On WildFly 10.0.0.Final, I have a simple SLSB firing a CDI event:

@Stateless
@Remote(CDITestRemote.class)
@Local(CDITestLocal.class)
public class CDITestBean implements CDITestRemote, CDITestLocal {

   @Inject
   private Event<IVolumeEvent> events;

   @Override
   public String insert(final String value) {
     final IVolumeEvent event = new VolumeEvent();
     events.fire(event);

     return String.format("value: %s", value);
   }
}

and an @ApplicationScoped "CDI event observer" for the type of events fired by the EJB:

@ApplicationScoped
public class VolumeEventObserver {

   private Logger logger = LoggerFactory.getLogger(VolumeEventObserver.class);

   @Inject
   private TransactionHandler txHandler;

   public void inProgress(
       @Observes(during = TransactionPhase.IN_PROGRESS) final IVolumeEvent event) {
     logger.info("@Observes progress() {}", String.valueOf(txHandler.getUUID()));
   }

   public void afterSuccess(
       @Observes(during = TransactionPhase.AFTER_SUCCESS) final IVolumeEvent event) {
     logger.info("@Observes success() {}", String.valueOf(txHandler.getUUID()));
   }

   public void afterFailure(
       @Observes(during = TransactionPhase.AFTER_FAILURE) final IVolumeEvent event) {
     logger.info("@Observes failure() {}", String.valueOf(txHandler.getUUID()));
   }
}

TransactionHandler is a @RequestScoped CDI bean:

@RequestScoped

public class TransactionHandler {

    private UUID uuid = UUID.randomUUID();

    public UUID getUUID() {

        return uuid;

    }

}

If I now make a remote EJB call to CDITestRemote, I get different instances of TransactionHandler during the same request (same thread, same transaction):

18:09:54,372 INFO  [VolumeEventObserver] (default task-19) @Observes progress() 193aa274-8f5e-462a-89ca-9b827b4ed9ba

18:09:54,388 INFO  [VolumeEventObserver] (default task-19) @Observes success() beb1a62b-ad74-4477-888a-880dd6db3ce1

The WELD reference however states:

The request and application scopes are also active:

• during invocations of EJB remote methods,

I tried the same in TomEE and there it works as expected:

@Observes progress() d583b6f8-02fc-45f7-80ca-6b0023cf7ac7

@Observes success() d583b6f8-02fc-45f7-80ca-6b0023cf7ac7

Could this be a WELD bug?