How to change the status of container managed transaction which is marked for rollback

Question

@Singelton
class A {


@Resource 
private TrsnactionSynchronizationRegistry tsr;

    @TransactionAttribute(TransactionAttributeType.Required)
    method () {

     // here tsr.getTransactionStatus() is 0 means active
     EntityClass entity = new EnityClass(); 
     em.persist(entity);// Duplicate Key exception
     em.flush();
     // here tsr.getTransactionStatus() is 1 means markedForRollback;



    }

In ejb singletion bean using container managed transaction and hibernate as per the code above. After running the em.persist(entity) because of Duplicate key Exception the transaction was marked for rollback. But i want to keep the transaction active , how can i avoid it or change the status of the transaction to active.