Yes, the original thinking was to keep allowing simple interfaces to be used as the type for annotation overloads. But I had to fix some things in JBoss Retro, so the annotations recognized by the annotation helper must now implement org.jboss.lang.Annotation. If the code is woven from JDK 5 annotation types, the resulting interfaces will implement org.jboss.lang.Annotation. If people want to do this manually or use the old annotation compiler with jdk 1.4 they can still supply an interface, but the interface will need to implement org.jboss.lang.Annotation interface View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3958793#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...