log.warning(L.l("FormLogin: session has timed out for session '{0}'",
req.getSession().getId()));
RequestDispatcher disp = request.getRequestDispatcher("/");
if (disp != null) {
disp.forward(request, response);
return;
}
else {
throw new ServletException(L.l("Session has timed out for form authentication, no forwarding URI is available. Either the login form must specify j_uri or the session must have a saved URI."));
}