ONLINE POKER - SITE - Party Poker

Here is a great example of the software being set up to raise the pots in a NL table. I caught 99 in the pocket/ The flop came J 9 5 / Obviously I played this hand quite aggressively being there were no straight or flush draws/ Me and another guy bet and raised all the way to the river/ He had JJ in the pocket making his set better! What are the odds of that happening.