"macross27" wrote : Thanks for the tip. However I can't do anything on the side of the application which uses the odd correlation id or the selector as it is closed source. So I have to deal with that in JBoss messaging. Any ideas to that? | The selector is invalid, you need to fix your application - this is not a JBM issue. anonymous wrote : | I guess that the correlation id is a string is part of Sun's JMS spec? Yes, http://java.sun.com/j2ee/sdk_1.2.1/techdocs/api/javax/jms/Message.html#ge... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4048072#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...