code: protected ModelAndView resolveErrorView(HttpServletRequest request,
  			HttpServletResponse response, HttpStatus status, Map<String, Object> model) {
  		for (ErrorViewResolver resolver : this.errorViewResolvers) {
  			ModelAndView modelAndView = resolver.resolveErrorView(request, status, model);
  			if (modelAndView != null) {
  				return modelAndView;
  			}
  		}
  		return null;
  	}
docs: Resolve any specific error views. By default this method delegates to
  {@link ErrorViewResolver ErrorViewResolvers}.
  @param request the request
  @param response the response
  @param status the HTTP status
  @param model the suggested model
  @return a specific {@link ModelAndView} or {@code null} if the default should be
  used
  @since 1.4.0