[Hibernate-issues] [Hibernate-JIRA] Created: (EJB-204) ClassCastException when using <mapped-superclass> in orm.xml

[Levi P. (JIRA) <no...@at...>]

ClassCastException when using <mapped-superclass> in orm.xml
------------------------------------------------------------

         Key: EJB-204
         URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-204
     Project: Hibernate Entity Manager
        Type: Bug

  Components: EntityManager  
    Versions: 3.2.0.cr1    
 Environment: Hibernate 3.2.0 cr2, EntityManager 3.2.0 cr1 and Annotations 3.2.0 cr1
    Reporter: Levi Purvis
    Priority: Minor


Using a <mapped-superclass> element in orm.xml will generate the following exception:

javax.persistence.PersistenceException: java.lang.ClassCastException: $Proxy0
	at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:217)
	at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:114)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:37)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:27)
	......
Caused by: java.lang.ClassCastException: $Proxy0
	at org.hibernate.reflection.java.EJB3OverridenAnnotationReader.getMappedSuperclass(EJB3OverridenAnnotationReader.java:1688)
	at org.hibernate.reflection.java.EJB3OverridenAnnotationReader.initAnnotations(EJB3OverridenAnnotationReader.java:285)
	at org.hibernate.reflection.java.EJB3OverridenAnnotationReader.isAnnotationPresent(EJB3OverridenAnnotationReader.java:257)
	at org.hibernate.reflection.java.JavaXAnnotatedElement.isAnnotationPresent(JavaXAnnotatedElement.java:40)
	at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:237)
	at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1034)
	at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1015)
	at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:154)
	at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:751)
	at org.hibernate.ejb.Ejb3Configuration.createFactory(Ejb3Configuration.java:151)
	at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:205)
	... 19 more


Also see the following thread:

http://forum.hibernate.org/viewtopic.php?t=960744


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