[hibernate-issues] [Hibernate-JIRA] Created: (HHH-2437) SessionFactoryImpl.getClassMetadata method is not supported CGLib enhanced classes

[Alexey Kakunin (JIRA)]

SessionFactoryImpl.getClassMetadata method is not supported CGLib enhanced classes
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         Key: HHH-2437
         URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2437
     Project: Hibernate3
        Type: Bug

  Components: core  
    Versions: 3.2.1, 3.2.2    
    Reporter: Alexey Kakunin


In some cases Hibernate may returns classes, enhanced by CGLib. But if then we will try to get Class MetaData for such classes - it will be failed. For example:

Object obj = getObjectFrom Hibernate(); //here CGLib enhanced object is returned
ClassMetaData metaData = sessionFactory.getClassMetaData(obj.getClass());

//even we just get class from hibernate and it's class supported by Hibernate - we will get here NULL.

Simple Solution is to check before getting name from class:

	public ClassMetadata getClassMetadata(Class persistentClass) throws HibernateException {
                Class fixedClass = persistentClass;
		if (net.sf.cglib.proxy.Enhancer.isEnhanced(persistentClass)) {
			// try to get class itself
			fixedClass = valueClass.getSuperclass();
		}

		return getClassMetadata( fixedClass.getName() );
	}

but not sure it is really correct fix

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