Hi all, The line 118 of CGLIBLazyInitializer is: e.setSuperclass( interfaces.length == 1 ? persistentClass : null ); That means that, when a proxy="foo" is added on the hibernate configuration, the proxy generated do not anymore extends the concrete class. Is there a particular reason for this ? The reason I ask, is because in particular circumstances, I can have: session.createQuery("FROM Foo").list() returns a List of objects that are not of class Foo. I change the line in question with: e.setSuperclass(persistentClass) and I can use my proxy as well as the expected base class in my code, so I'd like to know why this is not the default comportment and what is the disadvantage to always have the proxy extends the base class. -- Benjamin LERMAN