Log de testes não aparece

Fiz conforme exercício mas não está aparecendo o log das transações no servidor. Poderiam me ajudar?

package br.com.alura.loja;

import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.glassfish.grizzly.http.server.HttpServer;
import org.glassfish.jersey.client.ClientConfig;
import org.glassfish.jersey.filter.LoggingFilter;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import com.thoughtworks.xstream.XStream;

import br.com.alura.loja.modelo.Carrinho;
import br.com.alura.loja.modelo.Produto;
import br.com.alura.loja.modelo.Projeto;
import junit.framework.Assert;

public class ClienteTest {

    private HttpServer server;
    private Client client;

    @Before
    public void before(){
        server = Servidor.inicializaServidor();
        ClientConfig config = new ClientConfig();
        config.register(new LoggingFilter());
        this.client = ClientBuilder.newClient(config);
    }

    @After
    public void after() {
        server.stop();
    }

    @Test
    public void testaQueBuscarUmCarrinhoTrazOCarrinhoEsperado() {

        Client client = ClientBuilder.newClient();
        WebTarget target = client.target("http://localhost:8080");
        String conteudo = target.path("/carrinhos/1").request().get(String.class);
        Carrinho carrinho = (Carrinho) new XStream().fromXML(conteudo);
        Assert.assertEquals("Rua Vergueiro 3185, 8 andar", carrinho.getRua());


    }

    @Test
    public void testaQueBuscarUmProjetoTrazOProjetoEsperado() {

        Client client = ClientBuilder.newClient();
        WebTarget target = client.target("http://localhost:8080");
        String conteudo = target.path("/projetos/1").request().get(String.class);
        Projeto projeto = (Projeto) new XStream().fromXML(conteudo);
        Assert.assertEquals("Minha loja", projeto.getNome());


    }

    @Test
    public void testeParaOPost(){
        Client client = ClientBuilder.newClient();
        WebTarget target = client.target("http://localhost:8080");

        Carrinho carrinho = new Carrinho();
        carrinho.adiciona(new Produto(314L, "Tablet", 999, 1));
        carrinho.setRua("Rua Vergueiro");
        carrinho.setCidade("Sao Paulo");
        String xml = carrinho.toXML();        

        Entity<String> entity = Entity.entity(xml, MediaType.APPLICATION_XML);

        Response response = target.path("/carrinhos").request().post(entity);
        Assert.assertEquals(201,  response.getStatus());

        String location = response.getHeaderString("Location");
        String conteudo = client.target(location).request().get(String.class);
        Assert.assertTrue(conteudo.contains("Tablet"));


    }


}

package br.com.alura.loja;

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 {
        HttpServer server = inicializaServidor();
        System.out.println("Servidor rodando");
        System.in.read();
        server.stop();
    }

    static HttpServer inicializaServidor() {
        ResourceConfig config = new ResourceConfig().packages("br.com.alura.loja");
        URI uri = URI.create("http://localhost:8080/");
        HttpServer server = GrizzlyHttpServerFactory.createHttpServer(uri, config);
        return server;
    }

}

Segue resultado do log:

dez 07, 2016 12:36:37 PM org.glassfish.jersey.server.ApplicationHandler initialize
INFORMAÇÕES: Initiating Jersey application, version Jersey: 2.5 2013-12-18 14:27:29...
dez 07, 2016 12:36:37 PM org.glassfish.grizzly.http.server.NetworkListener start
INFORMAÇÕES: Started listener bound to [localhost:8080]
dez 07, 2016 12:36:37 PM org.glassfish.grizzly.http.server.HttpServer start
INFORMAÇÕES: [HttpServer] Started.
dez 07, 2016 12:36:38 PM org.glassfish.grizzly.http.server.NetworkListener stop
INFORMAÇÕES: Stopped listener bound to [localhost:8080]
dez 07, 2016 12:36:38 PM org.glassfish.jersey.server.ApplicationHandler initialize
INFORMAÇÕES: Initiating Jersey application, version Jersey: 2.5 2013-12-18 14:27:29...
dez 07, 2016 12:36:38 PM org.glassfish.grizzly.http.server.NetworkListener start
INFORMAÇÕES: Started listener bound to [localhost:8080]
dez 07, 2016 12:36:38 PM org.glassfish.grizzly.http.server.HttpServer start
INFORMAÇÕES: [HttpServer-1] Started.
dez 07, 2016 12:36:38 PM org.glassfish.grizzly.http.server.NetworkListener stop
INFORMAÇÕES: Stopped listener bound to [localhost:8080]
dez 07, 2016 12:36:38 PM org.glassfish.jersey.server.ApplicationHandler initialize
INFORMAÇÕES: Initiating Jersey application, version Jersey: 2.5 2013-12-18 14:27:29...
dez 07, 2016 12:36:38 PM org.glassfish.grizzly.http.server.NetworkListener start
INFORMAÇÕES: Started listener bound to [localhost:8080]
dez 07, 2016 12:36:38 PM org.glassfish.grizzly.http.server.HttpServer start
INFORMAÇÕES: [HttpServer-2] Started.
dez 07, 2016 12:36:38 PM org.glassfish.grizzly.http.server.NetworkListener stop
INFORMAÇÕES: Stopped listener bound to [localhost:8080]