{
PersistenceManager pm = new PersistenceManager(driver, database, login, password);
// drop all tables
pm.dropTable(Object.class);
ListContainingObject a = new ListContainingObject();
a.addStr("1");
a.addStr("2");
a.addStr("3");
a.addStr("4");
pm.saveObject(a);
ListContainingObject b = new ListContainingObject();
b.addStr("5");
b.addStr("6");
b.addStr("7");
b.addStr("8");
pm.saveObject(b);
pm.close();
pm = new PersistenceManager(driver, database, login, password);