Seam needs to be able to look up a model.value to find the relevant validation annotation, @In doesn't do that. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4084239#4084239 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4084239