List<SimpleObject>dependents = pm.getObjects(SimpleObject.class, new All());
assertEquals(0,dependents.size());
pm.close();
// change long to object
pm = new PersistenceManager(driver, database, login, password);
pm.changeName(ObjectToLong.class, OriginalObject.class);
pm.close();
pm = new PersistenceManager(driver, database, login, password);
pm.updateSchema(OriginalObject.class);
pm.close();
pm = new PersistenceManager(driver, database, login, password);