Spring transaction: rollback on Exception or Throwable

Question

I wonder whether it makes sense to use instead of

@Transactional(propagation = Propagation.REQUIRED, rollbackFor = Exception.class)

to use

Answer 1

As I understand catching Error will help us behave correctly even when something really bad happen. Or maybe it wouldn't help?

You don't need to explicitly specify rollbackFor = Throwable.class, because spring will by default rollback the transaction if an Error occurs.

See 12.5.3 Rolling back a declarative transaction

In its default configuration, the Spring Framework's transaction infrastructure code only marks a transaction for rollback in the case of runtime, unchecked exceptions; that is, when the thrown exception is an instance or subclass of RuntimeException. (Errors will also - by default - result in a rollback). Checked exceptions that are thrown from a transactional method do not result in rollback in the default configuration.

Or take a look at the DefaultTransactionAttribute

public boolean rollbackOn(Throwable ex) {
    return (ex instanceof RuntimeException || ex instanceof Error);
}