it's definitely a leak in the management code. when the server is stopped, all the resources registered in JMX were not unregistered. Clebert noticed that in the failover tests because they start/stop the server many times and registered many resources (e.g. one resource for each consumer queue) while never unregistering any. I'll fix the code so that the resources are properly unregistered when the server is stopped. I'll also reenable JMX in the failover tests View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4197550#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...