1; }
 		
@@ -563,5 +606,8 @@ public class LISTS
 		
 		@Override
 		public void size(int size) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public EmptyList KEY_GENERIC_TYPE copy() { return this; }
 	}
 }

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

@@ -1,15 +1,23 @@
 package speiger.src.collections.PACKAGE.utils;
 
 #if TYPE_OBJECT
+import java.util.Collection;
 import java.util.Comparator;
+import java.util.function.Consumer;
 #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
 import speiger.src.collections.PACKAGE.queues.PRIORITY_DEQUEUE;
 import speiger.src.collections.PACKAGE.queues.PRIORITY_QUEUE;
+#if !TYPE_OBJECT
+import speiger.src.collections.PACKAGE.functions.CONSUMER;
+#endif
+import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
+import speiger.src.collections.objects.functions.consumer.BI_FROM_OBJECT_CONSUMER;
 
 /**
  * A Helper class for PriorityQueues
@@ -86,6 +94,14 @@ public class PRIORITY_QUEUES
 		public void clear() { synchronized(mutex) { queue.clear(); } }
 		@Override
 		public void enqueue(KEY_TYPE e) { synchronized(mutex) { queue.enqueue(e); } }
+		@Override
+		public void enqueueAll(KEY_TYPE[] e, int offset, int length) { synchronized(mutex) { queue.enqueueAll(e, offset, length); } }
+		@Override
+		public void enqueueAll(COLLECTION KEY_GENERIC_TYPE c) { synchronized(mutex) { queue.enqueueAll(c); } }
+#if TYPE_OBJECT
+		@Override
+		public void enqueueAll(Collection<? extends CLASS_TYPE> c) { synchronized(mutex) { queue.enqueueAll(c); } }
+#endif
 		@Override
 		public KEY_TYPE dequeue() { synchronized(mutex) { return queue.dequeue(); } }
 		@Override
@@ -100,6 +116,22 @@ public class PRIORITY_QUEUES
 		public COMPARATOR KEY_SUPER_GENERIC_TYPE comparator() { synchronized(mutex) { return queue.comparator(); } }
 		@Override
 		public GENERIC_SPECIAL_KEY_BRACES<E> KEY_SPECIAL_TYPE[] TO_ARRAY(KEY_SPECIAL_TYPE[] input) { synchronized(mutex) { return queue.TO_ARRAY(input); } }
+		@Override
+		public PRIORITY_QUEUE KEY_GENERIC_TYPE copy() { synchronized(mutex) { return queue.copy(); } }
+		@Override
+		public void forEach(CONSUMER KEY_SUPER_GENERIC_TYPE action) { synchronized(mutex) { queue.forEach(action); } }
+		@Override
+		public <E> void forEach(E input, BI_FROM_OBJECT_CONSUMER KSK_GENERIC_TYPE<E> action) { synchronized(mutex) { queue.forEach(input, action); } }
+		@Override
+		public boolean matchesAny(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return queue.matchesAny(filter); } }
+		@Override
+		public boolean matchesNone(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return queue.matchesNone(filter); } }
+		@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); } }
+		@Override
+		public int count(PREDICATE KEY_GENERIC_TYPE filter) { synchronized(mutex) { return queue.count(filter); } }
 	}
 	
 	/**
@@ -121,7 +153,17 @@ public class PRIORITY_QUEUES
 		
 		@Override
 		public void enqueueFirst(KEY_TYPE e) { synchronized(mutex) { dequeue.enqueueFirst(e); } }
+		@Override
+		public void enqueueAllFirst(KEY_TYPE[] e, int offset, int length) { synchronized(mutex) { dequeue.enqueueAllFirst(e, offset, length); } }
+		@Override
+		public void enqueueAllFirst(COLLECTION KEY_GENERIC_TYPE c) { synchronized(mutex) { dequeue.enqueueAllFirst(c); } }
+#if TYPE_OBJECT
+		@Override
+		public void enqueueAllFirst(Collection<? extends CLASS_TYPE> c) { synchronized(mutex) { dequeue.enqueueAllFirst(c); } }
+#endif
 		@Override
 		public KEY_TYPE dequeueLast() { synchronized(mutex) { return dequeue.dequeueLast(); } }
+		@Override
+		public PRIORITY_DEQUEUE KEY_GENERIC_TYPE copy() { synchronized(mutex) { return dequeue.copy(); } }
 	}
 }

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

@@ -190,6 +190,9 @@ public class SETS
 		}
 		@Override
 		public int size() { return 1; }
+		
+		@Override
+		public SingletonSet KEY_GENERIC_TYPE copy() { return new SingletonSetBRACES(element); }
 	}
 	
 	private static class EmptySet KEY_GENERIC_TYPE extends EmptyCollection KEY_GENERIC_TYPE implements SET KEY_GENERIC_TYPE
@@ -198,6 +201,8 @@ public class SETS
 		@Override
 		public boolean remove(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 #endif
+		@Override
+		public EmptySet KEY_GENERIC_TYPE copy() { return this; }
 	}
 	
 #if !TYPE_BOOLEAN
@@ -246,28 +251,31 @@ public class SETS
 		
 #endif
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, boolean fromInclusive, KEY_TYPE toElement, boolean toInclusive) { return unmodifiable(n.subSet(fromElement, fromInclusive, toElement, toInclusive)); }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 		
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement, boolean inclusive) { return unmodifiable(n.headSet(toElement, inclusive)); }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, boolean fromInclusive, KEY_TYPE toElement, boolean toInclusive) { return SETS.unmodifiable(n.subSet(fromElement, fromInclusive, toElement, toInclusive)); }
 		
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement, boolean inclusive) { return unmodifiable(n.tailSet(fromElement, inclusive)); }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement, boolean inclusive) { return SETS.unmodifiable(n.headSet(toElement, inclusive)); }
+
+		@Override
+		public NAVIGABLE_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement, boolean inclusive) { return SETS.unmodifiable(n.tailSet(fromElement, inclusive)); }
 
 		@Override
 		public BI_ITERATOR KEY_GENERIC_TYPE descendingIterator() { return ITERATORS.unmodifiable(n.descendingIterator()); }
 
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE descendingSet() { return unmodifiable(n.descendingSet()); }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE descendingSet() { return SETS.unmodifiable(n.descendingSet()); }
 		
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, KEY_TYPE toElement) { return unmodifiable(n.subSet(fromElement, toElement)); }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, KEY_TYPE toElement) { return SETS.unmodifiable(n.subSet(fromElement, toElement)); }
 		
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement) { return unmodifiable(n.headSet(toElement)); }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement) { return SETS.unmodifiable(n.headSet(toElement)); }
 		
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement) { return unmodifiable(n.tailSet(fromElement)); }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement) { return SETS.unmodifiable(n.tailSet(fromElement)); }
 	}
 	
 	private static class UnmodifiableSortedSet KEY_GENERIC_TYPE extends UnmodifiableSet KEY_GENERIC_TYPE implements SORTED_SET KEY_GENERIC_TYPE
@@ -301,13 +309,16 @@ public class SETS
 		public BI_ITERATOR KEY_GENERIC_TYPE iterator(KEY_TYPE fromElement) { return ITERATORS.unmodifiable(s.iterator(fromElement)); }
 		
 		@Override
-		public SORTED_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, KEY_TYPE toElement) { return unmodifiable(s.subSet(fromElement, toElement)); }
+		public SORTED_SET KEY_GENERIC_TYPE copy() { return s.copy(); }
 		
 		@Override
-		public SORTED_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement) { return unmodifiable(s.headSet(toElement)); }
+		public SORTED_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, KEY_TYPE toElement) { return SETS.unmodifiable(s.subSet(fromElement, toElement)); }
 		
 		@Override
-		public SORTED_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement) { return unmodifiable(s.tailSet(fromElement)); }
+		public SORTED_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement) { return SETS.unmodifiable(s.headSet(toElement)); }
+		
+		@Override
+		public SORTED_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement) { return SETS.unmodifiable(s.tailSet(fromElement)); }
 		
 		@Override
 		public KEY_TYPE FIRST_KEY() { return s.FIRST_KEY(); }
@@ -336,6 +347,9 @@ public class SETS
 			s = c;
 		}
 		
