SCBCD certification / why this answer?

[M Mistroni]

hi all,
i was trying to do some mock exam at ejbcerficate.com, found following question

Which one of the following statements regarding the client view of exceptions received from an enterprise bean invocation is correct? Exceptions

Incorrect, you chose answer 4. The correct answer is 5.

1. The client can safely continue the transaction by retrying the operation if an application exception is received.
2. The client can safely continue the transaction by retrying the operation if an application exception is received, but only after checking the transaction has not been marked for rollback.
3. The client can safely continue the transaction by retrying the operation if a non-application exception is received.
4. A local client cannot continue a transaction if javax.transaction.TransactionRolledbackLocalException is received.
5. A remote client cannot continue a transaction if javax.transaction.TransactionRolledbackException is received.


Why 4 is wrong? according to explanation

Answer 4 is incorrect. javax.transaction.TransactionRolledbackException indicates to a local client that the transaction has definitely been marked for rollback. This exception is a subclass of javax.ejb.EJBException.

but i still dont get it..... if the client receives a TransactionRolledbackLocalExcepiton, it's pointless to continue.. isnt' it?

[wise owen]

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