You are probably closing your client application without cleanly closing its JMS connections, or perhaps you are killing your client app. The server then tries to send a message to your client, only to find it is no longer there, hence the exception. The server will then cleanup the server side resources associated with the badly behaved client. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4052054#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...