source: benchmark/mutex/JavaThread.java @ 17c6c1c3

public class JavaThread {
        public synchronized void noop() {}

        public static void main(String[] args) {
                int NoOfTimes = 5000000;
                JavaThread j = new JavaThread();
                long start = System.nanoTime();
                for(int i = 1; i <= NoOfTimes; i += 1) {
                        j.noop();
                }
                long end = System.nanoTime();
                System.out.println( (end - start) / NoOfTimes);
        }
}