java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.TypeVariableImpl cannot be cast to java.lang.Class

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    Root Cause Analysis

    1. java.lang.ClassCastException

      sun.reflect.generics.reflectiveObjects.TypeVariableImpl cannot be cast to java.lang.Class

      at oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.objects.MetadataAccessibleObject.getRawClass()
    2. oracle.toplink.essentials
      EntityManagerSetupImpl.predeploy
      1. oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.objects.MetadataAccessibleObject.getRawClass(MetadataAccessibleObject.java:120)
      2. oracle.toplink.essentials.internal.ejb.cmp3.metadata.MetadataHelper.isEmbedded(MetadataHelper.java:732)
      3. oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.ClassAccessor.buildAccessor(ClassAccessor.java:193)
      4. oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.ClassAccessor.processAccessorFields(ClassAccessor.java:541)
      5. oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.ClassAccessor.processAccessors(ClassAccessor.java:567)
      6. oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.ClassAccessor.processMappedSuperclass(ClassAccessor.java:1128)
      7. oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.MappedSuperclassAccessor.process(MappedSuperclassAccessor.java:63)
      8. oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.ClassAccessor.processMappedSuperclasses(ClassAccessor.java:1138)
      9. oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.ClassAccessor.process(ClassAccessor.java:495)
      10. oracle.toplink.essentials.internal.ejb.cmp3.metadata.MetadataProcessor.processAnnotations(MetadataProcessor.java:240)
      11. oracle.toplink.essentials.ejb.cmp3.persistence.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:370)
      12. oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:607)
      12 frames