Yes, you are 'misinterpreting' the docs. You can pass in maps, collections etc, but each value can only be a simple type (String, Integer etc, but no map, list, collection) You *can* pass in arbitrary complex XML structures that will be converted to Document if you use that as the type in your class View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4233756#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...