We are now to 16k tests. Fixed loads of issues.

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

Changelog.md

@@ -28,6 +28,9 @@
 - Fixed: CustomOpenHashMap.keySet.forEach was basically putting out keys even if they were present
 - Fixed: ImmutableMaps issues thanks to the tests. Roughly the same as the rest of the maps
 - Fixed: RB/AVLTreeMaps issues. Roughly the same as the rest of the maps
+- Fixed: SubLists are now properly implemented.
+- Fixed: HashSet Iterator bugs now fixed... That was Painful.
+- Added: Tests for Lists and Sets
 
 ### Version 0.4.5
 - Added: removeAll/retainAll(Collection c, Consumer r) which receives all the elements that got deleted from the collection

README.md

@@ -19,6 +19,21 @@ But its focus is a different one.
 - Suppliers
 - Bi/Consumers
 
+
+## Current Level of Stability
+Since this is a relatively new Library, stability was not perfect and some areas are not perfect yet.
+Thanks to @ben-manes we now have Roughly 16000 test covering Maps/Sets/Lists.
+These tests cover Javas Collection API completely and ensuring a Stable implementation.
+These freshly added tests allowed me to squash thousands of issues according to Googles Test Library (Guava-Tests).
+These will be expanded on as time goes on.
+
+One know aspect of Instability is SubSets and SubMaps. They require full rewrites to be fully stable.
+So it is not advised to use them until these issues are addressed.
+PriorityQueues are tested separately and ensure basic functionality though GuavaTests are planned.
+They just require a custom implementation to run.
+
+As a summary: Stability is good/excellent, unless you need SubSets/SubMaps
+
 ## Specialized Functions
 New Specialized functions that were added to increase performance or reduce allocations or Quality Of life.
 To highlight things that may be wanted.
@@ -121,5 +136,5 @@ to build the jar:
 do not combine the commands because they can not be executed at the same time.      
 
 ## Current Down Sides (Random order)
-- Testing for Sub Maps/Sets/Lists are only in a very basic way tested
+- SubMaps/Set implementation isn't perfect right now. This will be addressed slowly due to rewrites required.
 - Documentation is only present at the lowest level for most cases and needs a typo fixing.

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

@@ -3,11 +3,15 @@ package speiger.src.collections.PACKAGE.lists;
 import java.util.Collection;
 import java.util.List;
 import java.util.ListIterator;
+import java.util.NoSuchElementException;
 import java.util.Objects;
 
 import speiger.src.collections.PACKAGE.collections.ABSTRACT_COLLECTION;
 import speiger.src.collections.PACKAGE.collections.COLLECTION;
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
+import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
+import speiger.src.collections.utils.SanityChecks;
 
 /**
  * Abstract implementation of the {@link LIST} interface.
@@ -15,9 +19,8 @@ import speiger.src.collections.PACKAGE.collections.ITERATOR;
  */
 public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION KEY_GENERIC_TYPE implements LIST KEY_GENERIC_TYPE 
 {
-#if !TYPE_OBJECT
 	/**
-	 * A Type-Specific implementation of add function that delegates to {@link #add(int, KEY_TYPE)}
+	 * A Type-Specific implementation of add function that delegates to {@link List#add(int, Object)}
 	 */
 	@Override
 	public boolean add(KEY_TYPE e) {
@@ -25,6 +28,7 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		return true;
 	}
 	
+#if !TYPE_OBJECT
 	/** {@inheritDoc}
 	 * <p>This default implementation delegates to the corresponding type-specific function.
 	 * @deprecated Please use the corresponding type-specific function instead. 
@@ -213,7 +217,8 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 	
 	@Override
 	public LIST KEY_GENERIC_TYPE subList(int fromIndex, int toIndex) {
-		return new SUB_LIST(this, fromIndex, toIndex);
+		SanityChecks.checkArrayCapacity(size(), fromIndex, toIndex-fromIndex);
+		return new SubList(this, 0, fromIndex, toIndex);
 	}
 	
 	@Override
@@ -228,6 +233,7 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 
 	@Override
 	public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index) {
+		if(index < 0 || index > size()) throw new IndexOutOfBoundsException();
 		return new LIST_ITER(index);
 	}
 	
@@ -239,134 +245,128 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 	
 	public ABSTRACT_LIST KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 	
-	private class SUB_LIST extends ABSTRACT_LIST KEY_GENERIC_TYPE {
+	private class SubList extends ABSTRACT_LIST KEY_GENERIC_TYPE
-		ABSTRACT_LIST KEY_GENERIC_TYPE l;
+	{
-		int offset;
+		final ABSTRACT_LIST KEY_GENERIC_TYPE list;
+		final int parentOffset;
+		final int offset;
 		int size;
 		
-		SUB_LIST(ABSTRACT_LIST KEY_GENERIC_TYPE l, int from, int to) {
+		public SubList(ABSTRACT_LIST KEY_GENERIC_TYPE list, int offset, int from, int to) {
-			if (from < 0) throw new IndexOutOfBoundsException("fromIndex = " + from);
+			this.list = list;
-			else if (to > l.size()) throw new IndexOutOfBoundsException("toIndex = " + to);
+			this.parentOffset = from;
-			else if (from > to)	throw new IllegalArgumentException("fromIndex(" + from + ") > toIndex(" + to + ")");
+			this.offset = offset + from;
-			this.l = l;
+			this.size = to - from;
-			offset = from;
-			size = to - from;
 		}
 		
 		@Override
-		public void add(int index, KEY_TYPE e) {
+		public void add(int index, KEY_TYPE element) {
-			checkAddRange(index);
+			checkAddSubRange(index);
-			l.add(index+offset, e);
+			list.add(parentOffset+index, element);
 			size++;
 		}
 		
 		@Override
 		public boolean addAll(int index, Collection<? extends CLASS_TYPE> c) {
-			checkAddRange(index);
+			checkAddSubRange(index);
-			int size = c.size();
+			int add = c.size();
-			if(size == 0) return false;
+			if(add <= 0) return false;
-			l.addAll(index + offset, l);
+			list.addAll(parentOffset+index, c);
-			offset += size;
+			this.size += add;
 			return true;
 		}
 		
 		@Override
 		public boolean addAll(int index, COLLECTION KEY_GENERIC_TYPE c) {
-			checkAddRange(index);
+			checkAddSubRange(index);
-			int size = c.size();
+			int add = c.size();
-			if(size == 0) return false;
+			if(add <= 0) return false;
-			l.addAll(index + offset, l);
+			list.addAll(parentOffset+index, c);
-			offset += size;
+			this.size += add;
 			return true;
 		}
-		
+
 		@Override
 		public boolean addAll(int index, LIST KEY_GENERIC_TYPE c) {
-			checkAddRange(index);
+			checkAddSubRange(index);
-			int size = c.size();
+			int add = c.size();
-			if(size == 0) return false;
+			if(add <= 0) return false;
-			l.addAll(index + offset, l);
+			list.addAll(parentOffset+index, c);
-			offset += size;
+			this.size += add;
-			return true;
-		}
-		
-		@Override
-		public boolean addAll(KEY_TYPE[] e, int offset, int length) {
-			if(length <= 0) return false;
-			l.addElements(this.offset, e, offset, length);
-			offset += length;
 			return true;
 		}
 		
 		@Override
 		public void addElements(int from, KEY_TYPE[] a, int offset, int length) {
-			checkRange(from);
+			checkAddSubRange(from);
-			l.addElements(from + this.offset, a, offset, length);
+			if(length <= 0) return;
-			size += length;
+			list.addElements(parentOffset+from, a, offset, length);
+			this.size += length;
 		}
 		
 		@Override
 		public KEY_TYPE[] getElements(int from, KEY_TYPE[] a, int offset, int length) {
-			checkRange(from);
+			SanityChecks.checkArrayCapacity(size, from, length);
-			return l.getElements(from + this.offset, a, offset, length);
+			SanityChecks.checkArrayCapacity(a.length, offset, length);
+			return list.getElements(from+this.offset, a, offset, length);
 		}
 		
 		@Override
 		public void removeElements(int from, int to) {
-			checkRange(from);
+			if(to-from <= 0) return;
-			checkRange(to);
+			checkSubRange(from);
-			l.removeElements(from + offset, to + offset);
+			checkSubRange(to);
+			list.removeElements(from+parentOffset, to+parentOffset);
 			size -= to - from;
 		}
 		
