Hi, I'm using latest build from wildfly upstream/master. Would like to know if there is an issue on how Undertow recognize that a response is already commited or not. My code is setting a header and sending an error like that response.setHeader(REQUIRES_AUTHENTICATION_HEADER_NAME, AUTHENTICATION_SCHEME_NAME); response.sendError(HttpServletResponse.SC_UNAUTHORIZED); and isCommited is always returning "false" after that. To change this behavior I have to force a flush, so isCommited returns true. Both WildFly 8.1.0.Final and EAP behave differently and isCommited returns "true" without requiring a manual flush. Is this an issue ? Regards. Pedro Igor _______________________________________________ wildfly-dev mailing list wildfly-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/wildfly-dev