code: public void deleteSet(SIMessageHandle[] msgHandles, SITransaction transaction) 
    
    throws SIMPMessageNotLockedException, SISessionUnavailableException, SIConnectionLostException, SIIncorrectCallException, SIResourceException, SIErrorException
    {
      if (CoreSPIBifurcatedConsumerSession.tc.isEntryEnabled()) 
        SibTr.entry(CoreSPIBifurcatedConsumerSession.tc, "deleteSet",
          new Object[]{this, SIMPUtils.messageHandleArrayToString(msgHandles), transaction});
      
      // Check that we aren't closed
      checkNotClosed();
      
      _localConsumerPoint.processMsgSet(msgHandles, (TransactionCommon)transaction, this, false, true, false, true);
  
      if (CoreSPIBifurcatedConsumerSession.tc.isEntryEnabled()) 
        SibTr.exit(CoreSPIBifurcatedConsumerSession.tc, "deleteSet");    
    }
docs: /* (non-Javadoc)
  @see com.ibm.wsspi.sib.core.BifurcatedConsumerSession#deleteSet(long[], com.ibm.wsspi.sib.core.SITransaction)