Message Title

Alessandro Polverini created an issue

Issue Type:	Bug
Affects Versions:	5.4.2
Assignee:	Unassigned
Components:	hibernate-core
Created:	25/May/2019 04:20 AM
Priority:	Major
Reporter:	Alessandro Polverini

I have a relationship similar to this one:

 
                                                                @Entity
public class EntityA {
  @Id
  @GeneratedValue(strategy = GenerationType.IDENTITY)
  private Integer id;
 
                                                            

and

 
                                                                @Entity
public class EntityB {
  @Id
  private Integer id;

  @MapsId
  @OneToOne
  @JoinColumn(name = "id", updatable = false)
  private EntityA a;
 
                                                            

and while everything worked fine until hibernate 5.3, it does not work anymore with 5.4, with this error:

Caused by: org.hibernate.id.IdentifierGenerationException: null id generated for:class EntityB

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