Why a delete request can be generate after saveAndFlush() ??

Hibernate: update commande set ....
Hibernate: delete from tax_produit where ID =?

I do not understand the mecanism

thank you in advance

That's because a Delete action was scheduled and propagated during flush time. For more details, check out the following resources:

- A beginner’s guide to JPA/Hibernate entity state transitions
- A beginner’s guide to flush strategies in JPA and Hibernate
- A beginner’s guide to Hibernate flush operation order