black scholes - Is there an all Java options-pricing library (preferably open source) besides jquantlib?

I am looking for an all-java implementation of black scholes, preferably open source. I found jquantlib and quantlib (C++). Any other recommendations?

The jquantlib site seems to be down.

I'd prefer to stay away from a C++ implementation that runs on a jvm like quantlib seems to be. My team would like to look at the code if open source and none of us are C++ capable.