Hello guys,

In both cases I received an exception.

If I use:

HibernatePersistence hbPersist = new HibernatePersistence();
EntityManagerFactory emf = hbPersist.createEntityManagerFactory ("sistemabancario", new HashMap());

I receive:

javax.persistence.PersistenceException: org.hibernate.HibernateException: Could not instantiate dialect class

My persistence.xml is:

<entity-manager>
<name>sistemabancario</name>
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>sistemaBancario.servidor.persistencia.vo.BancarioVo</class>
<class>sistemaBancario.servidor.persistencia.vo.PessoaFisicaVo</class>
<jta-data-source>java:/DefaultDS</jta-data-source>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.connection.username" value="root"/>
<property name="hibernate.connection.url" value="jdbc:mysql://localhost/sistemabancario"/>
<property name="hibernate.hbm2ddl.auto" value="create-drop"/>
</properties>
</entity-manager>

and hibernate3.jar is in my classpath.

If I use:

EntityManagerFactory emf = Persistence.createEntityManagerFactory("sistemabancario");

I receive:

java.lang.ClassCastException: org.hibernate.ejb.HibernatePersistence

Does anyone know what's wrong?

Which one should I use?

Thanks, Guilherme