docs: boolean _close() throws SIResourceException
    {
      if (tc.isEntryEnabled()) SibTr.entry(tc, "_close");
      
      boolean closedNow = false;
      
      // Indicate that this connection is closed.
      synchronized (this)
      {
        if (!_closed)
          closedNow = true;
          
        _closed = true;    
      }
  
      // Ensure that we inform the parent consumer that this
      // bifurcated consumer is closed, so that any messages read
      // by this consumer can be unlocked.
      if (closedNow) {
        try
        {
          _consumerSession.removeBifurcatedConsumer(this);
        }
        catch (SISessionDroppedException e)
        {
    //      RMQSessionDroppedException shouldn't occur so FFDC.
          FFDCFilter.processException(
            e,
            "com.ibm.ws.sib.processor.impl.mqproxy.MQLocalization.getCursor",
            "1:280:1.27",
            this);
    
          SibTr.exception(tc, e);
    
          SIResourceException newE =
            new SIResourceException(
              nls.getFormattedMessage(
                "CONSUMER_CLOSED_ERROR_CWSIP0177",
                new Object[] { _localConsumerPoint.getConsumerManager().getDestination().getName(),
                               _localConsumerPoint.getConsumerManager().getMessageProcessor().getMessagingEngineName()},                
                null));
    
          if (tc.isEntryEnabled())
            SibTr.exit(tc, "getCursor", newE);
    
          throw newE;
        }
      }
  
      if (tc.isEntryEnabled()) SibTr.exit(tc, "_close", new Boolean(closedNow));
      
      return closedNow;   
    }