 #if TYPE_OBJECT
 		@Override
-		public <K> K[] extractElements(int from, int to, Class<K> clz) {
+		public <K> K[] extractElements(int from, int to, Class<K> type) {
-			checkRange(from);
+			checkSubRange(from);
-			checkRange(to);
+			checkSubRange(to);
-			K[] a = l.extractElements(from + offset, to + offset, clz);
+			K[] result = list.extractElements(from+parentOffset, to+parentOffset, type);
 			size -= to - from;
-			return a;
+			return result;
 		}
-		
+
 #else
 		@Override
 		public KEY_TYPE[] extractElements(int from, int to) {
-			checkRange(from);
+			checkSubRange(from);
-			checkRange(to);
+			checkSubRange(to);
-			KEY_TYPE[] a = l.extractElements(from + offset, to + offset);
+			KEY_TYPE[] result = list.extractElements(from+parentOffset, to+parentOffset);
 			size -= to - from;
-			return a;
+			return result;
 		}
 		
 #endif
 		@Override
 		public KEY_TYPE GET_KEY(int index) {
-			checkRange(index);
+			checkSubRange(index);
-			return l.GET_KEY(index + offset);
+			return list.GET_KEY(offset+index);
+		}
+
+		@Override
+		public KEY_TYPE set(int index, KEY_TYPE element) {
+			checkSubRange(index);
+			return list.set(offset+index, element);
 		}
 		
 		@Override
-		public KEY_TYPE set(int index, KEY_TYPE e) {
+		public KEY_TYPE swapRemove(int index) {
-			checkRange(index);
+			checkSubRange(index);
-			return l.set(index + offset, e);
+			KEY_TYPE result = list.swapRemove(index+parentOffset);
+			size--;
+			return result;
 		}
 		
 		@Override
 		public KEY_TYPE REMOVE(int index) {
-			checkRange(index);
+			checkSubRange(index);
-			int temp = l.size();
+			KEY_TYPE result = list.REMOVE(index+parentOffset);
-			KEY_TYPE type = l.REMOVE(index + offset);
+			size--;
-			if(l.size() != temp) size--;
+			return result;
-			return type;
-		}
-		
-		public KEY_TYPE swapRemove(int index) {
-			checkRange(index);
-			int temp = l.size();
-			KEY_TYPE type = l.swapRemove(index + offset);
-			if(l.size() != temp) size--;
-			return type;
 		}
 		
 		@Override
@@ -374,17 +374,114 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 			return size;
 		}
 		
-		private void checkRange(int index) {
+		@Override
+		public SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 16464); }
+		
+		@Override
+		public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index) {
+			if(index < 0 || index > size()) throw new IndexOutOfBoundsException();
+			return new SubListIterator(this, index);
+		}
+		
+		@Override
+		public LIST KEY_GENERIC_TYPE subList(int fromIndex, int toIndex) {
+			SanityChecks.checkArrayCapacity(size, fromIndex, toIndex-fromIndex);
+			return new SubList(list, offset, fromIndex, toIndex);
+		}
+		
+		protected void checkSubRange(int index) {
 			if (index < 0 || index >= size)
 				throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
 		}
 		
-		private void checkAddRange(int index) {
+		protected void checkAddSubRange(int index) {
 			if (index < 0 || index > size)
 				throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
 		}
+		
+		private class SubListIterator implements LIST_ITERATOR KEY_GENERIC_TYPE
+		{
+			ABSTRACT_LIST KEY_GENERIC_TYPE list;
+			int index;
+			int lastReturned = -1;
+			
+			SubListIterator(ABSTRACT_LIST KEY_GENERIC_TYPE list, int index) {
+				this.list = list;
+				this.index = index;
+			}
+			
+			@Override
+			public boolean hasNext() {
+				return index < list.size();
+			}
+			
+			@Override
+			public KEY_TYPE NEXT() {
+				if(!hasNext()) throw new NoSuchElementException();
+				int i = index++;
+				return list.GET_KEY((lastReturned = i));
+			}
+			
+			@Override
+			public boolean hasPrevious() {
+				return index > 0;
+			}
+			
+			@Override
+			public KEY_TYPE PREVIOUS() {
+				if(!hasPrevious()) throw new NoSuchElementException();
+				index--;
+				return list.GET_KEY((lastReturned = index));
+			}
+			
+			@Override
+			public int nextIndex() {
+				return index;
+			}
+			
+			@Override
+			public int previousIndex() {
+				return index-1;
+			}
+			
+			@Override
+			public void remove() {
+				if(lastReturned == -1) throw new IllegalStateException();
+				list.REMOVE(lastReturned);
+				index = lastReturned;
+				lastReturned = -1;
+			}
+			
+			@Override
+			public void set(KEY_TYPE e) {
+				if(lastReturned == -1) throw new IllegalStateException();
+				list.set(lastReturned, e);
+			}
+			
+			@Override
+			public void add(KEY_TYPE e) {
+				list.add(index++, e);
+				lastReturned = -1;
+			}
+			
+			@Override
+			public int skip(int amount) {
+				if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+				int steps = Math.min(amount, (list.size() - 1) - index);
+				index += steps;
+				return steps;
+			}
+			
+			@Override
+			public int back(int amount) {
+				if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+				int steps = Math.min(amount, index);
+				index -= steps;
+				return steps;
+			}
+		}
 	}
-	
+		
 	private class LIST_ITER implements LIST_ITERATOR KEY_GENERIC_TYPE {
 		int index;
 		int lastReturned = -1;
@@ -400,8 +497,9 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		
 		@Override
 		public KEY_TYPE NEXT() {
-			lastReturned = index;
+			if(!hasNext()) throw new NoSuchElementException();
-			return GET_KEY(index++);
+			int i = index++;
+			return GET_KEY((lastReturned = i));
 		}
 		
 		@Override
@@ -411,8 +509,9 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
-			lastReturned = index;
+			if(!hasPrevious()) throw new NoSuchElementException();
-			return GET_KEY(index--);
+			index--;
+			return GET_KEY((lastReturned = index));
 		}
 		
 		@Override
@@ -427,25 +526,20 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		
 		@Override
 		public void remove() {
-			if(lastReturned == -1)
+			if(lastReturned == -1) throw new IllegalStateException();
-				throw new IllegalStateException();
 			ABSTRACT_LIST.this.REMOVE(lastReturned);
-			if(lastReturned < index)
+			index = lastReturned;
-				index--;
 			lastReturned = -1;
 		}
 		
 		@Override
 		public void set(KEY_TYPE e) {
-			if(lastReturned == -1)
+			if(lastReturned == -1) throw new IllegalStateException();
-				throw new IllegalStateException();
 			ABSTRACT_LIST.this.set(lastReturned, e);
 		}
 		
 		@Override
 		public void add(KEY_TYPE e) {
-			if(lastReturned == -1)
-				throw new IllegalStateException();
 			ABSTRACT_LIST.this.add(index++, e);
 			lastReturned = -1;
 		}

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

@@ -1029,6 +1029,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		for(int i = 0;i<size;i++)
 			a[i] = (E)KEY_TO_OBJ(data[i]);
 #endif
+		if (a.length > size) a[size] = null;
 		return a;
 	}
 	
@@ -1037,6 +1038,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
 		if(a.length < size) a = new KEY_TYPE[size];
 		System.arraycopy(data, 0, a, 0, size);
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
 		return a;
 	}
 	
@@ -1138,6 +1140,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 			throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
 	}
 	
+	
 #if PRIMITIVES
 	/**
 	 * Returns a Java-Type-Specific Stream to reduce boxing/unboxing.

