SwingWorker: when exactly is called done method?

Question

Javadoc of the done() method of SwingWorker:

Executed on the Event Dispatch Thread after the doInBackground method is

Answer 1

done() is called in any case, wether the worker is cancelled or it finishes normally. Nevertheless there are cases where the doInBackground is still running and the done method is called already (this is done inside cancel() no matter if the thread already finished). A simple example can be found here:

public static void main(String[] args) throws AWTException {
    SwingWorker sw = new SwingWorker() {

        protected Void doInBackground() throws Exception {
            System.out.println("start");
            Thread.sleep(2000);
            System.out.println("end");
            return null;
        }

        protected void done() {
            System.out.println("done " + isCancelled());
        }
    };
    sw.execute();
    try {
        Thread.sleep(1000);
        sw.cancel(false);
        Thread.sleep(10000);
    } catch (InterruptedException ex) {
        ex.printStackTrace();
    }

Thus it can be the case that done is called before doInBackground finishes.