jsass use an JNI adapter written in C to bind libsass to java. You can find the sources in our repository .

Binaries are generally provided for Linux x86_64, Mac OS X and Windows 64bit. If binaries are missing they where deleted due to changes on the jni code. Feel free to rebuild them an make a PR with the new binaries. You can use one of our bin/make-* scripts to build the binaries.