Yoann Rodière ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiNmE5MDE5YWZl... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16832?atlOrigin=eyJpIjoiNmE5MD... ) HHH-16832 ( https://hibernate.atlassian.net/browse/HHH-16832?atlOrigin=eyJpIjoiNmE5MD... ) Bytecode enhancement leads to broken constructor for a generic embedded field in a MappedSuperclass ( https://hibernate.atlassian.net/browse/HHH-16832?atlOrigin=eyJpIjoiNmE5MD... ) Issue Type: Bug Affects Versions: 6.2.5 Assignee: Unassigned Components: hibernate-core Created: 21/Jun/2023 03:34 AM Priority: Major Reporter: Yoann Rodière ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) Affects ORM 6.3 (current main) and 6.2.5, at least. I think 6.2.4 and below were a bit less affected, because they didn’t detect composite fields correctly (see HHH-16774 ( https://hibernate.atlassian.net/browse/HHH-16774 ) Closed ), so one might not have noticed when using e.g. @EmbeddedId , but the bug was already there when using @Embedded. With the following model, one will get this exception when calling MyEntity ’s constructor: java.lang.NoSuchMethodError: 'org.hibernate.orm.test.bytecode.enhance.internal.bytebuddy.DirtyCheckingWithEmbeddableAndNonVisibleGenericMappedSuperclassTest$MyEmbeddable org.hibernate.orm.test.bytecode.enhance.internal.bytebuddy.MyNonVisibleGenericMappedSuperclass.$$_hibernate_read_embedded()' at org.hibernate.orm.test.bytecode.enhance.internal.bytebuddy.DirtyCheckingWithEmbeddableAndNonVisibleGenericMappedSuperclassTest$MyEntity.$$_hibernate_write_embedded(DirtyCheckingWithEmbeddableAndNonVisibleGenericMappedSuperclassTest.java) at org.hibernate.orm.test.bytecode.enhance.internal.bytebuddy.MyNonVisibleGenericMappedSuperclass.setEmbedded(MyNonVisibleGenericMappedSuperclass.java:25) at org.hibernate.orm.test.bytecode.enhance.internal.bytebuddy.DirtyCheckingWithEmbeddableAndNonVisibleGenericMappedSuperclassTest$MyEntity.<init>(DirtyCheckingWithEmbeddableAndNonVisibleGenericMappedSuperclassTest.java:175) at org.hibernate.orm.test.bytecode.enhance.internal.bytebuddy.DirtyCheckingWithEmbeddableAndNonVisibleGenericMappedSuperclassTest.shouldCreateTheTracker(DirtyCheckingWithEmbeddableAndNonVisibleGenericMappedSuperclassTest.java:90) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56) Model: @Embeddable public class MyEmbeddable { @Column private String text; public MyEmbeddable() { } private MyEmbeddable(String text) { this.text = text; } public String getText() { return text; } public void setText(String text) { this.text = text; } } @Entity(name = "myentity") public class MyEntity extends MyNonVisibleGenericMappedSuperclass<MyEmbeddable> { @Id private Integer id; public MyEntity() { } private MyEntity(Integer id, String text) { this.id = id; setEmbedded( new MyEmbeddable( text ) ); } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } } // This class must not be nested in the test class, otherwise its private fields will be visible // from subclasses and we won't reproduce the bug. @MappedSuperclass public abstract class MyNonVisibleGenericMappedSuperclass<C> { @Embedded private C embedded; public C getEmbedded() { return embedded; } public void setEmbedded(C embedded) { this.embedded = embedded; } } The bug also affects @EmbeddedId , but that seems irrelevant. I will submit a PR with a reproducer ASAP. ( https://hibernate.atlassian.net/browse/HHH-16832#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16832#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#100227- sha1:28a616e )