if (startEntityStack.contains(old.name))
if (!"".equals(old.name))
  private void popInput()  {    Input old = (Input) inputStack.removeLast();    if (startEntityStack.contains(old.name))      endEntityStack.addFirst(old.name);    input = (Input) inputStack.getLast();    //System.out.print("\n(-input:"+input.systemId+")");     //System.out.println("popInput "+old.name);  }