JCIFS is in maintenance mode and does not support NTML2/3. Action items:
1) Create new security authentication called SecurityAuthenticationNTLM2
2) Propose using SMBj which support 2 and partial 3

Proposed code for new security authentication:

import com.hierynomus.smbj.SMBClient;
import com.hierynomus.smbj.auth.AuthenticationContext;
import com.hierynomus.smbj.connection.Connection;
import com.hierynomus.smbj.session.Session;


public class SecurityAuthenticationNTLM2 implements SecurityAuthentication {

@Override
public boolean validateUser(String username, String password,
Hashtable params) throws Exception {


SMBClient client = new SMBClient();

try (
Connection connection = client.connect((String) params.get("domain_controller"))) {
AuthenticationContext ac = new AuthenticationContext(username, password.toCharArray(), (String) params.get("domain"));
Session session = connection.authenticate(ac);

session.getConnection();
session.close();
return true;
} catch(Exception se ) {
// NETWORK PROBLEMS?
throw new Exception (se.getMessage());
}