void done(String message) {
if (!EventQueue.isDispatchThread()) {
throw new AssertionError("#done must be called from EDT");
}
if (isShowing()) { // otherwise skip udpate, dialog is closed
messageLabel.setText(message);
progressBar.setIndeterminate(false);
progressBar.getModel().setValue(progressBar.getModel().getMaximum());
outputArea.setEditable(false);
}
inputHandler.detach();
}
