DataIntegrityViolationException is thrown by Spring when an entity
with a duplicate key is saved by Hibernate.

This works fine with JDBC drivers of other database servers.

Tried with Hibernate 2 + Spring 1.1 + Firebird JDBC Driver 1.5.1 and
Hibernate 3 + Spring 1.2 + Firebird JDBC Driver 5.5

I understand that this is probably an Hibernate/Spring issue, but I'd
like to know if somebody else found a workaround for this problem.

Thanks for attention.