Meu servidor não está funcionando e problema na @Produces

Classe Servidor:

package br.com.alura.loja.modelo;

import java.io.IOException;
import java.net.URI;

import org.glassfish.grizzly.http.server.HttpServer;
import org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpServerFactory;
import org.glassfish.jersey.server.ResourceConfig;


public class Servidor {

    public static void main(String args[]) throws IOException {
        URI uri = URI.create("http://localhost:8080");
        ResourceConfig config = new ResourceConfig().packages("br.com.alura.loja");
        HttpServer server = GrizzlyHttpServerFactory.createHttpServer(uri, config);

        System.out.println("Servidor rodando");
        System.in.read();
        server.stop();
    }

}

Classe CarrinhoResource:

package br.com.alura.loja.resource;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;

import br.com.alura.loja.dao.CarrinhoDAO;
import br.com.alura.loja.modelo.Carrinho;

@Path("carrinhos")
public class CarrinhoResource {

    @GET
    @Produces("text/xml")
    public String busca(){
        CarrinhoDAO daoCarrinho = new CarrinhoDAO();
        Carrinho carrinhoEncontrado = daoCarrinho.busca(1l);
        return carrinhoEncontrado.toXml();
    }
}