如题，具体报错信息如下:
Exception in thread "main" com.baidu.api.client.core.ClientInternalException: Server returned an error code: 9
at com.baidu.api.client.core.LoginConnection.readSecClearResponse(LoginConnection.java:80)
at com.baidu.seclogin_test.SecLoginProxy.preLogin(SecLoginProxy.java:85)
at com.baidu.seclogin_test.SecLoginTest.pre(SecLoginTest.java:119)
at com.baidu.seclogin_test.SecLoginTest.main(SecLoginTest.java:58)
有人遇到过吗？