1.0.0 release for now

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

.classpath

@@ -32,7 +32,7 @@
 			<attribute name="gradle_used_by_scope" value="builder"/>
 		</attributes>
 	</classpathentry>
-	<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.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21/"/>
 	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
 	<classpathentry kind="output" path="bin/default"/>
 </classpath>

build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id 'java-library'
     id "jacoco"
+	id "com.vanniktech.maven.publish" version "0.28.0"
 }
 
 tasks.withType(JavaCompile) {
@@ -56,7 +57,7 @@ dependencies {
 	builderImplementation 'com.google.code.gson:gson:2.10'
 	builderImplementation 'de.speiger:Simple-Code-Generator:1.3.0'
     testImplementation 'junit:junit:4.12'
-    testImplementation 'com.google.guava:guava-testlib:31.0.1-jre'
+    testImplementation 'com.google.guava:guava-testlib:33.6.0-jre'
     
 }
 
@@ -331,50 +332,49 @@ tasks.withType(PublishToMavenLocal) {
 //Maven central Start
 //Disabling due to java8 incompat, only needed to manually publishing anyways
 
-//signing.useGpgCmd()
-//
-//import com.vanniktech.maven.publish.SonatypeHost
-//import com.vanniktech.maven.publish.JavaLibrary
-//import com.vanniktech.maven.publish.JavadocJar
-//
-//mavenPublishing {
-//  configure(new JavaLibrary(new JavadocJar.None(), true))
-//}
-//
-//mavenPublishing {
-//    publishToMavenCentral(SonatypeHost.CENTRAL_PORTAL)
-//
-//    signAllPublications()
-//    pom {
-//		name = 'Primitive Collections'
-//		description = 'A Primitive Collection library that reduces memory usage and improves performance'
-//		url = 'https://github.com/Speiger/Primitive-Collections'
-//		version = project.version	
-//		group = 'io.github.speiger'
-//        licenses {
-//            license {
-//				name = 'The Apache License, Version 2.0'
-//				url = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
-//            }
-//        }
-//
-//        developers {
-//			developer {
-//				id = 'speiger'
-//				name = 'Speiger'
-//			}
-//        }
-//
-//        scm {
-//            connection = 'scm:git:git://github.com/Speiger/Primitive-Collections.git'
-//            developerConnection = 'scm:git:ssh://github.com:Speiger/Primitive-Collections.git'
-//            url = 'https://github.com/Speiger/Primitive-Collections'
-//        }
-//                
-//        issueManagement {
-//			system = 'github'
-//			url = 'https://github.com/Speiger/Primitive-Collections/issues'
-//		}
-//    }
-//}
-//
+signing.useGpgCmd()
+
+import com.vanniktech.maven.publish.SonatypeHost
+import com.vanniktech.maven.publish.JavaLibrary
+import com.vanniktech.maven.publish.JavadocJar
+
+mavenPublishing {
+  configure(new JavaLibrary(new JavadocJar.None(), true))
+}
+
+mavenPublishing {
+    publishToMavenCentral(SonatypeHost.CENTRAL_PORTAL)
+
+    signAllPublications()
+    pom {
+		name = 'Primitive Collections'
+		description = 'A Primitive Collection library that reduces memory usage and improves performance'
+		url = 'https://github.com/Speiger/Primitive-Collections'
+		version = project.version	
+		group = 'io.github.speiger'
+        licenses {
+            license {
+				name = 'The Apache License, Version 2.0'
+				url = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+            }
+        }
+
+        developers {
+			developer {
+				id = 'speiger'
+				name = 'Speiger'
+			}
+        }
+
+        scm {
+            connection = 'scm:git:git://github.com/Speiger/Primitive-Collections.git'
+            developerConnection = 'scm:git:ssh://github.com:Speiger/Primitive-Collections.git'
+            url = 'https://github.com/Speiger/Primitive-Collections'
+        }
+                
+        issueManagement {
+			system = 'github'
+			url = 'https://github.com/Speiger/Primitive-Collections/issues'
+		}
+    }
+}

gradle.properties

@@ -3,4 +3,4 @@ org.gradle.jvmargs=-Xmx3G
 maxMemory = 2048m
 testThreads = 4
 
-RELEASE_VERSION = 0.9.0
+RELEASE_VERSION = 1.0.0

jitpack.yml

@@ -1,5 +1,5 @@
 jdk:
-   - openjdk9
+   - openjdk21
 install:
    - chmod +x ./gradlew
    - ./gradlew build publishToMavenLocal

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

@@ -36,6 +36,10 @@ public class MapModule extends BaseModule
 	public static final FunctionDependency ENUM_MAP = MODULE.createDependency("EnumMap").addEntryDependency(IMPLEMENTATION);
 	public static final FunctionDependency LINKED_ENUM_MAP = MODULE.createDependency("LinkedEnumMap").addEntryDependency(ENUM_MAP).addEntryDependency(ORDERED_MAP);
 	
+	public static final FunctionDependency REF_MAP = MODULE.createDependency("ReferenceHashMap").addEntryDependency(IMPLEMENTATION);
+	public static final FunctionDependency LINKED_REF_MAP = MODULE.createDependency("LinkedReferenceMap").addEntryDependency(REF_MAP).addEntryDependency(ORDERED_MAP);
+
+	
 	public static final FunctionDependency CONCURRENT_MAP = MODULE.createDependency("ConcurrentMap").addEntryDependency(IMPLEMENTATION);
 	public static final FunctionDependency AVL_TREE_MAP = MODULE.createDependency("AVLTreeMap").addEntryDependency(SORTED_MAP).addEntryDependency(IMPLEMENTATION);
 	public static final FunctionDependency RB_TREE_MAP = MODULE.createDependency("RBTreeMap").addEntryDependency(SORTED_MAP).addEntryDependency(IMPLEMENTATION);
@@ -51,7 +55,7 @@ public class MapModule extends BaseModule
 	@Override
 	public List<IDependency> getDependencies(ClassType keyType, ClassType valueType) {
 		List<IDependency> dependencies = new ArrayList<>(Arrays.asList(MODULE, ORDERED_MAP, SORTED_MAP, IMPLEMENTATION, WRAPPERS, ARRAY_MAP, IMMUTABLE_MAP, HASH_MAP, LINKED_MAP, CUSTOM_MAP, LINKED_CUSTOM_MAP, CONCURRENT_MAP, AVL_TREE_MAP, RB_TREE_MAP));
-		if(keyType == ClassType.OBJECT) dependencies.addAll(Arrays.asList(ENUM_MAP, LINKED_ENUM_MAP));
+		if(keyType == ClassType.OBJECT) dependencies.addAll(Arrays.asList(ENUM_MAP, LINKED_ENUM_MAP, REF_MAP, LINKED_REF_MAP));
 		return dependencies;
 	}
 	
@@ -70,6 +74,10 @@ public class MapModule extends BaseModule
 		if(AVL_TREE_MAP.isEnabled()) addFlag("AVL_TREE_MAP_FEATURE");
 		if(RB_TREE_MAP.isEnabled()) addFlag("RB_TREE_MAP_FEATURE");
 		
+		if(REF_MAP.isEnabled()) addFlag("REF_MAP_FEATURE");
+		if(LINKED_REF_MAP.isEnabled()) addFlag("LINKED_REF_MAP_FEATURE");
+		
+		
 		if(CONCURRENT_MAP.isEnabled()) addFlag("CONCURRENT_MAP_FEATURE");
 		if(IMMUTABLE_MAP.isEnabled()) addFlag("IMMUTABLE_MAP_FEATURE");
 		if(HASH_MAP.isEnabled()) addFlag("MAP_FEATURE");
@@ -85,6 +93,8 @@ public class MapModule extends BaseModule
 		if(!IMMUTABLE_MAP.isEnabled()) addBlockedFiles("ImmutableOpenHashMap");
 		if(!CONCURRENT_MAP.isEnabled()) addBlockedFiles("ConcurrentMap", "ConcurrentOpenHashMap");
 		if(!ORDERED_MAP.isEnabled()) addBlockedFiles("OrderedMap");
+		if(!REF_MAP.isEnabled()) addBlockedFiles("ReferenceHashMap");
+		if(!LINKED_REF_MAP.isEnabled()) addBlockedFiles("LinkedReferenceHashMap");
 		if(!HASH_MAP.isEnabled()) addBlockedFiles("OpenHashMap");
 		if(!LINKED_MAP.isEnabled()) addBlockedFiles("LinkedOpenHashMap");
 		if(!CUSTOM_MAP.isEnabled()) addBlockedFiles("OpenCustomHashMap");
@@ -127,6 +137,8 @@ public class MapModule extends BaseModule
 		addBiRequirement("AbstractMap");
 		addEnumRequirement("EnumMap");
 		addEnumRequirement("LinkedEnumMap");
+		addEnumRequirement("ReferenceHashMap");
+		addEnumRequirement("LinkedReferenceHashMap");
 		addBiRequirement("ConcurrentOpenHashMap");
 		addBiRequirement("ImmutableOpenHashMap");
 		addBiRequirement("OpenHashMap");
@@ -141,6 +153,8 @@ public class MapModule extends BaseModule
 		addRemapper("AbstractMap", "Abstract%sMap");
 		addRemapper("EnumMap", "Enum2%sMap");
 		addRemapper("LinkedEnumMap", "LinkedEnum2%sMap");
+		addRemapper("ReferenceHashMap", "Reference2%sHashMap");
+		addRemapper("LinkedReferenceHashMap", "Reference2%sLinkedHashMap");
 		addRemapper("ImmutableOpenHashMap", "Immutable%sOpenHashMap");
 		
 		//Test Classes
@@ -198,6 +212,7 @@ public class MapModule extends BaseModule
 		addBiRequirement("SortedMapNavigationTester");
 		addBiRequirement("OrderedMapNavigationTester");
 		addBiRequirement("OrderedMapMoveTester");
+		addBiRequirement("OrderedMapPutTester");
 		addBiRequirement("MapConstructorTester");
 		
 		addRemapper("TestMapGenerator", "Test%sMapGenerator");
@@ -248,6 +263,8 @@ public class MapModule extends BaseModule
 		addBiClassMapper("RB_TREE_MAP", "RBTreeMap", "2");
 		addFunctionValueMappers("LINKED_ENUM_MAP", valueType.isObject() ? "LinkedEnum2ObjectMap" : "LinkedEnum2%sMap");
 		addFunctionValueMappers("ENUM_MAP", valueType.isObject() ? "Enum2ObjectMap" : "Enum2%sMap");
+		addFunctionValueMappers("REF_MAP", valueType.isObject() ? "Reference2ObjectHashMap" : "Reference2%sHashMap");
+		addFunctionValueMappers("LINKED_REF_MAP", valueType.isObject() ? "Reference2ObjectLinkedHashMap" : "Reference2%sLinkedHashMap");
 		addBiClassMapper("HASH_MAP", "OpenHashMap", "2");
 		addBiClassMapper("ARRAY_MAP", "ArrayMap", "2");
 		

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

@@ -9,6 +9,13 @@ import java.util.Iterator;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
+
 #endif
 #if TYPE_OBJECT
 #if IARRAY_FEATURE || TYPE_OBJECT
@@ -225,6 +232,42 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		return list;
 	}
 	
+#endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ArrayList
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, ObjectArrayList<T>, ObjectArrayList<T>> toList() {
+		return Collector.of(ObjectArrayList::new, ObjectArrayList::add, ObjectArrayList::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a ArrayList
+	 * @Type(T)
+	 * @return a list with the contents of the Stream
+	 */
+	public static <T> ARRAY_LIST KEY_GENERIC_TYPE toList(Stream<T> stream) {
+		return stream.collect(ObjectArrayList::new, ObjectArrayList::add, ObjectArrayList::merge);
+	}
+	
+	private ObjectArrayList<T> merge(ObjectArrayList<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ArrayList
+	 * @return a list with the contents of the Stream
+	 */
+	public static ARRAY_LIST toList(JAVA_STREAM stream) {
+		return stream.collect(ARRAY_LIST::new, ARRAY_LIST::add, ARRAY_LIST::addAll);
+	}
+	
+#endif
 #endif
 	/**
 	 * Appends the specified element to the end of this list.

