ExchangeRegistry exchangeRegistry, AMQProtocolSession protocolSession,
AMQMethodEvent<TxRollbackBody> evt) throws AMQException
{
try{
AMQChannel channel = protocolSession.getChannel(evt.getChannelId());
channel.rollback();
protocolSession.writeFrame(TxRollbackOkBody.createAMQFrame(evt.getChannelId()));
//Now resend all the unacknowledged messages back to the original subscribers.
//(Must be done after the TxnRollback-ok response).
channel.resend(protocolSession);
}catch(AMQException e){