alejandro, your point is correct. when sharing a single instance, context sensitive expressions cannot be used as they were. i see two options: 1) not doing any expression resolution in the injections. only make it possible to inject the static string "${actor.sauce.preference}" in a member field. and then make expression resolution available to the delegation classes through an api method invocation. 2) create a property to specify whether a delegation is stateless or not. i'm leaning towards 1) because that is a performant default which users cannot get into trouble with. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4211720#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...