Arquillian and @Asynchronous

I have just learnt that Arquillian does not support @Asynchronous calls. So if you have @Asynchronous EJBs, then they might run fine on JBoss 7 (provided it's full profile and not just web profile, as far as I know), but not when you deploy it via Arquillian. The problem is, the errors this will produce are as misleading as it gets. I got NoClassDefFoundError for example.

Original situation

The bean.

@Stateless
@Asynchronous
@Local(LibraryImporter.class)
public class CacheAwareLibraryImporter implements LibraryImporter {

// … omitted for brevity

   @Override
   @TransactionAttribute(TransactionAttributeType.REQUIRED)
   public Future importLibrary(File libraryFile) {
// code...
   }
}

The test.

@RunWith(Arquillian.class)
public class DefaultSongServiceMacOsIT {

   @EJB
   private LibraryService libraryService;

// … omitted for brevity

This doesn't work with Arquillian.

Workaround

Here's my workaround. You may want to look at the diff file instead. The new bean (in src/test/java).

@Stateless
@Local({ LibraryImporter.class, SynchronousLibraryImporter.class })
public class SynchronousCacheAwareLibraryImporter extends
       CacheAwareLibraryImporter implements SynchronousLibraryImporter {

   @Override
   @TransactionAttribute(TransactionAttributeType.REQUIRED)
   public Future importLibrary(File libraryFile) {
       return super.importLibrary(libraryFile);
   }

}

The new interface (in src/test/java).

public interface SynchronousLibraryImporter extends LibraryImporter {

}

The test.

@RunWith(Arquillian.class)
public class DefaultSongServiceMacOsIT {

   @EJB
   private SynchronousLibraryService libraryService;

// … omitted for brevity

Nice...-ty. This is a known issue and they haven't done much about it so far.