Hibernate works OK, but does not finish the process

I do not know if this is normal, but Hibernate starts the process, inserts the object into the database, but its java process is open.

What do I have to do to make this process stop automatically after insertion?

Here is a code that exemplifies the problem:

TestHibernate.java

package testehibernate;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;

public class TesteHibernate
{
    public static void main(String[] args)
    {
        Configuration configuration = new Configuration().configure();

        StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());

        SessionFactory factory = configuration.buildSessionFactory(builder.build());
        Session session = factory.openSession();

        Teste teste = new Teste();
        teste.setNome("Alexandre");
        teste.setEmail("[email protected]");

        session.beginTransaction();
        session.save(teste);
        session.getTransaction().commit();    

        session.close();
        factory.close(); // Não muda nada, o processo continua sem encerrar
    }

}

Test.java

package testehibernate;

import javax.persistence.Entity;
import javax.persistence.Id;

@Entity
public class Teste
{
    @Id
    private int id;
    private String nome;
    private String email;

    public int getId()
    {
        return id;
    }

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

    public String getNome()
    {
        return nome;
    }

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

    public String getEmail()
    {
        return email;
    }

    public void setEmail(String email)
    {
        this.email = email;
    }

}

Test Table:

CREATE TABLE 'teste' (
  'id' int(11) NOT NULL,
  'nome' varchar(255) NOT NULL,
  'email' varchar(255) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

ALTER TABLE 'teste'
  ADD PRIMARY KEY ('id');
TO_INCREMENT for table 'teste'

ALTER TABLE 'teste'
  MODIFY 'id' int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=14;

hibernate.cfg.xml

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

   <session-factory>
        <!-- Database connection settings -->
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost:3306/testdb</property>
        <property name="connection.username">root</property>
        <property name="connection.password"></property>

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>

        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>

        <!-- Mapping files -->
        <mapping class="testehibernate.Teste"/>
    </session-factory>

</hibernate-configuration>

Following modified code and working with Murilo's hint to close the registry:

package testehibernate;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;

public class TesteHibernate
{
    public static void main(String[] args)
    {
        Configuration configuration = new Configuration().configure();

        ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();

        SessionFactory factory = configuration.buildSessionFactory(serviceRegistry);
        Session session = factory.openSession();

        Teste teste = new Teste();
        teste.setNome("Alfredo");
        teste.setEmail("[email protected]");

        session.beginTransaction();
        session.save(teste);
        session.getTransaction().commit();    

        session.close();
        factory.close();

        StandardServiceRegistryBuilder.destroy(serviceRegistry);
    }

}