+		@Override
+		public SET KEY_GENERIC_TYPE copy() { return s.copy(); }
+		
 #if !TYPE_OBJECT
 		@Override
 		public boolean remove(KEY_TYPE o) { throw new UnsupportedOperationException(); }
@@ -413,28 +427,31 @@ public class SETS
 		
 #endif
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, boolean fromInclusive, KEY_TYPE toElement, boolean toInclusive) { synchronized(mutex) { return synchronize(n.subSet(fromElement, fromInclusive, toElement, toInclusive), mutex); } }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE copy() { synchronized(mutex) { return n.copy(); } }
 		
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement, boolean inclusive) { synchronized(mutex) { return synchronize(n.headSet(toElement, inclusive), mutex); } }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, boolean fromInclusive, KEY_TYPE toElement, boolean toInclusive) { synchronized(mutex) { return SETS.synchronize(n.subSet(fromElement, fromInclusive, toElement, toInclusive), mutex); } }
 
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement, boolean inclusive) { synchronized(mutex) { return synchronize(n.tailSet(fromElement, inclusive), mutex); } }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement, boolean inclusive) { synchronized(mutex) { return SETS.synchronize(n.headSet(toElement, inclusive), mutex); } }
+
+		@Override
+		public NAVIGABLE_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement, boolean inclusive) { synchronized(mutex) { return SETS.synchronize(n.tailSet(fromElement, inclusive), mutex); } }
 
 		@Override
 		public BI_ITERATOR KEY_GENERIC_TYPE descendingIterator() { synchronized(mutex) { return n.descendingIterator(); } }
 
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE descendingSet() { synchronized(mutex) { return synchronize(n.descendingSet(), mutex); } }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE descendingSet() { synchronized(mutex) { return SETS.synchronize(n.descendingSet(), mutex); } }
 		
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, KEY_TYPE toElement) { synchronized(mutex) { return synchronize(n.subSet(fromElement, toElement), mutex); } }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, KEY_TYPE toElement) { synchronized(mutex) { return SETS.synchronize(n.subSet(fromElement, toElement), mutex); } }
 
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement) { synchronized(mutex) { return synchronize(n.headSet(toElement), mutex); } }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement) { synchronized(mutex) { return SETS.synchronize(n.headSet(toElement), mutex); } }
 
 		@Override
-		public NAVIGABLE_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement) { synchronized(mutex) { return synchronize(n.tailSet(fromElement), mutex); } }
+		public NAVIGABLE_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement) { synchronized(mutex) { return SETS.synchronize(n.tailSet(fromElement), mutex); } }
 	}
 	
 	private static class SynchronizedSortedTrimSet KEY_GENERIC_TYPE extends SynchronizedSortedSet KEY_GENERIC_TYPE implements ITrimmable
@@ -494,13 +511,16 @@ public class SETS
 		public BI_ITERATOR KEY_GENERIC_TYPE iterator(KEY_TYPE fromElement) { synchronized(mutex) { return s.iterator(fromElement); } }
 		
 		@Override
-		public SORTED_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, KEY_TYPE toElement) { synchronized(mutex) { return synchronize(s.subSet(fromElement, toElement), mutex); } }
+		public SORTED_SET KEY_GENERIC_TYPE copy() { synchronized(mutex) { return s.copy(); } }
 		
 		@Override
-		public SORTED_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement) { synchronized(mutex) { return synchronize(s.headSet(toElement), mutex); } }
+		public SORTED_SET KEY_GENERIC_TYPE subSet(KEY_TYPE fromElement, KEY_TYPE toElement) { synchronized(mutex) { return SETS.synchronize(s.subSet(fromElement, toElement), mutex); } }
 
 		@Override
-		public SORTED_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement) { synchronized(mutex) { return synchronize(s.tailSet(fromElement), mutex); } }
+		public SORTED_SET KEY_GENERIC_TYPE headSet(KEY_TYPE toElement) { synchronized(mutex) { return SETS.synchronize(s.headSet(toElement), mutex); } }
+
+		@Override
+		public SORTED_SET KEY_GENERIC_TYPE tailSet(KEY_TYPE fromElement) { synchronized(mutex) { return SETS.synchronize(s.tailSet(fromElement), mutex); } }
 
 		@Override
 		public KEY_TYPE FIRST_KEY() { synchronized(mutex) { return s.FIRST_KEY(); } }
@@ -538,24 +558,21 @@ public class SETS
 	
 	private static class SynchronizedSet KEY_GENERIC_TYPE extends SynchronizedCollection KEY_GENERIC_TYPE implements SET KEY_GENERIC_TYPE
 	{
-#if !TYPE_OBJECT
 		SET KEY_GENERIC_TYPE s;
-#endif
 		
 		SynchronizedSet(SET KEY_GENERIC_TYPE c) {
 			super(c);
-#if !TYPE_OBJECT
 			s = c;
-#endif
 		}
 		
 		SynchronizedSet(SET KEY_GENERIC_TYPE c, Object mutex) {
 			super(c, mutex);
-#if !TYPE_OBJECT
 			s = c;
-#endif
 		}
 		
+		@Override
+		public SET KEY_GENERIC_TYPE copy() { synchronized(mutex) { return s.copy(); } }
+		
 #if !TYPE_OBJECT
 		@Override
 		public boolean remove(KEY_TYPE o) { synchronized(mutex) { return s.remove(o); } }

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

@@ -277,6 +277,8 @@ public class MAPS
 		@Override
 		public VALUE_TYPE getOrDefault(KEY_TYPE key, VALUE_TYPE defaultValue) { return EQUALS_KEY_TYPE(key, this.key) ? value : defaultValue; }
 #endif
+		@Override
+		public SingletonMap KEY_VALUE_GENERIC_TYPE copy() { return new SingletonMapKV_BRACES(key, value); }
 		@Override
 		public SET KEY_GENERIC_TYPE keySet() { 
 			if(keySet == null) keySet = SETS.singleton(key);
@@ -329,6 +331,8 @@ public class MAPS
 		public VALUE_COLLECTION VALUE_GENERIC_TYPE values() { return VALUE_COLLECTIONS.empty(); }
 		@Override
 		public ObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> ENTRY_SET() { return ObjectSets.empty(); }
+		@Override
+		public EmptyMap KEY_VALUE_GENERIC_TYPE copy() { return this; }
 	}
 	
 	/**
@@ -364,31 +368,31 @@ public class MAPS
 		}
 		
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE descendingMap() { return synchronize(map.descendingMap()); }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE descendingMap() { return MAPS.synchronize(map.descendingMap()); }
 		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE navigableKeySet() { return SETS.unmodifiable(map.navigableKeySet()); }
 		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE descendingKeySet() { return SETS.unmodifiable(map.descendingKeySet()); }
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() { return unmodifiable(map.firstEntry()); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE firstEntry() { return MAPS.unmodifiable(map.firstEntry()); }
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() { return unmodifiable(map.lastEntry()); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE lastEntry() { return MAPS.unmodifiable(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 NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, boolean fromInclusive, KEY_TYPE toKey, boolean toInclusive) { return unmodifiable(map.subMap(fromKey, fromInclusive, toKey, toInclusive)); }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, boolean fromInclusive, KEY_TYPE toKey, boolean toInclusive) { return MAPS.unmodifiable(map.subMap(fromKey, fromInclusive, toKey, toInclusive)); }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey, boolean inclusive) { return unmodifiable(map.headMap(toKey, inclusive)); }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey, boolean inclusive) { return MAPS.unmodifiable(map.headMap(toKey, inclusive)); }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey, boolean inclusive) { return unmodifiable(map.tailMap(fromKey, inclusive)); }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey, boolean inclusive) { return MAPS.unmodifiable(map.tailMap(fromKey, inclusive)); }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, KEY_TYPE toKey) { return unmodifiable(map.subMap(fromKey, toKey)); }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, KEY_TYPE toKey) { return MAPS.unmodifiable(map.subMap(fromKey, toKey)); }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey) { return unmodifiable(map.headMap(toKey)); }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey) { return MAPS.unmodifiable(map.headMap(toKey)); }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey) { return unmodifiable(map.tailMap(fromKey)); }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey) { return MAPS.unmodifiable(map.tailMap(fromKey)); }
 #if !TYPE_OBJECT
 		@Override
 		public void setDefaultMaxValue(KEY_TYPE e) { throw new UnsupportedOperationException(); }
@@ -408,13 +412,15 @@ public class MAPS
 		@Override
 		public KEY_TYPE ceilingKey(KEY_TYPE key) { return map.ceilingKey(key); }
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE lowerEntry(KEY_TYPE key) { return unmodifiable(map.lowerEntry(key)); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE lowerEntry(KEY_TYPE key) { return MAPS.unmodifiable(map.lowerEntry(key)); }
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE higherEntry(KEY_TYPE key) { return unmodifiable(map.higherEntry(key)); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE higherEntry(KEY_TYPE key) { return MAPS.unmodifiable(map.higherEntry(key)); }
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE floorEntry(KEY_TYPE key) { return unmodifiable(map.floorEntry(key)); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE floorEntry(KEY_TYPE key) { return MAPS.unmodifiable(map.floorEntry(key)); }
 		@Override
-		public MAP.Entry KEY_VALUE_GENERIC_TYPE ceilingEntry(KEY_TYPE key) { return unmodifiable(map.ceilingEntry(key)); }
+		public MAP.Entry KEY_VALUE_GENERIC_TYPE ceilingEntry(KEY_TYPE key) { return MAPS.unmodifiable(map.ceilingEntry(key)); }
+		@Override
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 	}
 	
