Ejb3 isolated (autonomus) transaction/commit

Question

I'm using XA (2-phase) transaction. I want to log to one log-table through Log class and Entity Manager. My method inside EJB Session bean looks like:
private void logError(Throwable throwable) {
    LogEntity logEntity = new LogEntity();
    // Set everything
    entityManager.persist(logEntity);
    entityManager.flush();
}I want to it in isolated (autonomous) transaction independent of any "outer" transaction. I have already tried to add @TransactionAttribute(value = TransactionAttributeType.REQUIRES_NEW) and @TransactionAttribute(value = TransactionAttributeType.NOT_SUPPORTED) before method name and does not work.
Before I call EJB3 method I create user transaction like:
try {
    UserTransaction transaction = (UserTransaction)context.lookup("javax.transaction.UserTransaction");
    transaction.begin();
    // Call EJB3 method
    transaction.commit();
} catch (Throwable t) {
    t.printStackTrace();
    try {
        transaction.rollback();
    } catch (SystemException e) {
        e.printStackTrace();
}I want to Log no matter if commit is done or rollback is done or none. How to? I have already tried to add annotation TransactionAttribute like TransactionAttributeType.NOT_SUPPORTED. Also tried al other values for TransactionAttribute, but without luck.
Regards

Answer 1

{forum:id=972} seems like a better place for your question