Yoann Rodière ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMTcyN2Y0OTNi... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16459?atlOrigin=eyJpIjoiMTcyN2... ) HHH-16459 ( https://hibernate.atlassian.net/browse/HHH-16459?atlOrigin=eyJpIjoiMTcyN2... ) Bytecode-enhanced inline dirty tracking ignores generic associations from mapped superclasses ( https://hibernate.atlassian.net/browse/HHH-16459?atlOrigin=eyJpIjoiMTcyN2... ) Issue Type: Bug Affects Versions: 6.2.0 Assignee: Yoann Rodière ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) Components: bytecode-enhancement Created: 12/Apr/2023 02:47 AM Fix Versions: 6.2.1 Priority: Major Reporter: Yoann Rodière ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) Hibernate ORM’s bytecode-enhanced inline dirty tracking will ignore changes to Item.other in the following model. The problem seems related to generics since removing generics will fix it. @Entity public static class Other { @Id @GeneratedValue private Long id; public Long getId() { return id; } public void setId(Long id) { this.id = id; } } @MappedSuperclass public static abstract class Item<T> { @ManyToOne( fetch = FetchType.LAZY ) private T other; public T getOther() { return other; } public void setOther(T other) { this.other = other; } } @Entity public static class ChildItem extends Item<Other> { @Id @GeneratedValue private Long id; public Long getId() { return id; } public void setId(Long id) { this.id = id; } } ( https://hibernate.atlassian.net/browse/HHH-16459#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16459#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#100221- sha1:c4871f2 )