Hi,
I'm currently looking at a corner case when an UnavailableException is
thrown. Mainly, the Servlet is doing:
> public void service(HttpServletRequest req, HttpServletResponse resp)
> throws ServletException, IOException {
>
> PrintWriter out = resp.getWriter();
> resp.setContentType("text/html");
>
> out.println(" <HTML> ");
> out.flush();
> throw (new UnavailableException("Unavailable"));
The UnavailableException is permanent, so the Servlet.destroy() should
be called(SRV.2.3.3.2). But that's not the case since the response has
already been commited, so a java.lang.IllegalStateException will be
thrown from StandardWrapperValve:
> 242 } else if (available == Long.MAX_VALUE) {
> 243
response.sendError(HttpServletResponse.SC_NOT_FOUND,
> 244
sm.getString("standardWrapper.notFound",
> 245 wrapper.getName()));
> 246 }
> java.lang.IllegalStateException: Cannot call sendError() after the
response has been committed
I think we should avoid calling sendError is we know the response has
been commited. Something like:
if (!response.isAppCommited()) {
....
}
What people thinks?
-- Jeanfrancois
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