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

@@ -10,6 +10,12 @@ import java.util.NoSuchElementException;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
 #endif
 import java.util.concurrent.locks.ReentrantLock;
 import java.util.function.Consumer;
@@ -172,7 +178,42 @@ public class COPY_ON_WRITE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENER
 	}
 	
 #endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a CopyOnWriteArrayList
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, CopyOnWriteObjectArrayList<T>, CopyOnWriteObjectArrayList<T>> toList() {
+		return Collector.of(CopyOnWriteObjectArrayList::new, CopyOnWriteObjectArrayList::add, CopyOnWriteObjectArrayList::merge);
+	}
 	
+	/**
+	 * Collects a Stream to a CopyOnWriteArrayList
+	 * @Type(T)
+	 * @return a list with the contents of the Stream
+	 */
+	public static <T> CopyOnWriteObjectArrayList KEY_GENERIC_TYPE toList(Stream<T> stream) {
+		return stream.collect(CopyOnWriteObjectArrayList::new, CopyOnWriteObjectArrayList::add, CopyOnWriteObjectArrayList::merge);
+	}
+	
+	private CopyOnWriteObjectArrayList<T> merge(CopyOnWriteObjectArrayList<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a CopyOnWriteArrayList
+	 * @return a list with the contents of the Stream
+	 */
+	public static COPY_ON_WRITE_LIST toList(JAVA_STREAM stream) {
+		return stream.collect(COPY_ON_WRITE_LIST::new, COPY_ON_WRITE_LIST::add, COPY_ON_WRITE_LIST::addAll);
+	}
+	
+#endif
+#endif
 	private void setArray(KEY_TYPE[] data) {
 		this.data = data;
 	}

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

@@ -3,12 +3,25 @@ package speiger.src.collections.PACKAGE.lists;
 import java.util.Arrays;
 #if TYPE_OBJECT
 import java.util.Comparator;
+#else if !TYPE_BOOLEAN
+import java.util.stream.JAVA_STREAM;
+import java.util.stream.StreamSupport;
 #endif
 import java.util.Collection;
 import java.util.NoSuchElementException;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if PRIMITIVES
+import java.util.function.Supplier;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+
+import speiger.src.collections.PACKAGE.utils.COLLECTIONS;
+#endif
 #endif
 #if TYPE_OBJECT
 import java.util.function.BiFunction;
@@ -23,6 +36,7 @@ import java.util.function.PREDICATE;
 #if !JDK_FUNCTION
 import java.util.function.JAVA_PREDICATE;
 #endif
+
 import java.util.function.JAVA_UNARY_OPERATOR;
 #endif
 
@@ -42,10 +56,6 @@ 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 && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
-import java.util.stream.JAVA_STREAM;
-import java.util.stream.StreamSupport;
-#endif
 #if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
@@ -126,6 +136,42 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 		data = Arrays.copyOfRange(a, offset, offset+length);
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ImmutableList
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, COLLECTION<T>, ImmutableObjectList<T>> toList() {
+		return Collector.of(COLLECTIONS::wrapper, COLLECTION::add, ImmutableObjectList::merge, E -> new IMMUTABLE_LIST<>(E.toArray((T[])new Object[E.size()])));
+	}
+
+	/**
+	 * Collects a Stream to a ImmutableList
+	 * @Type(T)
+	 * @return a list with the contents of the Stream
+	 */
+	public static <T> ImmutableObjectList KEY_GENERIC_TYPE toList(Stream<T> stream) {
+		return stream.collect(toList());
+	}
+	
+	private static <T> COLLECTION<T> merge(COLLECTION<T> a, COLLECTION<T> b) {
+		a.addAll(b);
+		return a;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ImmutableList
+	 * @return a list with the contents of the Stream
+	 */
+	public static IMMUTABLE_LIST toList(JAVA_STREAM stream) {
+		return new IMMUTABLE_LIST(stream.collect((Supplier<COLLECTION>)COLLECTIONS::wrapper, COLLECTION::add, COLLECTION::addAll).TO_ARRAY());
+	}
+	
+#endif
+#endif
 	@Override
 	public boolean add(KEY_TYPE e) { throw new UnsupportedOperationException(); }
 	@Override

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

@@ -13,6 +13,12 @@ import java.util.Iterator;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
 #endif
 import java.util.NoSuchElementException;
 #if SPLIT_ITERATOR_FEATURE
@@ -160,6 +166,42 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		for(int i = offset,m=offset+length;i<m;add(a[i++]));
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a LinkedList
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, ObjectLinkedList<T>, ObjectLinkedList<T>> toList() {
+		return Collector.of(ObjectLinkedList::new, ObjectLinkedList::add, ObjectLinkedList::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a LinkedList
+	 * @Type(T)
+	 * @return a list with the contents of the Stream
+	 */
+	public static <T> ObjectLinkedList KEY_GENERIC_TYPE toList(Stream<T> stream) {
+		return stream.collect(ObjectLinkedList::new, ObjectLinkedList::add, ObjectLinkedList::merge);
+	}
+	
+	private ObjectLinkedList<T> merge(ObjectLinkedList<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a LinkedList
+	 * @return a list with the contents of the Stream
+	 */
+	public static LINKED_LIST toList(JAVA_STREAM stream) {
+		return stream.collect(LINKED_LIST::new, LINKED_LIST::add, LINKED_LIST::addAll);
+	}
+	
+#endif
+#endif
 	@Override
 	public boolean add(KEY_TYPE e) {
 		add(size(), e);

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

@@ -238,13 +238,13 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			if(containsNull) {
 				VALUE_TYPE lastValue = values[nullIndex];
 				values[nullIndex] = value;
-				moveToFirstIndex(nullIndex);
+				moveToFirstIndex(nullIndex, false);
 				return lastValue;
 			}
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToFirstIndex(nullIndex);
+			moveToFirstIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
@@ -252,7 +252,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 				if(strategy.equals(keys[pos], key)) {
 					VALUE_TYPE lastValue = values[pos];
 					values[pos] = value;
-					moveToFirstIndex(pos);
+					moveToFirstIndex(pos, false);
 					return lastValue;
 				}
 				pos = ++pos & mask;
@@ -260,7 +260,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToFirstIndex(pos);
+			moveToFirstIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -272,13 +272,13 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			if(containsNull) {
 				VALUE_TYPE lastValue = values[nullIndex];
 				values[nullIndex] = value;
-				moveToLastIndex(nullIndex);
+				moveToLastIndex(nullIndex, false);
 				return lastValue;
 			}
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToLastIndex(nullIndex);
+			moveToLastIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
@@ -286,7 +286,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 				if(strategy.equals(keys[pos], key)) {
 					VALUE_TYPE lastValue = values[pos];
 					values[pos] = value;
-					moveToLastIndex(pos);
+					moveToLastIndex(pos, false);
 					return lastValue;
 				}
 				pos = ++pos & mask;
@@ -294,7 +294,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToLastIndex(pos);
+			moveToLastIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -307,7 +307,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToFirstIndex(nullIndex);
+			moveToFirstIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
@@ -318,7 +318,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToFirstIndex(pos);
+			moveToFirstIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -331,7 +331,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToLastIndex(nullIndex);
+			moveToLastIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
@@ -342,7 +342,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToLastIndex(pos);
+			moveToLastIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -353,7 +353,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		if(isEmpty() || strategy.equals(FIRST_ENTRY_KEY(), key)) return false;
 		if(strategy.equals(key, EMPTY_KEY_VALUE)) {
 			if(containsNull) {
-				moveToFirstIndex(nullIndex);
+				moveToFirstIndex(nullIndex, false);
 				return true;
 			}
 		}
@@ -361,7 +361,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
 			while(!strategy.equals(keys[pos], EMPTY_KEY_VALUE)) {
 				if(strategy.equals(keys[pos], key)) {
-					moveToFirstIndex(pos);
+					moveToFirstIndex(pos, false);
 					return true;
 				}
 				pos = ++pos & mask;
@@ -375,7 +375,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		if(isEmpty() || strategy.equals(LAST_ENTRY_KEY(), key)) return false;
 		if(strategy.equals(key, EMPTY_KEY_VALUE)) {
 			if(containsNull) {
-				moveToLastIndex(nullIndex);
+				moveToLastIndex(nullIndex, false);
 				return true;
 			}
 		}
@@ -383,7 +383,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			int pos = HashUtil.mix(strategy.hashCode(key)) & mask;
 			while(!strategy.equals(keys[pos], EMPTY_KEY_VALUE)) {
 				if(strategy.equals(keys[pos], key)) {
-					moveToLastIndex(pos);
+					moveToLastIndex(pos, false);
 					return true;
 				}
 				pos = ++pos & mask;
@@ -396,7 +396,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	public VALUE_TYPE getAndMoveToFirst(KEY_TYPE key) {
 		int index = findIndex(key);
 		if(index < 0) return getDefaultReturnValue();
-		moveToFirstIndex(index);
+		moveToFirstIndex(index, false);
 		return values[index];
 	}
 	
@@ -404,7 +404,7 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	public VALUE_TYPE getAndMoveToLast(KEY_TYPE key) {
 		int index = findIndex(key);
 		if(index < 0) return getDefaultReturnValue();
-		moveToLastIndex(index);
+		moveToLastIndex(index, false);
 		return values[index];
 	}
 	
@@ -580,8 +580,8 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		containsNull = false;
 	}
 	
-	protected void moveToFirstIndex(int startPos) {
-		if(size == 1 || firstIndex == startPos) return;
+	protected void moveToFirstIndex(int startPos, boolean adding) {
+		if(size == (adding ? 0 : 1) || firstIndex == startPos) return;
 		if(lastIndex == startPos) {
 			lastIndex = (int)(links[startPos] >>> 32);
 			links[lastIndex] |= 0xFFFFFFFFL;
@@ -598,8 +598,8 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 		firstIndex = startPos;
 	}
 	
-	protected void moveToLastIndex(int startPos) {
-		if(size == 1 || lastIndex == startPos) return;
+	protected void moveToLastIndex(int startPos, boolean adding) {
+		if(size == (adding ? 0 : 1) || lastIndex == startPos) return;
 		if(firstIndex == startPos) {
 			firstIndex = (int)links[startPos];
 			links[lastIndex] |= 0xFFFFFFFF00000000L;
@@ -713,6 +713,10 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 	}
 	
 	private class MapEntrySet extends AbstractObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> implements ORDERED_MAP.FastOrderedSet KEY_VALUE_GENERIC_TYPE {
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -1005,9 +1009,12 @@ public class LINKED_CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends CUSTOM_HASH_M
 			throw new UnsupportedOperationException();
 		}
 
+		@Override
+		public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }		
 		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
-
 		@Override
 		public boolean addAndMoveToLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 

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

@@ -215,13 +215,13 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			if(containsNull) {
 				VALUE_TYPE lastValue = values[nullIndex];
 				values[nullIndex] = value;
-				moveToFirstIndex(nullIndex);
+				moveToFirstIndex(nullIndex, false);
 				return lastValue;
 			}
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToFirstIndex(nullIndex);
+			moveToFirstIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
@@ -229,7 +229,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 				if(KEY_EQUALS(keys[pos], key)) {
 					VALUE_TYPE lastValue = values[pos];
 					values[pos] = value;
-					moveToFirstIndex(pos);
+					moveToFirstIndex(pos, false);
 					return lastValue;
 				}
 				pos = ++pos & mask;
@@ -237,7 +237,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToFirstIndex(pos);
+			moveToFirstIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -249,13 +249,13 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			if(containsNull) {
 				VALUE_TYPE lastValue = values[nullIndex];
 				values[nullIndex] = value;
-				moveToLastIndex(nullIndex);
+				moveToLastIndex(nullIndex, false);
 				return lastValue;
 			}
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToLastIndex(nullIndex);
+			moveToLastIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
@@ -263,7 +263,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 				if(KEY_EQUALS(keys[pos], key)) {
 					VALUE_TYPE lastValue = values[pos];
 					values[pos] = value;
-					moveToLastIndex(pos);
+					moveToLastIndex(pos, false);
 					return lastValue;
 				}
 				pos = ++pos & mask;
@@ -271,7 +271,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToLastIndex(pos);
+			moveToLastIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -284,18 +284,18 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToFirstIndex(nullIndex);
+			moveToFirstIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
-			while(KEY_EQUALS_NULL(key)) {
+			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
 				if(KEY_EQUALS(keys[pos], key)) return values[pos];
 				pos = ++pos & mask;
 			}
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToFirstIndex(pos);
+			moveToFirstIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -308,18 +308,18 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			values[nullIndex] = value;
 			containsNull = true;
 			onNodeAdded(nullIndex);
-			moveToLastIndex(nullIndex);
+			moveToLastIndex(nullIndex, true);
 		}
 		else {
 			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
-			while(KEY_EQUALS_NULL(key)) {
+			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
 				if(KEY_EQUALS(keys[pos], key)) return values[pos];
 				pos = ++pos & mask;
 			}
 			keys[pos] = key;
 			values[pos] = value;
 			onNodeAdded(pos);
-			moveToLastIndex(pos);
+			moveToLastIndex(pos, true);
 		}
 		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
 		return getDefaultReturnValue();
@@ -330,7 +330,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		if(isEmpty() || KEY_EQUALS(FIRST_ENTRY_KEY(), key)) return false;
 		if(KEY_EQUALS_NULL(key)) {
 			if(containsNull) {
-				moveToFirstIndex(nullIndex);
+				moveToFirstIndex(nullIndex, false);
 				return true;
 			}
 		}
@@ -338,7 +338,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
 			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
 				if(KEY_EQUALS(keys[pos], key)) {
-					moveToFirstIndex(pos);
+					moveToFirstIndex(pos, false);
 					return true;
 				}
 				pos = ++pos & mask;
@@ -352,7 +352,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		if(isEmpty() || KEY_EQUALS(LAST_ENTRY_KEY(), key)) return false;
 		if(KEY_EQUALS_NULL(key)) {
 			if(containsNull) {
-				moveToLastIndex(nullIndex);
+				moveToLastIndex(nullIndex, false);
 				return true;
 			}
 		}
@@ -360,7 +360,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 			int pos = HashUtil.mix(KEY_TO_HASH(key)) & mask;
 			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
 				if(KEY_EQUALS(keys[pos], key)) {
-					moveToLastIndex(pos);
+					moveToLastIndex(pos, false);
 					return true;
 				}
 				pos = ++pos & mask;
@@ -373,7 +373,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	public VALUE_TYPE getAndMoveToFirst(KEY_TYPE key) {
 		int index = findIndex(key);
 		if(index < 0) return getDefaultReturnValue();
-		moveToFirstIndex(index);
+		moveToFirstIndex(index, false);
 		return values[index];
 	}
 	
