Session s = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageProducer prod = s.createProducer(topic);
prod.setDeliveryMode(DeliveryMode.PERSISTENT);
s.createDurableSubscriber(topic, "monicabelucci");
ObjectName destObjectName =
new ObjectName("jboss.messaging.destination:service=Topic,name=Topic");
List subs = (List)ServerManagement.invoke(destObjectName, "listAllSubscriptions", null, null);