Hi Laird,
This is a limitation in Jersey. A resource class cannot be a provider.  
Can you log an issue, as in this case Jersey should fail to deploy or  
log an error?
If you want to avoid having multiple class files you can do:
   @Path("/")
   public class MyResource {
     @Provider
     public static class MyResolver implements ContextResolver<Foo> {
       ...
     }
   }
But i recommend separating out provider functionality from that of  
resources so you do not mix components that serve different purposes.
BTW if you shared more of the code, i know i keep hassling you about  
that!, i could have identified potentially issues faster for you.
My apologies for leading you a bit around the houses w.r.t. general  
MBWs. The situation is a little complex and to do this properly i  
think we need to fix a couple of things in the JAX-RS spec.
One solution that would make this a lot clearer, but require a Jersey  
specific feature, is to use a Jersey resource filter [1] to adapt the  
response entity to a specific wrapper type that is supported by a  
specific MBW.
Paul.
On Apr 27, 2010, at 2:22 AM, Laird Nelson wrote:
> I am still doggedly on the trail of getting JAXB to do what I want.
>
> After some earlier messages on this list, I moved my
> ContextResolver<Class> implementation out of an EJB bean class and
> into an existing resource class.  I don't want to create more classes
> unless I have to.
>
> It looks like I have to.  My resource class is discovered at
> deployment time as a resource, but not as a ContextResolver<Class>
> (even though it's annotated with the @Provider annotation.
>
> Is it true that if you have a resource class, then that resource class
> cannot also be a context provider?  Or is there yet another mystery in
> JAX-RS dependency injection going on?
>
> Thanks,
> Laird
>
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