code: public SIMPItemStream getItemStream()
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "getItemStream");
  
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.exit(tc, "getItemStream", containerItemStream);
  
      return (SIMPItemStream) containerItemStream;
    }
docs: Return the SIMPItemStream associated with this AOH.  This method is needed
  for proper cleanup of remote durable subscriptions since the usual
  item stream owned by the DestinationHandler is not used.
  
  @return The SIMPItemStream passed to this AOH during instantiation.