You're stuck in 2007. People doing modern java use:

    @Path("/hello")
    @Produces(MediaType.APPLICATION_JSON)
    class HelloController {
      class Greeting {
        public Greeting(String name) {
          this.content = "Hello, " + name;
        }
        public final String content;
      }

      @GET
      public Greeting greet(@PathParam("name") String name) {
        return new Greeting(name);
      }
    }

    > curl http://localhost:8080/hello?name=me
    {"content": "Hello, me"}