...-abnormal: A small JNI library to enable floating point 'flush-to-zero' mode to avoid denormal floats for improved performance (currently Windows-only).
On desktop, it supports MIDI, JavaSound and ASIO.
ASIO is highly recommended for low-latency audio (install the great ASIO4ALL driver!).
Includes a number of good-sounding example patches for various synthesizer sounds and audio effects to get you started.