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

@@ -5,6 +5,7 @@ import java.util.Arrays;
 import java.util.Comparator;
 #endif
 import java.util.Collection;
+import java.util.NoSuchElementException;
 import java.util.Objects;
 #if TYPE_OBJECT
 import java.util.function.BiFunction;
@@ -381,6 +382,12 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 		return result;
 	}
 	
+	@Override
+	public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index) {
+		if(index < 0 || index > size()) throw new IndexOutOfBoundsException();
+		return new LIST_ITER(index);
+	}
+	
 	@Override
 	public KEY_TYPE set(int index, KEY_TYPE e) { throw new UnsupportedOperationException(); }
 	@Override
@@ -447,6 +454,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 		else if(a.length < data.length) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), data.length);
 		for(int i = 0,m=data.length;i<m;i++)
 			a[i] = (E)KEY_TO_OBJ(data[i]);
+		if (a.length > data.length) a[data.length] = null;
 		return a;
 	}
 	
@@ -455,6 +463,7 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
 		if(a.length < data.length) a = new KEY_TYPE[data.length];
 		System.arraycopy(data, 0, a, 0, data.length);
+		if (a.length > data.length) a[data.length] = EMPTY_KEY_VALUE;
 		return a;
 	}
 	
@@ -495,4 +504,69 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	 */
 	@Override
 	public SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createArraySplititerator(data, data.length, 16464); }
+	
+	private class LIST_ITER implements LIST_ITERATOR KEY_GENERIC_TYPE {
+		int index;
+		
+		LIST_ITER(int index) {
+			this.index = index;
+		}
+		
+		@Override
+		public boolean hasNext() {
+			return index < size();
+		}
+		
+		@Override
+		public KEY_TYPE NEXT() {
+			if(!hasNext()) throw new NoSuchElementException();
+			return GET_KEY(index++);
+		}
+		
+		@Override
+		public boolean hasPrevious() {
+			return index > 0;
+		}
+		
+		@Override
+		public KEY_TYPE PREVIOUS() {
+			if(!hasPrevious()) throw new NoSuchElementException();
+			return GET_KEY(--index);
+		}
+		
+		@Override
+		public int nextIndex() {
+			return index;
+		}
+		
+		@Override
+		public int previousIndex() {
+			return index-1;
+		}
+		
+		@Override
+		public void remove() { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public void set(KEY_TYPE e) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public void add(KEY_TYPE e) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public int skip(int amount) {
+			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+			int steps = Math.min(amount, (size() - 1) - index);
+			index += steps;
+			return steps;
+		}
+		
+		@Override
+		public int back(int amount) {
+			if(amount < 0) throw new IllegalStateException("Negative Numbers are not allowed");
+			int steps = Math.min(amount, index);
+			index -= steps;
+			return steps;
+		}
+	}
 }

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

@@ -9,6 +9,7 @@ import java.nio.JAVA_BUFFER;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.Objects;
+import java.util.NoSuchElementException;
 import java.util.Spliterator;
 #if PRIMITIVES
 import java.util.Spliterator.JAVA_SPLIT_ITERATOR;
@@ -326,9 +327,8 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	@Primitive
 	public int indexOf(Object o) {
-		if(o == null) return -1;
 		Entry KEY_GENERIC_TYPE entry = first;
-		for(int i = 0;entry != null;entry = entry.next) {
+		for(int i = 0;entry != null;entry = entry.next,i++) {
 			if(Objects.equals(KEY_TO_OBJ(entry.value), o)) return i;
 		}
 		return -1;
@@ -337,9 +337,8 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	@Primitive
 	public int lastIndexOf(Object o) {
-		if(o == null) return -1;
 		Entry KEY_GENERIC_TYPE entry = last;
-		for(int i = size-1;entry != null;entry = entry.prev) {
+		for(int i = size-1;entry != null;entry = entry.prev,i--) {
 			if(Objects.equals(KEY_TO_OBJ(entry.value), o)) return i;
 		}
 		return -1;
@@ -354,7 +353,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public int indexOf(KEY_TYPE e) {
 		Entry entry = first;
-		for(int i = 0;entry != null;entry = entry.next) {
+		for(int i = 0;entry != null;entry = entry.next,i++) {
 			if(KEY_EQUALS(entry.value, e)) return i;
 		}
 		return -1;
@@ -363,26 +362,17 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public int lastIndexOf(KEY_TYPE e) {
 		Entry entry = last;
-		for(int i = size-1;entry != null;entry = entry.prev) {
+		for(int i = size-1;entry != null;entry = entry.prev,i--) {
 			if(KEY_EQUALS(entry.value, e)) return i;
 		}
 		return -1;
 	}
 	
 #endif
-	@Override
-	public ITERATOR KEY_GENERIC_TYPE iterator() {
-		return new ListIter(first, 0);
-	}
-	
-	@Override
-	public LIST_ITERATOR KEY_GENERIC_TYPE listIterator() {
-		return new ListIter(first, 0);
-	}
-	
 	@Override
 	public LIST_ITERATOR KEY_GENERIC_TYPE listIterator(int index) {
-		if(index == size-1) return new ListIter(last, index);
+		if(index < 0 || index > size()) throw new IndexOutOfBoundsException();
+		if(index == size) return new ListIter(null, index);
 		if(index == 0) return new ListIter(first, index);
 		return new ListIter(getNode(index), index);
 	}
@@ -564,7 +554,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public boolean removeFirst(KEY_TYPE e) {
 		if(size == 0) return false;
-		for(Entry KEY_GENERIC_TYPE entry = first;entry.next != null;entry = entry.next) {
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
 			if(KEY_EQUALS(entry.value, e)) {
 				unlink(entry);
 				return true;
@@ -576,7 +566,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public boolean removeLast(KEY_TYPE e) {
 		if(size == 0) return false;
-		for(Entry KEY_GENERIC_TYPE entry = last;entry.prev != null;entry = entry.prev) {
+		for(Entry KEY_GENERIC_TYPE entry = last;entry != null;entry = entry.prev) {
 			if(KEY_EQUALS(entry.value, e)) {
 				unlink(entry);
 				return true;
@@ -615,7 +605,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public boolean REMOVE_SWAP(KEY_TYPE e) {
 		if(size == 0) return false;
-		for(Entry KEY_GENERIC_TYPE entry = last;entry.prev != null;entry = entry.prev) {
+		for(Entry KEY_GENERIC_TYPE entry = last;entry != null;entry = entry.prev) {
 			if(KEY_EQUALS(entry.value, e)) {
 				if(entry.next == null) {
 					unlinkLast(entry);
@@ -649,7 +639,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	@Override
 	public boolean remove(Object e) {
 		if(size <= 0) return false;
-		for(Entry KEY_GENERIC_TYPE entry = first;entry.next != null;entry = entry.next) {
+		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
 			if(KEY_EQUALS(entry.value, e)) {
 				unlink(entry);
 				return true;
@@ -949,6 +939,7 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
 			a[i++] = (E)KEY_TO_OBJ(entry.value);
 		}
+		if (a.length > size) a[size] = null;
 		return a;
 	}
 	
@@ -958,8 +949,9 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		if(a.length < size) a = new KEY_TYPE[size];
 		int i = 0;
 		for(Entry KEY_GENERIC_TYPE entry = first;entry != null;entry = entry.next) {
-			a[i++] = KEY_TO_OBJ(entry.value);
+			a[i++] = entry.value;
 		}
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
 		return a;
 	}
 	
@@ -1118,23 +1110,23 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	
 	private class ListIter implements LIST_ITERATOR KEY_GENERIC_TYPE 
 	{
-		Entry KEY_GENERIC_TYPE node;
+		Entry KEY_GENERIC_TYPE next;
 		Entry KEY_GENERIC_TYPE lastReturned;
 		int index;
 		
-		ListIter(Entry KEY_GENERIC_TYPE node, int index) {
+		ListIter(Entry KEY_GENERIC_TYPE next, int index) {
-			this.node = node;
+			this.next = next;
 			this.index = index;
 		}
 		
 		@Override
 		public boolean hasNext() {
-			return node != null;
+			return index < size;
 		}
 		
 		@Override
 		public boolean hasPrevious() {
-			return node != null;
+			return index > 0;
 		}
 		
 		@Override
@@ -1150,23 +1142,26 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		@Override
 		public void remove() {
 			if(lastReturned == null) throw new IllegalStateException();
-			if(lastReturned.next == node) index--;
+			Entry KEY_GENERIC_TYPE lastNext = lastReturned.next;
 			unlink(lastReturned);
+			if (next == lastReturned) next = lastNext;
+			else index--;
 			lastReturned = null;
 		}
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
-			lastReturned = node;
+			if(!hasPrevious()) throw new NoSuchElementException();
-			node = node.prev;
+            lastReturned = next = (next == null) ? last : next.prev;
 			index--;
 			return lastReturned.value;
 		}
 		
 		@Override
 		public KEY_TYPE NEXT() {
-			lastReturned = node;
+			if(!hasNext()) throw new NoSuchElementException();
-			node = node.next;
+			lastReturned = next;
+			next = next.next;
 			index++;
 			return lastReturned.value;
 		}
@@ -1179,11 +1174,10 @@ public class LINKED_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 		
 		@Override
 		public void add(KEY_TYPE e) {
-			if(lastReturned == null) throw new IllegalStateException();
+            lastReturned = null;
-			if(node.next == null) linkLast(e);
+            if (next == null) linkLast(e);
-			else linkBefore(e, node);
+            else linkBefore(e, next);
-			lastReturned = null;
+            index++;
-			index++;
 		}
 	}
 	

