How to have jaxb annotations ignored for Accept:application/json in JBoss EAP 7

Issue

• How to have jaxb annotations ignored for Accept:application/json in JBoss EAP 7

EAP 6.4 was returning:

curl http://localhost:8080/helloworld-rs/rest/jsonObject
{"url":"http://redhat.com/"}

EAP 7 is returning:

curl http://localhost:8080/helloworld-rs/rest/jsonObject
{"my-app-url":"http://redhat.com/"}

@Path("/")
public class HelloWorld {

    @GET
    @Path("/jsonObject")
    @Produces({ "application/json" })
    public DocumentData getJsonObject() {
      MyData data = new MyData();
      data.setUrl("http://redhat.com/");
      return data;
    }   

@Root (name="my-data")
@XmlRootElement(name="my-data")
@XmlAccessorType(XmlAccessType.FIELD)
public class MyData implements Serializable {   

   @Attribute (name = "my-app-url", required = false)
   @XmlAttribute(name = "my-app-url", required = false)
   protected String url;

   public String getUrl() { return url; }
   public void setUrl(String url) { this.url = url; }
}