TestObjectDefaultCache obj = new TestObjectDefaultCache();
PersistenceBroker broker = PersistenceBrokerFactory.defaultPersistenceBroker();
try
{
broker.beginTransaction();
broker.store(obj);
broker.commitTransaction();
Identity oid = new Identity(obj, broker);
obj = (TestObjectDefaultCache) broker.serviceObjectCache().lookup(oid);
assertNotNull(obj);