@@ -381,7 +381,7 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	public VALUE_TYPE getAndMoveToLast(KEY_TYPE key) {
 		int index = findIndex(key);
 		if(index < 0) return getDefaultReturnValue();
-		moveToLastIndex(index);
+		moveToLastIndex(index, false);
 		return values[index];
 	}
 	
@@ -584,8 +584,8 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		containsNull = false;
 	}
 	
-	protected void moveToFirstIndex(int startPos) {
-		if(size == 1 || firstIndex == startPos) return;
+	protected void moveToFirstIndex(int startPos, boolean adding) {
+		if(size == (adding ? 0 : 1) || firstIndex == startPos) return;
 		if(lastIndex == startPos) {
 			lastIndex = (int)(links[startPos] >>> 32);
 			links[lastIndex] |= 0xFFFFFFFFL;
@@ -602,8 +602,8 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		firstIndex = startPos;
 	}
 	
-	protected void moveToLastIndex(int startPos) {
-		if(size == 1 || lastIndex == startPos) return;
+	protected void moveToLastIndex(int startPos, boolean adding) {
+		if(size == (adding ? 0 : 1) || lastIndex == startPos) return;
 		if(firstIndex == startPos) {
 			firstIndex = (int)links[startPos];
 			links[lastIndex] |= 0xFFFFFFFF00000000L;
@@ -717,6 +717,10 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 	}
 	
 	private class MapEntrySet extends AbstractObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> implements ORDERED_MAP.FastOrderedSet KEY_VALUE_GENERIC_TYPE {
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -1004,6 +1008,12 @@ public class LINKED_HASH_MAP KEY_VALUE_GENERIC_TYPE extends HASH_MAP KEY_VALUE_G
 		@Override
 		public boolean add(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 
+		@Override
+		public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 

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

@@ -637,6 +637,10 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 	}
 	
 	private class MapEntrySet extends AbstractObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> implements ORDERED_MAP.FastOrderedSet KEY_VALUE_GENERIC_TYPE {
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -894,6 +898,12 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 			throw new UnsupportedOperationException();
 		}
 		
+		@Override
+		public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		
 		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 

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

@@ -868,6 +868,10 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	}
 	
 	private class MapEntrySet extends AbstractObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> implements ORDERED_MAP.FastOrderedSet KEY_VALUE_GENERIC_TYPE {
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -1126,6 +1130,10 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		@Override
 		public boolean add(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
+		public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }

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

@@ -473,6 +473,10 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 	}
 	
 	private class MapEntrySet extends AbstractObjectSet<MAP.Entry KEY_VALUE_GENERIC_TYPE> implements ORDERED_MAP.FastOrderedSet KEY_VALUE_GENERIC_TYPE {
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -637,7 +641,10 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		public boolean add(T o) {
 			throw new UnsupportedOperationException();
 		}
-		
+		@Override
+		public void addFirst(T o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(T o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(T o) { throw new UnsupportedOperationException(); }
 

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

@@ -9,6 +9,14 @@ import java.util.function.BiFunction;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
 #endif
 import java.util.NoSuchElementException;
 #if JDK_FUNCTION
@@ -105,6 +113,47 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 		this(MIN_CAPACITY);
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ArrayFIFOQueue
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, ARRAY_FIFO_QUEUE<T>, ARRAY_FIFO_QUEUE<T>> toQueue() {
+		return Collector.of(ARRAY_FIFO_QUEUE::new, ARRAY_FIFO_QUEUE::enqueue, ARRAY_FIFO_QUEUE::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a ArrayFIFOQueue
+	 * @Type(T)
+	 * @return a queue with the contents of the Stream
+	 */
+	public static <T> ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE toQueue(Stream<T> stream) {
+		return stream.collect(ARRAY_FIFO_QUEUE::new, ARRAY_FIFO_QUEUE::enqueue, ARRAY_FIFO_QUEUE::merge);
+	}
+	
+	private ARRAY_FIFO_QUEUE<T> merge(ARRAY_FIFO_QUEUE<T> a) {
+		enqueueAll(a.toArray((T[])new Object[a.size()]));
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ArrayFIFOQueue
+	 * @return a queue with the contents of the Stream
+	 */
+	public static ARRAY_FIFO_QUEUE toQueue(JAVA_STREAM stream) {
+		return stream.collect(ARRAY_FIFO_QUEUE::new, ARRAY_FIFO_QUEUE::enqueue, ARRAY_FIFO_QUEUE::merge);
+	}
+	
+	private ARRAY_FIFO_QUEUE merge(ARRAY_FIFO_QUEUE a) {
+		enqueueAll(a.TO_ARRAY());
+		return this;
+	}
+	
+#endif
+#endif
 	@Override
 	public ITERATOR KEY_GENERIC_TYPE iterator() {
 		return new Iter();

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

@@ -10,6 +10,14 @@ import java.util.function.BiFunction;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
 #endif
 #if JDK_FUNCTION
 import java.util.function.PREDICATE;
@@ -196,7 +204,47 @@ public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUE
 		queue.size = size;
 		return queue;
 	}
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ArrayPriorityQueue
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, ARRAY_PRIORITY_QUEUE<T>, ARRAY_PRIORITY_QUEUE<T>> toQueue() {
+		return Collector.of(ARRAY_PRIORITY_QUEUE::new, ARRAY_PRIORITY_QUEUE::enqueue, ARRAY_PRIORITY_QUEUE::merge);
+	}
 	
+	/**
+	 * Collects a Stream to a ArrayPriorityQueue
+	 * @Type(T)
+	 * @return a queue with the contents of the Stream
+	 */
+	public static <T> ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE toQueue(Stream<T> stream) {
+		return stream.collect(ARRAY_PRIORITY_QUEUE::new, ARRAY_PRIORITY_QUEUE::enqueue, ARRAY_PRIORITY_QUEUE::merge);
+	}
+	
+	private ARRAY_PRIORITY_QUEUE<T> merge(ARRAY_PRIORITY_QUEUE<T> a) {
+		enqueueAll(a.toArray((T[])new Object[a.size()]));
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ArrayPriorityQueue
+	 * @return a queue with the contents of the Stream
+	 */
+	public static ARRAY_PRIORITY_QUEUE toQueue(JAVA_STREAM stream) {
+		return stream.collect(ARRAY_PRIORITY_QUEUE::new, ARRAY_PRIORITY_QUEUE::enqueue, ARRAY_PRIORITY_QUEUE::merge);
+	}
+	
+	private ARRAY_PRIORITY_QUEUE merge(ARRAY_PRIORITY_QUEUE a) {
+		enqueueAll(a.TO_ARRAY());
+		return this;
+	}
+	
+#endif
+#endif
 	@Override
 	public void enqueue(KEY_TYPE e) {
 		if(size == array.length) array = Arrays.copyOf(array, (int)Math.max(Math.min((long)array.length + (long)(array.length >> 1), (long)SanityChecks.MAX_ARRAY_SIZE), size+1));

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

@@ -10,6 +10,14 @@ import java.util.function.BiFunction;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
+#endif
 #endif
 #if JDK_FUNCTION
 import java.util.function.PREDICATE;
@@ -199,6 +207,47 @@ public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEU
 		return queue;
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ArrayFIFOQueue
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, HEAP_PRIORITY_QUEUE<T>, HEAP_PRIORITY_QUEUE<T>> toQueue() {
+		return Collector.of(HEAP_PRIORITY_QUEUE::new, HEAP_PRIORITY_QUEUE::enqueue, HEAP_PRIORITY_QUEUE::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a ArrayFIFOQueue
+	 * @Type(T)
+	 * @return a queue with the contents of the Stream
+	 */
+	public static <T> HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE toQueue(Stream<T> stream) {
+		return stream.collect(HEAP_PRIORITY_QUEUE::new, HEAP_PRIORITY_QUEUE::enqueue, HEAP_PRIORITY_QUEUE::merge);
+	}
+	
+	private HEAP_PRIORITY_QUEUE<T> merge(HEAP_PRIORITY_QUEUE<T> a) {
+		enqueueAll(a.toArray((T[])new Object[a.size()]));
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ArrayFIFOQueue
+	 * @return a queue with the contents of the Stream
+	 */
+	public static HEAP_PRIORITY_QUEUE toQueue(JAVA_STREAM stream) {
+		return stream.collect(HEAP_PRIORITY_QUEUE::new, HEAP_PRIORITY_QUEUE::enqueue, HEAP_PRIORITY_QUEUE::merge);
+	}
+	
+	private HEAP_PRIORITY_QUEUE merge(HEAP_PRIORITY_QUEUE a) {
+		enqueueAll(a.TO_ARRAY());
+		return this;
+	}
+	
+#endif
+#endif
 	@Override
 	public int size() {
 		return size;

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

@@ -12,6 +12,12 @@ import java.util.NoSuchElementException;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
 #endif
 #if JDK_FUNCTION
 import java.util.function.PREDICATE;
@@ -214,6 +220,42 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		while(iterator.hasNext()) add(iterator.NEXT());
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a AVLTreeSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, AVL_TREE_SET<T>, AVL_TREE_SET<T>> toSet() {
+		return Collector.of(AVL_TREE_SET::new, AVL_TREE_SET::add, AVL_TREE_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a AVLTreeSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> AVL_TREE_SET KEY_GENERIC_TYPE toSet(Stream<T> stream) {
+		return stream.collect(AVL_TREE_SET::new, AVL_TREE_SET::add, AVL_TREE_SET::merge);
+	}
+	
+	private AVL_TREE_SET<T> merge(AVL_TREE_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a AVLTreeSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static AVL_TREE_SET toSet(JAVA_STREAM stream) {
+		return stream.collect(AVL_TREE_SET::new, AVL_TREE_SET::add, AVL_TREE_SET::addAll);
+	}
+	
+#endif
+#endif
 #if !TYPE_OBJECT
 	@Override
 	public void setDefaultMaxValue(KEY_TYPE value) { defaultMaxNotFound = value; }

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

@@ -74,6 +74,16 @@ public abstract class ABSTRACT_SET KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 			return set.iterator();
 		}
 		
+		@Override
+		public void addFirst(KEY_TYPE o) {
+			set.addLast(o);
+		}
+		
+		@Override
+		public void addLast(KEY_TYPE o) {
+			set.addFirst(o);
+		}
+		
 		@Override
 #if !TYPE_OBJECT
 		public boolean remove(KEY_TYPE o) {

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

@@ -10,6 +10,12 @@ import java.util.NoSuchElementException;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
 #endif
 import java.util.Set;
 #if JDK_FUNCTION
@@ -74,7 +80,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	 * @param array the array that should be used for set.
 	 */
 	public ARRAY_SET(KEY_TYPE[] array) {
-		this(array, array.length);
+		this(array, 0, array.length);
 	}
 	
 	/**
@@ -88,6 +94,18 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		addAll(array, length);
 	}
 	
+	/**
+	 * Constructur using initial Array
+	 * @param array the array that should be used for set.
+	 * @param offset the starting offset of where the array should be copied from
+	 * @param length the amount of elements present within the array
+	 * @throws NegativeArraySizeException if the length is negative
+	 */
+	public ARRAY_SET(KEY_TYPE[] array, int offset, int length) {
+		this(length);
+		addAll(array, offset, length);
+	}
+	
 	/**
 	 * A Helper constructor that allows to create a Set with exactly the same values as the provided collection.
 	 * @param c the elements that should be added to the set.
@@ -131,6 +149,42 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		for(ITERATOR KEY_GENERIC_TYPE iter = s.iterator();iter.hasNext();data[size++] = iter.NEXT());
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a ArraySet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, ARRAY_SET<T>, ARRAY_SET<T>> toList() {
+		return Collector.of(ARRAY_SET::new, ARRAY_SET::add, ARRAY_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a ArraySet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> ARRAY_SET KEY_GENERIC_TYPE toList(Stream<T> stream) {
+		return stream.collect(ARRAY_SET::new, ARRAY_SET::add, ARRAY_SET::merge);
+	}
+	
+	private ARRAY_SET<T> merge(ARRAY_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a ArraySet
+	 * @return a set with the contents of the Stream
+	 */
+	public static ARRAY_SET toList(JAVA_STREAM stream) {
+		return stream.collect(ARRAY_SET::new, ARRAY_SET::add, ARRAY_SET::addAll);
+	}
+	
+#endif
+#endif
 	@Override
 	public boolean add(KEY_TYPE o) {
 		int index = findIndex(o);
@@ -153,6 +207,25 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	}
 	
 #endif
+	@Override
+	public void addFirst(KEY_TYPE o) {
+		int index = findIndex(o);
+		if(index == -1) {
+			if(data.length == size) data = Arrays.copyOf(data, size == 0 ? 2 : size * 2);
+			System.arraycopy(data, 0, data, 1, size++);
+			data[0] = o;
+		}
+	}
+	
+	@Override
+	public void addLast(KEY_TYPE o) {
+		int index = findIndex(o);
+		if(index == -1) {
+			if(data.length == size) data = Arrays.copyOf(data, size == 0 ? 2 : size * 2);
+			data[size++] = o;
+		}
+	}
+	
 	@Override
 	public boolean addAndMoveToFirst(KEY_TYPE o) {
 		int index = findIndex(o);

