My attempt at SleepSort in Java. See http://dis.4chan.org/read/prog/1295544154 for original implementation in bash.

SleepSort.java

public class SleepSort {
	private static Thread f(final int value) {
		return new Thread(new Runnable() {
			@Override
			public void run() {
				try {
					Thread.sleep(value);
				} catch (InterruptedException e) {
				}
				System.out.println(value);
			}
		});
	}

	public static void main(String[] args) {
		for (String value : args) {
			f(Integer.parseInt(value)).start();
		}
	}
}

$ java SleepSort 3 8 1 6 2 4 6 4
1
2
3
4
4
6
6
8

Heh, nice job. :)