diff --git a/build.gradle b/build.gradle
index 300362a..8d76ce7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,7 +18,7 @@ repositories {
 }
 
 archivesBaseName = 'Primitive Collections'
-version = '0.6.2.6-SNAPSHOT';
+version = '0.6.2.8-SNAPSHOT';
 
 sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = JavaVersion.current();
 
diff --git a/src/builder/resources/speiger/assets/collections/templates/lists/AbstractList.template b/src/builder/resources/speiger/assets/collections/templates/lists/AbstractList.template
index c678ef2..15ab87c 100644
--- a/src/builder/resources/speiger/assets/collections/templates/lists/AbstractList.template
+++ b/src/builder/resources/speiger/assets/collections/templates/lists/AbstractList.template
@@ -540,7 +540,8 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 		
 		@Override
 		public void add(KEY_TYPE e) {
-			ABSTRACT_LIST.this.add(index++, e);
+			ABSTRACT_LIST.this.add(index, e);
+			index++;
 			lastReturned = -1;
 		}
 		
diff --git a/src/builder/resources/speiger/assets/collections/templates/utils/Collections.template b/src/builder/resources/speiger/assets/collections/templates/utils/Collections.template
index 2045a76..03d554e 100644
--- a/src/builder/resources/speiger/assets/collections/templates/utils/Collections.template
+++ b/src/builder/resources/speiger/assets/collections/templates/utils/Collections.template
@@ -350,7 +350,7 @@ public class COLLECTIONS
 		@Override
 		public boolean contains(KEY_TYPE o) { return false; }
 		@Override
-		public boolean containsAll(COLLECTION KEY_GENERIC_TYPE c) { return false; }
+		public boolean containsAll(COLLECTION KEY_GENERIC_TYPE c) { return c.isEmpty(); }
 		@Override
 		public boolean containsAny(COLLECTION KEY_GENERIC_TYPE c) { return false; }
 #else
@@ -362,7 +362,7 @@ public class COLLECTIONS
 		public boolean containsAny(Collection<?> c) { return false; }
 		@Override
 		@Primitive
-		public boolean containsAll(Collection<?> c) { return false; }
+		public boolean containsAll(Collection<?> c) { return c.isEmpty(); }
 		@Override
 		public int hashCode() { return 0; }
 		
@@ -401,14 +401,28 @@ public class COLLECTIONS
 		public Object[] toArray() { return ObjectArrays.EMPTY_ARRAY; }
 #if !TYPE_OBJECT
 		@Override
-		public <T> T[] toArray(T[] a) { return a; }
+		public <T> T[] toArray(T[] a) {
+			if(a != null && a.length > 0)
+				a[0] = null;
+			return a;
+		}
+		
 		@Override
 		public KEY_TYPE[] TO_ARRAY() { return ARRAYS.EMPTY_ARRAY; }
 		@Override
-		public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) { return a; }
+		public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] a) {
+			if(a != null && a.length > 0)
+				a[0] = EMPTY_KEY_VALUE;
+			return a;
+		}
+		
 #else
 		@Override
-		public <E> E[] toArray(E[] a) { return a; }
+		public <E> E[] toArray(E[] a) {
+			if(a != null && a.length > 0)
+				a[0] = EMPTY_KEY_VALUE;
+			return a;
+		}
 #endif
 		@Override
 		public ITERATOR KEY_GENERIC_TYPE iterator() { return ITERATORS.empty(); }
diff --git a/src/builder/resources/speiger/assets/collections/templates/utils/Iterators.template b/src/builder/resources/speiger/assets/collections/templates/utils/Iterators.template
index 7b06835..0defdd6 100644
--- a/src/builder/resources/speiger/assets/collections/templates/utils/Iterators.template
+++ b/src/builder/resources/speiger/assets/collections/templates/utils/Iterators.template
@@ -299,7 +299,7 @@ public class ITERATORS
 	 * @ArrayType(T)
 	 * @return a Iterator that is wrapping a array.
 	 */
-	public static GENERIC_KEY_BRACES ArrayIterator KEY_GENERIC_TYPE wrap(KEY_TYPE[] a) {
+	public static GENERIC_KEY_BRACES ArrayIterator KEY_GENERIC_TYPE wrap(KEY_TYPE... a) {
 		return wrap(a, 0, a.length);
 	}
 	
@@ -755,7 +755,7 @@ public class ITERATORS
 		
 		@Override
 		public int previousIndex() {
-			return 0;
+			return -1;
 		}
 		
 		@Override
diff --git a/src/builder/resources/speiger/assets/collections/templates/utils/Lists.template b/src/builder/resources/speiger/assets/collections/templates/utils/Lists.template
index 7e08234..2663a00 100644
--- a/src/builder/resources/speiger/assets/collections/templates/utils/Lists.template
+++ b/src/builder/resources/speiger/assets/collections/templates/utils/Lists.template
@@ -1,6 +1,7 @@
 package speiger.src.collections.PACKAGE.utils;
 
 import java.util.Collection;
+import java.util.List;
 import java.util.Objects;
 import java.util.Random;
 import java.util.RandomAccess;
@@ -601,6 +602,16 @@ public class LISTS
 			return ITERATORS.empty();
 		}
 		
+		@Override
+		public int hashCode() { return 1; }
+		
+		@Override
+		public boolean equals(Object o) {
+			if(o == this) return true;
+			if(!(o instanceof List)) return false;
+			return ((List<?>)o).isEmpty();
+		}
+		
 		@Override
 		public LIST KEY_GENERIC_TYPE subList(int from, int to) { throw new UnsupportedOperationException(); }
 		
diff --git a/src/builder/resources/speiger/assets/collections/templates/utils/Sets.template b/src/builder/resources/speiger/assets/collections/templates/utils/Sets.template
index a420738..8d63b4c 100644
--- a/src/builder/resources/speiger/assets/collections/templates/utils/Sets.template
+++ b/src/builder/resources/speiger/assets/collections/templates/utils/Sets.template
@@ -1,6 +1,7 @@
 package speiger.src.collections.PACKAGE.utils;
 
 import java.util.NoSuchElementException;
+import java.util.Set;
 #if TYPE_BOOLEAN
 import speiger.src.collections.booleans.collections.BooleanIterator;
 import speiger.src.collections.booleans.sets.AbstractBooleanSet;
@@ -242,6 +243,13 @@ public class SETS
 		@Override
 		public KEY_TYPE addOrGet(KEY_TYPE o) { throw new UnsupportedOperationException(); }
 #endif
+		@Override
+		public boolean equals(Object o) {
+			if(o == this) return true;
+			if(!(o instanceof Set)) return false;
+			return ((Set<?>)o).isEmpty();
+		}
+		
 		@Override
 		public EmptySet KEY_GENERIC_TYPE copy() { return this; }
 	}