public class MainClass {
    private static AuthService authService;

    public static void main(String[] args) {
        try (HibernateUtils hibernateUtils = new HibernateUtils()) {
            init(hibernateUtils);
            UserInterface userInterface = new SwingInterface(authService);
            userInterface.run();
        } finally {
        }
    }

    private static void init(HibernateUtils hibernateUtils) {
        AuthDAO authDAO = new HibernateAuthDAOImpl(hibernateUtils);
        authService = new AuthServiceImpl(authDAO);
    }
}

public class HibernateUtils implements AutoCloseable {
    private SessionFactory sessionFactory;
    private Session session;

    public HibernateUtils() {

        Configuration configuration = new Configuration().configure();
        StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().
                applySettings(configuration.getProperties());
        sessionFactory = configuration.buildSessionFactory(builder.build());
    }

    public Session getSession() {
        if(session == null) {
            session = sessionFactory.openSession();
        }
        return session;
    }

    @Override
    public void close() {
         sessionFactory.close();
    }
}

public class SwingInterface implements UserInterface {
    private AuthService authService;

    public SwingInterface(AuthService authService) {
        this.authService = authService;
    }

    @Override
    public void run() {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new AuthWindow(authService);
            }
        });
    }
}

Exception in thread "AWT-EventQueue-0" org.hibernate.service.UnknownServiceException: Unknown service requested [org.hibernate.engine.jdbc.connections.spi.ConnectionProvider]
    at [...].db.utils.HibernateUtils.getSession(HibernateUtils.java:24)

try (HibernateUtils hibernateUtils = new HibernateUtils()) {