Fixed Unit Test and Added putIfAbsentTest

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

@@ -131,7 +131,8 @@ public class IMMUTABLE_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_T
 	
 	@Override
 	public KEY_TYPE[] getElements(int from, KEY_TYPE[] a, int offset, int length) {
-		SanityChecks.checkArrayCapacity(data.length, offset, length);
+		SanityChecks.checkArrayCapacity(a.length, offset, length);
+		SanityChecks.checkArrayCapacity(data.length, from, length);
 		System.arraycopy(data, from, a, offset, length);
 		return a;
 	}

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

@@ -5,6 +5,7 @@ import java.util.Collection;
 #if !TYPE_BOOLEAN
 import java.util.ConcurrentModificationException;
 #endif
+import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Objects;
 #if TYPE_OBJECT
@@ -635,6 +636,27 @@ public class COLLECTIONS
 				}
 			};
 		}
+		
+		@Override
+		public boolean equals(Object o) {
+			if (o == this)
+				return true;
+			if (!(o instanceof Collection))
+				return false;
+			Collection<?> l = (Collection<?>)o;
+			if(l.size() != size()) return false;
+			Iterator<?> iter = l.iterator();
+			if (iter.hasNext() && !Objects.equals(element, iter.next())) {
+				return false;
+			}
+			return !iter.hasNext();
+		}
+		
+		@Override
+		public int hashCode() {
+			return KEY_TO_HASH(element);
+		}
+		
 		@Override
 		public int size() { return 1; }
 		

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

@@ -33,6 +33,16 @@ public class FILE_KEY_TYPE2FILE_VALUE_TYPEMapPutIfAbsentTester KEY_VALUE_GENERIC
 		expectUnchanged();
 	}
 	
+#ignore
+	@MapFeature.Require(SUPPORTS_PUT)
+#endignore
+	public void testPutIfAbsent_replaceableDefaultValue() {
+		getMap().putIfAbsent(k3(), getMap().getDefaultReturnValue());
+		assertEquals("get(present) should return defaultValue value", getMap().getDefaultReturnValue(), get(k3()));
+		getMap().putIfAbsent(k3(), v3());
+		assertEquals("get(present) value should have been replaced", v3(), get(k3()));
+	}
+	
 #ignore
 	@MapFeature.Require(absent = SUPPORTS_PUT)
 #endignore