/*assertNotNull(derived.getClassMapping("org.reveng.Child") );
assertNotNull(derived.getClassMapping("org.reveng.Master") );*/
URL[] urls = new URL[] { outputdir.toURL() };
URLClassLoader ucl = new URLClassLoader(urls, Thread.currentThread().getContextClassLoader() );
Thread.currentThread().setContextClassLoader(ucl);
SessionFactory factory = derived.buildSessionFactory();
Session session = factory.openSession();
executeDDL(getGenDataSQL(), false);
session.createQuery("from Lineitem").list();
List list = session.createQuery("from Product").list();