Can't use annotations to map nested Embeddables where the inner instance has a ManyToOne reference -------------------------------------------------------------------------------------------------- Key: HHH-7152 URL: https://hibernate.onjira.com/browse/HHH-7152 Project: Hibernate ORM Issue Type: Bug Components: annotations Affects Versions: 3.5.5 Environment: Hibernate 3.5.5, any database. Reporter: Chris L Attachments: NestedEmbeddableBug.zip Using annotations, we set up an Entity containing an ElementCollection, whose elements themselves contain an Embeddable, which has a ManyToOne reference to another Entity. When we use this set up to build the SessionFactory, it fails with an ArrayIndexOutOfBoundsException in the AbstractCollectionPersister. Exception is below, source code files are attached: Run View.main() to reproduce the issue. {{Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1 at org.hibernate.persister.collection.AbstractCollectionPersister.initCollectionPropertyMap(AbstractCollectionPersister.java:1736) at org.hibernate.persister.collection.AbstractCollectionPersister.initCollectionPropertyMap(AbstractCollectionPersister.java:1712) at org.hibernate.persister.collection.AbstractCollectionPersister.<init>(AbstractCollectionPersister.java:600) at org.hibernate.persister.collection.BasicCollectionPersister.<init>(BasicCollectionPersister.java:74) at org.hibernate.persister.PersisterFactory.createCollectionPersister(PersisterFactory.java:104) at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:318) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1385) at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:954) at com.rtrms.hibernate.View.main(View.java:46)}} -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira