private Injector injector;
@Before
public void setUp()
{
final PersistenceModule pm = createPersistenceModuleForTest();
injector = Guice.createInjector( pm );
//startup persistence
injector.getInstance( Key.get( PersistenceService.class, FirstPU.class ) ).start();
injector.getInstance( Key.get( PersistenceService.class, SecondPU.class ) ).start();