}
	public void addParents(JavaClass c) {		if (!parentsAdded.add(c)) return;		try {		addParent(c.getSuperClass(),c);		for(JavaClass i : c.getInterfaces())			addParent(i,c);		} catch (ClassNotFoundException e) {			if (DEBUG_HIERARCHY)  {				System.out.println("Error adding parent(s) of " + c.getClassName());				e.printStackTrace(System.out);				}			}		}