Ive just had it happen to me in the 9ball final, I was about to take my shot but the random shot penalty was taken at the same time as the last beep to signify the last second.

Admittedly I should have taken my shot sooner but I was in two minds as to what to do with it, my fault for being slow i guess

oh just in case they are needed..

Your java properties:
Java version: 1.6.0_18
Java vendor: Sun Microsystems Inc.
Operating system: Windows Vista
VERDICT: success

The beeps occur at 5,4,3,2,1 and at shot expiry time. If you take the shot on the last beep it would have been too late.

Hmmmm, what I think people are seeing (hearing) is a delay in the playing of the sounds. The sound code is the only area to have changed.

My experience was that, where I expected a beep (not the last one), the shot was taken instead, and then there were two sudden beeps.