code: @GetMapping("/openid/*")
      protected ModelAndView handleRequestInternal(final HttpServletRequest request,
                                                   final HttpServletResponse response) {
          return new ModelAndView("openIdProviderView",
              CollectionUtils.wrap("openid_server", casProperties.getServer().getPrefix()));
      }
docs: Handle request internal model and view.
  
  @param request  the request
  @param response the response
  @return the model and view