AsyncContext.complete and AsyncContext.dispatch have no effect while invoking AsyncListener.onError(AsyncEvent) --------------------------------------------------------------------------------------------------------------- Key: WFLY-846 URL: https://issues.jboss.org/browse/WFLY-846 Project: WildFly Issue Type: Bug Components: Web (Undertow) Reporter: Martin Kouba Assignee: Remy Maucherat Priority: Major Fix For: JBoss AS7 7.2.0.Final The Servlet 3.0 spec "2.3.3.3 Asynchronous processing" states: "Any errors or exceptions that may occur during the execution of the dispatch methods MUST be caught and handled by the container as follows: ... ii. If none of the listeners called AsyncContext.complete or any of the AsyncContext.dispatch methods, then perform an error dispatch with a status code equal to HttpServletResponse.SC_INTERNAL_SERVER_ERROR and make the Throwable available as the value of the RequestDispatcher.ERROR_EXCEPTION request attribute. ... " However calling complete() or dispatch() method has no effect and container always returns SC_INTERNAL_SERVER_ERROR. See CDI TCK 1.1 test: https://github.com/jboss/cdi-tck/blob/a8228d9dbe6191488186cf6d20078632c0f...