Hi,
I tried using hibernate3 alpha version in my existing codes that was first implemented with hibernate2.1.6.

With hibernate2.jar, it runs fine but with the used of hibernate3.jar - it failed on the
sessionFactory = new Configuration().configure().buildSessionFactory() statement with HibenateException of "could not instantiate id generator"

Can someone tell me what went wrong and what is missing ...

Cheers.

found the cause of my problem - forgot to change the package rename of hibernate for the following line in the hibernate.xml.cfg :-
<property name="hibernate.dialect">sf.net.hibernate.dialect.Oracle9Dialect</property> --> should be changed to
<property name="hibernate.dialect">org.hibernate.dialect.Oracle9Dialect</property>