transaction getting commited before existing the method

Question

I have below code,

@Service
public class MyHandlerService {

    @Inject
    private MyRepoService myRepoService;

    @Transactional(value = "manager1", propagation = Propagation.REQUIRES_NEW)
    public void handle(final String message) {
        myRepoService.save(message);
    }

}


@Service
@Transactional("manager1")
public class MyRepoService {
    Inject
    private final VehicleService vehicleService;

    private void save(String message) {
        MYVEHICLELIST.getEntries(message).forEach(vehicle -> {
            Vehicle vehicle = vehicleService.findById(vehicle.getId());
            if (table1ObjectEntity == null)
               vehicleService.save(vehicle);
            }
        });
    }

}

@Service
public class VehicleService {
    @Inject
    private final VehicleRepository repo;

    @Transactional(value = "manager1", readOnly = true)
    public Vehicle findById(final String id) {
        return repo.findById(id);
    }

    public void save(Vehicle obj) {
        repo.save(obj);
    }
}

I have two entries in MYVEHICLELIST,

1. The first one gets looped and it is saved in the proxy (not committed)
2. when the second one is looped, then upon hitting vehicleService.findById(vehicle.getId()) the first vehicle data in proxy gets committed and flushed to the database

I expect both vehicles to get persisted only when MyHandlerService.handle() method is returned.

TransactionManager used is com.atomikos.icatch.jta.UserTransactionManager