パッケージ jakarta.ws.rs

 @Path("widgets/{widgetid}")
 @Consumes("application/widgets+xml")
 @Produces("application/widgets+xml")
 public class WidgetResource {

     @GET
     public String getWidget(@PathParam("widgetid") String id) {
         return getWidgetAsXml(id);
     }

     @PUT
     public void updateWidget(@PathParam("widgetid") String id,
                              Source update) {
         updateWidgetFromXml(id, update);
     }

     ...
 }