Bidirectional @OneToOne with CascadeType.ALL and optional=false on the non-owning side: --------------------------------------------------------------------------------------- Key: EJBTHREE-686 URL: http://jira.jboss.com/jira/browse/EJBTHREE-686 Project: EJB 3.0 Issue Type: Bug Components: EJB3 Extensions Affects Versions: EJB 3.0 RC8 - FD, EJB 3.0 RC7 - FD, EJB 3.0 RC6 - PFD Reporter: Jeremy Norris Consider the following two classes: ----- class X: @Entity @Table(name="x") public class X { private Integer id; private Y y; public X() { this.y = new Y(this); } @Id @GeneratedValue @Column(name = "id", nullable=false, updatable=false) public Integer getId() { return id; } protected void setId(Integer id) { this.id = id; } @OneToOne(cascade={CascadeType.ALL}, mappedBy="x") public Y getY() { return y; } protected void setY(Y y) { this.y = y; } } ----- class Y: @Entity @Table(name="y") public class Y { private Integer id; private X x; protected Y() { } public Y(X x) { this.x = x; x.setY(this); } @Id @GeneratedValue @Column(name = "id", nullable=false, updatable=false) public Integer getId() { return id; } protected void setId(Integer id) { this.id = id; } @OneToOne @JoinColumn(name="x_id", nullable=false) public X getX() { return x; } protected void setX(X x) { this.x = x; } } ----- X is persisted as follows: // Note: The constructor creates a new dependent Y instance, and hooks it up appropriately: X x = new X(); em.persist(x); ----- This works fine and persists as expected. However, if I add "optional=false" to the X.@OneToOne declaration, it fails with the following exception: javax.ejb.EJBTransactionRolledbackException: javax.persistence.PersistenceException: org.hibernate.PropertyValueException: not-null property references a null or transient value: ... Y.x Y.x definitely set. Also, "x == x.getY().getX()" is true. (Interestingly, this only happens if I put the "optional=false" on the X side. "optional=false" on the Y side is fine). This seems like a bug unless there is something I don't understand about "optional", but it seems pretty simply - The spec says the following about this attribute: (Optional) Whether the association is optional. If set to false then a non-null relationship must always exist. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira