[hibernate-issues] [Hibernate-JIRA] Created: (EJB-339) Duplicate Loading of META-INF/orm.xml if specified in perstistence.xml

[Mirko Novakovic (JIRA)]

Duplicate Loading of META-INF/orm.xml if specified in perstistence.xml
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                 Key: EJB-339
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-339
             Project: Hibernate Entity Manager
          Issue Type: Bug
          Components: EntityManager
    Affects Versions: 3.3.1.GA
         Environment: JBoss 4.2.2.GA
Sun Java 6
            Reporter: Mirko Novakovic
            Priority: Minor


I had specified <mapping-file>/META-INF/orm.xml</mapping-file> in my persistence.xml to load the standard orm.xml, which included some named queries. When deploying and starting the application in JBoss, I get the following exception:

org.hibernate.DuplicateMappingException: Duplicate query mapping

After removing the <mapping-file>/META-INF/orm.xml</mapping-file> from my perstistence.xml, the application works fine. 

It seems that the EntityManager loads the default META-INF/orm.xml and the one specified in the persistence.xml, even if they are the same. This is not a big issue, but took me some time to find it out and I think it would be better to log a warning in this case or just ignore duplications.


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