java LDAPException未绑定的无效凭据

Question

我有一个ldap服务器，可以通过ldap Apache Directory Studio连接到该服务器。演播室中的设置包括：

Hostname: ldap.company.com
Port: 389
Encryption Method: No Encryption
Provider: Apache Directory LDAP Client API
Authentication Method: Simple Authentication
BindDn or user: domain\user
Bind password: password

代码中的设置相同：

    LDAPConnection connection = new LDAPConnection("ldap.company.com", 389, "domain\\user", "password");

但代码是：

LDAPException(resultCode=49 (invalid credentials), errorMessage='80090308: LdapErr: DSID-0C0903D9, comment: AcceptSecurityContext error, data 52e, v2580
  at com.unboundid.ldap.sdk.LDAPConnection.bind(LDAPConnection.java:2182)
  at com.unboundid.ldap.sdk.LDAPConnection.<init>(LDAPConnection.java:671)
  at com.unboundid.ldap.sdk.LDAPConnection.<init>(LDAPConnection.java:564)
  at ldapstest.LDAPSTest.getConnection(LDAPSTest.java:21)
  at ldapstest.LDAPSTest.main(LDAPSTest.java:46)

Unbounded中是否不支持域\用户名样式