docs: public long getNumberOfMessagesReceived()
     {
       if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) 
         SibTr.entry(tc, "getNumberOfMessagesReceived");
       if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) 
         SibTr.exit(tc, "getNumberOfMessagesReceived", new Long(messagesReceived));
       
       return messagesReceived;
     }