Help on transacted session (urgent)

Question

Hi all,
While creating a transacted Session using separate application for sender and receiver, should both the sender and receiver be in transacted mode?.
Our session creation looks something like this.
QueueSession session = connection.createQueueSession(true, Session.AUTO_ACKNOWLEDGE );
With Queue destinations, is it possible to have two receivers and one sender in a trancated session.

Answer 1

if i create Sender application in transacted mode then both the receiver's receives the message.
If i create Sender in Non Transacted mode and Receiver application in transacted & Session.AUTO_ACKNOWLEDGE,
one receiver receive's around 2 messages (size 26kb) and the other hangs.
I think I am not commiting at the right place.
excerpt from the receiver:
QueueConnectionFactory factory = (QueueConnectionFactory) Context.lookup("QueueConnectionFactory");
QueueConnection connection = factory.createQueueConnection();
connection.start();
session = connection.createQueueSession(true,Session.AUTO_ACKNOWLEDGE );
               queue = (Queue)jndiContext.lookup(queueName);
QueueReceiver receiver = session.createReceiver(queue);
               LoggerFactory.getLogger().logDebug("Application==============Before for") ;
               receiver.setMessageListener(new SimpleReceiver());
     System.err.println("Message listener has been set");
catch (Exception exception)
               System.err.println("Fatal error: " + exception + "\nExiting.....");
exception.printStackTrace();
LoggerFactory.getLogger().logDebug(JmsAdminErrs.getSqlErr(exception.getMessage()));
               System.exit(-1);
public void onMessage(Message message)
          try
               if (ackMode == Session.CLIENT_ACKNOWLEDGE)
                    System.out.println("MEssage Recived by onMessage: " + message.getStringProperty("test") + ++i) ;
                    message.acknowledge();
               System.out.println("MEssage onMessage: " + message.getStringProperty("test") + ++i) ;
               //session.commit();
          catch (JMSException exception)
               System.err.println("Warning in ack " + exception);
}