The current code in AnnotationCreator and AnnotationProxy reuse the classloader that defines an annotation to create the new proxy in. This is bad when the annotation exists in a classloader that stays around for a long time, like say one that would hold jboss annotation classes :) Instead we should be passing these routines a short-lived loader to define the proxies in. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4231169#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...