pm.close();
//check that the long no longer exist
pm = new PersistenceManager(driver, database, login, password);
List<StringToLong>res1 = pm.getObjects(StringToLong.class, new All());
assertEquals(1,res1.size());
StringToLong obj1 = res1.get(0);
assertNull(obj1.getName());
//save a long
obj1.setName(1);
pm.saveObject(obj1);
pm.close();
// change long to string
pm = new PersistenceManager(driver, database, login, password);