[Resteasy-developers] ExceptionMapper + exceptions from an EJB invocation

[Adam J. <Ada...@ge...>]

Here¹s the situation.

I¹ve got a resource implemented as a Stateless EJB (exposed via a Seam
application but that¹s neither here nor there).

@Stateless
@Local(SpecimensClient.class)
@Name("specimens")
@Path("/rest/specimens")
public class SpecimensBean implements SpecimensClient, Serializable
{
    public ExtSpecimen getSpecimen(Long id)
    {
        try
        {
            Specimen specimen = (Specimen)
                    em.createQuery("XYZ").getSingleResult();

            ...    
            return extSpecimen;
        }
        catch (NoResultException e)
        {
            throw new
WebApplicationException(HttpURLConnection.HTTP_NOT_FOUND);
        }
    }
}

Now accessing that resource with an invalid id is resulting in the
WebApplicationException getting thrown.  However instead of it propagating
up as a InvocationTargetException with the WebApplicationException as it¹s
cause, the InvocationTargetException is wrapping an EJBException which in
turn is wrapping the WebApplicationException.

What¹s the opinion on the best way to handle this, short of having to
implement a @Provider to do the unwrapping of the EJBException myself (which
does seem to work).


Kind Regards,
Adam