Bernd, your proposal to set the context classloader around all the user code places is ok. it would be great if you could do that. i'll review and back you up in case that turns out to be necessary. but the only part i didn't get yet was the loading classes from the dedicated ear files. if i understand correct, it is an optional addition to this context classloader fix. let's discuss that separately. in the meantime, you can go ahead and contribute this functionality of setting the context classloader. what kind of tests for this did you have in mind ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4179306#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...