[LAU] java sound program no jack

[njcross]

I would really like to record the output of a java program, which isn't jackd. 
I've got jjack up and running, sort of, but there's no way I can try to sort 
out if, or how I could make this java program jjack aware. (maybe wrap jar 
file? er, way too few brain cells for this). So, how can I simply record the 
sound output of this program? jackasyn doesn't work. There must be a program 
on linux that simply records anything that hits the dac into a sound file ?