Mixing CDI and EJB results in error at start

Question

we have mixed the usage of CDI and EJB in our application. At startup, we receive the error Caused by: org.jboss.weld.context.ContextNotActiveException: WELD-001303: No active contexts for scope type javax.enterprise.context.RequestScoped.

We don't understand where exactly the problem is, so here is just the overall structure of the code:

@Stateless
public class SomeFacade {
    @Inject
    private SomeService someService;
}

@Stateless
public class SomeService {
    @Inject
    private SomeDao someDao;
}

@Stateless
public class SomeDao {
    @Inject
    private EntityManager entityManager;
}

@ApplicationScoped
public class EntityManagerProducer {
   @Produces
   @ApplicationScoped
   public EntityManagerFactory createEntityManagerFactory() {
         EntityManagerFactory emf = Persistence.createEntityManagerFactory("one");
     return emf;
   }

   public void close(@Disposes EntityManagerFactory entityManagerFactory) {
       entityManagerFactory.close();
   }

   @Produces
   public EntityManager createEntityManager(EntityManagerFactory entityManagerFactory) {
      return entityManagerFactory.createEntityManager();
   }
}

Is there something we can change in general?

Answer 1

Ondrej, your answer was helpful but was not quite the solution in my case.

First, I somehow resolved the start-up issues, but received the same error when handling arriving messages / REST requests. The solution was to annotate the service class with @ActivateRequestContext. This enabled CDI injections in all classes that are used by the servive.