Spring's persistence exception translation not working with Hibernate 5 - spring

Question

I am using Spring 4.3.10 and Hibernate 5.2.10 (I've migrated from Hibernate 4 since which moment got into below problem). The following post-processor is declared in order to take advantage of Spring's translation of Hibernate exceptions in my #Repository-marked service.
#Bean
public PersistenceExceptionTranslationPostProcessor persistenceExceptionTranslationPostProcessor() {
return new PersistenceExceptionTranslationPostProcessor();
}
My code violates a DB constraint, so Hibernate will throw a org.hibernate.exception.ConstraintViolationException which I expect to translate into Spring's generic org.springframework.dao.DataIntegrityViolationException. However, what was working in Hibernate 4 does not in 5.
As I see from the source code, Hibernate 5 uses internally its ExceptionConverter which wraps the ConstraintViolationException with a JPA's javax.persistence.PersistenceException. Here's how Spring's LocalSessionFactoryBean's translateExceptionIfPossible() (inherited from HibernateExceptionTranslator) looks like:
#Override
public DataAccessException translateExceptionIfPossible(RuntimeException ex) {
if (ex instanceof HibernateException) {
return convertHibernateAccessException((HibernateException) ex);
}
return null;
}
An instance of PersistenceException instead of a bare Hibernate exception comes here, so translation won't happen.
I still admit the problem is mine as I couldn't find anyone facing this problem with such a popular usage. Any Ideas? Thanks!

Answer 1

It was a configuration issue. The problem was in spring-orm library which was of version 4.3.1 while the rest of Spring components were of 4.3.10. In the newer version, HibernateExceptionTranslator.translateExceptionIfPossible() looks upgraded:
#Override
public DataAccessException translateExceptionIfPossible(RuntimeException ex) {
if (ex instanceof HibernateException) {
return convertHibernateAccessException((HibernateException) ex);
}
if (ex instanceof PersistenceException) {
if (ex.getCause() instanceof HibernateException) {
// this is my case!
return convertHibernateAccessException((HibernateException) ex.getCause());
}
return EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(ex);
}
return null;
}
Now it works as expected.