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

@@ -264,6 +264,10 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 	@Override
 	public boolean addAll(COLLECTION KEY_GENERIC_TYPE c) { throw new UnsupportedOperationException(); }
 	@Override
+	public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+	@Override
+	public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+	@Override
 	public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 	@Override
 	public boolean addAndMoveToLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }

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

@@ -11,6 +11,12 @@ import java.util.Iterator;
 import java.util.NoSuchElementException;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
 #endif
 #if JDK_FUNCTION
 import java.util.function.PREDICATE;
@@ -241,6 +247,82 @@ public class LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE extends CUSTOM_HASH_SET KEY
 	}
 	
 #endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a LinkedCustomHashSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, LINKED_CUSTOM_HASH_SET<T>, LINKED_CUSTOM_HASH_SET<T>> toLinkedSet(STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return Collector.of(() -> new LINKED_CUSTOM_HASH_SET<>(strategy), LINKED_CUSTOM_HASH_SET::add, LINKED_CUSTOM_HASH_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a LinkedCustomHashSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> LINKED_CUSTOM_HASH_SET KEY_GENERIC_TYPE toLinkedSet(Stream<T> stream, STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return stream.collect(() -> new LINKED_CUSTOM_HASH_SET<>(strategy), LINKED_CUSTOM_HASH_SET::add, LINKED_CUSTOM_HASH_SET::merge);
+	}
+	
+	private LINKED_CUSTOM_HASH_SET<T> merge(LINKED_CUSTOM_HASH_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a LinkedCustomHashSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static LINKED_CUSTOM_HASH_SET toList(JAVA_STREAM stream, STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return stream.collect(() -> new LINKED_CUSTOM_HASH_SET(strategy), LINKED_CUSTOM_HASH_SET::add, LINKED_CUSTOM_HASH_SET::addAll);
+	}
+	
+#endif
+#endif
+	@Override
+	public void addFirst(KEY_TYPE o) {
+		if(strategy.equals(o, EMPTY_KEY_VALUE)) {
+			if(containsNull) return;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+			moveToFirstIndex(nullIndex);
+		}
+		else {
+			int pos = HashUtil.mix(strategy.hashCode(o)) & mask;
+			while(!strategy.equals(keys[pos], EMPTY_KEY_VALUE)) {
+				if(strategy.equals(keys[pos], o)) return;
+				pos = ++pos & mask;
+			}
+			keys[pos] = o;
+			onNodeAdded(pos);
+			moveToFirstIndex(pos);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+	}
+	
+	@Override
+	public void addLast(KEY_TYPE o) {
+		if(strategy.equals(o, EMPTY_KEY_VALUE)) {
+			if(containsNull) return;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+		}
+		else {
+			int pos = HashUtil.mix(strategy.hashCode(o)) & mask;
+			while(!strategy.equals(keys[pos], EMPTY_KEY_VALUE)) {
+				if(strategy.equals(keys[pos], o)) return;
+				pos = ++pos & mask;
+			}
+			keys[pos] = o;
+			onNodeAdded(pos);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+	}
+	
 	@Override
 	public boolean addAndMoveToFirst(KEY_TYPE o) {
 		if(strategy.equals(o, EMPTY_KEY_VALUE)) {

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

@@ -7,6 +7,12 @@ import java.util.NoSuchElementException;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
 #endif
 #if TYPE_OBJECT
 import java.util.function.Consumer;
@@ -212,6 +218,82 @@ public class LINKED_HASH_SET KEY_GENERIC_TYPE extends HASH_SET KEY_GENERIC_TYPE
 	}
 	
 #endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a LinkedHashSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, LINKED_HASH_SET<T>, LINKED_HASH_SET<T>> toLinkedSet() {
+		return Collector.of(LINKED_HASH_SET::new, LINKED_HASH_SET::add, LINKED_HASH_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a LinkedHashSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> LINKED_HASH_SET KEY_GENERIC_TYPE toLinkedSet(Stream<T> stream) {
+		return stream.collect(LINKED_HASH_SET::new, LINKED_HASH_SET::add, LINKED_HASH_SET::merge);
+	}
+	
+	private LINKED_HASH_SET<T> merge(LINKED_HASH_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a LinkedHashSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static LINKED_HASH_SET toLinkedSet(JAVA_STREAM stream) {
+		return stream.collect(LINKED_HASH_SET::new, LINKED_HASH_SET::add, LINKED_HASH_SET::addAll);
+	}
+	
+#endif
+#endif
+	@Override
+	public void addFirst(KEY_TYPE o) {
+		if(KEY_EQUALS_NULL(o)) {
+			if(containsNull) return;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+			moveToFirstIndex(nullIndex);
+		}
+		else {
+			int pos = HashUtil.mix(KEY_TO_HASH(o)) & mask;
+			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
+				if(KEY_EQUALS(keys[pos], o)) return;
+				pos = ++pos & mask;
+			}
+			keys[pos] = o;
+			onNodeAdded(pos);
+			moveToFirstIndex(pos);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+	}
+	
+	@Override
+	public void addLast(KEY_TYPE o) {
+		if(KEY_EQUALS_NULL(o)) {
+			if(containsNull) return;
+			containsNull = true;
+			onNodeAdded(nullIndex);
+		}
+		else {
+			int pos = HashUtil.mix(KEY_TO_HASH(o)) & mask;
+			while(KEY_EQUALS_NOT_NULL(keys[pos])) {
+				if(KEY_EQUALS(keys[pos], o)) return;
+				pos = ++pos & mask;
+			}
+			keys[pos] = o;
+			onNodeAdded(pos);
+		}
+		if(size++ >= maxFill) rehash(HashUtil.arraySize(size+1, loadFactor));
+	}
+	
 	@Override
 	public boolean addAndMoveToFirst(KEY_TYPE o) {
 		if(KEY_EQUALS_NULL(o)) {

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

@@ -8,6 +8,12 @@ import java.util.NoSuchElementException;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
 #endif
 #if TYPE_OBJECT
 import java.util.function.Consumer;
@@ -257,6 +263,42 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		while(iterator.hasNext()) add(iterator.NEXT());
 	}
 	
+#endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a CustomHashSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, CUSTOM_HASH_SET<T>, CUSTOM_HASH_SET<T>> toSet(STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return Collector.of(() -> new CUSTOM_HASH_SET<>(strategy), CUSTOM_HASH_SET::add, CUSTOM_HASH_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a CustomHashSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> CUSTOM_HASH_SET KEY_GENERIC_TYPE toSet(Stream<T> stream, STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return stream.collect(() -> new CUSTOM_HASH_SET<>(strategy), CUSTOM_HASH_SET::add, CUSTOM_HASH_SET::merge);
+	}
+	
+	private CUSTOM_HASH_SET<T> merge(CUSTOM_HASH_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a CustomHashSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static CUSTOM_HASH_SET toSet(JAVA_STREAM stream, STRATEGY KEY_SUPER_GENERIC_TYPE strategy) {
+		return stream.collect(() -> new CUSTOM_HASH_SET(strategy), CUSTOM_HASH_SET::add, CUSTOM_HASH_SET::addAll);
+	}
+	
+#endif
 #endif
 	/**
 	 * Helper getter function to get the current strategy

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

@@ -8,6 +8,12 @@ import java.util.NoSuchElementException;
 import java.util.Objects;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
 #endif
 #if TYPE_OBJECT
 import java.util.function.Consumer;
@@ -224,6 +230,42 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		while(iterator.hasNext()) add(iterator.NEXT());
 	}
 	
+#endif
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a HashSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, HASH_SET<T>, HASH_SET<T>> toSet() {
+		return Collector.of(HASH_SET::new, HASH_SET::add, HASH_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a HashSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> HASH_SET KEY_GENERIC_TYPE toSet(Stream<T> stream) {
+		return stream.collect(HASH_SET::new, HASH_SET::add, HASH_SET::merge);
+	}
+	
+	private HASH_SET<T> merge(HASH_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a HashSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static HASH_SET toSet(JAVA_STREAM stream) {
+		return stream.collect(HASH_SET::new, HASH_SET::add, HASH_SET::addAll);
+	}
+	
+#endif
 #endif
 	@Override
 	public boolean add(KEY_TYPE o) {

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

@@ -5,6 +5,7 @@ import java.util.SequencedSet;
 
 #endif
 import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
+import speiger.src.collections.PACKAGE.collections.ORDERED_COLLECTION;
 #if SPLIT_ITERATOR_FEATURE
 import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
 import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
@@ -23,9 +24,9 @@ import speiger.src.collections.PACKAGE.utils.SETS;
  * @Type(T)
  */
 #if JAVA_VERSION>=21
-public interface ORDERED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE, SequencedSet<CLASS_TYPE>
+public interface ORDERED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE, ORDERED_COLLECTION KEY_GENERIC_TYPE, SequencedSet<CLASS_TYPE>
 #else
-public interface ORDERED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE
+public interface ORDERED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE, ORDERED_COLLECTION KEY_GENERIC_TYPE
 #endif
 {
 	/**

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

@@ -4,6 +4,12 @@ import java.util.Collection;
 import java.util.Collections;
 #if JDK_TYPE
 import java.util.OPTIONAL;
+#if !TYPE_OBJECT
+import java.util.stream.JAVA_STREAM;
+#else
+import java.util.stream.Stream;
+import java.util.stream.Collector;
+#endif
 #endif
 #if TYPE_OBJECT
 import java.util.Comparator;
@@ -214,6 +220,42 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		while(iterator.hasNext()) add(iterator.NEXT());
 	}
 	
+#if JDK_TYPE && SPLIT_ITERATOR_FEATURE && STREAM_FEATURE
+#if TYPE_OBJECT
+	/**
+	 * Creates a Collector for a RBTreeSet
+	 * @Type(T)
+	 * @return a collector
+	 */
+	public static <T> Collector<T, RB_TREE_SET<T>, RB_TREE_SET<T>> toSet() {
+		return Collector.of(RB_TREE_SET::new, RB_TREE_SET::add, RB_TREE_SET::merge);
+	}
+	
+	/**
+	 * Collects a Stream to a RBTreeSet
+	 * @Type(T)
+	 * @return a set with the contents of the Stream
+	 */
+	public static <T> RB_TREE_SET KEY_GENERIC_TYPE toSet(Stream<T> stream) {
+		return stream.collect(RB_TREE_SET::new, RB_TREE_SET::add, RB_TREE_SET::merge);
+	}
+	
+	private RB_TREE_SET<T> merge(RB_TREE_SET<T> a) {
+		addAll(a);
+		return this;
+	}
+	
+#else
+	/**
+	 * Collects a Stream to a RBTreeSet
+	 * @return a set with the contents of the Stream
+	 */
+	public static RB_TREE_SET toSet(JAVA_STREAM stream) {
+		return stream.collect(RB_TREE_SET::new, RB_TREE_SET::add, RB_TREE_SET::addAll);
+	}
+	
+#endif
+#endif
 #if !TYPE_OBJECT
 	@Override
 	public void setDefaultMaxValue(KEY_TYPE value) { defaultMaxNotFound = value; }

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

@@ -17,6 +17,7 @@ import java.util.function.IntFunction;
 #endif
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
 import speiger.src.collections.utils.SanityChecks;
+import speiger.src.collections.utils.Swapper;
 
 /**
  * A Helper class for Arrays
@@ -337,6 +338,69 @@ public class ARRAYS
 		return array;
 	}
 	