 	/**
@@ -445,11 +451,11 @@ public class MAPS
 		@Override
 		public COMPARATOR KEY_GENERIC_TYPE comparator() { return map.comparator(); }
 		@Override
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, KEY_TYPE toKey) { return unmodifiable(map.subMap(fromKey, toKey)); }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, KEY_TYPE toKey) { return MAPS.unmodifiable(map.subMap(fromKey, toKey)); }
 		@Override
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey) { return unmodifiable(map.headMap(toKey)); }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey) { return MAPS.unmodifiable(map.headMap(toKey)); }
 		@Override
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey) { return unmodifiable(map.tailMap(fromKey)); }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey) { return MAPS.unmodifiable(map.tailMap(fromKey)); }
 		@Override
 		public KEY_TYPE FIRST_ENTRY_KEY() { return map.FIRST_ENTRY_KEY(); }
 		@Override
@@ -462,6 +468,8 @@ public class MAPS
 		public VALUE_TYPE FIRST_ENTRY_VALUE() { return map.FIRST_ENTRY_VALUE(); }
 		@Override
 		public VALUE_TYPE LAST_ENTRY_VALUE() { return map.LAST_ENTRY_VALUE(); }
+		@Override
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 	}
 	
 	/**
@@ -501,6 +509,8 @@ public class MAPS
 		@Override
 		public VALUE_TYPE getOrDefault(KEY_TYPE key, VALUE_TYPE defaultValue) { return map.getOrDefault(key, defaultValue); }
 #endif
+		@Override
+		public MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 		
 		@Override
 		public SET KEY_GENERIC_TYPE keySet() { 
@@ -538,7 +548,7 @@ public class MAPS
 		
 		@Override
 		public void forEach(Consumer<? super MAP.Entry KEY_VALUE_GENERIC_TYPE> action) {
-			s.forEach(T -> action.accept(unmodifiable(T)));
+			s.forEach(T -> action.accept(MAPS.unmodifiable(T)));
 		}
 		
 		@Override
@@ -548,7 +558,7 @@ public class MAPS
 				@Override
 				public boolean hasNext() { return iter.hasNext(); }
 				@Override
-				public MAP.Entry KEY_VALUE_GENERIC_TYPE next() { return unmodifiable(iter.next()); }
+				public MAP.Entry KEY_VALUE_GENERIC_TYPE next() { return MAPS.unmodifiable(iter.next()); }
 			};
 		}
 		
@@ -573,7 +583,7 @@ public class MAPS
 		}
 		
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE descendingMap() { synchronized(mutex) { return synchronize(map.descendingMap(), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE descendingMap() { synchronized(mutex) { return MAPS.synchronize(map.descendingMap(), mutex); } }
 		@Override
 		public NAVIGABLE_SET KEY_GENERIC_TYPE navigableKeySet() { synchronized(mutex) { return SETS.synchronize(map.navigableKeySet(), mutex); } }
 		@Override
@@ -587,17 +597,17 @@ public class MAPS
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE pollLastEntry() { synchronized(mutex) { return map.pollLastEntry(); } }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, boolean fromInclusive, KEY_TYPE toKey, boolean toInclusive) { synchronized(mutex) { return synchronize(map.subMap(fromKey, fromInclusive, toKey, toInclusive), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, boolean fromInclusive, KEY_TYPE toKey, boolean toInclusive) { synchronized(mutex) { return MAPS.synchronize(map.subMap(fromKey, fromInclusive, toKey, toInclusive), mutex); } }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey, boolean inclusive) { synchronized(mutex) { return synchronize(map.headMap(toKey, inclusive), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey, boolean inclusive) { synchronized(mutex) { return MAPS.synchronize(map.headMap(toKey, inclusive), mutex); } }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey, boolean inclusive) { synchronized(mutex) { return synchronize(map.tailMap(fromKey, inclusive), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey, boolean inclusive) { synchronized(mutex) { return MAPS.synchronize(map.tailMap(fromKey, inclusive), mutex); } }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, KEY_TYPE toKey) { synchronized(mutex) { return synchronize(map.subMap(fromKey, toKey), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, KEY_TYPE toKey) { synchronized(mutex) { return MAPS.synchronize(map.subMap(fromKey, toKey), mutex); } }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey) { synchronized(mutex) { return synchronize(map.headMap(toKey), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey) { synchronized(mutex) { return MAPS.synchronize(map.headMap(toKey), mutex); } }
 		@Override
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey) { synchronized(mutex) { return synchronize(map.tailMap(fromKey), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey) { synchronized(mutex) { return MAPS.synchronize(map.tailMap(fromKey), mutex); } }
 		@Override
 		public KEY_TYPE lowerKey(KEY_TYPE key) { synchronized(mutex) { return map.lowerKey(key); } }
 		@Override
@@ -614,25 +624,27 @@ public class MAPS
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE floorEntry(KEY_TYPE key) { synchronized(mutex) { return map.floorEntry(key); } }
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE ceilingEntry(KEY_TYPE key) { synchronized(mutex) { return map.ceilingEntry(key); } }
-#if !TYPE_OBJECT
+		@Override
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		#if !TYPE_OBJECT
 		@Override
 		@Deprecated
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(CLASS_TYPE fromKey, boolean fromInclusive, CLASS_TYPE toKey, boolean toInclusive) { synchronized(mutex) { return synchronize(map.subMap(fromKey, fromInclusive, toKey, toInclusive), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(CLASS_TYPE fromKey, boolean fromInclusive, CLASS_TYPE toKey, boolean toInclusive) { synchronized(mutex) { return MAPS.synchronize(map.subMap(fromKey, fromInclusive, toKey, toInclusive), mutex); } }
 		@Override
 		@Deprecated
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(CLASS_TYPE toKey, boolean inclusive) { synchronized(mutex) { return synchronize(map.headMap(toKey, inclusive), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(CLASS_TYPE toKey, boolean inclusive) { synchronized(mutex) { return MAPS.synchronize(map.headMap(toKey, inclusive), mutex); } }
 		@Override
 		@Deprecated
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(CLASS_TYPE fromKey, boolean inclusive) { synchronized(mutex) { return synchronize(map.tailMap(fromKey, inclusive), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(CLASS_TYPE fromKey, boolean inclusive) { synchronized(mutex) { return MAPS.synchronize(map.tailMap(fromKey, inclusive), mutex); } }
 		@Override
 		@Deprecated
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(CLASS_TYPE fromKey, CLASS_TYPE toKey) { synchronized(mutex) { return synchronize(map.subMap(fromKey, toKey), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE subMap(CLASS_TYPE fromKey, CLASS_TYPE toKey) { synchronized(mutex) { return MAPS.synchronize(map.subMap(fromKey, toKey), mutex); } }
 		@Override
 		@Deprecated
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(CLASS_TYPE toKey) { synchronized(mutex) { return synchronize(map.headMap(toKey), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE headMap(CLASS_TYPE toKey) { synchronized(mutex) { return MAPS.synchronize(map.headMap(toKey), mutex); } }
 		@Override
 		@Deprecated
-		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(CLASS_TYPE fromKey) { synchronized(mutex) { return synchronize(map.tailMap(fromKey), mutex); } }
+		public NAVIGABLE_MAP KEY_VALUE_GENERIC_TYPE tailMap(CLASS_TYPE fromKey) { synchronized(mutex) { return MAPS.synchronize(map.tailMap(fromKey), mutex); } }
 		@Override
 		public void setDefaultMaxValue(KEY_TYPE e) { synchronized(mutex) { map.setDefaultMaxValue(e); } }
 		@Override
@@ -701,11 +713,11 @@ public class MAPS
 		@Override
 		public COMPARATOR KEY_GENERIC_TYPE comparator() { synchronized(mutex) { return map.comparator(); } }
 		@Override
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, KEY_TYPE toKey) { synchronized(mutex) { return synchronize(map.subMap(fromKey, toKey), mutex); } }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE subMap(KEY_TYPE fromKey, KEY_TYPE toKey) { synchronized(mutex) { return MAPS.synchronize(map.subMap(fromKey, toKey), mutex); } }
 		@Override
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey)  { synchronized(mutex) { return synchronize(map.headMap(toKey), mutex); } }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE headMap(KEY_TYPE toKey)  { synchronized(mutex) { return MAPS.synchronize(map.headMap(toKey), mutex); } }
 		@Override
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey) { synchronized(mutex) { return synchronize(map.tailMap(fromKey), mutex); } }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE tailMap(KEY_TYPE fromKey) { synchronized(mutex) { return MAPS.synchronize(map.tailMap(fromKey), mutex); } }
 		@Override
 		public KEY_TYPE FIRST_ENTRY_KEY() { synchronized(mutex) { return map.FIRST_ENTRY_KEY(); } }
 		@Override
@@ -718,6 +730,8 @@ public class MAPS
 		public VALUE_TYPE FIRST_ENTRY_VALUE() { synchronized(mutex) { return map.FIRST_ENTRY_VALUE(); } }
 		@Override
 		public VALUE_TYPE LAST_ENTRY_VALUE() { synchronized(mutex) { return map.LAST_ENTRY_VALUE(); } }
+		@Override
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 #if !TYPE_OBJECT
 		@Override
 		@Deprecated
@@ -727,13 +741,13 @@ public class MAPS
 		public CLASS_TYPE lastKey() { synchronized(mutex) { return map.lastKey(); } }
 		@Override
 		@Deprecated
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE subMap(CLASS_TYPE fromKey, CLASS_TYPE toKey) { synchronized(mutex) { return synchronize(map.subMap(fromKey, toKey), mutex); } }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE subMap(CLASS_TYPE fromKey, CLASS_TYPE toKey) { synchronized(mutex) { return MAPS.synchronize(map.subMap(fromKey, toKey), mutex); } }
 		@Override
 		@Deprecated
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE headMap(CLASS_TYPE toKey) { synchronized(mutex) { return synchronize(map.headMap(toKey), mutex); } }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE headMap(CLASS_TYPE toKey) { synchronized(mutex) { return MAPS.synchronize(map.headMap(toKey), mutex); } }
 		@Override
 		@Deprecated
-		public SORTED_MAP KEY_VALUE_GENERIC_TYPE tailMap(CLASS_TYPE fromKey) { synchronized(mutex) { return synchronize(map.tailMap(fromKey), mutex); } }
+		public SORTED_MAP KEY_VALUE_GENERIC_TYPE tailMap(CLASS_TYPE fromKey) { synchronized(mutex) { return MAPS.synchronize(map.tailMap(fromKey), mutex); } }
 #endif
 	}
 	
