Till now I haven't been in the situation where would have been need of this but I would consider this a common thing, too. I don't know if this is just a thing left out in the API or if there are reasons. Let's see what the dev's and Ronald say: Take a look at this post: http://www.jboss.org/index.html?module=bb&op=viewtopic&t=162690 It's a bit hard to find because the title is somehow misleading. It's about listing outgoing transititions and not about acitivities. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4262449#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...