Using Java-First Approach

package server;

import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebService;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;

@WebService
@Path("/bookstore")
@Consumes("application/xml")
@Produces("application/xml")
public interface BookStoreJaxrsJaxws {
    
   @WebMethod
   @GET
   @Path("/{id}")
   @Consumes("application/xml")
   Book getBook(@PathParam("id") @WebParam(name = "id") Long id);

   @WebMethod
   @POST
   @Path("/books")
   Book addBook(@WebParam(name = "book") Book book);
}