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

@@ -1389,6 +1389,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 	
 	private class MapIterator {
 		int pos = nullIndex;
+		int returnedPos = -1;
 		int lastReturned = -1;
 		int nextIndex = Integer.MIN_VALUE;
 		boolean returnNull = containsNull;
@@ -1420,6 +1421,7 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 		
 		public int nextEntry() {
 			if(!hasNext()) throw new NoSuchElementException();
+			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
 				int value = findIndex(wrapped.GET_KEY(nextIndex));
@@ -1439,9 +1441,10 @@ public class CUSTOM_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VAL
 				keys[nullIndex] = EMPTY_KEY_VALUE;
 				values[nullIndex] = EMPTY_VALUE;
 			}
-			else if(lastReturned >= 0) shiftKeys(lastReturned);
+			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				CUSTOM_HASH_MAP.this.remove(wrapped.GET_KEY(-lastReturned - 1));
+				CUSTOM_HASH_MAP.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				lastReturned = -1;
 				return;
 			}
 			size--;

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

@@ -1345,6 +1345,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 	
 	private class MapIterator {
 		int pos = nullIndex;
+		int returnedPos = -1;
 		int lastReturned = -1;
 		int nextIndex = Integer.MIN_VALUE;
 		boolean returnNull = containsNull;
@@ -1376,6 +1377,7 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 		
 		public int nextEntry() {
 			if(!hasNext()) throw new NoSuchElementException();
+			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
 				int value = findIndex(wrapped.GET_KEY(nextIndex));
@@ -1395,9 +1397,10 @@ public class HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GENE
 				keys[nullIndex] = EMPTY_KEY_VALUE;
 				values[nullIndex] = EMPTY_VALUE;
 			}
-			else if(lastReturned >= 0) shiftKeys(lastReturned);
+			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				HASH_MAP.this.remove(wrapped.GET_KEY(-lastReturned - 1));
+				HASH_MAP.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				lastReturned = -1;
 				return;
 			}
 			size--;

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

@@ -261,7 +261,7 @@ public class IMMUTABLE_HASH_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_
 					newValues[pos] = b[i];
 					continue;
 				}
-				while(KEY_EQUALS_NOT_NULL((current = newKeys[pos = (++pos & mask)]))) {
+				while(KEY_EQUALS_NOT_NULL((current = newKeys[pos = (++pos & newMask)]))) {
 					if(KEY_EQUALS(current, o)) {
 						found = false;
 						newValues[pos] = b[i];

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

@@ -202,8 +202,11 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	@Override
 	public VALUE_TYPE putIfAbsent(KEY_TYPE key, VALUE_TYPE value) {
 		int index = findIndex(key);
-		if(index >= 0) insertIndex(size++, key, value);
+		if(index < 0) {
-		return getDefaultReturnValue();
+			insertIndex(size++, key, value);
+			return getDefaultReturnValue();
+		}
+		return values[index];
 	}
 	
 #if VALUE_PRIMITIVES
@@ -463,6 +466,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	
 	@Override
 	public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
 		int index = findIndex(key);
 		if(index == -1) {
 			VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, getDefaultReturnValue());
@@ -481,6 +485,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	
 	@Override
 	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
 		int index = findIndex(key);
 		if(index == -1) {
 			VALUE_TYPE newValue = mappingFunction.GET_VALUE(key);
@@ -488,11 +493,18 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			insertIndex(size++, key, newValue);
 			return newValue;
 		}
-		return values[index];
+		VALUE_TYPE newValue = values[index];
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = mappingFunction.GET_VALUE(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		return newValue;
 	}
 	
 	@Override
 	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
+		Objects.requireNonNull(valueProvider);
 		int index = findIndex(key);
 		if(index == -1) {
 			VALUE_TYPE newValue = valueProvider.VALUE_GET_KEY();
@@ -500,13 +512,20 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			insertIndex(size++, key, newValue);
 			return newValue;
 		}
-		return values[index];
+		VALUE_TYPE newValue = values[index];
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = valueProvider.VALUE_GET_KEY();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		return newValue;
 	}
 	
 	@Override
 	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
 		int index = findIndex(key);
-		if(index == -1) return getDefaultReturnValue();
+		if(index == -1 || VALUE_EQUALS(values[index], getDefaultReturnValue())) return getDefaultReturnValue();
 		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 			removeIndex(index);
@@ -518,8 +537,12 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	
 	@Override
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
+		Objects.requireNonNull(mappingFunction);
+#if VALUE_OBJECT
+		Objects.requireNonNull(value);
+#endif
 		int index = findIndex(key);
-		VALUE_TYPE newValue = index == -1 ? value : mappingFunction.APPLY_VALUE(values[index], value);
+		VALUE_TYPE newValue = index == -1 || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? value : mappingFunction.APPLY_VALUE(values[index], value);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 			if(index >= 0)
 				removeIndex(index);
@@ -535,7 +558,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
 			KEY_TYPE key = entry.ENTRY_KEY();
 			int index = findIndex(key);
-			VALUE_TYPE newValue = index == -1 ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
+			VALUE_TYPE newValue = index == -1 || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 				if(index >= 0)
 					removeIndex(index);
@@ -683,21 +706,18 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 	
 #endif
 	protected int findIndex(Object key, Object value) {
-		if(key == null || value == null) return -1;
 		for(int i = size-1;i>=0;i--)
 			if(EQUALS_KEY_TYPE(keys[i], key) && EQUALS_VALUE_TYPE(values[i], value)) return i;
 		return -1;		
 	}
 	
 	protected int findIndex(Object key) {
-		if(key == null) return -1;
 		for(int i = size-1;i>=0;i--)
 			if(EQUALS_KEY_TYPE(keys[i], key)) return i;
 		return -1;
 	}
 	
 	protected int findValue(Object value) {
-		if(value == null) return -1;
 		for(int i = size-1;i>=0;i--)
 			if(EQUALS_VALUE_TYPE(values[i], value)) return i;
 		return -1;
@@ -1069,21 +1089,18 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		
 #endif
 		protected int findIndex(Object key, Object value) {
-			if(key == null || value == null) return -1;
 			for(int i = length-1;i>=0;i--)
 				if(EQUALS_KEY_TYPE(keys[offset+i], key) && EQUALS_VALUE_TYPE(values[offset+i], value)) return i+offset;
 			return -1;		
 		}
 		
 		protected int findIndex(Object key) {
-			if(key == null) return -1;
 			for(int i = length-1;i>=0;i--)
 				if(EQUALS_KEY_TYPE(keys[offset+i], key)) return i+offset;
 			return -1;
 		}
 		
 		protected int findValue(Object value) {
-			if(value == null) return -1;
 			for(int i = length-1;i>=0;i--)
 				if(EQUALS_VALUE_TYPE(values[offset+i], value)) return i+offset;
 			return -1;
@@ -1268,8 +1285,14 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			@Deprecated
 			public boolean contains(Object o) {
 				if(o instanceof Map.Entry) {
-					if(o instanceof MAP.Entry) return SubMap.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+					if(o instanceof MAP.Entry) {
-					return SubMap.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+						MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+						return SubMap.this.findIndex(entry.ENTRY_KEY(), entry.ENTRY_VALUE()) >= 0;
+					}
+					else {
+						Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+						return ARRAY_MAP.this.findIndex(entry.getKey(), entry.getValue()) >= 0;
+					}
 				}
 				return false;
 			}
@@ -1318,7 +1341,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			@Override
 			public boolean remove(Object o) {
 				int oldSize = length;
-				remove(o);
+				SubMap.this.remove(o);
 				return length != oldSize;
 			}
 			
@@ -1329,7 +1352,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			@Override
 			public boolean remove(KEY_TYPE o) {
 				int oldSize = length;
-				remove(o);
+				SubMap.this.remove(o);
 				return length != oldSize;
 			}
 			
