Yes, I did create a ticket for it - I got it solved but it was eseentially just a very confusing error message.
It said Java Null Pointer Error!
But it was actually because I had configured a policy object without a snapvault policy, so it tried to do snapvault, because I had it configured to snapvault_update=yes, but the policy object was only LOCAL, not SNAPVAULT.
When I used a policy object with a SNAPVAULT type, then it ran perfectly.
Bottom line, use CMODE=Y and correct policy object, then its all good.
I do wish that was in a the manuals, there may be a description of all the parameters, but no guides to how to configure for example a configuration with snapshot and snapvault on a clustered ontap 8.3 filer.
Much wiser and with best regards,
Martin