notify();
this.notify();
      public synchronized void subscriptionChanged(Subscription s)      {          Enumeration changedList =            ((IncrementalSubscription)s).getChangedList();          if (changedList.hasMoreElements())          {            changedQra = (QueryResultAdapter)changedList.nextElement();            if (allClustersResponded(changedQra)) {              //System.out.println("All clusters checked in");              notify();            } else {              //System.out.println("Still waiting for some clusters");            }          }      }