@@ -1737,12 +1760,14 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 			}
 			
 			public int previousEntry() {
+				if(!hasPrevious()) throw new NoSuchElementException();
 				int returnIndex = offset+index;
 				lastReturned = index--;
 				return returnIndex;
 			}
 			
 			public int nextEntry() {
+				if(!hasNext()) throw new NoSuchElementException();
 				int returnIndex = offset+index;
 				lastReturned = index++;
 				return returnIndex;
@@ -1944,8 +1969,16 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		@Deprecated
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return ARRAY_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return ARRAY_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					int index = ARRAY_MAP.this.findIndex(entry.ENTRY_KEY());
+					if(index >= 0) return VALUE_EQUALS(entry.ENTRY_VALUE(), ARRAY_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					int index = ARRAY_MAP.this.findIndex(entry.getKey());
+					if(index >= 0) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(ARRAY_MAP.this.values[index]));
+				}
 			}
 			return false;
 		}
@@ -1994,7 +2027,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		@Override
 		public boolean remove(Object o) {
 			int oldSize = size;
-			remove(o);
+			ARRAY_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -2005,7 +2038,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		@Override
 		public boolean remove(KEY_TYPE o) {
 			int oldSize = size;
-			remove(o);
+			ARRAY_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -2401,11 +2434,13 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		}
 		
 		public int previousEntry() {
+			if(!hasPrevious()) throw new NoSuchElementException();
 			lastReturned = index;
 			return index--;
 		}
 		
 		public int nextEntry() {
+			if(!hasNext()) throw new NoSuchElementException();
 			lastReturned = index;
 			return index++;
 		}
@@ -2480,7 +2515,7 @@ public class ARRAY_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_GEN
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "->" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
 		}
 	}
 }

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

@@ -183,6 +183,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 #endif
 	@Override
 	public boolean containsKey(Object key) {
+		if(!keyType.isInstance(key)) return false;
 		return isSet(((T)key).ordinal());
 	}
 	
@@ -190,7 +191,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	@Override
 	public boolean containsValue(Object value) {
 		for(int i = 0;i<values.length;i++)
-			if(VALUE_EQUALS(value, values[i])) return true;
+			if(isSet(i) && VALUE_EQUALS(value, values[i])) return true;
 		return false;
 	}
 	
@@ -198,13 +199,25 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	@Override
 	public boolean containsValue(VALUE_TYPE value) {
 		for(int i = 0;i<values.length;i++)
-			if(VALUE_EQUALS(value, values[i])) return true;
+			if(isSet(i) && VALUE_EQUALS(value, values[i])) return true;
 		return false;
 	}
 	
 #endif
+	@Override
+	public CLASS_VALUE_TYPE remove(Object key) {
+		if(!keyType.isInstance(key)) return getDefaultReturnValue();
+		int index = ((T)key).ordinal();
+		if(!isSet(index)) return getDefaultReturnValue();
+		clear(index);
+		VALUE_TYPE result = values[index];
+		values[index] = EMPTY_VALUE;
+		return result;
+	}
+	
 	@Override
 	public VALUE_TYPE rem(T key) {
+		if(!keyType.isInstance(key)) return getDefaultReturnValue();
 		int index = key.ordinal();
 		if(!isSet(index)) return getDefaultReturnValue();
 		clear(index);
@@ -246,6 +259,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 #endif
 	@Override
 	public VALUE_TYPE GET_VALUE(T key) {
+		if(!keyType.isInstance(key)) return getDefaultReturnValue();
 		int index = key.ordinal();
 		return isSet(index) ? values[index] : getDefaultReturnValue();
 	}
@@ -253,6 +267,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 #if VALUE_OBJECT
 	@Override
 	public VALUE_TYPE getOrDefault(Object key, VALUE_TYPE defaultValue) {
+		if(!keyType.isInstance(key)) return defaultValue;
 		int index = ((T)key).ordinal();
 		return isSet(index) ? values[index] : defaultValue;
 	}
@@ -260,6 +275,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 #else
 	@Override
 	public VALUE_TYPE getOrDefault(T key, VALUE_TYPE defaultValue) {
+		if(!keyType.isInstance(key)) return defaultValue;
 		int index = key.ordinal();
 		return isSet(index) ? values[index] : defaultValue;
 	}
@@ -347,7 +363,13 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 			values[index] = newValue;			
 			return newValue;
 		}
-		return values[index];
+		VALUE_TYPE newValue = values[index];
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = mappingFunction.GET_VALUE(key);
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		return newValue;
 	}
 	
 	@Override
@@ -360,13 +382,19 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 			values[index] = newValue;			
 			return newValue;
 		}
-		return values[index];
+		VALUE_TYPE newValue = values[index];
+		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
+			newValue = valueProvider.VALUE_GET_KEY();
+			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) return newValue;
+			values[index] = newValue;
+		}
+		return newValue;
 	}
 	
 	@Override
 	public VALUE_TYPE COMPUTE_IF_PRESENT(T key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		int index = key.ordinal();
-		if(!isSet(index)) return getDefaultReturnValue();
+		if(!isSet(index) || VALUE_EQUALS(values[index], getDefaultReturnValue())) return getDefaultReturnValue();
 		VALUE_TYPE newValue = mappingFunction.APPLY_VALUE(key, values[index]);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 			clear(index);
@@ -380,7 +408,10 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	@Override
 	public VALUE_TYPE MERGE(T key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		int index = key.ordinal();
-		VALUE_TYPE newValue = !isSet(index) ? value : mappingFunction.APPLY_VALUE(values[index], value);
+#if VALUE_OBJECT
+		Objects.requireNonNull(value);
+#endif
+		VALUE_TYPE newValue = !isSet(index) || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? value : mappingFunction.APPLY_VALUE(values[index], value);
 		if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 			if(isSet(index)) {
 				clear(index);
@@ -401,7 +432,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		for(MAP.Entry KEY_VALUE_GENERIC_TYPE entry : MAPS.fastIterable(m)) {
 			T key = entry.ENTRY_KEY();
 			int index = key.ordinal();
-			VALUE_TYPE newValue = !isSet(index) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
+			VALUE_TYPE newValue = !isSet(index) || VALUE_EQUALS(values[index], getDefaultReturnValue()) ? entry.ENTRY_VALUE() : mappingFunction.APPLY_VALUE(values[index], entry.ENTRY_VALUE());
 			if(VALUE_EQUALS(newValue, getDefaultReturnValue())) {
 				if(isSet(index)) {
 					clear(index);
@@ -424,6 +455,11 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		Arrays.fill(values, EMPTY_VALUE);
 	}
 	
+	@Override
+	public int size() {
+		return size;
+	}
+	
 	protected void onNodeAdded(int index) {
 		
 	}
@@ -433,9 +469,9 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	}
 	
 	protected void set(int index) {
-		size++;
-		present[index >> 6] |= (1L << index); 
 		onNodeAdded(index);
+		present[index >> 6] |= (1L << index); 
+		size++;
 	}
 	protected void clear(int index) { 
 		size--;
@@ -452,7 +488,20 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		
 		@Override
 		public boolean contains(Object o) {
-			if(o instanceof Map.Entry) return containsKey(((Map.Entry<?, ?>)o).getKey());
+			if(o instanceof Map.Entry) {
+				if(o instanceof MAP.Entry) {
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					if(!keyType.isInstance(entry.ENTRY_KEY())) return false;
+					int index = ((T)entry.ENTRY_KEY()).ordinal();
+					if(index >= 0 && ENUM_MAP.this.isSet(index)) return VALUE_EQUALS(entry.ENTRY_VALUE(), ENUM_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					if(!keyType.isInstance(entry.getKey())) return false;
+					int index = ((T)entry.getKey()).ordinal();
+					if(index >= 0 && ENUM_MAP.this.isSet(index)) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(ENUM_MAP.this.values[index]));
+				}
+			}
 			return false;
 		}
 		
@@ -548,8 +597,7 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 	class EntryIterator extends MapIterator implements ObjectIterator<MAP.Entry KEY_VALUE_GENERIC_TYPE> {
 		@Override
 		public MAP.Entry KEY_VALUE_GENERIC_TYPE next() {
-			int index = nextEntry();
+			return new MapEntry(nextEntry());
-			return new BasicEntry<>(keys[index], values[index]);
 		}
 	}
 	
