"tom.baeyens(a)jboss.com" wrote : In the first approach, we could just add Task to the pvm package. Process languages should have the ability to ignore that member field. I like this approach best. If users don't want to use tasks, they can just ignore the property with no harmful effects. This is better than going back to a modular system in my opinion, and for users who do want tasks in their process language, it will be far easier on them. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4031989#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...