Has Spring-boot changed the way auto-increment of ids works through @GeneratedValue?

Question

Spring-Boot 2.0.0 seems to have modified the way Hibernate is auto configured.

Let\'s suppose two simple and independent JPA entities:

Answer 1

If you are in need for a quick, not future-proof solution to prevent this issue from happening:

spring.jpa.hibernate.use-new-id-generator-mappings=false, as from the Spring Boot 2 docs:

spring.jpa.hibernate.use-new-id-generator-mappings= # Whether to use Hibernate's newer IdentifierGenerator for AUTO, TABLE and SEQUENCE.

This will prevent from using the new generators and keep the old functionality included in Spring boot 1.x.x.

Please note that this is probably not the best solution, but it is very helpful on short term