Suggestion for a fast (and thread-safe) java FFT library

Started by Georg Holzmann June 21, 2010

I need to calculate FFTs in java on a server in multiple threads - and
the FFTs must be fast.
As a C-coder I tried the JNI interface to the FFTW3 library [1], which
works quite nice - however, unfortunately the plan generation of FFTW
is not threadsafe (see e.g. [2],[3],[4]).

Therefore my question: can some Java coder suggest me a fast, thread-
safe FFT library (with or without JNI) ?
There are so many libraries in the internet, but so far they were very
slow or unusable ...

I am happy for any hints !