Connecting Hibernate to Oracle Database about jooby HOT 6 CLOSED

public class HibernateUtil {

    private static SessionFactory sessionFactory;

    public static SessionFactory getSessionFactory() {
        if (sessionFactory == null) {
            StandardServiceRegistry standardRegistry = new StandardServiceRegistryBuilder()
                    .applySettings(getConfigurationProperties())
                    .build();
            try {
                Metadata metadata = new MetadataSources(standardRegistry)
                        .addAnnotatedClass(Test.class)
                        .buildMetadata();

                sessionFactory = metadata.getSessionFactoryBuilder().build();
            } catch (Exception e) {
                System.err.println("Error create SessionFactory: " + e);
                if (standardRegistry != null) {
                    StandardServiceRegistryBuilder.destroy(standardRegistry);
                }
            }
        }
        return sessionFactory;
    }

    private static Properties getConfigurationProperties() {
        Properties properties = new Properties();
        properties.put(Environment.DRIVER, "oracle.jdbc.driver.OracleDriver");
        properties.put(Environment.URL, "jdbc:oracle:thin:@domain.com:1521:PHX");
        properties.put(Environment.USER, "USER");
        properties.put(Environment.PASS, "PASSWORD");
        properties.put(Environment.DIALECT, "org.hibernate.dialect.OracleDialect");
        properties.put(Environment.SHOW_SQL, "true");
        properties.put(Environment.FORMAT_SQL, "true");
        properties.put(Environment.HBM2DDL_AUTO, "validate");

        return properties;
    }

    public static void shutdown() {
        if (sessionFactory != null) {
            sessionFactory.close();
        }
    }
}