You can find it @ google code : https://code.google.com/p/mouse-gesture-recognition-java-hidden-markov-model/.
This svn repository @ google code contains eclipse source code (VQ and HMM codes from OCVolume Project.) , trained hmm models and codebook, captured data for few gestures.
Similar codes for Speech Recognition System using HMM/VQ + MFCC will be uploaded SOON.
DEMO VIDEO: http://www.youtube.com/watch?v=0CNJ2fCj4xQ