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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