@@ -584,13 +632,74 @@ public class ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE
 		public int nextEntry() {
 			if(!hasNext()) throw new NoSuchElementException();
 			lastReturnValue = nextIndex;
-			return nextIndex;
+			nextIndex = -1;
+			return lastReturnValue;
 		}
 		
 		public void remove() {
 			if(lastReturnValue == -1) throw new IllegalStateException();
 			clear(lastReturnValue);
 			values[lastReturnValue] = EMPTY_VALUE;
+			lastReturnValue = -1;
+		}
+	}
+	
+	protected class MapEntry implements MAP.Entry KEY_VALUE_GENERIC_TYPE, Map.Entry<CLASS_TYPE, CLASS_VALUE_TYPE> {
+		public int index = -1;
+		
+		public MapEntry() {}
+		public MapEntry(int index) {
+			this.index = index;
+		}
+
+		@Override
+		public KEY_TYPE ENTRY_KEY() {
+			return keys[index];
+		}
+
+		@Override
+		public VALUE_TYPE ENTRY_VALUE() {
+			return values[index];
+		}
+
+		@Override
+		public VALUE_TYPE setValue(VALUE_TYPE value) {
+			VALUE_TYPE oldValue = values[index];
+			values[index] = value;
+			return oldValue;
+		}
+		
+		@Override
+		public boolean equals(Object obj) {
+			if(obj instanceof Map.Entry) {
+				if(obj instanceof MAP.Entry) {
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)obj;
+					return KEY_EQUALS(keys[index], entry.ENTRY_KEY()) && VALUE_EQUALS(values[index], entry.ENTRY_VALUE());
+				}
+				Map.Entry<?, ?> entry = (Map.Entry<?, ?>)obj;
+				Object key = entry.getKey();
+				Object value = entry.getValue();
+#if TYPE_OBJECT && VALUE_OBJECT
+				return KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], value);
+#else if TYPE_OBJECT
+				return value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], key) && VALUE_EQUALS(values[index], CLASS_TO_VALUE(value));
+#else if VALUE_OBJECT
+				return key instanceof CLASS_TYPE && KEY_EQUALS(keys[index], CLASS_TO_KEY(key)) && VALUE_EQUALS(values[index], value);
+#else
+				return key instanceof CLASS_TYPE && value instanceof CLASS_VALUE_TYPE && KEY_EQUALS(keys[index], CLASS_TO_KEY(key)) && VALUE_EQUALS(values[index], CLASS_TO_VALUE(value));
+#endif
+			}
+			return false;
+		}
+		
+		@Override
+		public int hashCode() {
+			return KEY_TO_HASH(keys[index]) ^ VALUE_TO_HASH(values[index]);
+		}
+		
+		@Override
+		public String toString() {
+			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
 		}
 	}
 }

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

@@ -109,7 +109,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 			links = enumMap.links.clone();
 			size = enumMap.size;
 		}
-		if(map instanceof ENUM_MAP) {
+		else if(map instanceof ENUM_MAP) {
 			ENUM_MAP KEY_VALUE_GENERIC_TYPE enumMap = (ENUM_MAP KEY_VALUE_GENERIC_TYPE)map;
 			keyType = enumMap.keyType;
 			keys = enumMap.keys;
@@ -156,7 +156,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 			links = enumMap.links.clone();
 			size = enumMap.size;
 		}
-		if(map instanceof ENUM_MAP) {
+		else if(map instanceof ENUM_MAP) {
 			ENUM_MAP KEY_VALUE_GENERIC_TYPE enumMap = (ENUM_MAP KEY_VALUE_GENERIC_TYPE)map;
 			keyType = enumMap.keyType;
 			keys = enumMap.keys;
@@ -519,8 +519,18 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		@Deprecated
 		public boolean contains(Object o) {
 			if(o instanceof Map.Entry) {
-				if(o instanceof MAP.Entry) return LINKED_ENUM_MAP.this.containsKey(((MAP.Entry KEY_VALUE_GENERIC_TYPE)o).ENTRY_KEY());
+				if(o instanceof MAP.Entry) {
-				return LINKED_ENUM_MAP.this.containsKey(((Map.Entry<?, ?>)o).getKey());
+					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
+					if(!keyType.isInstance(entry.ENTRY_KEY())) return false;
+					int index = ((T)entry.ENTRY_KEY()).ordinal();
+					if(index >= 0 && LINKED_ENUM_MAP.this.isSet(index)) return VALUE_EQUALS(entry.ENTRY_VALUE(), LINKED_ENUM_MAP.this.values[index]);
+				}
+				else {
+					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
+					if(!keyType.isInstance(entry.getKey())) return false;
+					int index = ((T)entry.getKey()).ordinal();
+					if(index >= 0 && LINKED_ENUM_MAP.this.isSet(index)) return Objects.equals(entry.getValue(), VALUE_TO_OBJ(LINKED_ENUM_MAP.this.values[index]));
+				}
 			}
 			return false;
 		}
@@ -572,7 +582,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		@Override
 		public boolean remove(Object o) {
 			int oldSize = size;
-			remove(o);
+			LINKED_ENUM_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -585,7 +595,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		@Override
 		public boolean remove(T o) {
 			int oldSize = size;
-			remove(o);
+			LINKED_ENUM_MAP.this.remove(o);
 			return size != oldSize;
 		}
 		
@@ -887,6 +897,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 				previous = (int)(links[current] >>> 32);
 			}
 			else next = (int)links[current];
+			
 			size--;
 			if(previous == -1) firstIndex = next;
 			else links[previous] ^= ((links[previous] ^ (next & 0xFFFFFFFFL)) & 0xFFFFFFFFL);
@@ -894,6 +905,8 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 			if (next == -1) lastIndex = previous;
 			else links[next] ^= ((links[next] ^ ((previous & 0xFFFFFFFFL) << 32)) & 0xFFFFFFFF00000000L);
 			values[current] = EMPTY_VALUE;
+			present[current >> 6] &= ~(1L << current);
+			current = -1;
 		}
 		
 		public int previousEntry() {
@@ -985,7 +998,7 @@ public class LINKED_ENUM_MAP KEY_ENUM_VALUE_GENERIC_TYPE extends ENUM_MAP KEY_VA
 		
 		@Override
 		public String toString() {
-			return KEY_TO_STRING(keys[index]) + "->" + VALUE_TO_STRING(values[index]);
+			return KEY_TO_STRING(keys[index]) + "=" + VALUE_TO_STRING(values[index]);
 		}
 	}
 }

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

@@ -234,7 +234,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	@Override
 	public VALUE_TYPE put(KEY_TYPE key, VALUE_TYPE value) {
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
@@ -271,7 +271,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	@Override
 	public VALUE_TYPE putIfAbsent(KEY_TYPE key, VALUE_TYPE value) {
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
@@ -309,7 +309,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	@Override
 	public VALUE_TYPE addTo(KEY_TYPE key, VALUE_TYPE value) {
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
@@ -521,7 +521,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
@@ -543,7 +543,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
@@ -564,7 +564,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
 		Objects.requireNonNull(valueProvider);
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
@@ -585,7 +585,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null || VALUE_EQUALS(entry.value, getDefaultReturnValue())) return getDefaultReturnValue();
@@ -602,7 +602,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		VALUE_TYPE newValue = entry == null || VALUE_EQUALS(entry.value, getDefaultReturnValue()) ? value : mappingFunction.APPLY_VALUE(entry.value, value);
@@ -899,6 +899,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 		}
 	}
 	
+	protected void validate(KEY_TYPE k) { compare(k, k); }
 	protected int compare(KEY_TYPE k, KEY_TYPE v) { return comparator != null ? comparator.compare(k, v) : COMPAREABLE_TO_KEY(k, v);}
 	
 	/** From CLR */
@@ -1532,13 +1533,13 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 				if(o instanceof Map.Entry) {
 					if(o instanceof MAP.Entry) {
 						MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
-						if(entry.getKey() == null) return false;
+						if(entry.getKey() == null && comparator() == null) return false;
 						AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = m.findNode(entry.ENTRY_KEY());
 						if(subEntry != null) return VALUE_EQUALS(entry.ENTRY_VALUE(), subEntry.value);
 					}
 					else {
 						Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
-						if(entry.getKey() == null) return false;
+						if(entry.getKey() == null && comparator() == null) return false;
 #if !TYPE_OBJECT
 						if(!(entry.getKey() instanceof CLASS_TYPE)) return false;
 #endif
@@ -1938,13 +1939,13 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
 			if(o instanceof Map.Entry) {
 				if(o instanceof MAP.Entry) {
 					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
-					if(entry.getKey() == null) return false;
+					if(entry.getKey() == null && comparator() == null) return false;
 					AVL_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = AVL_TREE_MAP.this.findNode(entry.ENTRY_KEY());
 					if(subEntry != null) return VALUE_EQUALS(entry.ENTRY_VALUE(), subEntry.value);
 				}
 				else {
 					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
-					if(entry.getKey() == null) return false;
+					if(entry.getKey() == null && comparator() == null) return false;
 #if !TYPE_OBJECT
 					if(!(entry.getKey() instanceof CLASS_TYPE)) return false;
 #endif

