code: public void reconstituteStreamSet(StreamSet newStreamSet)
  
    throws SIRollbackException, SIConnectionLostException, SIResourceException, SIErrorException
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "reconstituteStreamSet", streamSet);
  
      //remove the old one
      if(streamSet != null) streamSet.remove();
      //replace it with a new one
      streamSet = newStreamSet;
  
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.exit(tc, "reconstituteStreamSet");
    }
docs: Set the StreamSet to be the given one, which will probably have
  been restored from the the message store
  
  @param newStreamSet
  @throws SIStoreException