code: private int checkLinkAbleToExceptionMessage()
                      throws SIException
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(tc, "checkLinkAbleToExceptionMessage");
  
          int blockingReason = DestinationHandler.OUTPUT_HANDLER_NOT_FOUND;
  
          blockingReason = checkCanExceptionMessage(_destination);
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(tc, "checkLinkAbleToExceptionMessage", Integer.valueOf(blockingReason));
  
          return blockingReason;
      }
docs: See if a link's exception destination can handle any more messages.
  
  @return reason code signifying whether the destination can accept messages or the reason for
  not being able to do so.