@@ -831,6 +845,8 @@ public class MAPS
 		@Override
 		public int size() { synchronized(mutex) { return super.size(); } }
 		@Override
+		public MAP KEY_VALUE_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
+		@Override
 		public SET KEY_GENERIC_TYPE keySet() {
 			if(keys == null) keys = SETS.synchronize(map.keySet(), mutex);
 			return keys;

src/main/java/speiger/src/collections/utils/HashUtil.java

@@ -79,6 +79,26 @@ public class HashUtil
 		return x + 1L;
 	}
 	
+	/**
+	 * Function that finds out how many bits are required to store the number Provided
+	 * @param value to get the required bits to store.
+	 * @return the required bits to store that number
+	 * @note Really useful for compression. Reducing data that is inserted into a GZIP algorithm.
+	 */
+	public static int getRequiredBits(int value) {
+		return Integer.bitCount(nextPowerOfTwo(value+1)-1);
+	}
+	
+	/**
+	 * Function that finds out how many bits are required to store the number Provided
+	 * @param value to get the required bits to store.
+	 * @return the required bits to store that number
+	 * @note Really useful for compression. Reducing data that is inserted into a GZIP algorithm.
+	 */
+	public static int getRequiredBits(long value) {
+		return Long.bitCount(nextPowerOfTwo(value+1L)-1L);
+	}
+	
 	/**
 	 * Helper function that creates the ideal array size for HashMap
 	 * @param size the original array size

src/main/java/speiger/src/collections/utils/IArray.java

@@ -16,5 +16,5 @@ public interface IArray extends RandomAccess, ITrimmable
 	 *
 	 * @param size the desired minimum capacity
 	 */
-	void ensureCapacity(int size);
+	public void ensureCapacity(int size);
 }

src/main/java/speiger/src/collections/utils/ITrimmable.java

@@ -10,7 +10,7 @@ public interface ITrimmable
 	 * Trims the original collection down to the size of the current elements
 	 * @return if the internal array has been trimmed.
 	 */
-	default boolean trim() {
+	public default boolean trim() {
 		return trim(0);
 	}
 	
@@ -19,12 +19,12 @@ public interface ITrimmable
 	 * @param size the requested trim size.
 	 * @return if the internal array has been trimmed.
 	 */
-	boolean trim(int size);
+	public boolean trim(int size);
 	
 	/**
 	 * Trims the collection down to the original size and clears all present elements with it.
 	 */
-	default void clearAndTrim() {
+	public default void clearAndTrim() {
 		clearAndTrim(0);
 	}
 	
@@ -33,5 +33,5 @@ public interface ITrimmable
 	 * @param size the amount of elements that should be allowed
 	 * @note this will enforce minimum size of the collection itself
 	 */
-	void clearAndTrim(int size);
+	public void clearAndTrim(int size);
 }

src/main/java/speiger/src/collections/utils/SanityChecks.java

@@ -1,8 +1,5 @@
 package speiger.src.collections.utils;
 
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-
 import java.util.Random;
 import java.util.concurrent.ForkJoinPool;
 import java.util.concurrent.ForkJoinTask;
@@ -11,15 +8,15 @@ import java.util.concurrent.ForkJoinTask;
  * Helper class that provides functions that are shared within the library.
  * On top of that it provides some helper functions that allow control of some internals of the Library
  */
-public final class SanityChecks
+public class SanityChecks
 {
 	/** Max Possible ArraySize without the JVM Crashing */
 	public static final int MAX_ARRAY_SIZE = Integer.MAX_VALUE - 8;
 	private static ForkJoinPool WORK_POOL = ForkJoinPool.commonPool();
 	private static boolean FORCE_IGNORE_PARALLELISM = false;
-	private static final ThreadLocal<Random> RANDOM = ThreadLocal.withInitial(Random::new);
+	private static ThreadLocal<Random> RANDOM = ThreadLocal.withInitial(Random::new);
-	private static final ThreadLocal<Boolean> FORCE_ASYNC = ThreadLocal.withInitial(() -> false);
+	private static ThreadLocal<Boolean> FORCE_ASYNC = ThreadLocal.withInitial(() -> false);
-	private static final ThreadLocal<Boolean> FORCE_TASK_POOL = ThreadLocal.withInitial(() -> false);
+	private static ThreadLocal<Boolean> FORCE_TASK_POOL = ThreadLocal.withInitial(() -> false);
 	
 	/**
 	 * Internal function to cast a Integer to a Byte
@@ -75,8 +72,8 @@ public final class SanityChecks
 	 * @throws IllegalStateException if offset or accessSize is negative or the range goes out of the array-size
 	 */
 	public static void checkArrayCapacity(int arraySize, int offset, int accessSize) {
-		if(offset < 0) throw new IllegalStateException("Offset is negative ("+offset+")");
+		if(offset < 0) throw new IndexOutOfBoundsException("Offset is negative ("+offset+")");
-		else if(accessSize < 0) throw new IllegalStateException("Size is negative ("+accessSize+")");
+		else if(accessSize < 0) throw new IllegalArgumentException("Size is negative ("+accessSize+")");
 		else if(arraySize < offset + accessSize) throw new IndexOutOfBoundsException("Index (" + (offset + accessSize) + ") is not in size (" + arraySize + ")");
 	}
 	
