Won't caching make expression evaluation in delegation properties unfeasible? <delegation class="org.example.Taco"> | <sauce>${actor.sauce.preference}</sauce> | </delegation> If the above is not a requirement (I have wished for it more than once, and not just me, see JBPM-1752) then we can have a single object per process definition. Otherwise we need a pool. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4211611#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...