[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5304) Deploying Hibernate 3.5 in isolated classloader in AS 5.1 fails

Deploying Hibernate 3.5 in isolated classloader in AS 5.1 fails --------------------------------------------------------------- Key: HHH-5304 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5304 Project: Hibernate Core Issue Type: Bug Affects Versions: 3.5.2 Reporter: Galder Zamarreno Assignee: Steve Ebersole Deploying Hibernate 3.5 within an isolated deployment in AS 5.1, where Hibernate 3.3 or 3.4 runs, fails with: 3:29:34,255 INFO [PersistenceUnitDeployment] Starting persistence unit persistence.unit:unitName=InfiniSeam-ear.ear/InfiniSeam-ejb.jar#InfiniSeam 13:29:34,305 ERROR [AbstractKernelController] Error installing to Start: name=persistence.unit:unitName=InfiniSeam-ear.ear/InfiniSeam-ejb.jar#InfiniSeam state=Create java.lang.ClassCastException: org.hibernate.ejb.HibernatePersistence cannot be cast to javax.persistence.spi.PersistenceProvider Taking in account that org.hibernate.ejb.HibernatePersistence extends javax.persistence.spi.PersistenceProvider, this would appear to be an issue of the first class being loaded with a CL and the second one with a different one. Since org.hibernate.ejb.HibernatePersistence is something that's defined in the persistence.xml, there might be a change that this class is loaded from the wrong place rather than the .ear file (This is just a hunch though): <provider>org.hibernate.ejb.HibernatePersistence</provider>