Christian Beikov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMzY2NGMyNjYw... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-15520?atlOrigin=eyJpIjoiMzY2NG... ) HHH-15520 ( https://hibernate.atlassian.net/browse/HHH-15520?atlOrigin=eyJpIjoiMzY2NG... ) ValueGeneration on @OneToOne leads to boot error 5.6.11.Final ( https://hibernate.atlassian.net/browse/HHH-15520?atlOrigin=eyJpIjoiMzY2NG... ) Issue Type: Bug Affects Versions: 5.6.11 Assignee: Unassigned Components: hibernate-core Created: 16/Sep/2022 07:55 AM Priority: Major Reporter: Christian Beikov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) The fix for https://hibernate.atlassian.net/browse/HHH-15440 ( https://hibernate.atlassian.net/browse/HHH-15440 ) causes new issues. The following model fails on boot with a NPE now with 5.6.11.Final, but works fine with 5.6.10.Final: @Entity @Table(name = "A" ) public static class A { @Id private Long id; @Generated(GenerationTime.INSERT) @OneToOne(mappedBy = "a" ) private B b; } @Entity @Subselect( "SELECT 5 as b, a.id AS aId FROM A a" ) public static class B { private Long aId; private A a; private Long b; @Id public Long getAId() { return aId; } public void setAId( Long aId) { this.aId = aId; } @OneToOne @PrimaryKeyJoinColumn(name = "a_id" ) public A getA() { return a; } public void setA(A a) { this.a = a; } @Column public Long getB() { return b; } public void setB( Long b) { this.b = b; } } The NPE happens due to the change here https://github.com/hibernate/hibernate-orm/commit/541ddb7a26da4e4cd01a21f... ( https://github.com/hibernate/hibernate-orm/commit/541ddb7a26da4e4cd01a21f... ) which causes annotations to be now scanned on a property, but the buildingContext is missing on the PropertyBinder. When setting the buildingContext , a new error will appear though because then a value generation SQL statement is generated for entity A which leads to index out of bounds error. ( https://hibernate.atlassian.net/browse/HHH-15520#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-15520#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100207- sha1:30c8888 )