Re:duvida erro hibernate

<?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.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost/Sophos</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password">root</property>

        <property name="hibernate.c3p0.min_size">5</property>
        <property name="hibernate.c3p0.max_size">20</property>
        <property name="hibernate.c3p0.timeout">300</property>
        <property name="hibernate.c3p0.max_statements">50</property>
        <property name="hibernate.c3p0.idle_test_period">3000</property>

        
        <property name="show_sql">true</property>
        <property name="format_sql">true</property>
        <property name="use_sql_comments">true</property>
        

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

        <mapping resource="pkg/pojo/Produto.hbm.xml"/>

    </session-factory>


</hibernate-configuration>

public class HibernateUtil {

	private static SessionFactory sessaoFactory ;
	
	static {
		
		try {
		
			sessaoFactory = new Configuration().configure().buildSessionFactory();
			
		} catch(Throwable e) {
			 throw new ExceptionInInitializerError(e);
		}
		
	}

	public static SessionFactory getSessaoFactory() {
		return sessaoFactory;
	}

	public static void fecharConexao() {
		getSessaoFactory().close();
	}
		
}

public class Produto  implements Serializable {

	private static final long serialVersionUID = 1L;

	private int codProduto ;
	
	private String nome ;
	
	private int qtdProduto ;
	
	private double preco ;

	public Produto() { }
	
        //metodos get() e set()	
}

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

    <class name="pkg.pojo.Produto" table="TBL_PRODUTO">
        
        <id name="codProduto" column="CODPRODUTO">
            <generator class="increment"/>
        </id>
        
        <property name="nome" column="NOME"/>

        <property name="qtdProduto" column="QTDPRODUTO"/>

        <property name="preco" column="PRECO"/>

    </class>

</hibernate-mapping>

public class HelloWorld {

	public static void main(String[] args) {
		
		Session newSessao = HibernateUtil.getSessaoFactory().openSession();
		
		Transaction newTx = newSessao.beginTransaction();
		
		List<Produto> lista = newSessao.createQuery("FROM TBL_PRODUTO").list();

		
		for (Iterator<Produto> iterator = lista.iterator(); iterator.hasNext();) {
			
			Produto produto2 = iterator.next();
			
			System.out.println("Produto :" + produto2.getNome());
			
		}
		
		newTx.commit();
		
		newSessao.close();
		
		HibernateUtil.fecharConexao();
      }
}