del.getReference().decrementChannelCount();
del.getReference().releaseMemoryReference();
      public void afterCommit(boolean onePhase)      {         if (trace) { log.trace(this + " removing " + del + " after commit"); }                  del.getReference().decrementChannelCount();                  try         {            acknowledgeInMemory(del);         }         catch (Throwable t)         {            //FIXME Sort out this exception handling!!!            log.error("Failed to ack message", t);         }                        } 