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

@@ -234,7 +234,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	@Override
 	public VALUE_TYPE put(KEY_TYPE key, VALUE_TYPE value) {
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
@@ -271,7 +271,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	@Override
 	public VALUE_TYPE putIfAbsent(KEY_TYPE key, VALUE_TYPE value) {
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 
 		if(tree == null) {
@@ -310,7 +310,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	@Override
 	public VALUE_TYPE addTo(KEY_TYPE key, VALUE_TYPE value) {
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		if(tree == null) {
 			tree = first = last = new EntryKV_BRACES(key, value, null);
@@ -521,7 +521,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	public VALUE_TYPE COMPUTE(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
@@ -543,7 +543,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	public VALUE_TYPE COMPUTE_IF_ABSENT(KEY_TYPE key, FUNCTION KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
@@ -564,7 +564,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	public VALUE_TYPE SUPPLY_IF_ABSENT(KEY_TYPE key, VALUE_SUPPLIER VALUE_GENERIC_TYPE valueProvider) {
 		Objects.requireNonNull(valueProvider);
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null) {
@@ -585,7 +585,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	public VALUE_TYPE COMPUTE_IF_PRESENT(KEY_TYPE key, UNARY_OPERATOR KEY_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		if(entry == null || VALUE_EQUALS(entry.value, getDefaultReturnValue())) return getDefaultReturnValue();
@@ -602,7 +602,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 	public VALUE_TYPE MERGE(KEY_TYPE key, VALUE_TYPE value, VALUE_UNARY_OPERATOR VALUE_VALUE_GENERIC_TYPE mappingFunction) {
 		Objects.requireNonNull(mappingFunction);
 #if TYPE_OBJECT
-		Objects.requireNonNull(key);
+		validate(key);
 #endif
 		Entry KEY_VALUE_GENERIC_TYPE entry = findNode(key);
 		VALUE_TYPE newValue = entry == null || VALUE_EQUALS(entry.value, getDefaultReturnValue()) ? value : mappingFunction.APPLY_VALUE(entry.value, value);
@@ -905,6 +905,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 		}
 	}
 	
+	protected void validate(KEY_TYPE k) { compare(k, k); }
 	protected int compare(KEY_TYPE k, KEY_TYPE v) { return comparator != null ? comparator.compare(k, v) : COMPAREABLE_TO_KEY(k, v);}
 	protected static GENERIC_KEY_VALUE_BRACES boolean isBlack(Entry KEY_VALUE_GENERIC_TYPE p) { return p == null || p.isBlack(); }
 	protected static GENERIC_KEY_VALUE_BRACES Entry KEY_VALUE_GENERIC_TYPE parentOf(Entry KEY_VALUE_GENERIC_TYPE p) { return (p == null ? null : p.parent); }
@@ -1587,13 +1588,13 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 				if(o instanceof Map.Entry) {
 					if(o instanceof MAP.Entry) {
 						MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
-						if(entry.getKey() == null) return false;
+						if(entry.getKey() == null && comparator() == null) return false;
 						RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = m.findNode(entry.ENTRY_KEY());
 						if(subEntry != null) return VALUE_EQUALS(entry.ENTRY_VALUE(), subEntry.value);
 					}
 					else {
 						Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
-						if(entry.getKey() == null) return false;
+						if(entry.getKey() == null && comparator() == null) return false;
 #if !TYPE_OBJECT
 						if(!(entry.getKey() instanceof CLASS_TYPE)) return false;
 #endif
@@ -1993,13 +1994,13 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
 			if(o instanceof Map.Entry) {
 				if(o instanceof MAP.Entry) {
 					MAP.Entry KEY_VALUE_GENERIC_TYPE entry = (MAP.Entry KEY_VALUE_GENERIC_TYPE)o;
-					if(entry.getKey() == null) return false;
+					if(entry.getKey() == null && comparator() == null) return false;
 					RB_TREE_MAP.Entry KEY_VALUE_GENERIC_TYPE subEntry = RB_TREE_MAP.this.findNode(entry.ENTRY_KEY());
 					if(subEntry != null) return VALUE_EQUALS(entry.ENTRY_VALUE(), subEntry.value);
 				}
 				else {
 					Map.Entry<?, ?> entry = (Map.Entry<?, ?>)o;
-					if(entry.getKey() == null) return false;
+					if(entry.getKey() == null && comparator() == null) return false;
 #if !TYPE_OBJECT
 					if(!(entry.getKey() instanceof CLASS_TYPE)) return false;
 #endif

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

@@ -213,6 +213,9 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 #endif
 	@Override
 	public boolean add(KEY_TYPE o) {
+#if TYPE_OBJECT
+		validate(o);
+#endif
 		if(tree == null) {
 			tree = first = last = new EntryBRACES(o, null);
 			size++;
@@ -242,7 +245,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 		fixAfterInsertion(adding);
 		size++;
-		return false;
+		return true;
 	}
 	
 	@Override
@@ -652,6 +655,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 	}
 	
+	protected void validate(KEY_TYPE k) { compare(k, k); }
 	protected int compare(KEY_TYPE k, KEY_TYPE v) { return comparator != null ? comparator.compare(k, v) : COMPAREABLE_TO_KEY(k, v);}
 	
 	/** From CLR */

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

@@ -74,8 +74,8 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	 * @throws NegativeArraySizeException if the length is negative
 	 */
 	public ARRAY_SET(KEY_TYPE[] array, int length) {
-		data = Arrays.copyOf(array, length);
+		this(length);
-		size = length;
+		addAll(array, length);
 	}
 	
 	/**
@@ -548,6 +548,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
 		if(a == null || a.length < size()) return Arrays.copyOf(data, size());
 		System.arraycopy(data, 0, a, 0, size());
+		if (a.length > size) a[size] = EMPTY_KEY_VALUE;
 		return a;
 	}
 	
@@ -568,6 +569,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		else if(a.length < size()) a = (E[])ObjectArrays.newArray(a.getClass().getComponentType(), size());
 		for(int i = 0;i<size();i++)
 			a[i] = (E)KEY_TO_OBJ(data[i]);
+		if (a.length > size) a[size] = null;
 		return a;
 	}
 	
@@ -841,6 +843,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 			
 			@Override
 			public KEY_TYPE NEXT() {
+				if(!hasNext()) throw new NoSuchElementException();
 				lastReturned = index;
 				return data[index++];
 			}
@@ -852,6 +855,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 			
 			@Override
 			public KEY_TYPE PREVIOUS() {
+				if(!hasPrevious()) throw new NoSuchElementException();
 				lastReturned = index;
 				return data[index--];
 			}
@@ -924,6 +928,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		
 		@Override
 		public KEY_TYPE NEXT() {
+			if(!hasNext()) throw new NoSuchElementException();
 			lastReturned = index;
 			return data[index++];
 		}
@@ -935,6 +940,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		
 		@Override
 		public KEY_TYPE PREVIOUS() {
+			if(!hasPrevious()) throw new NoSuchElementException();
 			lastReturned = index;
 			return data[index--];
 		}
@@ -951,11 +957,9 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 		
 		@Override
 		public void remove() {
-			if(lastReturned == -1)
+			if(lastReturned == -1) throw new IllegalStateException();
-				throw new IllegalStateException();
 			ARRAY_SET.this.remove(data[lastReturned]);
-			if(lastReturned < index)
+			if(lastReturned < index) index--;
-				index--;
 			lastReturned = -1;
 		}
 		

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

@@ -190,7 +190,18 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 		{
 			KEY_TYPE o = a[i];
 			if(KEY_EQUALS_NULL(o)) {
-				if(!containsNull) size++;
+				if(!containsNull) {
+					size++;
+					if(prev != -1) {
+						newLinks[prev] ^= ((newLinks[prev] ^ (newSize & 0xFFFFFFFFL)) & 0xFFFFFFFFL);
+						newLinks[newSize] ^= ((newLinks[newSize] ^ ((prev & 0xFFFFFFFFL) << 32)) & 0xFFFFFFFF00000000L);
+						prev = newSize;
+					}
+					else {
+						prev = firstIndex = newSize;
+						newLinks[newSize] = -1L;
+					}
+				}
 				containsNull = true;
 				continue;
 			}
@@ -199,7 +210,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 			KEY_TYPE current = newKeys[pos];
 			if(KEY_EQUALS_NOT_NULL(current)) {
 				if(KEY_EQUALS(current, o)) continue;
-				while(KEY_EQUALS_NOT_NULL((current = newKeys[pos = (++pos & mask)]))) {
+				while(KEY_EQUALS_NOT_NULL((current = newKeys[pos = (++pos & newMask)]))) {
 					if(KEY_EQUALS(current, o)) {
 						found = false;
 						break;
@@ -220,7 +231,7 @@ public class IMMUTABLE_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERI
 				}
 			}
 		}
-		nullIndex = size;
+		nullIndex = newSize;
 		mask = newMask;
 		keys = newKeys;
 		links = newLinks;

