[hibernate-issues] [Hibernate-JIRA] Created: (HHH-6639) Error using dynamic-component with JPA

[Wölfle (JIRA)]

Error using dynamic-component with JPA
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                 Key: HHH-6639
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6639
             Project: Hibernate Core
          Issue Type: Bug
    Affects Versions: 3.6.7
         Environment: MySQL 5.0.1, Java 1.6.0_26
            Reporter: Wölfle
         Attachments: testJPA.tar.gz

Hi,

there seems to be a bug when using dynamic-components and an EntityManager.

When using hibernate directly, everything works fine. If using the EntityManager, the following exception is thrown, because for the dynamic attributes no members in the Entity class exist (which is the intention of dynamic-attributes, as far as I understood them).

Exception in thread "main" java.lang.IllegalArgumentException: Cannot determine java-type from given member [null]
at org.hibernate.ejb.metamodel.AttributeFactory$BaseAttributeMetadata.<init>(AttributeFactory.java:608)
at org.hibernate.ejb.metamodel.AttributeFactory$SingularAttributeMetadataImpl.<init>(AttributeFactory.java:696)
at org.hibernate.ejb.metamodel.AttributeFactory$SingularAttributeMetadataImpl.<init>(AttributeFactory.java:686)
at org.hibernate.ejb.metamodel.AttributeFactory.determineAttributeMetadata(AttributeFactory.java:559)
at org.hibernate.ejb.metamodel.AttributeFactory.buildAttribute(AttributeFactory.java:93)
at org.hibernate.ejb.metamodel.AttributeFactory.getMetaModelType(AttributeFactory.java:225)
at org.hibernate.ejb.metamodel.AttributeFactory.buildAttribute(AttributeFactory.java:102)
at org.hibernate.ejb.metamodel.MetadataContext.wrapUp(MetadataContext.java:187)
at org.hibernate.ejb.metamodel.MetamodelImpl.buildMetamodel(MetamodelImpl.java:66)
at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:84)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:906)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:32)
at test.Test.main(Test.java:24)

Attached is a tar.tz file with a sample hibernate project and a junit test that reproduces the problem.


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