[hibernate-issues] [Hibernate-JIRA] Closed: (HHH-3351) Dynamic entity model and inheritance - exception when trying to persist

Dynamic entity model and inheritance - exception when trying to persist ----------------------------------------------------------------------- Key: HHH-3351 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3351 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.2.6 Reporter: Adam Warski Assignee: Steve Ebersole Fix For: 3.3.x, 3.4 I have two dynamic model entites mapped as follows: <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping> <class entity-name="Superclass" discriminator-value="A"> <id name="id" type="integer"><generator class="native"/></id> <discriminator column="DISC" type="string" /> <property name="dataA" type="string"/> <subclass entity-name="Subclass" discriminator-value="B"> <property name="dataB" type="string"/> </subclass> </class> </hibernate-mapping> When I try to persist one of them (just invoking session.persist("Superclass", new HashMap()); is enough) I get the following exception: Exception in thread "main" org.hibernate.HibernateException: instance not of expected entity type: java.util.HashMap is not a: Superclass at org.hibernate.persister.entity.AbstractEntityPersister.getSubclassEntityPersister(AbstractEntityPersister.java:3640) at org.jboss.envers.test.working.MyPersister.getSubclassEntityPersister(MyPersister.java:22) at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1347) at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:180) at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:512) at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:70) at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:38) at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:618) at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:592) at org.jboss.envers.test.working.WorkingMain.main(WorkingMain.java:62)