+	/**
+	 * Simple Shuffle method for Arrays.
+	 * With a Callback for indirect shuffling
+	 * @param array the elements that should be shuffled
+	 * @param swapper the callback on the swaps
+	 * @ArrayType(T)
+	 * @note This uses the SanityChecks#getRandom
+	 * @return the provided sorted array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectShuffle(KEY_TYPE[] array, Swapper swapper) {
+		return indirectShuffle(array, SanityChecks.getRandom(), swapper);
+	}
+	
+	/**
+	 * Simple Shuffle method for Arrays.
+	 * With a Callback for indirect shuffling
+	 * @param array the elements that should be shuffled
+	 * @param random the Random Number Generator that should be used for the shuffling
+	 * @param swapper the callback on the swaps
+	 * @ArrayType(T)
+	 * @return the provided sorted array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectShuffle(KEY_TYPE[] array, RANDOM random, Swapper swapper) {
+		return indirectShuffle(array, 0, array.length, random, swapper);
+	}
+	
+	/**
+	 * Simple Shuffle method for Arrays.
+	 * With a Callback for indirect shuffling
+	 * @param array the elements that should be shuffled
+	 * @param length the length of the array
+	 * @param random the Random Number Generator that should be used for the shuffling
+	 * @param swapper the callback on the swaps
+	 * @ArrayType(T)
+	 * @return the provided sorted array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectShuffle(KEY_TYPE[] array, int length, RANDOM random, Swapper swapper) {
+		return indirectShuffle(array, 0, length, random, swapper);
+	}
+	
+	/**
+	 * Simple Shuffle method for Arrays.
+	 * With a Callback for indirect shuffling
+	 * @param array the elements that should be shuffled
+	 * @param offset the start array
+	 * @param length the length of the array
+	 * @param random the Random Number Generator that should be used for the shuffling
+	 * @param swapper the callback on the swaps
+	 * @ArrayType(T)
+	 * @return the provided sorted array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectShuffle(KEY_TYPE[] array, int offset, int length, RANDOM random, Swapper swapper) {
+		for(int i = length-1; i>=0;i--) {
+			int j = offset + i;
+			int p = offset + random.nextInt(i + 1);
+			swapper.swap(j, p);
+			KEY_TYPE t = array[j];
+			array[j] = array[p];
+			array[p] = t;
+		}
+		return array;
+	}
+	
 	/**
 	 * Simple Array Reversal method
 	 * @param array the Array that should flip
@@ -575,6 +639,55 @@ public class ARRAYS
 		}
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Insertion Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @return input array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectInsertionSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectInsertionSort(array, 0, array.length, comp, swapper);
+		return array;
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Insertion Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectInsertionSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectInsertionSort(array, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Insertion Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectInsertionSort(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		for (int i = from+1;i<to; i++) {
+			KEY_TYPE current = array[i];
+			int j = i - 1;
+			while(j >= from && comp.compare(current, array[j]) < 0) {
+				swapper.swap(j+1, j);
+				array[j+1] = array[j--];
+			}
+			array[j+1] = current;
+		}
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using InsertionSort, 
 	 * @param array the array that needs to be sorted
@@ -661,6 +774,60 @@ public class ARRAYS
 		}
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Selection Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @return input array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectSelectionSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectSelectionSort(array, 0, array.length, comp, swapper);
+		return array;
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Selection Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectSelectionSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectSelectionSort(array, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Selection Sort,
+	 * On top of that allows to sort other things along with it.
+	 * @param array the array that needs to be sorted
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectSelectionSort(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		for (int i = from; i < to; i++) {
+			KEY_TYPE min = array[i];
+			int minId = i;
+			for(int j = i+1; j < to; j++) {
+				if(comp.compare(array[j], min) < 0) {
+					min = array[j];
+					minId = j;
+				}
+			}
+			swapper.swap(i, minId);
+			KEY_TYPE temp = array[i];
+			array[i] = min;
+			array[minId] = temp;
+		}
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using Selection Sort, 
 	 * @param array the array that needs to be sorted
@@ -760,6 +927,72 @@ public class ARRAYS
 		}
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @return input array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectMergeSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectMergeSort(array, null, 0, array.length, comp, swapper);
+		return array;
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectMergeSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectMergeSort(array, null, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param supp the auxillary array that is used to simplify the sorting
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectMergeSort(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		if(to - from < BASE_THRESHOLD) {
+			indirectInsertionSort(array, from, to, comp, swapper);
+			return;
+		}
+		if(supp == null) supp = Arrays.copyOf(array, to);
+		int mid = (from + to) >>> 1;
+		indirectMergeSort(supp, array, from, mid, comp, swapper);
+		indirectMergeSort(supp, array, mid, to, comp, swapper);
+		if(comp.compare(supp[mid - 1], supp[mid]) <= 0)
+		{
+			System.arraycopy(supp, from, array, from, to - from);
+			return;
+		}
+		for(int p = from, q = mid;from < to;from++) {
+			if(q >= to || p < mid && comp.compare(supp[p], supp[q]) < 0) {
+				swapper.swap(from, p);
+				array[from] = supp[p++];
+				continue;
+			}
+			swapper.swap(from, q);
+			array[from] = supp[q++];
+		}
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using Merge Sort, 
 	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
@@ -856,6 +1089,56 @@ public class ARRAYS
 		mergeSort(array, supp, from, to, comp);
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using a Parallel Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelMergeSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectParallelMergeSort(array, null, 0, array.length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Parallel Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param swapper the callback which elements were swapped
+	 * @param comp the Comparator that decides the sorting order
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelMergeSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectParallelMergeSort(array, null, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Parallel Merge Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
+	 * @param array the array that needs to be sorted
+	 * @param supp the auxillary array that is used to simplify the sorting
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelMergeSort(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		if(SanityChecks.canParallelTask() && to - from >= PARALLEL_THRESHOLD) {
+			SanityChecks.invokeTask(new MergeSortActionCompSwapBRACES(array, supp, from, to, comp, swapper));
+			return;
+		}
+		indirectMergeSort(array, supp, from, to, comp, swapper);
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using Parallel Merge Sort, 
 	 * This implementation was copied from <a href="https://github.com/vigna/fastutil">FastUtil</a> with a couple custom optimizations
@@ -1209,6 +1492,73 @@ public class ARRAYS
 		if((length = d - c) > 1) quickSort(array, to - length, to, comp);
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @return input array
+	 */
+	public static GENERIC_KEY_BRACES KEY_TYPE[] indirectQuickSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectQuickSort(array, 0, array.length, comp, swapper);
+		return array;
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectQuickSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectQuickSort(array, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 */
+	public static GENERIC_KEY_BRACES void indirectQuickSort(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		int length = to - from;
+		if(length <= 0) return;
+		if(length < BASE_THRESHOLD) {
+			indirectSelectionSort(array, from, to, comp, swapper);
+			return;			
+		}
+		KEY_TYPE pivot = array[length > 128 ? subMedium(array, from, from + (length / 2), to - 1, length / 8, comp) : medium(array, from, from + (length / 2), to - 1, comp)];
+		int a = from, b = a, c = to - 1, d = c;
+		for(int compare;;swap(array, b++, c--, swapper)) {
+			for(;b<=c && (compare = comp.compare(array[b], pivot)) <= 0;b++) {
+				if(compare == 0) swap(array, a++, b, swapper);
+			}
+			for(;c>=b && (compare = comp.compare(array[c], pivot)) >= 0;c--) {
+				if(compare == 0) swap(array, c, d--, swapper);
+			}
+			if(b>c) break;
+		}
+		swap(array, from, b, Math.min(a - from, b - a), swapper); 
+		swap(array, b, to, Math.min(d - c, to - d - 1), swapper);
+		if((length = b - a) > 1) indirectQuickSort(array, from, from + length, comp, swapper);
+		if((length = d - c) > 1) indirectQuickSort(array, to - length, to, comp, swapper);
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using Quick Sort, 
 	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
@@ -1313,6 +1663,58 @@ public class ARRAYS
 		quickSort(array, from, to, comp);
 	}
 	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Parallel Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelQuickSort(KEY_TYPE[] array, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectParallelQuickSort(array, 0, array.length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Parallel Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param length the maxmium size of the array to be sorted
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelQuickSort(KEY_TYPE[] array, int length, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		indirectParallelQuickSort(array, 0, length, comp, swapper);
+	}
+	
+	/**
+	 * Sorts the specified range of elements according to the order induced by the specified comparator using Parallel Quick Sort,
+	 * On top of that allows to sort other things along with it.
+	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
+	 * and that sorting Algorithm is based on the tuned quicksort adapted from Jon L. Bentley and M. DouglasMcIlroy, "Engineering a Sort Function", Software: Practice and Experience, 23(11), pages1249−1265, 1993. 
+	 * @param array the array that needs to be sorted
+	 * @param from where the array should be sorted from
+	 * @param to where the array should be sorted to
+	 * @param comp the Comparator that decides the sorting order
+	 * @param swapper the callback which elements were swapped
+	 * @ArrayType(T)
+	 * @note This parallelization is invoked through {@link SanityChecks#invokeTask} which the threadpool can be changed as needed
+	 */
+	public static GENERIC_KEY_BRACES void indirectParallelQuickSort(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+		if(SanityChecks.canParallelTask() && to - from >= PARALLEL_THRESHOLD) {
+			SanityChecks.invokeTask(new QuickSortActionCompSwapBRACES(array, from, to, comp, swapper));
+			return;
+		}
+		indirectQuickSort(array, from, to, comp, swapper);
+	}
+	
 	/**
 	 * Sorts an array according to the natural ascending order using Parallel Quick Sort, 
 	 * This implementation is a custom of <a href="https://github.com/vigna/fastutil">FastUtil</a> quicksort but with a different code structure,
@@ -1367,6 +1769,18 @@ public class ARRAYS
 		for(int i = 0;i<length;i++,swap(a, from++, to++));
 	}
 	
+	static GENERIC_KEY_BRACES void swap(KEY_TYPE[] a, int from, int to, Swapper swapper) {
+		swapper.swap(from, to);
+		KEY_TYPE t = a[from];
+		a[from] = a[to];
+		a[to] = t;
+	}
+	
+	static GENERIC_KEY_BRACES void swap(KEY_TYPE[] a, int from, int to, int length, Swapper swapper) {
+		to -= length;
+		for(int i = 0;i<length;i++,swap(a, from++, to++, swapper));
+	}
+	
 	static GENERIC_KEY_BRACES int subMedium(KEY_TYPE[] data, int a, int b, int c, int length, COMPARATOR KEY_GENERIC_TYPE comp) {
 		return medium(data, medium(data, a, a + length, a + (length * 2), comp), medium(data, b - length, b, b + length, comp), medium(data, c - (length * 2), c - length, c, comp), comp);
 	}
@@ -1389,16 +1803,14 @@ public class ARRAYS
 		int from;
 		int to;
 		
-		QuickSortAction(KEY_TYPE[] array, int from, int to)
-		{
+		QuickSortAction(KEY_TYPE[] array, int from, int to) {
 			this.array = array;
 			this.from = from;
 			this.to = to;
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			int length = to - from;
 			if(length <= 0) return;
 			if(length < BASE_THRESHOLD) {
@@ -1431,8 +1843,7 @@ public class ARRAYS
 		int to;
 		COMPARATOR KEY_GENERIC_TYPE comp;
 		
-		QuickSortActionComp(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp)
-		{
+		QuickSortActionComp(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp) {
 			this.array = array;
 			this.from = from;
 			this.to = to;
@@ -1440,8 +1851,7 @@ public class ARRAYS
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			int length = to - from;
 			if(length <= 0) return;
 			if(length < BASE_THRESHOLD) {
@@ -1467,6 +1877,49 @@ public class ARRAYS
 		}
 	}
 	
+	static class QuickSortActionCompSwap KEY_GENERIC_TYPE extends RecursiveAction {
+		private static final long serialVersionUID = 0L;
+		KEY_TYPE[] array;
+		int from;
+		int to;
+		COMPARATOR KEY_GENERIC_TYPE comp;
+		Swapper swapper;
+		
+		QuickSortActionCompSwap(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+			this.array = array;
+			this.from = from;
+			this.to = to;
+			this.comp = comp;
+			this.swapper = swapper;
+		}
+		
+		@Override
+		protected void compute() {
+			int length = to - from;
+			if(length <= 0) return;
+			if(length < BASE_THRESHOLD) {
+				indirectSelectionSort(array, from, to, comp, swapper);
+				return;			
+			}
+			KEY_TYPE pivot = array[length > 128 ? subMedium(array, from, from + (length / 2), to - 1, length / 8, comp) : medium(array, from, from + (length / 2), to - 1, comp)];
+			int a = from, b = a, c = to - 1, d = c;
+			for(int compare;;swap(array, b++, c--, swapper)) {
+				for(;b<=c && (compare = comp.compare(array[b], pivot)) <= 0;b++) {
+					if(compare == 0) swap(array, a++, b, swapper);
+				}
+				for(;c>=b && (compare = comp.compare(array[c], pivot)) >= 0;c--) {
+					if(compare == 0) swap(array, c, d--, swapper);
+				}
+				if(b>c) break;
+			}
+			swap(array, from, b, Math.min(a - from, b - a), swapper); 
+			swap(array, b, to, Math.min(d - c, to - d - 1), swapper);
+			if(b - a > 1 && d - c > 1) invokeAll(new QuickSortActionCompSwapBRACES(array, from, from + (b - a), comp, swapper), new QuickSortActionCompSwapBRACES(array, to - (d - c), to, comp, swapper));
+			else if(b - a > 1) new QuickSortActionCompSwapBRACES(array, from, from + (b - a), comp, swapper).invoke();
+			else if(d - c > 1) new QuickSortActionCompSwapBRACES(array, to - (d - c), to, comp, swapper).invoke();
+		}
+	}
+	
 	static class MergeSortAction KEY_GENERIC_TYPE extends RecursiveAction {
 		private static final long serialVersionUID = 0L;
 		KEY_TYPE[] array;
@@ -1474,8 +1927,7 @@ public class ARRAYS
 		int from;
 		int to;
 		
-		MergeSortAction(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to)
-		{
+		MergeSortAction(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to) {
 			this.array = array;
 			this.supp = supp;
 			this.from = from;
@@ -1483,8 +1935,7 @@ public class ARRAYS
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			if(to - from < BASE_THRESHOLD) {
 				insertionSort(array, from, to);
 				return;
@@ -1512,8 +1963,7 @@ public class ARRAYS
 		int to;
 		COMPARATOR KEY_GENERIC_TYPE comp;
 		
-		MergeSortActionComp(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp)
-		{
+		MergeSortActionComp(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp) {
 			this.array = array;
 			this.supp = supp;
 			this.from = from;
@@ -1522,8 +1972,7 @@ public class ARRAYS
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			if(to - from < BASE_THRESHOLD) {
 				insertionSort(array, from, to, comp);
 				return;
@@ -1543,22 +1992,64 @@ public class ARRAYS
 		}
 	}
 	
