"epbernard" wrote : | - Getting intersections of annotated classes too: get all class with @Named and @Startup, could be useful too (not entirely sure but I can see a couple of use cases) | You can do intersections later on, since I don't see how could I make this more efficient, because I always need to go over all classes/annotations - e.g. for other non-Seam users. You can probably then create your own Element, implementing hash and equals, so that Set operations work as they should. "epbernard" wrote : | - Getting a class hierarchy: its often that you need to build a class hierarchy based on a given class, might be useful as a service? I don't understand what exactly you mean here? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171505#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...