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

@@ -602,6 +602,7 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 	
 	private class SetIterator implements ITERATOR KEY_GENERIC_TYPE {
 		int pos = nullIndex;
+		int returnedPos = -1;
 		int lastReturned = -1;
 		int nextIndex = Integer.MIN_VALUE;
 		boolean returnNull = containsNull;
@@ -634,6 +635,7 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 		@Override
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
+			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
 				KEY_TYPE value = wrapped.GET_KEY(nextIndex);
@@ -652,9 +654,10 @@ public class CUSTOM_HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_T
 				containsNull = false;
 				keys[nullIndex] = EMPTY_KEY_VALUE;
 			}
-			else if(pos >= 0) shiftKeys(pos);
+			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				CUSTOM_HASH_SET.this.remove(wrapped.GET_KEY(-pos - 1));
+				CUSTOM_HASH_SET.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				lastReturned = -1;
 				return;
 			}
 			size--;

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

@@ -559,6 +559,7 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 	
 	private class SetIterator implements ITERATOR KEY_GENERIC_TYPE {
 		int pos = nullIndex;
+		int returnedPos = -1;
 		int lastReturned = -1;
 		int nextIndex = Integer.MIN_VALUE;
 		boolean returnNull = containsNull;
@@ -592,6 +593,7 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		@Override
 		public KEY_TYPE NEXT() {
 			if(!hasNext()) throw new NoSuchElementException();
+			returnedPos = pos;
 			if(nextIndex < 0){
 				lastReturned = Integer.MAX_VALUE;
 				KEY_TYPE value = wrapped.GET_KEY(nextIndex);
@@ -610,9 +612,10 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 				containsNull = false;
 				keys[nullIndex] = EMPTY_KEY_VALUE;
 			}
-			else if(pos >= 0) shiftKeys(pos);
+			else if(returnedPos >= 0) shiftKeys(returnedPos);
 			else {
-				HASH_SET.this.remove(wrapped.GET_KEY(-pos - 1));
+				HASH_SET.this.remove(wrapped.GET_KEY(-returnedPos - 1));
+				lastReturned = -1;
 				return;
 			}
 			size--;

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

@@ -213,6 +213,9 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 #endif
 	@Override
 	public boolean add(KEY_TYPE o) {
+#if TYPE_OBJECT
+		validate(o);
+#endif
 		if(tree == null) {
 			tree = first = last = new EntryBRACES(o, null);
 			size++;
@@ -242,7 +245,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 		fixAfterInsertion(adding);
 		size++;
-		return false;
+		return true;
 	}
 	
 	@Override
@@ -660,6 +663,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		}
 	}
 	
+	protected void validate(KEY_TYPE k) { compare(k, k); }
 	protected int compare(KEY_TYPE k, KEY_TYPE v) { return comparator != null ? comparator.compare(k, v) : COMPAREABLE_TO_KEY(k, v);}
 	protected static GENERIC_KEY_BRACES boolean isBlack(Entry KEY_GENERIC_TYPE p) { return p == null || p.isBlack(); }
 	protected static GENERIC_KEY_BRACES Entry KEY_GENERIC_TYPE parentOf(Entry KEY_GENERIC_TYPE p) { return (p == null ? null : p.parent); }

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

@@ -72,8 +72,8 @@ public class SanityChecks
 	 * @throws IllegalStateException if offset or accessSize is negative or the range goes out of the array-size
 	 */
 	public static void checkArrayCapacity(int arraySize, int offset, int accessSize) {
-		if(offset < 0) throw new IllegalStateException("Offset is negative ("+offset+")");
+		if(offset < 0) throw new IndexOutOfBoundsException("Offset is negative ("+offset+")");
-		else if(accessSize < 0) throw new IllegalStateException("Size is negative ("+accessSize+")");
+		else if(accessSize < 0) throw new IllegalArgumentException("Size is negative ("+accessSize+")");
 		else if(arraySize < offset + accessSize) throw new IndexOutOfBoundsException("Index (" + (offset + accessSize) + ") is not in size (" + arraySize + ")");
 	}
 	

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

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

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

@@ -6,7 +6,9 @@ import java.util.Objects;
 import java.util.function.BiFunction;
 import java.util.function.Supplier;
 
+import com.google.common.collect.testing.AnEnum;
 import com.google.common.collect.testing.MapTestSuiteBuilder;
+import com.google.common.collect.testing.TestEnumMapGenerator;
 import com.google.common.collect.testing.TestStringMapGenerator;
 import com.google.common.collect.testing.features.CollectionFeature;
 import com.google.common.collect.testing.features.CollectionSize;
@@ -20,6 +22,9 @@ import speiger.src.collections.objects.maps.impl.customHash.Object2ObjectOpenCus
 import speiger.src.collections.objects.maps.impl.hash.Object2ObjectLinkedOpenHashMap;
 import speiger.src.collections.objects.maps.impl.hash.Object2ObjectOpenHashMap;
 import speiger.src.collections.objects.maps.impl.immutable.ImmutableObject2ObjectOpenHashMap;
+import speiger.src.collections.objects.maps.impl.misc.Enum2ObjectMap;
+import speiger.src.collections.objects.maps.impl.misc.LinkedEnum2ObjectMap;
+import speiger.src.collections.objects.maps.impl.misc.Object2ObjectArrayMap;
 import speiger.src.collections.objects.maps.impl.tree.Object2ObjectAVLTreeMap;
 import speiger.src.collections.objects.maps.impl.tree.Object2ObjectRBTreeMap;
 import speiger.src.collections.objects.utils.ObjectStrategy;
@@ -34,9 +39,14 @@ public class ObjectMapTests extends TestCase
 		suite.addTest(suite("LinkedHashMap", Object2ObjectLinkedOpenHashMap::new, true));
 		suite.addTest(suite("CustomHashMap", () -> new Object2ObjectOpenCustomHashMap<>(Strategy.INSTANCE), true));
 		suite.addTest(suite("LinkedCustomHashMap", () -> new Object2ObjectLinkedOpenCustomHashMap<>(Strategy.INSTANCE), true));
-		suite.addTest(suite("RBTreeMap", () -> new Object2ObjectRBTreeMap<String, String>(Comparator.naturalOrder()), false));
+		suite.addTest(suite("RBTreeMap_NonNull", Object2ObjectRBTreeMap::new, false));
-		suite.addTest(suite("AVLTreeMap", () -> new Object2ObjectAVLTreeMap<String, String>(Comparator.naturalOrder()), false));
+		suite.addTest(suite("AVLTreeMap_NonNull", Object2ObjectAVLTreeMap::new, false));
+		suite.addTest(suite("RBTreeMap_Null", () -> new Object2ObjectRBTreeMap<>(Comparator.nullsFirst(Comparator.naturalOrder())), true));
+		suite.addTest(suite("AVLTreeMap_Null", () -> new Object2ObjectAVLTreeMap<>(Comparator.nullsFirst(Comparator.naturalOrder())), true));
 		suite.addTest(immutableSuit("ImmutableMap", ImmutableObject2ObjectOpenHashMap::new));
+		suite.addTest(suite("ArrayMap", Object2ObjectArrayMap::new, true));
+		suite.addTest(enumSuite("EnumMap", () -> new Enum2ObjectMap<>(AnEnum.class)));
+		suite.addTest(enumSuite("LinkedEnumMap", () -> new LinkedEnum2ObjectMap<>(AnEnum.class)));
 		return suite;
 	}
 	
@@ -72,6 +82,21 @@ public class ObjectMapTests extends TestCase
 		return builder.createTestSuite();
 	}
 	
+	public static Test enumSuite(String name, Supplier<Map<AnEnum, String>> factory)
+	{
+		MapTestSuiteBuilder<AnEnum, String> builder = MapTestSuiteBuilder.using(new TestEnumMapGenerator() {
+			@Override
+			protected Map<AnEnum, String> create(Map.Entry<AnEnum, String>[] entries) {
+				Map<AnEnum, String> map = factory.get();
+				for(Map.Entry<AnEnum, String> entry : entries) {
+					map.put(entry.getKey(), entry.getValue());
+				}
+				return map;
+			}
+		}).named(name).withFeatures(CollectionSize.ANY, MapFeature.GENERAL_PURPOSE, MapFeature.ALLOWS_NULL_VALUES, CollectionFeature.SUPPORTS_ITERATOR_REMOVE);
+		return builder.createTestSuite();
+	}
+	
 	private static class Strategy implements ObjectStrategy<String>
 	{
 		static final Strategy INSTANCE = new Strategy();

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

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