@@ -93,8 +90,8 @@ public final class SanityChecks
 	 * @param task the Task to invoke
 	 * @param <T> the type of the task
 	 */
-	public static <T> void invokeTask(@NotNull ForkJoinTask<T> task) {
+	public static <T> void invokeTask(ForkJoinTask<T> task) {
-		if(FORCE_ASYNC.get()) invokeAsyncTask(task);
+		if(FORCE_ASYNC.get().booleanValue()) invokeAsyncTask(task);
 		else getPool().invoke(task);
 	}
 	
@@ -103,7 +100,7 @@ public final class SanityChecks
 	 * @param task the Task to invoke
 	 * @param <T> the type of the task
 	 */
-	public static <T> void invokeAsyncTask(@NotNull ForkJoinTask<T> task) {
+	public static <T> void invokeAsyncTask(ForkJoinTask<T> task) {
 		getPool().execute(task);
 	}
 	
@@ -112,12 +109,12 @@ public final class SanityChecks
 	 * @note this method is not thread-save. It is only there to provide control over how Library specific Threaded tasks are handled.
 	 * @param pool The ForkJoinPool that should receive the tasks. If null {@link ForkJoinPool#commonPool()} is set instead
 	 */
-	public static void setWorkPool(@Nullable ForkJoinPool pool) {
+	public static void setWorkPool(ForkJoinPool pool) {
 		WORK_POOL = pool == null ? ForkJoinPool.commonPool() : pool;
 	}
 	
-	private static @NotNull ForkJoinPool getPool() {
+	private static ForkJoinPool getPool() {
-		if(FORCE_TASK_POOL.get()) {
+		if(FORCE_TASK_POOL.get().booleanValue()) {
 			ForkJoinPool pool = ForkJoinTask.getPool();
 			if(pool != null) return pool;
 		}
@@ -129,7 +126,7 @@ public final class SanityChecks
 	 * @return if the Current Thread has not to await task completion.
 	 */
 	public static boolean isForcedAsync() {
-		return FORCE_ASYNC.get();
+		return FORCE_ASYNC.get().booleanValue();
 	}
 	
 	/**
@@ -137,7 +134,7 @@ public final class SanityChecks
 	 * @return if the task checks the current pool to be executed in if it is valid.
 	 */
 	public static boolean isForcedTaskPool() {
-		return FORCE_TASK_POOL.get();
+		return FORCE_TASK_POOL.get().booleanValue();
 	}
 	
 	/**
@@ -145,7 +142,7 @@ public final class SanityChecks
 	 * @param value it tasks should not be awaited for
 	 */
 	public static void setForcedAsync(boolean value) {
-		FORCE_ASYNC.set(value);
+		FORCE_ASYNC.set(Boolean.valueOf(value));
 	}
 	
 	/**
@@ -153,7 +150,7 @@ public final class SanityChecks
 	 * @param value if the current thread should check if it is a ThreadPoolWorker.
 	 */
 	public static void setForcedTaskPool(boolean value) {
-		FORCE_TASK_POOL.set(value);
+		FORCE_TASK_POOL.set(Boolean.valueOf(value));
 	}
 	
 	/**
@@ -167,7 +164,7 @@ public final class SanityChecks
 	/**
 	 * @return Thread Specific Random needed for internal functions in this library.
 	 */
-	public static @NotNull Random getRandom() {
+	public static Random getRandom() {
 		return RANDOM.get();
 	}
 }

src/main/java/speiger/src/collections/utils/Stack.java

@@ -1,8 +1,6 @@
 package speiger.src.collections.utils;
 
 
-import org.jetbrains.annotations.NotNull;
-
 /**
  * The Stack Interface represents the Last-In-First-Out layout (LIFO).
  * It provides a simple {@link #push(Object)}, {@link #pop()} function,
@@ -16,40 +14,40 @@ public interface Stack<T>
 	 * Inserts a given Object on top of the stack
 	 * @param e the Object to insert
 	 */
-	void push(@NotNull T e);
+	public void push(T e);
 	
 	/**
 	 * Removes the Object on top of the stack.
 	 * @return the element that is on top of the stack
 	 * @throws ArrayIndexOutOfBoundsException if the stack is empty
 	 */
-	@NotNull T pop();
+	public T pop();
 	
 	/**
 	 * Provides the amount of elements currently in the stack
 	 * @return amount of elements in the list
 	 */
-	int size();
+	public int size();
 	
 	
 	/**
 	 * @return if the stack is empty
 	 */
-	default boolean isEmpty() {
+	public default boolean isEmpty() {
 		return size() == 0;
 	}
 	
 	/**
 	 * Clears the stack
 	 */
-	void clear();
+	public void clear();
 	
 	/**
 	 * Provides the Object on top of the stack
 	 * @return the element that is on top of the stack
 	 * @throws ArrayIndexOutOfBoundsException if the stack is empty
 	 */
-	default @NotNull T top() {
+	public default T top() {
 		return peek(0);
 	}
 	
@@ -60,5 +58,5 @@ public interface Stack<T>
 	 * @return the element that was requested
  	 * @throws ArrayIndexOutOfBoundsException if the index is out of bounds
 	 */
-	@NotNull T peek(int index);
+	public T peek(int index);
 }

src/test/java/speiger/src/collections/ints/base/BaseInt2IntMapTest.java

@@ -135,6 +135,16 @@ public abstract class BaseInt2IntMapTest
 		Assert.assertTrue(map.remove(PUT_VALUE_ARRAY[51], PUT_ARRAY[51]));
 	}
 	
+	@Test
+	public void testSort()
+	{
+		if(!getValidMapTests().contains(MapTests.COPY)) return;
+		Int2IntMap map = createMap(TEST_ARRAY, TEST_ARRAY);
+		Int2IntMap copy = map.copy();
+		Assert.assertFalse(map == copy);
+		Assert.assertEquals(map, copy);
+	}
+	
 	public static class Strategy implements IntStrategy
 	{
 		@Override

src/test/java/speiger/src/collections/ints/base/BaseIntCollectionTest.java

@@ -118,6 +118,14 @@ public abstract class BaseIntCollectionTest extends BaseIntIterableTest
 		Assert.assertTrue(collection.removeAll(Arrays.asList(IntArrays.wrap(CONTAINS_ARRAY))));
 	}
 	
+	@Test
+	public void testRemoveAllListener() {
+		if(!getValidCollectionTests().contains(CollectionTest.REMOVE_ALL_LISTENER)) return;
+		IntCollection collection = create(TEST_ARRAY);
+		Assert.assertTrue(collection.removeAll(create(CONTAINS_ARRAY), T -> {}));
+		Assert.assertFalse(collection.removeAll(create(CONTAINS_ARRAY), T -> Assert.assertTrue(false)));
+	}
+	
 	@Test
 	public void testRetainAll() {
 		if(!getValidCollectionTests().contains(CollectionTest.RETAIN_ALL)) return;
@@ -135,6 +143,23 @@ public abstract class BaseIntCollectionTest extends BaseIntIterableTest
 		Assert.assertTrue(collection.isEmpty());
 	}
 	
+	@Test
+	public void testRetainAllListener() {
+		if(!getValidCollectionTests().contains(CollectionTest.RETAIN_ALL_LISTENER)) return;
+		IntCollection collection = create(TEST_ARRAY);
+		IntCollection retained = create(CONTAINS_ARRAY);
+		Assert.assertTrue(collection.retainAll(retained, T -> {}));
+		Assert.assertFalse(collection.retainAll(retained, T -> Assert.assertTrue(false)));
+		Assert.assertEquals(CONTAINS_ARRAY.length, collection.size());
+		int[] retainedArray = retained.toIntArray();
+		int[] collectionArray = collection.toIntArray();
+		IntArrays.stableSort(retainedArray);
+		IntArrays.stableSort(collectionArray);
+		Assert.assertArrayEquals(retainedArray, collectionArray);
+		collection.retainAll(IntCollections.EMPTY, T -> {});
+		Assert.assertTrue(collection.isEmpty());
+	}
+	
 	@Test
 	public void testToArray() {
 		if(!getValidCollectionTests().contains(CollectionTest.TO_ARRAY)) return;
@@ -178,4 +203,13 @@ public abstract class BaseIntCollectionTest extends BaseIntIterableTest
 		Assert.assertEquals(base, IntCollections.synchronize(collection).toString());
 		Assert.assertEquals(base, IntCollections.unmodifiable(collection).toString());
 	}
+	
+	@Test
+	public void testCopy() {
+		if(!getValidCollectionTests().contains(CollectionTest.COPY)) return;
+		IntCollection collection = create(BULK_ADD_ARRAY);
+		IntCollection copy = collection.copy();
+		Assert.assertFalse(collection == copy);
+		Assert.assertEquals(collection, copy);
+	}
 }

src/test/java/speiger/src/collections/ints/base/BaseIntIterableTest.java

@@ -1,5 +1,6 @@
 package speiger.src.collections.ints.base;
 
