Marko Bekhta ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiYjg4YzllMDEw... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16735?atlOrigin=eyJpIjoiYjg4Yz... ) HHH-16735 ( https://hibernate.atlassian.net/browse/HHH-16735?atlOrigin=eyJpIjoiYjg4Yz... ) State of Kotlin's overridden properties is not correctly retrieved when field access is used ( https://hibernate.atlassian.net/browse/HHH-16735?atlOrigin=eyJpIjoiYjg4Yz... ) Issue Type: Bug Assignee: Unassigned Created: 01/Jun/2023 03:31 AM Priority: Minor Reporter: Marko Bekhta ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) This came up while looking into https://github.com/quarkusio/quarkus/issues/33740 When there’s an entity hierarchy that relies on the usage of overridden properties, a state built for a subtype ends up having nulls for such a property. For example, with a model @Entity @Table(name = "shape") @Inheritance(strategy = InheritanceType.JOINED) abstract class Shape( @Id @JdbcTypeCode(SqlTypes.VARCHAR) @Column(name = "id", updatable = false, nullable = false, unique = true) open val id: UUID, @Length(max = 100) @Column(name = "name", nullable = false, length = 100) open var name: String, ) @Entity @Table(name = "rectangle") @PrimaryKeyJoinColumn(name = "shape_id") data class Rectangle( override val id: UUID, override var name: String, ) : Shape(id, name) trying to persist a rectangle entity : val rectangle = Rectangle( id = UUID.randomUUID(), name = "Rectangle", color = Color.Red, properties = Properties("foo", "bar") ) em.persist(rectangle) will result in https://github.com/hibernate/hibernate-orm/blob/f22d7e1328c0e063528eb8a16... returning an array of nulls and failing the operation. Also, confirmed that switching to @Access(AccessType.PROPERTY) for such properties helps to work around the problem. ( https://hibernate.atlassian.net/browse/HHH-16735#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16735#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#100225- sha1:40c4da4 )