Was a TODO in FXRobot:


    // TODO: need to devise a cross implementation way of doing this
//    public function waitForFirstRepaint(timeout: Integer) : Void {
//        def latch : CountDownLatch = new CountDownLatch(1);
//        FX.deferAction(function(): Void {
//            var tracker = com.sun.javafx.perf.PerformanceTracker.getSceneTracker(target);
//            var f = tracker.onFirstPulse;
//            tracker.onFirstPulse = function():Void {
//                latch.countDown();
//                if (f != null) {
//                    tracker.onFirstPulse = f;
//                }
//            }
//        });
//        while (true) {
//            try {
//                latch.await(timeout, java.util.concurrent.TimeUnit.MILLISECONDS);
//                break;
//            } catch (e: java.lang.InterruptedException) {}
//        }
//    }