无法识别的字段“ssl required”(类org.keydrope.authorization.client.Configuration)

 AuthzClient authzClient = AuthzClient.create();

 AccessTokenResponse response = authzClient.obtainAccessToken(userlogin.getUser(), userlogin.getPassword());

尝试创建AuthzClient时出错:无法识别的字段“ssl required”

我的keydeap.json文件:

 {
   "realm": "SomeRealm",
   "auth-server-url": "https://keycloak.some.online/auth",
   "ssl-required": "none",
   "resource": "account",
   "credentials": {
   "secret": "some2355bdca-b140-4bc6-a3ad-8c4ca22abc"
 },
   "use-resource-role-mappings": true,
   "confidential-port": 0
 }