Could be. I just play what NetFlix sends me.
It might also be that I am succeeding because I am "not" using an actual "player", but a real Windows PC running software to play BRD's. Perhaps the folks who programmed that software know of the "java idiosyncrasy", and programmed around it. Certainly software packages are upgraded far more frequently than BRD player firmware.
I'll have to watch and take notes to see if I can tell which it is. Is there a way to specifically identify a disc as BR-J (trademark on disc, for instance)? If that question is answered at your link, then my apologies in advance, as I haven't yet read your link's info.
As far as I know, there is no way to identify a disk as BD-J or not. They are not stamped as such. It is quite frustrating. I rarely watch a movie straight through in one sitting. Sometimes I will watch one over 2 or 3 days. I hate to sit through previews and titles and warnings again and again. And then FF to try to find where I left off last time. For this reason, I have given up on blu-ray and just play my DVDs (or use Netflix streaming play).