+import java.util.Arrays;
 import java.util.EnumSet;
 import java.util.stream.IntStream;
 
@@ -8,6 +9,11 @@ import org.junit.Test;
 
 import speiger.src.collections.ints.collections.IntIterable;
 import speiger.src.collections.ints.collections.IntIterator;
+import speiger.src.collections.ints.lists.IntArrayList;
+import speiger.src.collections.ints.utils.IntArrays;
+import speiger.src.collections.ints.utils.IntIterators;
+import speiger.src.collections.objects.utils.ObjectArrays;
+import speiger.src.collections.objects.utils.ObjectIterators;
 import speiger.src.collections.tests.IterableTest;
 
 @SuppressWarnings("javadoc")
@@ -15,6 +21,7 @@ public abstract class BaseIntIterableTest
 {
 	protected static final int[] EMPTY_ARRAY = new int[0];
 	protected static final int[] TEST_ARRAY = IntStream.range(0, 100).toArray();
+	protected static final int[] DISTINCT_ARRAY = IntStream.range(0, 100).flatMap(T -> Arrays.stream(new int[]{T, T})).toArray();
 	
 	protected abstract IntIterable create(int[] data);
 	
@@ -65,4 +72,103 @@ public abstract class BaseIntIterableTest
 			}
 		}
 	}
+	
+	@Test
+	public void testStreamCount() {
+		if(getValidIterableTests().contains(IterableTest.STREAM_COUNT)) {
+			long expected = IntStream.of(TEST_ARRAY).filter(T -> T % 2 == 0).count();
+			int size = create(TEST_ARRAY).count(T -> T % 2 == 0);
+			Assert.assertEquals(expected, size);
+		}
+	}
+	
+	@Test
+	public void testStreamFilter() {
+		if(getValidIterableTests().contains(IterableTest.STREAM_FILTER)) {
+			int[] expected = IntStream.of(TEST_ARRAY).filter(T -> T % 2 == 0).toArray();
+			int[] actual = IntIterators.pour(create(TEST_ARRAY).filter(T -> T % 2 == 0).iterator()).toIntArray();
+			IntArrays.stableSort(actual);
+			Assert.assertArrayEquals(expected, actual);
+		}
+	}
+	
+	@Test
+	public void testStreamFindFirst() {
+		if(getValidIterableTests().contains(IterableTest.STREAM_FIND_FIRST)) {
+			int expected = IntStream.of(TEST_ARRAY).filter(T -> T / 50 > 0).findFirst().getAsInt();
+			int actual = create(TEST_ARRAY).findFirst(T -> T / 50 > 0);
+			Assert.assertEquals(expected, actual);
+		}
+	}
+	
+	@Test
+	public void teastStreamDistinct() {
+		if(getValidIterableTests().contains(IterableTest.STREAM_DISTINCT)) {
+			int[] expected = IntStream.of(DISTINCT_ARRAY).distinct().toArray();
+			int[] actual = IntIterators.pour(create(DISTINCT_ARRAY).distinct().iterator()).toIntArray();
+			IntArrays.stableSort(actual);
+			Assert.assertArrayEquals(expected, actual);
+		}
+	}
+	
+	@Test
+	public void testStreamLimit() {
+		if(getValidIterableTests().contains(IterableTest.STREAM_LIMIT)) {
+			int[] expected = IntStream.of(TEST_ARRAY).limit(25).toArray();
+			int[] actual = IntIterators.pour(create(TEST_ARRAY).limit(25).iterator()).toIntArray();
+			Assert.assertEquals(expected.length, actual.length);
+		}
+	}
+	
+	@Test
+	public void testStreamMap() {
+		if(getValidIterableTests().contains(IterableTest.STREAM_MAP)) {
+			Integer[] expected = IntStream.of(TEST_ARRAY).mapToObj(Integer::new).toArray(Integer[]::new);
+			Integer[] actual = ObjectIterators.pour(create(TEST_ARRAY).map(Integer::new).iterator()).toArray(Integer[]::new);
+			ObjectArrays.stableSort(actual);
+			Assert.assertArrayEquals(expected, actual);
+		}
+	}
+	
+	@Test
+	public void testStreamMatches() {
+		if(getValidIterableTests().contains(IterableTest.STREAM_MATCHES)) {
+			IntIterable iterable = create(TEST_ARRAY);
+			Assert.assertTrue(iterable.matchesAll(T -> T >= 0));
+			Assert.assertFalse(iterable.matchesAll(T -> T < 0));
+			Assert.assertTrue(iterable.matchesAny(T -> T % 2 != 0));
+			Assert.assertFalse(iterable.matchesAny(T -> T % 2 >= 2));
+			Assert.assertTrue(iterable.matchesNone(T -> T % 2 >= 2));
+			Assert.assertFalse(iterable.matchesNone(T -> T % 2 != 0));
+		}
+	}
+	
+	@Test
+	public void testStreamPeek() {
+		if(getValidIterableTests().contains(IterableTest.STREAM_PEEK)) {
+			int[] peekCount = new int[2];
+			create(TEST_ARRAY).peek(T -> peekCount[0]++).forEach(T -> peekCount[1]++);
+			Assert.assertEquals(TEST_ARRAY.length, peekCount[0]);
+			Assert.assertEquals(TEST_ARRAY.length, peekCount[1]);
+		}
+	}
+	
+	@Test
+	public void testStreamPour() {
+		if(getValidIterableTests().contains(IterableTest.STREAM_POUR)) {
+			int[] expected = TEST_ARRAY;
+			int[] actual = create(TEST_ARRAY).pour(new IntArrayList()).toIntArray();
+			IntArrays.stableSort(actual);
+			Assert.assertArrayEquals(expected, actual);
+		}
+	}
+	
+	@Test
+	public void testStreamReduce() {
+		if(getValidIterableTests().contains(IterableTest.STREAM_REDUCE)) {
+			int expected = IntStream.of(TEST_ARRAY).reduce(0, Integer::sum);
+			int actual = create(TEST_ARRAY).reduce(0, Integer::sum);
+			Assert.assertEquals(expected, actual);
+		}
+	}
 }

src/test/java/speiger/src/collections/ints/base/BaseIntListTest.java

@@ -64,6 +64,16 @@ public abstract class BaseIntListTest extends BaseIntCollectionTest
 		for(int i = 0;i<ADD_ARRAY.length;i++) Assert.assertEquals(ADD_ARRAY[i], list.getInt(i));
 	}
 	
+	@Test
+	public void testSpecialAdd() {
+		if(getValidListTests().contains(ListTest.ADD_SPECIAL)) return;
+		IntList list = create(TEST_ARRAY);
+		Assert.assertFalse(list.addIfAbsent(50));
+		Assert.assertTrue(list.addIfPresent(50));
+		Assert.assertTrue(list.addIfAbsent(150));
+		Assert.assertFalse(list.addIfAbsent(150));
+	}
+	
 	@Test
 	@SuppressWarnings("deprecation")	
 	public void testIndex() {
@@ -173,6 +183,17 @@ public abstract class BaseIntListTest extends BaseIntCollectionTest
 		}
 	}
 	
