Use with JDO

I’ve read about integration with Hibernate to allow components to reference persistent objects without having to serialize the entire object tree when the session gets serialized.

It is possible to use Vaadin with JDO also?

Is there any ‘out of the box’ support for using JDO as the back end persistence solution?

If not is it easy to build our own ‘vaadin persistence interfacy type thingy’ to allow us to use Vaadin with JDO?