Just had the inspiration after posting the previous message. The easy/clean way is extending the JobSession, adding the method with the new functionality and add a constructor to the new class using as a parameter the Session (Hibernate session). The session can be retrieved from the jbpmContext. I was missing this part, and all my problems were originally produced because I didn't know how to retrieve the Session. Regards. Jose. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4227280#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...