Apache CXF - How to add custom HTTP Header to JAX-RS response?

Question

I'm trying to add custom HTTP header to response in Apache CXF. I need to count MD5 from content and add it as a HTTP header. I tried to use ResponseHandler or Interceptor. My last try was

@Component
public class ResponseBPAuthFilter extends AbstractOutDatabindingInterceptor {


   public ResponseBPAuthFilter() {
       super(Phase.MARSHAL_ENDING);
   }


   @Override
   public void handleMessage(Message t) throws Fault {

       Map headers = CastUtils.cast((Map)t.get(Message.PROTOCOL_HEADERS));
       headers.put("Some-Header", Arrays.asList("test"));

   }

}

but it does nothing.