+	@Test
+	public void testSwapRemove() {
+		if(getValidListTests().contains(ListTest.REMOVE_SWAP)) return;
+		IntList list = create(TEST_ARRAY);
+		Assert.assertEquals(TEST_ARRAY[50], list.swapRemove(50));
+		Assert.assertEquals(TEST_ARRAY[TEST_ARRAY.length-1], list.getInt(50));
+		list = create(TEST_ARRAY);
+		Assert.assertTrue(list.swapRemoveInt(50));
+		Assert.assertFalse(list.swapRemoveInt(50));
+	}
+	
 	@Test
 	public void testListIterator() {
 		if(getValidListTests().contains(ListTest.LIST_ITERATOR)) return;

src/test/java/speiger/src/collections/ints/base/BaseIntPriorityQueueTest.java

@@ -120,4 +120,13 @@ public abstract class BaseIntPriorityQueueTest extends BaseIntIterableTest
 			}
 		}
 	}
+	
+	@Test
+	public void testCopy() {
+		if(!getValidPriorityQueueTests().contains(PriorityQueueTest.COPY)) return;
+		IntPriorityQueue queue = create(TEST_ARRAY);
+		IntPriorityQueue copy = queue.copy();
+		Assert.assertFalse(queue == copy);
+		Assert.assertEquals(queue, copy);
+	}
 }

src/test/java/speiger/src/collections/objects/list/ObjectArrayListTest.java

@@ -22,6 +22,13 @@ public class ObjectArrayListTest
 		testCastable(ObjectArrayList.wrap("Test", "Testing", "Testing stuff"), true);
 	}
 	
+	@Test
+	public void testEmptyCreation()
+	{
+		ObjectArrayList<String> test = ObjectArrayList.of(String.class);
+		Assert.assertTrue(test.isCastable());
+	}
+	
 	public <T> void testCastable(IObjectArray<T> castable, boolean result)
 	{
 		Assert.assertTrue(castable.isCastable() == result);

src/test/java/speiger/src/collections/objects/list/ObjectListTests.java

@@ -0,0 +1,46 @@
+package speiger.src.collections.objects.list;
+
+import java.util.List;
+import java.util.function.Function;
+
+import com.google.common.collect.testing.ListTestSuiteBuilder;
+import com.google.common.collect.testing.TestStringListGenerator;
+import com.google.common.collect.testing.features.CollectionFeature;
+import com.google.common.collect.testing.features.CollectionSize;
+import com.google.common.collect.testing.features.ListFeature;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+import speiger.src.collections.objects.lists.ImmutableObjectList;
+import speiger.src.collections.objects.lists.ObjectArrayList;
+import speiger.src.collections.objects.lists.ObjectLinkedList;
+
+@SuppressWarnings("javadoc")
+public class ObjectListTests extends TestCase
+{
+	public static Test suite()
+	{
+		TestSuite suite = new TestSuite("Lists");
+		suite.addTest(suite("ArrayList", T -> new ObjectArrayList<>(T)));
+		suite.addTest(suite("LinkedList", T -> new ObjectLinkedList<>(T)));
+		suite.addTest(immutableSuite("ImmutableList", T -> new ImmutableObjectList<>(T)));
+		return suite;
+	}
+	
+	public static Test suite(String name, Function<String[], List<String>> factory)
+	{
+		return ListTestSuiteBuilder.using(new TestStringListGenerator() {
+			@Override
+			protected List<String> create(String[] elements) { return factory.apply(elements); }
+		}).named(name).withFeatures(ListFeature.GENERAL_PURPOSE, CollectionFeature.ALLOWS_NULL_VALUES, CollectionSize.ANY).createTestSuite();
+	}
+	
+	public static Test immutableSuite(String name, Function<String[], List<String>> factory)
+	{
+		return ListTestSuiteBuilder.using(new TestStringListGenerator() {
+			@Override
+			protected List<String> create(String[] elements) { return factory.apply(elements); }
+		}).named(name).withFeatures(CollectionFeature.ALLOWS_NULL_VALUES, CollectionSize.ANY).createTestSuite();
+	}
+}

src/test/java/speiger/src/collections/objects/map/ObjectMapTests.java

@@ -0,0 +1,115 @@
+package speiger.src.collections.objects.map;
+
+import java.util.Comparator;
+import java.util.Map;
+import java.util.Objects;
+import java.util.function.BiFunction;
+import java.util.function.Supplier;
+
+import com.google.common.collect.testing.AnEnum;
+import com.google.common.collect.testing.MapTestSuiteBuilder;
+import com.google.common.collect.testing.TestEnumMapGenerator;
+import com.google.common.collect.testing.TestStringMapGenerator;
+import com.google.common.collect.testing.features.CollectionFeature;
+import com.google.common.collect.testing.features.CollectionSize;
+import com.google.common.collect.testing.features.MapFeature;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+import speiger.src.collections.objects.maps.impl.customHash.Object2ObjectLinkedOpenCustomHashMap;
+import speiger.src.collections.objects.maps.impl.customHash.Object2ObjectOpenCustomHashMap;
+import speiger.src.collections.objects.maps.impl.hash.Object2ObjectLinkedOpenHashMap;
+import speiger.src.collections.objects.maps.impl.hash.Object2ObjectOpenHashMap;
+import speiger.src.collections.objects.maps.impl.immutable.ImmutableObject2ObjectOpenHashMap;
+import speiger.src.collections.objects.maps.impl.misc.Enum2ObjectMap;
+import speiger.src.collections.objects.maps.impl.misc.LinkedEnum2ObjectMap;
+import speiger.src.collections.objects.maps.impl.misc.Object2ObjectArrayMap;
+import speiger.src.collections.objects.maps.impl.tree.Object2ObjectAVLTreeMap;
+import speiger.src.collections.objects.maps.impl.tree.Object2ObjectRBTreeMap;
+import speiger.src.collections.objects.utils.ObjectStrategy;
+
+@SuppressWarnings("javadoc")
+public class ObjectMapTests extends TestCase
+{
+	public static Test suite()
+	{
+		TestSuite suite = new TestSuite("Maps");
+		suite.addTest(suite("HashMap", Object2ObjectOpenHashMap::new, true));
+		suite.addTest(suite("LinkedHashMap", Object2ObjectLinkedOpenHashMap::new, true));
+		suite.addTest(suite("CustomHashMap", () -> new Object2ObjectOpenCustomHashMap<>(Strategy.INSTANCE), true));
+		suite.addTest(suite("LinkedCustomHashMap", () -> new Object2ObjectLinkedOpenCustomHashMap<>(Strategy.INSTANCE), true));
+		suite.addTest(suite("RBTreeMap_NonNull", Object2ObjectRBTreeMap::new, false));
+		suite.addTest(suite("AVLTreeMap_NonNull", Object2ObjectAVLTreeMap::new, false));
+		suite.addTest(suite("RBTreeMap_Null", () -> new Object2ObjectRBTreeMap<String, String>(Comparator.nullsFirst(Comparator.naturalOrder())), true));
+		suite.addTest(suite("AVLTreeMap_Null", () -> new Object2ObjectAVLTreeMap<String, String>(Comparator.nullsFirst(Comparator.naturalOrder())), true));
+		suite.addTest(immutableSuit("ImmutableMap", ImmutableObject2ObjectOpenHashMap::new));
+		suite.addTest(suite("ArrayMap", Object2ObjectArrayMap::new, true));
+		suite.addTest(enumSuite("EnumMap", () -> new Enum2ObjectMap<>(AnEnum.class)));
+		suite.addTest(enumSuite("LinkedEnumMap", () -> new LinkedEnum2ObjectMap<>(AnEnum.class)));
+		return suite;
+	}
+	
+	public static Test suite(String name, Supplier<Map<String, String>> factory, boolean allowNull)
+	{
+		MapTestSuiteBuilder<String, String> builder = MapTestSuiteBuilder.using(new TestStringMapGenerator() {
+			@Override
+			protected Map<String, String> create(Map.Entry<String, String>[] entries) {
+				Map<String, String> map = factory.get();
+				for(Map.Entry<String, String> entry : entries) {
+					map.put(entry.getKey(), entry.getValue());
+				}
+				return map;
+			}
+		}).named(name).withFeatures(CollectionSize.ANY, MapFeature.GENERAL_PURPOSE, MapFeature.ALLOWS_NULL_VALUES, CollectionFeature.SUPPORTS_ITERATOR_REMOVE);
+		if(allowNull) builder.withFeatures(MapFeature.ALLOWS_NULL_KEYS, MapFeature.ALLOWS_ANY_NULL_QUERIES);
+		return builder.createTestSuite();
+	}
+	
+	public static Test immutableSuit(String name, BiFunction<String[], String[], Map<String, String>> factory)  {
+		MapTestSuiteBuilder<String, String> builder = MapTestSuiteBuilder.using(new TestStringMapGenerator() {
+			@Override
+			protected Map<String, String> create(Map.Entry<String, String>[] entries) {
+				String[] keys = new String[entries.length];
+				String[] values = new String[entries.length];
+				for(int i = 0;i<entries.length;i++) {
+					keys[i] = entries[i].getKey();
+					values[i] = entries[i].getValue();
+				}
+				return factory.apply(keys, values);
+			}
+		}).named(name).withFeatures(CollectionSize.ANY, MapFeature.ALLOWS_NULL_KEYS, MapFeature.ALLOWS_NULL_VALUES, MapFeature.ALLOWS_ANY_NULL_QUERIES);
+		return builder.createTestSuite();
+	}
+	
+	public static Test enumSuite(String name, Supplier<Map<AnEnum, String>> factory)
+	{
+		MapTestSuiteBuilder<AnEnum, String> builder = MapTestSuiteBuilder.using(new TestEnumMapGenerator() {
+			@Override
+			protected Map<AnEnum, String> create(Map.Entry<AnEnum, String>[] entries) {
+				Map<AnEnum, String> map = factory.get();
+				for(Map.Entry<AnEnum, String> entry : entries) {
+					map.put(entry.getKey(), entry.getValue());
+				}
+				return map;
+			}
+		}).named(name).withFeatures(CollectionSize.ANY, MapFeature.GENERAL_PURPOSE, MapFeature.ALLOWS_NULL_VALUES, CollectionFeature.SUPPORTS_ITERATOR_REMOVE);
+		return builder.createTestSuite();
+	}
+	
+	private static class Strategy implements ObjectStrategy<String>
+	{
+		static final Strategy INSTANCE = new Strategy();
+		
+		@Override
+		public int hashCode(String o) {
+			return Objects.hashCode(o);
+		}
+
+		@Override
+		public boolean equals(String key, String value) {
+			return Objects.equals(key, value);
+		}
+		
+	}
+}

