In 1.3 GA, there are 2 documented ways to pre-configure this value (please refer to first post). Errors are thrown when using jmx-console OR using Queue xml config. Since i can't upgrade to 1.4 (where it appears to be fixed), i am wondering if for 1.3, there is any 3rd way(programmatic ?) to set a 'maxSize' for a Queue to avoid unbounded Queues. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4096361#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...