Hibernate não acha o driver.

Ola pessoal

Estou usando o hibernate 2.1 com o mysql mas esta dando um problema ele diz que não esta achando o driver, mas ja configurei todos os classpaths e mesmo assim ela diz que não achou:

004-06-12 17:48:26,531 INFO  hibernate.cfg.Environment  -> Hibernate 2.1.1
 2004-06-12 17:48:26,531 INFO  hibernate.cfg.Environment  -> loaded properties from resource hibernate.properties: {hibernate.connection.username=root , hibernate.connection.password="", hibernate.cglib.use_reflection_optimizer=true, hibernate.dialect=net.sf.hibernate.dialect.MySQLDialect, hibernate.connection.url=jdbc:mysql://localhost:3306/cadastro , hibernate.connection.driver_class=com.mysql.jdbc.Driver }
 2004-06-12 17:48:26,546 INFO  hibernate.cfg.Environment  -> using CGLIB reflection optimizer
 2004-06-12 17:48:26,546 INFO  hibernate.cfg.Configuration  -> Mapping resource: Clientes.hbm.xml
 2004-06-12 17:48:29,218 INFO  hibernate.cfg.Binder  -> Mapping class: Clientes -> clientes
 2004-06-12 17:48:29,390 INFO  hibernate.cfg.Configuration  -> processing one-to-many association mappings
 2004-06-12 17:48:29,390 INFO  hibernate.cfg.Configuration  -> processing one-to-one association property references
 2004-06-12 17:48:29,390 INFO  hibernate.cfg.Configuration  -> processing foreign key constraints
 2004-06-12 17:48:29,421 INFO  hibernate.dialect.Dialect  -> Using dialect: net.sf.hibernate.dialect.MySQLDialect
 2004-06-12 17:48:29,421 INFO  hibernate.cfg.SettingsFactory  -> Use outer join fetching: true
 2004-06-12 17:48:29,437 INFO  hibernate.connection.DriverManagerConnectionProvider  -> Using Hibernate built-in connection pool (not for production use!)
 2004-06-12 17:48:29,453 INFO  hibernate.connection.DriverManagerConnectionProvider  -> Hibernate connection pool size: 20
 2004-06-12 17:48:29,453 FATAL hibernate.connection.DriverManagerConnectionProvider  -> JDBC Driver class not found: com.mysql.jdbc.Driver 
 net.sf.hibernate.HibernateException: JDBC Driver class not found: com.mysql.jdbc.Driver 
	at net.sf.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:58)
	at net.sf.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:83)
	at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:64)
	at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1091)
	at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:737)
	at ClientesDAO.<init>(ClientesDAO.java:12)
	at UsaClientes.main(UsaClientes.java:15)

gostaria de saber o que poder ser, estou usando o eclipse, mas ja inclui os jar's no projeto mas mesmo assim ele não acha o driver do mysql.

Você colocou o JDBC do MySQL ou somente o do hibernate no classhpath?

coloquei os 2, e nada disso funcionar.

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