I experience exactly the same thing. I guess that's ok on my development box, but on my production box, I kill and restart JBoss, unless someone can suggest a way to avoid this leak. Is there something that is preventing the classloader from being GC'ed? Or is this a problem with the JVM? Because it should be perfectly possible to GC a classloader. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3967676#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...