So I've run into an odd problem the last couple of days. I've been through my code and I've re-installed JBoss and Messaging several times to try and eliminate it. I can't find a solid cause. Here's what's happening: We have a non-durable consumer that is listening to a topic. When it receives a messages with a specific int property, it knows it's supposed to stop listening and shut itself down. It establishes it's connections at follows: | InitialContext initialContext=new InitialContext(); | | ConnectionFactory connectionFactory = (ConnectionFactory) initialContext.lookup("XAConnectionFactory"); | | Connection connection=connectionFactory.createConnection(); | | Session session=connection.createSession(false, Session.CLIENT_ACKNOWLEDGE); | | Destination destination=(Destination) initialContext.lookup("OurTopic"); | | Consumer consumer=consumer=session.createConsumer(destination, "selectorProp = 1"); | | consumer.setMessageListener(this); | | connection.start(); | Then for the onMessage method we have | public void onMessage(Message message) | { | try | { | | message.acknowledge(); | | Integer closeProp=message.getIntProperty("closeProp"); | | if (closeProp == -1) | { | try { connection.stop(); } catch (Exception e) {} | try { consumer.close(); } catch (Exception e) {} | try { session.close(); } catch (Exception e) {} | try { connection.close(); } catch (Exception e) {} | } | } | catch (JMSException e) | { | e.printStackTrace(System.err); | } | } | Now, here's the odd thing: It just hangs on the consumer.close() (in bold) call. This used to work. I'm not sure what's changed, I've gone back over it 50 times now and can't find anyhting I changed that would have broken it. I've found that if I close everything from outside the onMessage method from another thread (like a timer thread or something that just watches the state of the consumer) it works fine. It's just when I close it all down in onMessage. Is this frowned upon or should this work? Any thoughts on what might be causing it to lock? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3970442#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...