Using hibernate+spring session fails to persist data

Hi,

I desperately need help with the problem I have with hibernate session data persisting.

The problem is that sometimes the save() works and data is persisted into the database, and in occassion it is not.

I do not get any errors. I have placed in logs before and after the transaction, and there are no errors in the logs.

This is very frustrating.

I am using Spring 2 + hibernate 3.2.

The persistence of the hibernate objects are within the transaction.
Below is the part of the code:
-----------------------------------------------------------------------------------
HibernateTransactionManager transactionManager = (HibernateTransactionManager) ctx.getBean("transactionManager");
DefaultTransactionDefinition def = new DefaultTransactionDefinition();
def.setPropagationBehavior(TransactionDefinition.P ROPAGATION_REQUIRED);

TransactionStatus status = transactionManager.getTransaction(def);

........
I use hibernateTemplate.save() to store the data.
....
//I am clearing the session before commit
Session session = SessionFactoryUtils.getSession(getSessionFactory() , false);
session.flush();
session.clear();

transactionManager.commit(status);

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I am at loss, please help.