Why does System.exit(1) get WA instead of Crash?

I want to get CRASH on Timus in run() function, how can i do this?

public class Main implements Runnable {
....public void run() {
........throw new RuntimeException();
....}
....public static void main(String[] args) {
........new Thread(new Main()).start();
....}
}

This code gets WA instead of Crash!


Edited by author 15.04.2010 03:34

I didn't check it, but something like this should cause CRASH:

int[] a = new int[10];
System.out.println(a[20]);

or...

System.out.println(1/0);

no, it didn't help

Yes, it gets WA... But why? Can anybody explain me?