selTodosGSON?

Front-end
#1

Pessoal, estou fazendo um webservice, mas estou pegando um HTTP Status 500!

ClienteController


package Controller;

import Dao.ClienteDao;
import Model.Cliente;
import java.util.ArrayList;
import java.util.List;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;

@ManagedBean
@SessionScoped
public class ClienteController {

	public List<Cliente> buscarTodos() throws ClassNotFoundException {
		ClienteDao clienteDAO = new ClienteDao();
		//return clienteDAO.buscarTodos();
                return (ArrayList<Cliente>) clienteDAO.buscarTodos();
                //return clienteDAO.buscarTodos();
	}
}

ClienteDao

package Dao;


import Interface.ClienteInterface;
import Model.Cliente;
import Util.HibernateUtil;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.Transaction;

public class ClienteDao implements ClienteInterface {

    @Override
    public List<Cliente> buscarTodos() {
        Session session = HibernateUtil.getSessionFactory().openSession();
        Transaction t = session.beginTransaction();
        List lista = session.createQuery("From Cliente").list();
        t.commit();
        return lista;
    }
    
}

ClienteInterface


package Interface;

import Model.Cliente;
import java.util.List;

/**
 *
 * @author jr
 */
public interface ClienteInterface  {
    public List<Cliente>buscarTodos();
}

ClienteResource


package Resources;

import Controller.ClienteController;
import Model.Cliente;
import com.google.gson.Gson;
import java.util.List;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;

@Path("/cliente")
public class ClienteResource {
	
	@GET
	@Path("/buscarTodos")
	@Produces("application/json")
	public List<Cliente> selTodos() throws ClassNotFoundException{
		return new ClienteController().buscarTodos();
	}

	@GET
	@Path("/buscarTodosGSON")
	@Produces("application/json")
	public String selTodosGSON() throws ClassNotFoundException{
		return new Gson().toJson(new ClienteController().buscarTodos());
	}

}

HibernateUtil



package Util;

import Model.Cliente;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.tool.hbm2ddl.SchemaExport;

public class HibernateUtil {

    private static SessionFactory sessionFactory;

    private HibernateUtil() {
        
    }

    public static SessionFactory getSessionFactory() {

        if (sessionFactory == null) {
            try {
                AnnotationConfiguration ac = new AnnotationConfiguration();
                ac.addAnnotatedClass(Cliente.class);
                sessionFactory = ac.configure().buildSessionFactory();
                SchemaExport se = new SchemaExport(ac);
                se.create(true, true);
                

            } catch (Throwable ex) {
                // Log the exception.
                System.err.println("===================Initial SessionFactory creation failed.==============================" + ex);
                throw new ExceptionInInitializerError(ex);
            }

            return sessionFactory;

        } else {
            return sessionFactory;
        }
        
    }

    public static void main(String[] args) {
        HibernateUtil.getSessionFactory();
    }

}

Cliente


package Model;

import java.io.Serializable;
import javax.persistence.*;
import javax.validation.constraints.NotNull;
import javax.xml.bind.annotation.XmlRootElement;

/**
 *
 * @author jr
 */
@Entity
@Table(name = "Cliente", catalog = "sisau", schema = "sisau")
@XmlRootElement
@NamedQueries({
    @NamedQuery(name = "Cliente.findAll", query = "SELECT c FROM Cliente c"),
    @NamedQuery(name = "Cliente.findById", query = "SELECT c FROM Cliente c WHERE c.id = :id"),
    @NamedQuery(name = "Cliente.findByNome", query = "SELECT c FROM Cliente c WHERE c.nome = :nome"),
    @NamedQuery(name = "Cliente.findByCpf", query = "SELECT c FROM Cliente c WHERE c.cpf = :cpf"),
    @NamedQuery(name = "Cliente.findByEndereco", query = "SELECT c FROM Cliente c WHERE c.endereco = :endereco")})

public class Cliente implements Serializable {
   
    private static final long serialVersionUID = 1L;
    
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Basic(optional = false)
    @NotNull
    @Column(name = "id", nullable = false)
    private Long id;
    
    @Column(name = "nome")
    private String nome;
    
    @Column(name = "cpf")
    private String cpf;
    
    @Column(name = "endereco")
    private String endereco;

    public Cliente() {
    }

    public Cliente(Long id) {
        this.id = id;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getNome() {
        return nome;
    }

    public void setNome(String nome) {
        this.nome = nome;
    }

    public String getCpf() {
        return cpf;
    }

    public void setCpf(String cpf) {
        this.cpf = cpf;
    }

    public String getEndereco() {
        return endereco;
    }

    public void setEndereco(String endereco) {
        this.endereco = endereco;
    }

    @Override
    public int hashCode() {
        int hash = 0;
        hash += (id != null ? id.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Cliente)) {
            return false;
        }
        Cliente other = (Cliente) object;
        if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
            return false;
        }
        return true;
    }

   @Override
	public String toString() {
		// TODO Auto-generated method stub
		return "ID: " + this.id +
				"\nNome: " + this.nome +
				"\nCPF: " + this.cpf +
				"\nEndereço: " + this.endereco;
	}
    
}

package Dao;

import java.util.List;
import org.junit.*;
import static org.junit.Assert.*;

/**
 *
 * @author jr
 */
public class ClienteDaoTest {
    
    public ClienteDaoTest() {
    }

    @BeforeClass
    public static void setUpClass() throws Exception {
    }

    @AfterClass
    public static void tearDownClass() throws Exception {
    }
    
    @Before
    public void setUp() {
    }
    
    @After
    public void tearDown() {
    }

    /**
     * Test of buscarTodos method, of class ClienteDao.
     */
    @Test
    public void testBuscarTodos() {
        System.out.println("buscarTodos");
        ClienteDao instance = new ClienteDao();
        List expResult = null;
        List result = instance.buscarTodos();
        assertEquals(expResult, result);
        // TODO review the generated test code and remove the default call to fail.
        fail("TESTE FALHOU");
    }
}


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
        <property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
        <property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/sisau</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password">debian23</property>
        <property name="hibernate.default_schema">sisau</property>
    
        <property name="hibernate.show_sql">true</property>
        <property name="hibernate.use_sql_comments">true</property>
        <property name="hibernate.format_sql">true</property>
        <property name="hibernate.hbm2ddl.auto">update</property>

        <mapping class="Model.Cliente"/>

    </session-factory>
</hibernate-configuration>
#2