createSessionFactory.java

    private static SessionFactory factory;
    private static ServiceRegistry serviceRegistry;

    public static SessionFactory createSessionFactory() {
        Configuration configuration =
                new Configuration()
                        .configure()
                        .addAnnotatedClass(Employee.class);

        serviceRegistry = new ServiceRegistryBuilder().applySettings(
                configuration.getProperties()).buildServiceRegistry();
        factory = configuration.buildSessionFactory(serviceRegistry);
        return factory;
    }