OK, I knew technically is not a leakage by definition, but in practice, in our tests, everything is pegged because of this. These proxies are alive during the whole cycle of the test, and released at the end. We have seen OME sometimes also. Also... Are you sure MBeanProxyExt would avoid a redeployment leakage? The Class created will have a reference back to the fake classLoader, what will have a reference to the parent classLoader, what would hang the classLoader anyways. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961000#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...