[hibernate-issues] [JIRA] (HHH-15630) ElementCollection with nested Embeddable does not work

David Stutzman ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMDRiNmE3OWM2... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-15630?atlOrigin=eyJpIjoiMDRiNm... ) HHH-15630 ( https://hibernate.atlassian.net/browse/HHH-15630?atlOrigin=eyJpIjoiMDRiNm... ) ElementCollection with nested Embeddable does not work ( https://hibernate.atlassian.net/browse/HHH-15630?atlOrigin=eyJpIjoiMDRiNm... ) Issue Type: Bug Affects Versions: 5.6.12 Assignee: Unassigned Components: hibernate-core Created: 26/Oct/2022 02:56 AM Environment: JDK 17, Quarkus 2.13.3 Priority: Minor Reporter: David Stutzman ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) Information below should be the same as: https://discourse.hibernate.org/t/elementcollection-with-nested-embeddabl... ( https://discourse.hibernate.org/t/elementcollection-with-nested-embeddabl... ) This class hierarchy fails: @Entity public class Foo implements Serializable { @Id @GeneratedValue String id; @ElementCollection Set<Bar> bars; } @Embeddable public class Bar { @Embedded Baz baz; } @Embeddable class Baz { String property; } I get the error: 2022-10-25 16:01:06,124 ERROR [io.qua.run.Application] (Quarkus Main Thread) Failed to start application (with profile dev): java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at org.hibernate.persister.collection.AbstractCollectionPersister.generateSelectSizeString(AbstractCollectionPersister.java:1048) at org.hibernate.persister.collection.AbstractCollectionPersister.<init>(AbstractCollectionPersister.java:522) at org.hibernate.persister.collection.BasicCollectionPersister.<init>(BasicCollectionPersister.java:59) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480) at org.hibernate.persister.internal.PersisterFactoryImpl.createCollectionPersister(PersisterFactoryImpl.java:152) at org.hibernate.persister.internal.PersisterFactoryImpl.createCollectionPersister(PersisterFactoryImpl.java:140) at org.hibernate.metamodel.internal.MetamodelImpl.initialize(MetamodelImpl.java:226) at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:319) at io.quarkus.hibernate.orm.runtime.boot.FastBootEntityManagerFactoryBuilder.build(FastBootEntityManagerFactoryBuilder.java:74) at io.quarkus.hibernate.orm.runtime.FastBootHibernatePersistenceProvider.createEntityManagerFactory(FastBootHibernatePersistenceProvider.java:72) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:80) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55) at io.quarkus.hibernate.orm.runtime.JPAConfig$LazyPersistenceUnit.get(JPAConfig.java:165) at io.quarkus.hibernate.orm.runtime.JPAConfig$1.run(JPAConfig.java:66) at java.base/java.lang.Thread.run(Thread.java:833) I don’t know if it helps but earlier in the application log there’s this: 2022-10-25 16:01:05,544 DEBUG [org.hib.cfg.CollectionSecondPass] (Quarkus Main Thread) Second pass for collection: com.example.Foo.bars 2022-10-25 16:01:05,544 DEBUG [org.hib.cfg.ann.CollectionBinder] (Quarkus Main Thread) Binding a collection of element: com.example.Foo.bars 2022-10-25 16:01:05,547 DEBUG [org.hib.cfg.Ejb3Column] (Quarkus Main Thread) Binding column: Ejb3Column{table=org.hibernate.mapping.Table(Foo_bars), mappingColumn=baz, insertable=true, updatable=true, unique=false} 2022-10-25 16:01:05,547 DEBUG [org.hib.cfg.ann.PropertyBinder] (Quarkus Main Thread) Building property baz 2022-10-25 16:01:05,548 DEBUG [org.hib.map.PrimaryKey] (Quarkus Main Thread) Forcing column [foo_id] to be non-null as it is part of the primary key for table [foo_bars] 2022-10-25 16:01:05,548 DEBUG [org.hib.cfg.CollectionSecondPass] (Quarkus Main Thread) Mapped collection key: Foo_id, element: ( https://hibernate.atlassian.net/browse/HHH-15630#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-15630#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#100209- sha1:6031644 )