docs: public long getNumberOfCompletedRequests()
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "getNumberOfCompletedRequests"); 
      long completedRequests = 
        getNumberOfRequestsReceived() - getNumberOfCurrentRequests();
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.exit(tc, "getNumberOfCompletedRequests", new Long(completedRequests));
      return completedRequests; 
    }