code: @RequestMapping(value = "api/group", method = RequestMethod.POST)
      public
      @ResponseBody
      HashMap<String, Object> createNewGroup(Model model,
                                             @RequestParam(value = "name", required = true) String groupName) {
          logger.info("groupname={}", groupName);
          pathOverrideService.addGroup(groupName);
          return Utils.getJQGridJSON(pathOverrideService.findAllGroups(), "groups");
      }
docs: Create a new group
  
  @param model
  @param groupName
  @return