+	static class MergeSortActionCompSwap KEY_GENERIC_TYPE extends RecursiveAction {
+		private static final long serialVersionUID = 0L;
+		KEY_TYPE[] array;
+		KEY_TYPE[] supp;
+		int from;
+		int to;
+		COMPARATOR KEY_GENERIC_TYPE comp;
+		Swapper swapper;
+		
+		MergeSortActionCompSwap(KEY_TYPE[] array, KEY_TYPE[] supp, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp, Swapper swapper) {
+			this.array = array;
+			this.supp = supp;
+			this.from = from;
+			this.to = to;
+			this.comp = comp;
+			this.swapper = swapper;
+		}
+		
+		@Override
+		protected void compute() {
+			if(to - from < BASE_THRESHOLD) {
+				indirectInsertionSort(array, from, to, comp, swapper);
+				return;
+			}
+			if(supp == null) supp = Arrays.copyOf(array, to);
+			int mid = (from + to) >>> 1;
+			invokeAll(new MergeSortActionCompSwapBRACES(supp, array, from, mid, comp, swapper), new MergeSortActionCompSwapBRACES(supp, array, mid, to, comp, swapper));
+			if(comp.compare(supp[mid - 1], supp[mid]) <= 0)
+			{
+				System.arraycopy(supp, from, array, from, to - from);
+				return;
+			}
+			for(int p = from, q = mid;from < to;from++) {
+				if(q >= to || p < mid && comp.compare(supp[p], supp[q]) < 0) {
+					swapper.swap(from, p);
+					array[from] = supp[p++];
+					continue;
+				}
+				swapper.swap(from, q);
+				array[from] = supp[q++];
+			}
+		}
+	}
+	
 	static class MemFreeMergeSortAction KEY_GENERIC_TYPE extends RecursiveAction {
 		private static final long serialVersionUID = 0L;
 		KEY_TYPE[] array;
 		int from;
 		int to;
 		
-		MemFreeMergeSortAction(KEY_TYPE[] array, int from, int to)
-		{
+		MemFreeMergeSortAction(KEY_TYPE[] array, int from, int to) {
 			this.array = array;
 			this.from = from;
 			this.to = to;
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			if(to - from < BASE_THRESHOLD) {
 				insertionSort(array, from, to);
 				return;
@@ -1604,8 +2095,7 @@ public class ARRAYS
 		int to;
 		COMPARATOR KEY_GENERIC_TYPE comp;
 		
-		MemFreeMergeSortActionComp(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp)
-		{
+		MemFreeMergeSortActionComp(KEY_TYPE[] array, int from, int to, COMPARATOR KEY_GENERIC_TYPE comp) {
 			this.array = array;
 			this.from = from;
 			this.to = to;
@@ -1613,8 +2103,7 @@ public class ARRAYS
 		}
 		
 		@Override
-		protected void compute()
-		{
+		protected void compute() {
 			if(to - from < BASE_THRESHOLD) {
 				insertionSort(array, from, to, comp);
 				return;

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

@@ -7,6 +7,11 @@ import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 import java.util.concurrent.locks.LockSupport;
 import java.util.function.Consumer;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#else
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 #if !TYPE_OBJECT
 
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
@@ -299,9 +304,8 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 	 * @param operator that reduces the elements.
 	 * @return self with the reduce action applied
 	 */
-	public ASYNC_BUILDER KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
-		task = new SimpleReduceTaskBRACES(iterable.iterator(), operator);
-		return this;
+	public ObjectAsyncBuilder<OPTIONAL KEY_GENERIC_TYPE> reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+		return new ObjectAsyncBuilder<>(new SimpleReduceTaskBRACES(iterable.iterator(), operator));
 	}
 	
 #if TYPE_OBJECT
@@ -435,9 +439,8 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 	 * @param filter that decides the desired elements
 	 * @return self with the findFirst function applied
 	 */
-	public ASYNC_BUILDER KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
-		task = new FindFirstTaskBRACES(iterable.iterator(), filter);
-		return this;
+	public ObjectAsyncBuilder<OPTIONAL KEY_GENERIC_TYPE> findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+		return new ObjectAsyncBuilder<>(new FindFirstTaskBRACES(iterable.iterator(), filter));
 	}
 	
 #if INT_ASYNC_MODULE
@@ -590,7 +593,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 	}
 	
 #endif
-	private static class SimpleReduceTask KEY_GENERIC_TYPE extends BASE_TASK KEY_GENERIC_TYPE
+	private static class SimpleReduceTask KEY_GENERIC_TYPE extends BaseObjectTask<OPTIONAL KEY_GENERIC_TYPE>
 	{
 		ITERATOR KEY_GENERIC_TYPE iter;
 		UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator;
@@ -600,6 +603,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		public SimpleReduceTask(ITERATOR KEY_GENERIC_TYPE iter, UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 			this.iter = iter;
 			this.operator = operator;
+			this.setResult(OPTIONAL.empty());
 		}
 		
 		@Override
@@ -614,7 +618,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 				}
 			}
 			if(!iter.hasNext()) {
-				setResult(value);
+				setResult(OPTIONAL.GET_OPTIONAL(value));
 				return true;
 			}
 			return false;
@@ -689,7 +693,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 	}
 	
 #endif
-	private static class FindFirstTask KEY_GENERIC_TYPE extends BASE_TASK KEY_GENERIC_TYPE
+	private static class FindFirstTask KEY_GENERIC_TYPE extends BaseObjectTask<OPTIONAL KEY_GENERIC_TYPE>
 	{
 		ITERATOR KEY_GENERIC_TYPE iter;
 		PREDICATE KEY_GENERIC_TYPE filter;
@@ -697,6 +701,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 		public FindFirstTask(ITERATOR KEY_GENERIC_TYPE iter, PREDICATE KEY_GENERIC_TYPE filter) {
 			this.iter = iter;
 			this.filter = filter;
+			this.setResult(OPTIONAL.empty());
 		}
 
 		@Override
@@ -704,7 +709,7 @@ public class ASYNC_BUILDER KEY_GENERIC_TYPE
 			while(shouldRun() && iter.hasNext()) {
 				KEY_TYPE entry = iter.NEXT();
 				if(filter.test(iter.NEXT())) {
-					setResult(entry);
+					setResult(OPTIONAL.GET_OPTIONAL(entry));
 					return true;
 				}
 			}

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

@@ -147,7 +147,10 @@ public class COLLECTIONS
 		return new SingletonCollectionBRACES(element);
 	}
 	
-	protected static GENERIC_KEY_BRACES CollectionWrapper KEY_GENERIC_TYPE wrapper() {
+	/**
+	 * Internal Use mainly. Its a collection wrapper with 0 dependencies for those actions where a collector is needed.
+	 */
+	public static GENERIC_KEY_BRACES CollectionWrapper KEY_GENERIC_TYPE wrapper() {
 		return new CollectionWrapperBRACES();
 	}
 	

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

@@ -360,6 +360,10 @@ public class SETS
 			s = c;
 		}
 		
+		@Override
+		public void addFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
@@ -651,6 +655,10 @@ public class SETS
 			s = c;
 		}
 		
+		@Override
+		public void addFirst(KEY_TYPE o) { synchronized(mutex) { s.addFirst(o); } }
+		@Override
+		public void addLast(KEY_TYPE o) { synchronized(mutex) { s.addLast(o); } }
 		@Override
 		public boolean addAndMoveToFirst(KEY_TYPE o) { synchronized(mutex) { return s.addAndMoveToFirst(o); } }
 		@Override

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

@@ -755,6 +755,10 @@ public class MAPS
 			set = c;
 		}
 		
+		@Override
+		public void addFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
+		@Override
+		public void addLast(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override
 		public boolean addAndMoveToFirst(MAP.Entry KEY_VALUE_GENERIC_TYPE o) { throw new UnsupportedOperationException(); }
 		@Override

src/builder/resources/speiger/assets/testers/templates/builder/maps/OrderedMapTestSuiteBuilder.template

@@ -20,6 +20,7 @@ import speiger.src.testers.PACKAGE.generators.maps.TEST_ORDERED_MAP_GENERATOR;
 import speiger.src.testers.PACKAGE.impl.maps.DERIVED_MAP_GENERATORS;
 import speiger.src.testers.PACKAGE.tests.maps.FILE_KEY_TYPE2FILE_VALUE_TYPEOrderedMapMoveTester;
 import speiger.src.testers.PACKAGE.tests.maps.FILE_KEY_TYPE2FILE_VALUE_TYPEOrderedMapNavigationTester;
+import speiger.src.testers.PACKAGE.tests.maps.FILE_KEY_TYPE2FILE_VALUE_TYPEOrderedMapPutTester;
 #if !TYPE_OBJECT
 import speiger.src.testers.objects.builder.ObjectSetTestSuiteBuilder;
 import speiger.src.testers.objects.generators.TestObjectSetGenerator;
@@ -41,6 +42,7 @@ public class ORDERED_MAP_TEST_BUILDER KEY_VALUE_GENERIC_TYPE extends MAP_TEST_BU
 		List<Class<? extends AbstractTester>> testers = super.getTesters();
 		testers.add(FILE_KEY_TYPE2FILE_VALUE_TYPEOrderedMapMoveTester.class);
 		testers.add(FILE_KEY_TYPE2FILE_VALUE_TYPEOrderedMapNavigationTester.class);
+		testers.add(FILE_KEY_TYPE2FILE_VALUE_TYPEOrderedMapPutTester.class);
 		return testers;
 	}
 	
@@ -77,7 +79,7 @@ public class ORDERED_MAP_TEST_BUILDER KEY_VALUE_GENERIC_TYPE extends MAP_TEST_BU
 		features.addAll(parentBuilder.getFeatures());
 		features.remove(SpecialFeature.COPYING);
 		features.remove(SpecialFeature.CHILDREN_COPY);
-		return ORDERED_MAP_TEST_BUILDER.using(new DERIVED_MAP_GENERATORS.ReverseTestOrderedMapGenerator(delegate))
+		return ORDERED_MAP_TEST_BUILDER.using(new DERIVED_MAP_GENERATORS.ReverseTestOrderedMapGeneratorKV_BRACES(delegate))
 				.named(parentBuilder.getName() + " reversed").withFeatures(features)
 				.suppressing(parentBuilder.getSuppressedTests()).createTestSuite();
 	}

src/builder/resources/speiger/assets/testers/templates/impl/maps/MapConstructorTests.template

@@ -27,6 +27,8 @@ import speiger.src.collections.PACKAGE.maps.impl.concurrent.CONCURRENT_HASH_MAP;
 #if TYPE_OBJECT
 import speiger.src.collections.PACKAGE.maps.impl.misc.ENUM_MAP;
 import speiger.src.collections.PACKAGE.maps.impl.misc.LINKED_ENUM_MAP;
+import speiger.src.collections.PACKAGE.maps.impl.reference.REF_MAP;
+import speiger.src.collections.PACKAGE.maps.impl.reference.LINKED_REF_MAP;
 #endif
 
 import speiger.src.collections.PACKAGE.maps.impl.tree.RB_TREE_MAP;
@@ -134,6 +136,97 @@ public class MAP_CONSTRUCTOR_TESTS
 	}
 	
 #if TYPE_OBJECT
+	public static class RefMap extends FILE_KEY_TYPE2FILE_VALUE_TYPEMapConstructorTester KEY_VALUE_STRING_GENERIC_TYPE
+	{
+		public RefMap() {
+			setSimpleConstructor(REF_MAP::new);
+			setSizeConstructor(REF_MAP::new);
+			setPArrayConstructor(REF_MAP::new);
+#if !TYPE_OBJECT || !VALUE_OBJECT
+			setArrayConstructor(REF_MAP::new);
+#endif
+			setPMapConstructor(REF_MAP::new);
+			setMapConstructor(REF_MAP::new);
+		}
+	
+		@Test
+		public void testWrongLoadFactorSize() {
+			setSizeConstructor(T -> new REF_MAP KEY_VALUE_STRING_GENERIC_TYPE(T, 0F));
+			try {
+				testSizeConstructor_smallSize();
+				fail("A Constructor using a 0 LoadFactor should error");
+			} catch(IllegalStateException e) {}
+		
+			setSizeConstructor(T -> new REF_MAP KEY_VALUE_STRING_GENERIC_TYPE(T, 1F));
+			try {
+				testSizeConstructor_smallSize();
+				fail("A Constructor using a 1 LoadFactor should error");
+			} catch(IllegalStateException e) {}
+		}
+	
+#if TYPE_OBJECT
+		@Override
+		protected String[] createKeyElements() {
+			return Arrays.copyOfRange(StringSortTest.NAMES, 0, 100);
+		}
+		
+#endif
+#if VALUE_OBJECT
+		@Override
+		protected String[] createValueElements() {
+			return Arrays.copyOfRange(StringSortTest.NAMES, 100, 200);
+		}
+		
+#endif
+	}
+	
+	public static class LinkedRefMap extends FILE_KEY_TYPE2FILE_VALUE_TYPEMapConstructorTester KEY_VALUE_STRING_GENERIC_TYPE
+	{
+		public LinkedRefMap() {
+			setSimpleConstructor(LINKED_REF_MAP::new);
+			setSizeConstructor(LINKED_REF_MAP::new);
+			setPArrayConstructor(LINKED_REF_MAP::new);
+#if !TYPE_OBJECT || !VALUE_OBJECT
+			setArrayConstructor(LINKED_REF_MAP::new);
+#endif
+			setPMapConstructor(LINKED_REF_MAP::new);
+			setMapConstructor(LINKED_REF_MAP::new);
+		}
+		
+		@Test
+		public void testWrongLoadFactorSize() {
+			setSizeConstructor(T -> new LINKED_REF_MAP KEY_VALUE_STRING_GENERIC_TYPE(T, 0F));
+			try {
+				testSizeConstructor_smallSize();
+				fail("A Constructor using a 0 LoadFactor should error");
+			} catch(IllegalStateException e) {
+			}
+			
+			setSizeConstructor(T -> new LINKED_REF_MAP KEY_VALUE_STRING_GENERIC_TYPE(T, 1F));
+			try {
+				testSizeConstructor_smallSize();
+				fail("A Constructor using a 1 LoadFactor should error");
+			} catch(IllegalStateException e) {
+			}
+		}
+		
+#if TYPE_OBJECT
+		@Override
+		protected String[] createKeyElements() {
+			return Arrays.copyOfRange(StringSortTest.NAMES, 0, 100);
+		}
+		
+#endif
+#if VALUE_OBJECT
+		@Override
+		protected String[] createValueElements() {
+			return Arrays.copyOfRange(StringSortTest.NAMES, 100, 200);
+		}
+		
+#endif
+	}
+	
+	
 #if VALUE_OBJECT
 	public static class EnumMap extends FILE_KEY_TYPE2FILE_VALUE_TYPEMapConstructorTester<AnEnum, String>
 #else

src/builder/resources/speiger/assets/testers/templates/tests/maps/MapContainsTester.template

