Hi Extensions that observe using @WithAnnotations are not notified with implementing classes for annotated interfaces. Not sure if this is intended - the javadoc seems pretty clear on that the following example should work. @Path("/service") public interface Service { @POST public void execute(); } public ServiceEndpoint implements Service { public void execute() { ... } } public class JaxrsExtension implements Extension { <X> void storeJaxrsResourceClasses(@Observes @WithAnnotations({Path.class, Provider.class}) ProcessAnnotatedType<X> pat) { AnnotatedType<X> type = pat.getAnnotatedType(); if (!type.getJavaClass().isInterface()) { // want to manage the ServiceEndpoint here } } } Cheers, -Kristoffer _______________________________________________ weld-dev mailing list weld-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/weld-dev