Hello,

I am in the process of developing a persistence layer based on Hibernate. I want to use the ThreadLocal capability of Hibernate for obtaining a Session

I have the following properties set in the hibernate.cfg.xml

<property name="hibernate.current_session_context_class">thread</property>
<property name="hibernate.transaction.factory_class">org.hibernate.transaction.CMTTransactionFactory</property>
<property name="hibernate.transaction.manager_lookup_class">org.hibernate.transaction.WebSphereExtendedJTATransactionLookup</property>

<property name="hibernate.transaction.flush_before_completion">true</property>
<property name="hibernate.transaction.auto_close_session">true</property>

The SessionFactory.getCurrentSession() returns a session but when I try to perform an operation on this session, I get a HibernateException with the following message.
"get is not valid without active transaction"

I was under the impression that since I am using a datasource and a managed environment, the transaction would be associated with the Session.

Am I missing a config parameter or is the approach altogether wrong?

This error does not occur when I use SessionFactory.openSession()

Alternatively, I could implement ThreadLocal code myself and set a Session obtained by the SessionFactory.openSession().

Any help would be much appreciated.

Well, it was pain to figure out what was wrong. But thanks to my good old friend Martin Sieber, we found the solution. The property "hibernate.current_session_context_class" should not be specified at all.