docs: private Dictionary<String, Object> buildUserRegistryConfigProps() {
          Hashtable<String, Object> properties = new Hashtable<String, Object>();
          properties.put("config.id", QUICK_START_SECURITY_REGISTRY_ID);
          properties.put("id", QUICK_START_SECURITY_REGISTRY_ID);
          properties.put(UserRegistryService.REGISTRY_TYPE, QUICK_START_SECURITY_REGISTRY_TYPE);
          properties.put(CFG_KEY_USER, config.userName());
          properties.put("service.vendor", "IBM");
          return properties;
      }