Who is first?

WhosFirst.java

package org.teckhooi.foo;

import java.util.Objects;

public class WhosFirst {
    static private Long t1 = null;
    static private Long t2 = null;
    static private Object lock = new Object();
    static private long startMillis = 0;

    public static void main(String[] args) throws Exception {
        startMillis = System.currentTimeMillis();

        Thread first = new Thread(() -> {
            System.out.printf("Runner1 starts.. %s\n", Thread.currentThread().getName());
            try {
                Thread.sleep(1100);
            } catch (Exception e) {
                e.printStackTrace();
            }
            t1 = System.currentTimeMillis() - startMillis;
            System.out.printf("Runner1 on %s wins after %dms\n", Thread.currentThread().getName(), t1);
            synchronized (lock) {
                lock.notify();
            }
        });

        Thread second = new Thread(() -> {
            System.out.printf("Runner2 starts.. %s\n", Thread.currentThread().getName());
            try {
                Thread.sleep(1000);
            } catch (Exception e) {
                e.printStackTrace();
            }
            t2 = System.currentTimeMillis() - startMillis;
            System.out.printf("Runner2 on %s wins after %dms\n", Thread.currentThread().getName(), t2);
            synchronized (lock) {
                lock.notify();
            }
        });

        first.setDaemon(true);
        second.setDaemon(true);
        first.start();
        second.start();

        synchronized (lock) {
            lock.wait();
        }
        System.out.printf("Done... t1=%d, t2=%d\n", t1, t2);
    }
}