code: @RequestMapping(value = "group/{groupId}", method = RequestMethod.GET)
      public String editGroup(Model model, @PathVariable int groupId) throws Exception {
          model.addAttribute("groupName",
                  pathOverrideService.getGroupNameFromId(groupId));
          model.addAttribute("groupId", groupId);
          ObjectMapper mapper = new ObjectMapper();
          String json = mapper.writeValueAsString(pluginManager.getMethodsNotInGroup(groupId));
          model.addAttribute("methodsNotInGroup",
                  json);
  
          return "editGroup";
      }
docs: Redirect to a edit group page
  
  @param model
  @param groupId
  @return
  @throws Exception