docs: public void alarm (Object alarmContext)
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(this, tc, "alarm", alarmContext);
  
      synchronized(this) {
        _alarm = null;
      }
  
      try {
        completeBatch(true);
      } catch(SIException e) {
        //No FFDC code needed
        SibTr.exception(this, tc, e);
        //can't do anything else here
      }
  
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(this, tc, "alarm");
    }