@@ -27,6 +27,7 @@ public class FILE_KEY_TYPE2FILE_VALUE_TYPEMapContainsTester KEY_VALUE_GENERIC_TY
 
 #ignore
 	@CollectionSize.Require(absent = ZERO)
+	@SuppressWarnings("unlikely-arg-type")
 #endignore
 	public void testContainsObject_yes() {
 		assertTrue("contains(present) should return true", getMap().ENTRY_SET().contains(new AbstractMap.SimpleEntry<>(e0())));
@@ -36,6 +37,7 @@ public class FILE_KEY_TYPE2FILE_VALUE_TYPEMapContainsTester KEY_VALUE_GENERIC_TY
 		assertFalse("contains(notPresent) should return false", getMap().ENTRY_SET().contains(e3()));
 	}
 	
+	@SuppressWarnings("unlikely-arg-type")
 	public void testContainsObject_no() {
 		assertFalse("contains(notPresent) should return false", getMap().ENTRY_SET().contains(new AbstractMap.SimpleEntry<>(e3())));
 	}

src/builder/resources/speiger/assets/testers/templates/tests/maps/MapRemoveEntryTester.template

@@ -136,6 +136,7 @@ public class FILE_KEY_TYPE2FILE_VALUE_TYPEMapRemoveEntryTester KEY_VALUE_GENERIC
 #ignore
 	@CollectionSize.Require(ONE)
 	@MapFeature.Require(SUPPORTS_REMOVE)
+	@SuppressWarnings("unlikely-arg-type")
 #endignore
 	public void testRemove_supportedObjectEntryPresent() {
 		assertTrue(getMap().ENTRY_SET().remove(new AbstractMap.SimpleEntry<>(e0())));
@@ -154,6 +155,7 @@ public class FILE_KEY_TYPE2FILE_VALUE_TYPEMapRemoveEntryTester KEY_VALUE_GENERIC
 #ignore
 	@CollectionSize.Require(ONE)
 	@MapFeature.Require(SUPPORTS_REMOVE)
+	@SuppressWarnings("unlikely-arg-type")
 #endignore
 	public void testRemove_supportedObjectEntryMissing() {
 		assertFalse(getMap().ENTRY_SET().remove(new AbstractMap.SimpleEntry<>(e3())));

src/builder/resources/speiger/assets/testers/templates/tests/maps/OrderedMapPutTester.template

@@ -0,0 +1,118 @@
+package speiger.src.testers.PACKAGE.tests.maps;
+
+#ignore
+import static com.google.common.collect.testing.features.CollectionSize.ZERO;
+import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT;
+import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;
+import static org.junit.Assert.assertNotEquals;
+#endignore
+
+import com.google.common.collect.testing.features.CollectionSize;
+import com.google.common.collect.testing.features.MapFeature;
+
+import speiger.src.collections.PACKAGE.maps.interfaces.MAP;
+import speiger.src.collections.PACKAGE.maps.interfaces.ORDERED_MAP;
+import speiger.src.collections.objects.lists.ObjectList;
+import speiger.src.testers.PACKAGE.tests.base.maps.ABSTRACT_MAP_TESTER;
+import speiger.src.testers.objects.utils.ObjectHelpers;
+
+@SuppressWarnings("javadoc")
+public class FILE_KEY_TYPE2FILE_VALUE_TYPEOrderedMapPutTester KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP_TESTER KEY_VALUE_GENERIC_TYPE
+{
+	private ORDERED_MAP KEY_VALUE_GENERIC_TYPE orderedMap;
+	private ObjectList<MAP.Entry KEY_VALUE_GENERIC_TYPE> values;
+	private KEY_TYPE a;
+	private VALUE_TYPE aValue;
+	
+	@Override
+	public void setUp() throws Exception {
+		super.setUp();
+		orderedMap = (ORDERED_MAP KEY_VALUE_GENERIC_TYPE)getMap();
+		values = ObjectHelpers.copyToList(getSampleElements(getSubjectGenerator().getCollectionSize().getNumElements()));
+		if (values.size() >= 1) {
+			a = values.get(0).ENTRY_KEY();
+			aValue = values.get(0).ENTRY_VALUE();
+		}
+	}
+	
+#ignore
+	@MapFeature.Require(SUPPORTS_PUT)
+	@CollectionSize.Require(absent = ZERO)
+#endignore
+	public void testPutFirst() {
+		assertEquals(aValue, orderedMap.putFirst(a, v3()));
+		assertNotEquals(v3(), orderedMap.FIRST_ENTRY_VALUE());
+		assertEquals(orderedMap.getDefaultReturnValue(), orderedMap.putFirst(k4(), v4()));
+		assertEquals(v4(), orderedMap.FIRST_ENTRY_VALUE());
+		assertEquals(e4(), orderedMap.firstEntry());
+	}
+	
+
+#ignore
+	@MapFeature.Require(SUPPORTS_PUT)
+	@CollectionSize.Require(absent = ZERO)
+#endignore
+	public void testPutLast() {
+		assertEquals(aValue, orderedMap.putLast(a, v3()));
+		assertNotEquals(v3(), orderedMap.LAST_ENTRY_VALUE());
+		assertEquals(orderedMap.getDefaultReturnValue(), orderedMap.putLast(k4(), v4()));
+		assertEquals(v4(), orderedMap.LAST_ENTRY_VALUE());
+		assertEquals(e4(), orderedMap.lastEntry());
+	}
+	
+#ignore
+	@MapFeature.Require(SUPPORTS_REMOVE)
+	@CollectionSize.Require(CollectionSize.ONE)
+#endignore
+	public void testPollFirst() {
+		assertFalse(orderedMap.isEmpty());
+		assertEquals(e0(), orderedMap.pollFirstEntry());
+		assertTrue(orderedMap.isEmpty());
+	}
+	
+#ignore
+	@MapFeature.Require(SUPPORTS_REMOVE)
+	@CollectionSize.Require(CollectionSize.ONE)
+#endignore
+	public void testPollLast() {
+		assertFalse(orderedMap.isEmpty());
+		assertEquals(e0(), orderedMap.pollLastEntry());
+		assertTrue(orderedMap.isEmpty());
+	}
+	
+#ignore
+	@MapFeature.Require(absent = SUPPORTS_PUT)
+#endignore
+	public void testUnsupportedPutFirst() {
+		try { orderedMap.putFirst(a, aValue); }
+		catch (UnsupportedOperationException tolerated) {}
+		expectUnchanged();
+	}
+	
+#ignore
+	@MapFeature.Require(absent = SUPPORTS_PUT)
+#endignore
+	public void testUnsupportedPutLast() {
+		try { orderedMap.putLast(a, aValue); }
+		catch (UnsupportedOperationException tolerated) {}
+		expectUnchanged();
+	}
+	
+#ignore
+	@MapFeature.Require(absent = SUPPORTS_REMOVE)
+#endignore
+	public void testUnsupportedPollFirst() {
+		try { orderedMap.pollFirstEntry(); }
+		catch (UnsupportedOperationException tolerated) {}
+		expectUnchanged();
+	}
+	
+#ignore
+	@MapFeature.Require(absent = SUPPORTS_REMOVE)
+#endignore
+	public void testUnsupportedPollLast() {
+		try { orderedMap.pollFirstEntry(); }
+		catch (UnsupportedOperationException tolerated) {}
+		expectUnchanged();
+	}
+}

src/builder/resources/speiger/assets/testers/templates/tests/queue/iterators/QueueFindFirstTester.template

@@ -2,6 +2,11 @@ package speiger.src.testers.PACKAGE.tests.queue.iterators;
 
 #if TYPE_OBJECT
 import java.util.Objects;
+#endif
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#else
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
 
 #endif
 import org.junit.Ignore;
@@ -27,17 +32,17 @@ public class FILE_KEY_TYPEQueueFindFirstTester KEY_GENERIC_TYPE extends ABSTRACT
 	@CollectionSize.Require(absent = CollectionSize.ZERO)
 #endignore
 	public void testQueueFindFirst_FindFirstElements() {
-		assertEquals("First Element should be found", e0(), queue.findFirst(T -> KEY_EQUALS(T, e0())));
+		assertEquals("First Element should be found", e0(), queue.findFirst(T -> KEY_EQUALS(T, e0())).SUPPLY_GET());
 	}
 	
 	public void testQueueFindFirst_FindNothing() {
-		assertEquals("No element should be found", EMPTY_KEY_VALUE, queue.findFirst(T -> KEY_EQUALS(T, e4())));
+		assertEquals("No element should be found", OPTIONAL.empty(), queue.findFirst(T -> KEY_EQUALS(T, e4())));
 	}
 	
 #ignore
 	@CollectionSize.Require(CollectionSize.SEVERAL)
 #endignore
 	public void testQueueFindFirst_FindLastElement() {
-		assertEquals("Last Element should be found", e2(), queue.findFirst(T -> KEY_EQUALS(T, e2())));
+		assertEquals("Last Element should be found", e2(), queue.findFirst(T -> KEY_EQUALS(T, e2())).SUPPLY_GET());
 	}
 }

src/builder/resources/speiger/assets/testers/templates/tests/queue/iterators/QueueReduceTester.template

@@ -3,10 +3,16 @@ package speiger.src.testers.PACKAGE.tests.queue.iterators;
 #if TYPE_OBJECT
 import java.util.Objects;
 
+#endif
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#else
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
 #endif
 import org.junit.Ignore;
 
 import speiger.src.testers.PACKAGE.tests.base.ABSTRACT_QUEUE_TESTER;
+import com.google.common.collect.testing.features.CollectionSize;
 
 @Ignore
 @SuppressWarnings("javadoc")
@@ -29,7 +35,7 @@ public class FILE_KEY_TYPEQueueReduceTester KEY_GENERIC_TYPE extends ABSTRACT_QU
 	}
 	
 	public void testQueueReduce() {
-		assertEquals("The sum of the queue should match", getSum(), queue.reduce(this::sum));
+		assertEquals("The sum of the queue should match", size == CollectionSize.ZERO ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(getSum()), queue.reduce(this::sum));
 	}
 	
 	public void testQueueExtraReduce() {

src/builder/resources/speiger/assets/tests/templates/collections/SetTests.template

