Hibernate version:
2.1.6

I've succefuly used Hibernate with Oracle Application Server Containers for J2EE 10g (9.0.4.0.0) and also old version 9.0.3.0.0.

Now I'd like to use it with 10g (10.1.2.0.0).

I get this error at startup of Hibernate session:

net.sf.hibernate.HibernateException: Could not locate TransactionManager
at net.sf.hibernate.transaction.JNDITransactionManagerLookup.getTransactionManager(JNDITransactionManagerLookup.java:26)
at net.sf.hibernate.transaction.JTATransactionFactory.configure(JTATransactionFactory.java:48)
at net.sf.hibernate.transaction.TransactionFactoryFactory.buildTransactionFactory(TransactionFactoryFactory.java:48)
at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:66)
at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1155)
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:789)

These are my configuration property:
<property name="hibernate.transaction.factory_class" value="net.sf.hibernate.transaction.JTATransactionFactory" />
<property name="hibernate.transaction.manager_lookup_class" value="net.sf.hibernate.transaction.OrionTransactionManagerLookup" />

Any ideas?
Is anyone using this version of Orion application server?
Regards
Alessandro Rizzi