code: private void notifyMessageReceived(boolean lastInBatch)
     {
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(this, tc, "notifyMessageReceived", lastInBatch);
  
        if (lastInBatch)
        {
           batchesReceived++;
           batchesReady++;
        }
  
        messagesReceived++;
  
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(this, tc, "notifyMessageReceived");
     }
docs: Notification that a full message has been received. Counters should be updated.
  
  @param lastInBatch