@@ -12,6 +12,9 @@ import com.google.common.collect.testing.features.CollectionSize;
 import com.google.common.collect.testing.features.SetFeature;
 import com.google.common.collect.testing.features.Feature;
 #if TYPE_OBJECT
+import com.google.common.collect.testing.testers.CollectionAddTester;
+import com.google.common.collect.testing.testers.CollectionAddAllTester;
+import com.google.common.collect.testing.testers.CollectionCreationTester;
 import com.google.common.collect.testing.features.CollectionFeature;
 #endif
 import junit.framework.Test;
@@ -122,6 +125,9 @@ public class SET_TESTS extends TestCase
 #ignore
 			.withFeatures(getSizes(size)).withFeatures(features);
 		if(nullValues) builder.withFeatures(CollectionFeature.ALLOWS_NULL_VALUES);
+		builder.suppressing(CollectionAddTester.getAddNullUnsupportedMethod(), CollectionAddTester.getAddNullSupportedMethod());
+		builder.suppressing(CollectionAddAllTester.getAddAllNullUnsupportedMethod());
+		builder.suppressing(CollectionCreationTester.getCreateWithNullUnsupportedMethod());
 #endignore
 		return builder.createTestSuite();
 	}

src/builder/resources/speiger/assets/tests/templates/maps/MapTests.template

@@ -41,6 +41,8 @@ import speiger.src.collections.PACKAGE.maps.impl.misc.ARRAY_MAP;
 #if TYPE_OBJECT
 import speiger.src.collections.PACKAGE.maps.impl.misc.ENUM_MAP;
 import speiger.src.collections.PACKAGE.maps.impl.misc.LINKED_ENUM_MAP;
+import speiger.src.collections.PACKAGE.maps.impl.reference.REF_MAP;
+import speiger.src.collections.PACKAGE.maps.impl.reference.LINKED_REF_MAP;
 #endif
 import speiger.src.collections.PACKAGE.maps.impl.tree.AVL_TREE_MAP;
 import speiger.src.collections.PACKAGE.maps.impl.tree.RB_TREE_MAP;
@@ -104,6 +106,7 @@ public class MAP_TESTS extends TestCase
 #if TYPE_OBJECT
 		constructors.addTest(new TestSuite(MAP_CONSTRUCTOR_TESTS.EnumMap.class));
 		constructors.addTest(new TestSuite(MAP_CONSTRUCTOR_TESTS.LinkedEnumMap.class));
+		constructors.addTest(new TestSuite(MAP_CONSTRUCTOR_TESTS.RefMap.class));
 #endif
 		constructors.addTest(new TestSuite(MAP_CONSTRUCTOR_TESTS.CustomHashMap.class));
 		constructors.addTest(new TestSuite(MAP_CONSTRUCTOR_TESTS.LinkedCustomHashMap.class));
@@ -130,27 +133,29 @@ public class MAP_TESTS extends TestCase
 	}
 	
 	public static void suite(TestSuite suite) {
-		suite.addTest(mapSuite("HASH_MAP", HASH_MAP::new, getFeatures(), -1, true));
-		suite.addTest(orderedMapSuite("LINKED_HASH_MAP", LINKED_HASH_MAP::new, getFeatures(), -1));
-		suite.addTest(orderedMapSuite("IMMUTABLE_HASH_MAP", IMMUTABLE_HASH_MAP::new, getImmutableFeatures(), -1));
+		suite.addTest(mapSuite("HASH_MAP", HASH_MAP::new, getFeatures(), -1, true, true));
+		suite.addTest(orderedMapSuite("LINKED_HASH_MAP", LINKED_HASH_MAP::new, getFeatures(), -1, true));
+		suite.addTest(orderedMapSuite("IMMUTABLE_HASH_MAP", IMMUTABLE_HASH_MAP::new, getImmutableFeatures(), -1, true));
 #if TYPE_OBJECT
 		suite.addTest(enumMapSuite("ENUM_MAP", ENUM_MAP::new, getFeatures(), 5));
 		suite.addTest(enumOrderedMapSuite("LINKED_ENUM_MAP", (K, V) -> K.length <= 0 ? new LINKED_ENUM_MAP<>(AnEnum.class) : new LINKED_ENUM_MAP<>(K, V), getFeatures(), 5));
+		suite.addTest(mapSuite("REF_MAP", REF_MAP::new, getFeatures(), - 1, true, false));
+		suite.addTest(orderedMapSuite("LINKED_REF_MAP", LINKED_REF_MAP::new, getFeatures(), - 1, false));
 #endif
-		suite.addTest(mapSuite("CUSTOM_HASH_MAP", (K, V) -> new CUSTOM_HASH_MAPKV_BRACES(K, V, HashStrategy.INSTANCE), getFeatures(), -1, true));
-		suite.addTest(orderedMapSuite("LINKED_CUSTOM_HASH_MAP", (K, V) -> new LINKED_CUSTOM_HASH_MAPKV_BRACES(K, V, HashStrategy.INSTANCE), getFeatures(), -1));
-		suite.addTest(orderedMapSuite("ARRAY_MAP", ARRAY_MAP::new, getFeatures(), -1));
+		suite.addTest(mapSuite("CUSTOM_HASH_MAP", (K, V) -> new CUSTOM_HASH_MAPKV_BRACES(K, V, HashStrategy.INSTANCE), getFeatures(), -1, true, true));
+		suite.addTest(orderedMapSuite("LINKED_CUSTOM_HASH_MAP", (K, V) -> new LINKED_CUSTOM_HASH_MAPKV_BRACES(K, V, HashStrategy.INSTANCE), getFeatures(), -1, true));
+		suite.addTest(orderedMapSuite("ARRAY_MAP", ARRAY_MAP::new, getFeatures(), -1, true));
 		suite.addTest(concurrentMapSuite("CONCURRENT_HASH_MAP", CONCURRENT_HASH_MAP::new, getFeatures(), 2));
 		suite.addTest(concurrentMapSuite("CONCURRENT_HASH_MAP", CONCURRENT_HASH_MAP::new, getFeatures(), 3));
 		suite.addTest(navigableMapSuite("RB_TREE_MAP", RB_TREE_MAP::new, getFeatures(), -1));
 		suite.addTest(navigableMapSuite("AVL_TREE_MAP", AVL_TREE_MAP::new, getFeatures(), -1));
 		suite.addTest(navigableMapSuite("SynchronizedRB_TREE_MAP", (K, V) -> new RB_TREE_MAPKV_BRACES(K, V).synchronize(), getLimitedFeatures(), -1));
 		suite.addTest(navigableMapSuite("UnmodifiableRB_TREE_MAP", (K, V) -> new RB_TREE_MAPKV_BRACES(K, V).unmodifiable(), getLimitedImmutableFeatures(), -1));
-		suite.addTest(orderedMapSuite("SynchronizedORDERED_MAP", (K, V) -> new LINKED_HASH_MAPKV_BRACES(K, V).synchronize(), getFeatures(), -1));
-		suite.addTest(orderedMapSuite("UnmodifiableORDERED_MAP", (K, V) -> new LINKED_HASH_MAPKV_BRACES(K, V).unmodifiable(), getImmutableFeatures(), -1));
-		suite.addTest(mapSuite("EmptyMAP", (K, V) -> MAPS.empty(), getEmptyFeatures(), 0, false));
-		suite.addTest(mapSuite("SingletonMAP", (K, V) -> MAPS.singleton(K[0], V[0]), getEmptyFeatures(), 1, false));
-		suite.addTest(mapSuite("AbstractMap", SIMPLE_TEST_MAP::new, getTestFeatures(), -1, false));
+		suite.addTest(orderedMapSuite("SynchronizedORDERED_MAP", (K, V) -> new LINKED_HASH_MAPKV_BRACES(K, V).synchronize(), getFeatures(), -1, true));
+		suite.addTest(orderedMapSuite("UnmodifiableORDERED_MAP", (K, V) -> new LINKED_HASH_MAPKV_BRACES(K, V).unmodifiable(), getImmutableFeatures(), -1, true));
+		suite.addTest(mapSuite("EmptyMAP", (K, V) -> MAPS.empty(), getEmptyFeatures(), 0, false, true));
+		suite.addTest(mapSuite("SingletonMAP", (K, V) -> MAPS.singleton(K[0], V[0]), getEmptyFeatures(), 1, false, true));
+		suite.addTest(mapSuite("AbstractMap", SIMPLE_TEST_MAP::new, getTestFeatures(), -1, false, true));
 	}
 	
 #if TYPE_OBJECT
@@ -209,14 +214,14 @@ public class MAP_TESTS extends TestCase
 	
 #endif
 	
-	private static Test mapSuite(String name, BiFunction<KEY_STRING_TYPE[], VALUE_STRING_TYPE[], MAP KEY_VALUE_STRING_GENERIC_TYPE> factory, Collection<Feature<?>> features, int size, boolean sorted) {
+	private static Test mapSuite(String name, BiFunction<KEY_STRING_TYPE[], VALUE_STRING_TYPE[], MAP KEY_VALUE_STRING_GENERIC_TYPE> factory, Collection<Feature<?>> features, int size, boolean sorted, boolean allowNullKeys) {
 		SIMPLE_MAP_TEST_GENERATOR.Maps KEY_VALUE_STRING_GENERIC_TYPE generator = new SIMPLE_MAP_TEST_GENERATOR.Maps KEY_VALUE_STRING_GENERIC_TYPE(factory);
 		MAP_TEST_BUILDER KEY_VALUE_STRING_GENERIC_TYPE builder = MAP_TEST_BUILDER.using(generator);
 		builder.shouldBlockKeys(sorted);
 #if TYPE_OBJECT
 		generator.setKeys(createKeys());
 #ignore
-		builder.withFeatures(MapFeature.ALLOWS_NULL_KEYS);
+		if(allowNullKeys) builder.withFeatures(MapFeature.ALLOWS_NULL_KEYS);
 #endignore
 #endif
 #if VALUE_OBJECT
@@ -265,13 +270,13 @@ public class MAP_TESTS extends TestCase
 		return builder.named(name).createTestSuite();
 	}
 	
-	private static Test orderedMapSuite(String name, BiFunction<KEY_STRING_TYPE[], VALUE_STRING_TYPE[], ORDERED_MAP KEY_VALUE_STRING_GENERIC_TYPE> factory, Collection<Feature<?>> features, int size) {
+	private static Test orderedMapSuite(String name, BiFunction<KEY_STRING_TYPE[], VALUE_STRING_TYPE[], ORDERED_MAP KEY_VALUE_STRING_GENERIC_TYPE> factory, Collection<Feature<?>> features, int size, boolean allowNullKeys) {
 		SIMPLE_MAP_TEST_GENERATOR.OrderedMaps KEY_VALUE_STRING_GENERIC_TYPE generator = new SIMPLE_MAP_TEST_GENERATOR.OrderedMaps KEY_VALUE_STRING_GENERIC_TYPE(factory);
 		ORDERED_MAP_TEST_BUILDER KEY_VALUE_STRING_GENERIC_TYPE builder = ORDERED_MAP_TEST_BUILDER.using(generator);
 #if TYPE_OBJECT
 		generator.setKeys(createKeys());
 #ignore
-		builder.withFeatures(MapFeature.ALLOWS_NULL_KEYS);
+		if(allowNullKeys) builder.withFeatures(MapFeature.ALLOWS_NULL_KEYS);
 #endignore
 #endif
 #if VALUE_OBJECT

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

@@ -0,0 +1,5 @@
+package speiger.src.collections.utils;
+
+public interface Swapper {
+	public void swap(int fromIndex, int toIndex);
+}

src/test/java/speiger/src/collections/ints/base/BaseInt2IntNavigableMapTest.java

@@ -9,8 +9,7 @@ import speiger.src.collections.ints.maps.interfaces.Int2IntNavigableMap;
 import speiger.src.collections.tests.NavigableSetTest;
 
 @SuppressWarnings("javadoc")
-public abstract class BaseInt2IntNavigableMapTest extends BaseInt2IntSortedMapTest
-{
+public abstract class BaseInt2IntNavigableMapTest extends BaseInt2IntSortedMapTest {
 	@Override
 	public abstract Int2IntNavigableMap createMap(int[] keys, int[] values);
 	@Override
@@ -29,30 +28,22 @@ public abstract class BaseInt2IntNavigableMapTest extends BaseInt2IntSortedMapTe
 	
 	@Test
 	public void lowerTest() {
-		if(getValidNavigableMapTests().contains(NavigableSetTest.LOWER)) {
-			Assert.assertTrue(createMap(TEST_ARRAY, TEST_ARRAY).lowerKey(50) < 50);
-		}
+		if(getValidNavigableMapTests().contains(NavigableSetTest.LOWER)) { Assert.assertTrue(createMap(TEST_ARRAY, TEST_ARRAY).lowerKey(50) < 50); }
 	}
 	
 	@Test
 	public void higherTest() {
-		if(getValidNavigableMapTests().contains(NavigableSetTest.HIGHER)) {
-			Assert.assertTrue(createMap(TEST_ARRAY, TEST_ARRAY).higherKey(50) > 50);
-		}
+		if(getValidNavigableMapTests().contains(NavigableSetTest.HIGHER)) { Assert.assertTrue(createMap(TEST_ARRAY, TEST_ARRAY).higherKey(50) > 50); }
 	}
 	
 	@Test
 	public void ceilTest() {
-		if(getValidNavigableMapTests().contains(NavigableSetTest.CEILING)) {
-			Assert.assertTrue(createMap(TEST_ARRAY, TEST_ARRAY).ceilingKey(50) >= 50);
-		}
+		if(getValidNavigableMapTests().contains(NavigableSetTest.CEILING)) { Assert.assertTrue(createMap(TEST_ARRAY, TEST_ARRAY).ceilingKey(50) >= 50); }
 	}
 	
 	@Test
 	public void floorTest() {
-		if(getValidNavigableMapTests().contains(NavigableSetTest.FLOOR)) {
-			Assert.assertTrue(createMap(TEST_ARRAY, TEST_ARRAY).floorKey(50) <= 50);
-		}
+		if(getValidNavigableMapTests().contains(NavigableSetTest.FLOOR)) { Assert.assertTrue(createMap(TEST_ARRAY, TEST_ARRAY).floorKey(50) <= 50); }
 	}
 	
 	@Test

src/test/java/speiger/src/collections/ints/base/BaseInt2IntOrderedMapTest.java

@@ -23,10 +23,10 @@ public abstract class BaseInt2IntOrderedMapTest extends BaseInt2IntMapTest
 	{
 		if(!getValidOrderedMapTests().contains(OrderedMapTests.PUT_MOVE)) return;
 		Int2IntOrderedMap map = createMap(TEST_ARRAY, TEST_ARRAY);
-		Assert.assertEquals(0, map.putAndMoveToFirst(120, -1));
+		Assert.assertEquals(-1, map.putAndMoveToFirst(120, -1));
 		Assert.assertEquals(120, map.firstIntKey());
 		Assert.assertEquals(-1, map.firstIntValue());
-		Assert.assertEquals(0, map.putAndMoveToLast(121, -2));
+		Assert.assertEquals(-1, map.putAndMoveToLast(121, -2));
 		Assert.assertEquals(121, map.lastIntKey());
 		Assert.assertEquals(-2, map.lastIntValue());
 	}