Marco Belladelli ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=637b480... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiYmUwYmIxOTky... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16355?atlOrigin=eyJpIjoiYmUwYm... ) HHH-16355 ( https://hibernate.atlassian.net/browse/HHH-16355?atlOrigin=eyJpIjoiYmUwYm... ) Map association with entity typed key breaks if mappedBy is specified ( https://hibernate.atlassian.net/browse/HHH-16355?atlOrigin=eyJpIjoiYmUwYm... ) Issue Type: Bug Affects Versions: 6.2.0.CR4 Assignee: Marco Belladelli ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=637b480... ) Created: 22/Mar/2023 08:39 AM Priority: Major Reporter: Marco Belladelli ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=637b480... ) In Hibernate 6.2 mapping a Map association with and entity typed key and mappedBy causes an error. Here is an example mapping: @Entity @Table( name = "map_container_entity" ) public static class MapContainerEntity { @Id private Long id; @OneToMany(mappedBy = "container" ) private Map<MapKeyEntity, MapValueEntity> map; } @Entity @Table( name = "map_key_entity" ) public static class MapKeyEntity { @Id private Long id; } @Entity @Table( name = "map_value_entity" ) public static class MapValueEntity { @Id private Long id; @ManyToOne private MapContainerEntity container; } And the error is: Caused by: org.hibernate.MappingException: property [container] not found on entity [com.blazebit.persistence.testsuite.AliasBasedMapKeyDereferencingTest$MapKeyEntity] at org.hibernate.mapping.PersistentClass.getRecursiveProperty(PersistentClass.java:570) at org.hibernate.boot.model.internal.CollectionBinder.bindUnownedManyToManyInverseForeignKey(CollectionBinder.java:2657) at org.hibernate.boot.model.internal.CollectionBinder.bindManyToManyInverseForeignKey(CollectionBinder.java:2619) at org.hibernate.boot.model.internal.MapBinder.handleMapKey(MapBinder.java:184) at org.hibernate.boot.model.internal.MapBinder.bindKeyFromAssociationTable(MapBinder.java:167) at org.hibernate.boot.model.internal.MapBinder$1.secondPass(MapBinder.java:95) at org.hibernate.boot.model.internal.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:45) at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1850) at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1807) at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:324) at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1380) at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1451) at org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManagerFactory(HibernatePersistenceProvider.java:142) at com.blazebit.persistence.testsuite.base.jpa.AbstractJpaPersistenceTest.createEntityManagerFactory(AbstractJpaPersistenceTest.java:848) ... 42 more Caused by: org.hibernate.MappingException: property [container] not found on entity [com.blazebit.persistence.testsuite.AliasBasedMapKeyDereferencingTest$MapKeyEntity] at org.hibernate.mapping.PersistentClass.getRecursiveProperty(PersistentClass.java:613) at org.hibernate.mapping.PersistentClass.getRecursiveProperty(PersistentClass.java:566) ... 55 more ( https://hibernate.atlassian.net/browse/HHH-16355#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16355#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#100219- sha1:eb3f1fe )