env[i].put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
env[i].put(Context.PROVIDER_URL, "ldap://10.100.100.11:389/dc=mtu,dc=loc");
env[i].put(Context.SECURITY_PRINCIPAL, "cn=peter6636,ou=UkrService,dc=mtu,dc=loc");
                env[i].put(Context.SECURITY_CREDENTIALS, "xxxx");

javax.naming.AuthenticationException: [LDAP: error code  49  -  80090308 : LdapErr: DSID-0C09030B, comment: AcceptSecurityContext error, data  525 , v893

 This  error is caused by the wrong setting of
   java.naming.security.principal.Расшифровка:

javax.naming.AuthenticationException: 
   [LDAP: error code  49  -  80090308 : LdapErr: DSID-0C09030B, comment: 
                                             AcceptSecurityContext error, data  525 , v893 ]
A:  This  error is caused by the wrong setting of
   java.naming.security.principal.

   A full DN must be used here, something like:

   CN=FName LName,OU=OrgUnit_the_user_stored_in,DC=Domain_name,DC=Domain_suffix