This is a debatable chance, but the goal is to somehow make it possible for integrators to be less strict with this particular spec rule.
http://svn.apache.org/viewvc?view=revision&revision=982715 Basically, we opted not to strictly enforce this as the invocationContext.proceed() method throws Exception so it forces all interceptors to needlessly catch and convert that checked exception to a runtime exception to meet the spec requirements: @PostConstruct public void construct(InvocationContext context) { try { context.proceed(); } catch (Exception e) { throw new RuntimeException(e); } } The result is that if a callback exception is thrown by the bean, it will end up being wrapped and re-thrown N number of times. Not terrible, but it is a bit of bad API. Anyway, if anyone sees a better way to do this I'm open to solutions. I just went with simple and direct so it would be easily revertible and changeable if we wanted to do something different. -David