Topic topic = (Topic) context.lookup(TEST_TOPIC);
MessageConsumer subscriber1 = session1.createConsumer(topic, null, true);
MessageProducer sender1 = session1.createProducer(topic);
// Session 2
Session session2 = topicConnection2.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageConsumer subscriber2 = session2.createConsumer(topic, null, true);
MessageProducer sender2 = session2.createProducer(topic);
drainMessagesForTopic(subscriber1);
drainMessagesForTopic(subscriber2);