I have some code that sends a message (pub/sub) to an MDB, and then uses a TemporaryTopic to try to get a response. The MDB gets the request and publishes a response within a second or so, but it never gets to the client. Any suggestions would be great. Here's my code:

InitialContext ctx = new InitialContext(JNDI_PROPERTIES);
ConnectionFactory cf1 = (ConnectionFactory)ctx.lookup("ConnectionFactory");
Topic pTopic = (Topic)ctx.lookup(TOPIC_NAME);
Connection con1 = cf1.createConnection();
Session pubSession1 = con1.createSession(false, Session.AUTO_ACKNOWLEDGE);
TemporaryTopic replyTopic1 = pubSession1.createTemporaryTopic();
Session subSession1 = con1.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageConsumer consumer1 = subSession1.createConsumer(replyTopic1);
con1.start();
MessageProducer producer1 = pubSession1.createProducer(pTopic);
MapMessage msg = pubSession1.createMapMessage();
for(Map.Entry<String, String> entry: message.entrySet()) {
 msg.setString(entry.getKey(), entry.getValue());
}
msg.setStringProperty(MessagingUtil.SERVICE_NAME, serviceName);
logger.info("replyTopic1: " + replyTopic1);
msg.setJMSReplyTo(replyTopic1);
producer1.send(msg);
Message reply = consumer1.receive(7500);
logger.info("response: " + reply);