[Springframework-developer] DeadlockLoserDataAccessException vs CannotAcquireLockException

[Juergen H. <ju...@in...>]

Thomas, everybody,

Please have a look at the following JIRA issue:
http://opensource.atlassian.com/projects/spring/browse/SPR-733

I agree that DeadlockLoserDataAccessException should be a subclass of
ConcurrencyFailureException (which has been introduced in Spring 1.1), and
have already changed this locally.

However, DeadlockLoserDataAccessException isn't thrown anywhere;
SQLErrorCodes does not support it. So as indicated in SPR-733, should we
generally throw CannotAcquireLockException in such a case (which currently
seems to happen for some databases, as defined in sql-error-codes.xml)?
What's the semantic difference between those two exceptions, and is it worth
keeping both?

Juergen