docs: @RequestMapping(value = "/versionlist", method = RequestMethod.GET)
      @ResponseBody
      public JsonObjectBase getVersionList(@Valid VersionListForm versionListForm) {
  
          LOG.info(versionListForm.toString());
  
          List<String> versionList =
                  configMgr.getVersionListByAppEnv(versionListForm.getAppId(), versionListForm.getEnvId());
  
          return buildListSuccess(versionList, versionList.size());
      }