Start of adding copyable collections. Starting with Lists.

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

@@ -216,6 +216,9 @@ public class LISTS
 #endif
 		@Override
 		public int size() { return 1; }
+		
+		@Override
+		public SingletonList KEY_GENERIC_TYPE copy() { return new SingletonListBRACES(element); }
 	}
 	
 	private static class SynchronizedArrayList KEY_GENERIC_TYPE extends SynchronizedList KEY_GENERIC_TYPE implements IARRAY KEY_GENERIC_TYPE
@@ -372,6 +375,9 @@ public class LISTS
 		
 		@Override
 		public void size(int size) { synchronized(mutex) { l.size(size); } }
+		
+		@Override
+		public LIST KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 	}
 	
 	private static class UnmodifiableRandomList KEY_GENERIC_TYPE extends UnmodifiableList KEY_GENERIC_TYPE implements RandomAccess 
@@ -481,6 +487,9 @@ public class LISTS
 		
 		@Override
 		public void size(int size) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public LIST KEY_GENERIC_TYPE copy() { throw new UnsupportedOperationException(); }
 	}
 	
 	private static class EmptyList KEY_GENERIC_TYPE extends COLLECTIONS.EmptyCollection KEY_GENERIC_TYPE implements LIST KEY_GENERIC_TYPE
@@ -563,5 +572,8 @@ public class LISTS
 		
 		@Override
 		public void size(int size) { throw new UnsupportedOperationException(); }
+		
+		@Override
+		public EmptyList KEY_GENERIC_TYPE copy() { return this; }
 	}
 }