If you have read the docs, then you should be aware that jBPM uses Hibernate to handle DB, hence the jars needed. Regards. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3985519#3985519 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3985519