Hello, i’m trying to create like this class ClassA { @OneToOne @JoinColumn(name = “B”) private ClassB b; } i create query : em.createQuery("select a from ClassA a , IN(a.b) ab) and get error : Caused by: org.hibernate.query.SemanticException: Expecting plural attribute valued path [com.ex…

It just worked by accident. This syntax is from JPQL and is only supposed to support collections. You can just use the proper syntax though: em.createQuery("select a from ClassA a join a.b ab")

Thanks for answer, this worked fine.

I also have one question please, how can i join on UserType objects with jpql ? on hibernate 5 i could join, but on hibernate 6 it throws error : Caused by: java.lang.IllegalArgumentException: Can’t compare test expression of type [BasicSqmPathSource(object : Object.class)] with element of type […

Please create a new topic and share more details.

Done [image] HIbernate ORM UserType mapping Hibernate ORM Hello, how can i join on UserType objects with jpql ? in hibernate 5 it worked fine , but on hibernate 6 it throws error : Caused by: java.lang.IllegalArgumentException: Can’t compare test expression of type [Ba…

OneToOne relationship in Hibernate 6

Hibernate ORM

Zuka February 5, 2024, 12:23pm 6

Done

Topic		Replies	Views
HIbernate ORM UserType mapping Hibernate ORM	3	330	February 6, 2024
Hibernate 5 and 6 differences @ManyToOne @JoinColumn Hibernate ORM	18	1052	November 22, 2024
JPQL and Enums via @ElementCollection Hibernate ORM	2	1195	October 6, 2023
Hibernate 6 HQL join without ON clause does not work Hibernate ORM	2	28	March 16, 2026
Parent/Child ManyToOne query causing internal Hibernate exception when migrating to 6.x Hibernate ORM	4	216	July 14, 2025

OneToOne relationship in Hibernate 6

Related topics