src/test/java/speiger/src/collections/objects/set/ObjectSetTests.java

@@ -0,0 +1,80 @@
+package speiger.src.collections.objects.set;
+
+import java.util.Comparator;
+import java.util.Objects;
+import java.util.Set;
+import java.util.function.Function;
+
+import com.google.common.collect.testing.SetTestSuiteBuilder;
+import com.google.common.collect.testing.TestStringSetGenerator;
+import com.google.common.collect.testing.features.CollectionFeature;
+import com.google.common.collect.testing.features.CollectionSize;
+import com.google.common.collect.testing.features.SetFeature;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+import speiger.src.collections.objects.sets.ImmutableObjectOpenHashSet;
+import speiger.src.collections.objects.sets.ObjectAVLTreeSet;
+import speiger.src.collections.objects.sets.ObjectArraySet;
+import speiger.src.collections.objects.sets.ObjectLinkedOpenCustomHashSet;
+import speiger.src.collections.objects.sets.ObjectLinkedOpenHashSet;
+import speiger.src.collections.objects.sets.ObjectOpenCustomHashSet;
+import speiger.src.collections.objects.sets.ObjectOpenHashSet;
+import speiger.src.collections.objects.sets.ObjectRBTreeSet;
+import speiger.src.collections.objects.utils.ObjectStrategy;
+
+@SuppressWarnings("javadoc")
+public class ObjectSetTests extends TestCase
+{
+	public static Test suite()
+	{
+		TestSuite suite = new TestSuite("Sets");
+		suite.addTest(suite("HashSet", ObjectOpenHashSet::new, true));
+		suite.addTest(suite("LinkedHashSet", ObjectLinkedOpenHashSet::new, true));
+		suite.addTest(suite("CustomHashSet", T -> new ObjectOpenCustomHashSet<>(T, Strategy.INSTANCE), true));
+		suite.addTest(suite("LinkedCustomHashSet", T -> new ObjectLinkedOpenCustomHashSet<>(T, Strategy.INSTANCE), true));
+		suite.addTest(immutableSuite("ImmutableHashSet", ImmutableObjectOpenHashSet::new));
+		suite.addTest(suite("ArraySet", ObjectArraySet::new, true));
+		suite.addTest(suite("RBTreeSet_NonNull", ObjectRBTreeSet::new, false));
+		suite.addTest(suite("AVLTreeSet_NonNull", ObjectAVLTreeSet::new, false));
+		suite.addTest(suite("RBTreeSet_Null", T -> new ObjectRBTreeSet<>(T, Comparator.nullsFirst(Comparator.naturalOrder())), true));
+		suite.addTest(suite("AVLTreeSet_Null", T -> new ObjectAVLTreeSet<>(T, Comparator.nullsFirst(Comparator.naturalOrder())), true));
+		return suite;
+	}
+	
+	public static Test suite(String name, Function<String[], Set<String>> factory, boolean allowNull)
+	{
+		SetTestSuiteBuilder<String> generator = SetTestSuiteBuilder.using(new TestStringSetGenerator() {
+			@Override
+			protected Set<String> create(String[] elements) { return factory.apply(elements); }
+		}).named(name).withFeatures(CollectionSize.ANY, SetFeature.GENERAL_PURPOSE);
+		if(allowNull) generator.withFeatures(CollectionFeature.ALLOWS_NULL_VALUES);
+		return generator.createTestSuite();
+	}
+	
+	
+	public static Test immutableSuite(String name, Function<String[], Set<String>> factory)
+	{
+		return SetTestSuiteBuilder.using(new TestStringSetGenerator() {
+			@Override
+			protected Set<String> create(String[] elements) { return factory.apply(elements); }
+		}).named(name).withFeatures(CollectionSize.ANY, CollectionFeature.ALLOWS_NULL_VALUES).createTestSuite();
+	}
+	
+	private static class Strategy implements ObjectStrategy<String>
+	{
+		static final Strategy INSTANCE = new Strategy();
+		
+		@Override
+		public int hashCode(String o) {
+			return Objects.hashCode(o);
+		}
+
+		@Override
+		public boolean equals(String key, String value) {
+			return Objects.equals(key, value);
+		}
+		
+	}
+}

src/test/java/speiger/src/collections/tests/CollectionTest.java

@@ -11,9 +11,12 @@ public enum CollectionTest
 	REMOVE,
 	REMOVE_IF,
 	REMOVE_ALL,
+	REMOVE_ALL_LISTENER,
 	RETAIN_ALL,
+	RETAIN_ALL_LISTENER,
 	TO_ARRAY,
 	CLEAR,
 	WRAPPER,
-	TO_STRING;
+	TO_STRING,
+	COPY;
 }

src/test/java/speiger/src/collections/tests/IterableTest.java

@@ -7,5 +7,15 @@ public enum IterableTest
 	ITERATOR_FOR_EACH,
 	ITERATOR_LOOP,
 	ITERATOR_REMOVAL,
-	ITERATOR_SKIP;
+	ITERATOR_SKIP,
+	STREAM_COUNT,
+	STREAM_FILTER,
+	STREAM_FIND_FIRST,
+	STREAM_DISTINCT,
+	STREAM_LIMIT,
+	STREAM_MAP,
+	STREAM_MATCHES,
+	STREAM_PEEK,
+	STREAM_POUR,
+	STREAM_REDUCE;
 }

src/test/java/speiger/src/collections/tests/ListTest.java

@@ -8,6 +8,7 @@ public enum ListTest
 	ADD_INDEX_COLLECTION,
 	ADD_INDEX_LIST,
 	ADD_ELEMENTS,
+	ADD_SPECIAL,
 	INDEX,
 	LAST_INDEX,
 	GET,
@@ -17,6 +18,7 @@ public enum ListTest
 	SORT,
 	REPLACE,
 	REMOVE,
+	REMOVE_SWAP,
 	REMOVE_ELEMENTS,
 	EXTRACT_ELEMENTS,
 	LIST_ITERATOR,

src/test/java/speiger/src/collections/tests/MapTests.java

@@ -11,5 +11,6 @@ public enum MapTests
 	MERGE,
 	GET,
 	ITERATORS,
-	REMOVE;
+	REMOVE,
+	COPY;
 }

src/test/java/speiger/src/collections/tests/PriorityQueueTest.java

@@ -7,4 +7,5 @@ public enum PriorityQueueTest
 	PEEK,
 	REMOVE,
 	TO_ARRAY,
+	COPY;
 }