public void testMessageListenerTransactionalAck() throws Exception
{
Connection conn = cf.createConnection();
Session sessSend = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageProducer prod = sessSend.createProducer(queue);
prod.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
TextMessage tm1 = sessSend.createTextMessage("a");
TextMessage tm2 = sessSend.createTextMessage("b");
TextMessage tm3 = sessSend.createTextMessage("c");
prod.send(tm1);