protected ModelAndView disallowDuplicateFormSubmission(
HttpServletRequest request,
HttpServletResponse response) throws Exception {
BindException errors = new BindException(formBackingObject(request), getCommandName());
errors.reject("duplicateFormSubmission", null, "Duplicate form submission");
return showForm(request, response, errors);
}
protected ModelAndView handleInvalidSubmit(
HttpServletRequest request,