Hibernate complains for null @Id in @OneToOne even if it is not null

Question

I am trying to achieve @OneToOne association, using the same @Id between a Car and a Person. A Person is has an

Answer 1

(Disclaimer: It was not meant to be a Q&A)

The problem is in @MapsId annotation. Changing it to:

@MapsId("name") //Here
@OneToOne
@JoinColumn(name = "name")
@OnDelete(action = OnDeleteAction.CASCADE)
private Person person;

seems to fix the problem.