if (log.isTraceEnabled()) { log.trace(this + (removed ? " removed ":" did NOT remove ") + r); }
if (trace) { log.trace(this + (removed ? " removed ":" did NOT remove ") + r); }
   public boolean remove(Receiver r)   {      boolean removed = router.remove(r);      if (log.isTraceEnabled()) { log.trace(this + (removed ? " removed ":" did NOT remove ") + r); }      return removed;   }