Dificuldade com addAnnotated

package br.com.clientes.Utility;

import br.com.cliente.models.Cliente;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.AnnotationConfiguration;

public class HibernateUtility 
{
    private static final SessionFactory factory;
    private static final ThreadLocal sessionThread = new ThreadLocal();
    private static final ThreadLocal transactionThread = new ThreadLocal();
    
    public static Session getSession()
    {
        Session session = (Session) sessionThread.get();
        
        if((session == null) || (!session.isOpen()))
        {
            session = factory.openSession();
            sessionThread.set(session);
        }
        return ((Session) sessionThread.get());
    }
    public static void closeSession()
    {
        Session session = (Session) sessionThread.get();
        if((session != null) && (session.isOpen()))
        {
            sessionThread.set(null);
            session.close();
        }
    }
    public static void beginTransaction()
    {
        Transaction transaction = getSession().beginTransaction();
        transactionThread.set(transaction);
    }
    public static void commitTransaction()
    {
        Transaction transaction = (Transaction) transactionThread.get();
        if((transaction != null) && (!(transaction.wasCommitted())) && (!(transaction.wasRolledBack())))
        {
            transaction.rollback();
            transactionThread.set(null);
        }
                
    }
    static
    {
        try
        {
            factory = new Configuration()
                    .setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLInnoDBDialect")
                    .setProperty("hibernate.connection.driver_class","com.mysql.jdbc.Driver")
                    .setProperty("hibernate.connection.url","jdbc:mysql//localhost:3306/bdcliente")
                    .setProperty("hibernate.connection.username","root")
                    .setProperty("hibernate.connection.password","")
                    .setProperty("hibernate.hbm22ddl.auto","update")
                    .setProperty("hibernate.c3p0.max_size","10")
                    .setProperty("hibernate.c3p0.min_size","2")
                    .setProperty("hibernate.c3p0.timeout","5000")
                    .setProperty("hibernate.c3p0.nax_statements","10")
                    .setProperty("hibernate.c3p0.idle_test_period","3000")
                    .setProperty("hibernate.c3p0.acquire_increment","2")
                    .setProperty("show_sql","true")
                    .setProperty("use_outer_join","true")
                    .setProperty("hibernate.generate_statisctics","true")
                    .setProperty("hibernate.use_sql_comments","true")
                    .setProperty("hibernate.format_sql","true")
                    .addAnnotatedClass(Cliente.class)
                    .buildSessionFactory();
        }
        catch(RuntimeException e)
        {
            e.printStackTrace();
            throw e;
        }
    }
    public static void main(String[] args)
    {
        
    }
}