处理AJAXified组件的JSF 2.0异常的正确方法是什么？

I have set up web.xml so that anything that's java.lang.Throwable (i.e. any uncaught exceptions or errors) will forward to an error page. However, for AJAXified components, exceptions dont get routed to the error page via this mechanism.I have set up web.xml so that anything that's j