hibernate.transaction.JDBCTransaction - Could not toggle autocommit

[Naresh Shanmugam]

I am getting the following exception,

ERROR hibernate.transaction.JDBCTransaction - Could not toggle autocommit
org.hibernate.SessionException: Session is closed
	at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:139)
	at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:228)
	at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:220)
	at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:197)
	at com.project.findList(BaseHibernateDAO.java:97)

from the following code, the exception is at line 12(com.project.findList(BaseHibernateDAO.java:97)), "tx.rollback()"

		try {
            session = sessionFactory.getCurrentSession();
			tx = session.beginTransaction();
			query = this.createQuery(session, task, id);
			data = query.list();
			tx.commit();
		} catch (HibernateException e) {
			if (log.isErrorEnabled()) {
				log.error("Error occurred when finding list.", e);
			}
			if (tx != null && tx.isActive()) {
				[b]tx.rollback();[/b]
			}
			throw e;
		}

has anyone faced this exception before or any idea how to overcome this

[Bill Gorder]

Please post your hibernate configuration including any hibernate properties you are setting. Also is your datasource defined in a container? Are you using JTA?