code: public void scheduleUpdate(UniqueKeyGenerator generator)
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(tc, "scheduleUpdate", "GeneratorName="+generator.getName());
  
          synchronized (_asyncQ)
          {
              _asyncQ.add(generator);
              _asyncQ.notify();
          }
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(tc, "scheduleUpdate");
      }
docs: Request an asynchronous update of the persistent state
  
  @param generator to be updated