Benchmark native JPA of Versant database (without datanucleous)

Now Versant DB (db4o commercial) has JPA implementation

   Can you benchmark this Object Oriented DB to compare with Object DB?

Since the Versant Object Database (unlike db4o) is not open source it would be impossible to include it in the JPAB benchmark results without the consent of Versant Corporation.

But please notice that the JPAB benchmark is open source, so you can also run it yourself with any JPA implementation that you are interested in.