Hi,
just to let you know:
I needed Http client Digest authentication for my Glassfish 4 app. I
could not find any auth filter for it, so I wrote my own.
I works fine for me, it may need further testing. Feel free to try
evaluate it and possibly integrate it with the distribution.
Code can be found here:
http://katerkamp.de/software/jersey/
BR
Stefan Katerkamp