FYI: Faster AccessController stack decoder

[Tom Tromey]

>>>>> "Gary" == Gary Benson <gbenson@redhat.com> writes:

Gary> This commit adds a custom stack
Gary> decoder that mirrors this logic such that only the frames which are
Gary> used will be decoded.  I've been using Tomcat as a benchmark, and this
Gary> commit improves our performance from 1800 to 2100 requests per
Gary> second.

Nice job.

Gary> Sadly this is nowhere near the 5800 we do without a security manager :/

Bleah.

Tom