code: @Override
  	public boolean onActivityTimeout() throws Exception
      {
      	try
      	{
      		send(new PingQuery());
      		return false;
      	}
      	catch (Exception e)
      	{
      		log.warn("#"+id+" cannot send ping to server : "+e.toString());
      		return true;
      	}
      }
docs: /* (non-Javadoc)
  @see net.timewalker.ffmq4.utils.watchdog.ActiveObject#onActivityTimeout()