docs: @RequestMapping(value = "api/servergroup", method = RequestMethod.POST)
      public
      @ResponseBody
      ServerGroup createServerGroup(Model model,
                                    @RequestParam(value = "name") String name,
                                    @RequestParam(value = "profileId", required = false) Integer profileId,
                                    @RequestParam(value = "profileIdentifier", required = false) String profileIdentifier) throws Exception {
          if (profileId == null && profileIdentifier == null) {
              throw new Exception("profileId required");
          }
          if (profileId == null) {
              profileId = ProfileService.getInstance().getIdFromName(profileIdentifier);
          }
          int groupId = ServerRedirectService.getInstance().addServerGroup(name, profileId);
          return ServerRedirectService.getInstance().getServerGroup(groupId, profileId);
      }