Bivariate Kernel Density Estimator in Java

I'm writing some software 开发者_如何转开发in which I need to compute bivariate densities of an x-y grid. Are there any libraries that might help me in Java for this? I've seen a lot of stuff in R, but nothing in Java.

This seems to be what you want: http://code.google.com/p/beast-mcmc/source/browse/trunk/src/dr/geo/KernelDensityEstimator2D.java