got this thing working - looks like a bug in the JBoss MDB deployer code... basically the deployer was not paying any attention to the destination-jndi-name that I provided for the EJB in the jboss.xml file. Instead, it would see that I'm deploying SQMessageHandler, realize that there was no queue having that name, and create it. THIS (queue/SQMessageHandler) is the queue that the MDB was monitoring for messages - not the one I specified. So - posting messages to queue/SQMessageHandler works. I ended up changing the EJB name to OrderQueue and that works (except that I can't post to jms/OrderQueue - it has to be queue/OrderQueue). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149220#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...