Break out the popcorn
Every single case which has hit german courts has found in favour of the GPL. I don't see it being any different this time.
It's notable that VMware are trying a slightly different tactic than the thoroughly discredited "Open source == Public domain == non copyrightable" defences that various outfits have tried in the past, but the fact remains that if they didn't write the code in question, they get to use it in ways the author authorises, or not at all.
German judges are not stupid, even if VMWare seems to think they are.