jBPM 3 or 4? In 3 deployment do not have a classloader. Processinstances when actualy running in a thread (so not when they are just in the db) have a classloader. That behaviour is configurable to some extend. But you should be able to use e.g. the war classloader when jBPM is running embedded. For 4 I have no idea (yet) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4243328#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...