destination.remove(id);
if (log.isTraceEnabled()) log.trace("Attempting to remove receiver"); Receiver removed = destination.remove(id); if (log.isTraceEnabled()) log.trace("Removed receiver:" + removed);
   void setStarted(boolean s)   {           if (s)      {         destination.add(this);      }      else      {         destination.remove(id);      }   }