LOL sounds like you fail your own interview
On Jun 1, 8:38 pm, leo <leo.kuznet...@gmail.com> wrote:
> I am trying to run following code on emulator (it's an interview
> puzzle with deliberate racing condition) and I observe all threads
> stuck on the first x++ and join() never executed.
>
> If I comment out x++ everything comes to completion...
>
> Is it something I do wrong or static access on dalvik-emulator is
> broken somehow?
> Should I file a bug?
>
> I have the latest sdk update for the time of writing:
>
> static {
> try {
> test();
> } catch (InterruptedException e) {
> throw new Error(e);
> }
> }
>
> static int x;
>
> public static void test() throws InterruptedException {
> Thread[] t = new Thread[5];
> for (int i = 0; i < 5; i++) {
> final int k = i;
> t[i] = new Thread() {
> public void run() {
> for (int j = 0; j < 5; j++) {
> x++;
> }
> System.out.println("done[" + k + "]");
> }
> };
> t[i].start();
> }
> for (int i = 0; i < 5; i++) {
> t[i].join();
> }
> System.out.println("x=" + x);
> }
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