System.out.println("RBS: open");
  public void open () {System.out.println("RBS: open");    synchronized (lock) {      checkDead("open");      checkOpened("open");      opened = true;      added = newAdds;      changed = newChanges;      removed = newRemoves;      newAdds = new HashSet();      newChanges = new HashSet();      newRemoves = new HashSet();      hasNewStuff = false;    }  }