public void nextChanges( Change currentChange, ArrayList<Change> proposedChanges, ArrayList<Change> curPath, ArrayList<ArrayList<Change>> ardalist ){
		curPath.add( currentChange );
		for( Change e : proposedChanges ){
			if( e.getChangeSource().equals( currentChange.getChangeTarget() ) ){
				if( !e.getChangeSource().equals( e.getChangeTarget() ) ){
					ArrayList<Change> curPathLocal = (ArrayList<Change>)curPath.clone();
					nextChanges( e, proposedChanges, curPathLocal, ardalist );
				}
			}
		}
		boolean add = true;
		for( ArrayList<Change> d : ardalist ){
			if( d.containsAll( curPath ) ){
				add = false;
			}
		}
		if( add ){
			ardalist.add( curPath );
		}
	}