Hi,
in the manual (chapter 22: Asynchronicity and messaging) is reported the following interface:

@Local
public interface PaymentHandler
{
  @Asynchronous
  public void processPayment(Payment payment);
}

But @Asynchronous is not a @Inherited annotation. So it doesn't work if only annotating the method into the interface. The implementation must be annotated.

I open a JIRA to improve the manual.
Nic