@Zed have you been able to fix this issue? I found the same issue in the current spring-data implementation (3.0.4). If it is helpful I created an example repository which proves the Bug. I found out too, that with plain a plain Hibernate implementation this issue doesn't appear. Here are the Links to the issue and the repository: https://github.com/jan-schumacher/KotlinJpaInheritanceIssue https://github.com/jan-schumacher/KotlinJpaInheritanceIssue/blob/main/src/test/kotlin/com/example/kotlinjpainheritanceissue/HibernateImplementationTests.kt https://github.com/spring-projects/spring-data-jpa/issues/2867 |