Timer Problem

Okay, one more test. This one opens a GUI window which you can minimize. The upper counter is scheduled using "schedule" (which we currently use in FRD) while the lower counter is scheduled using "scheduleFixedRate". Please see if either of these values drifts when "app nap" is enabled.

Language: Java
import javax.swing.*;
import java.awt.*;
import java.util.Timer;
import java.util.TimerTask;
 
public class SleepTest3 extends TimerTask {
    private JLabel label;
 
    public static void main(final String[] args) {
        SwingUtilities.invokeLater(new SleepTest3());
    }
 
    @Override
    public void run() {
        if (label == null) {
            init();
            return;
        }
        if (SwingUtilities.isEventDispatchThread()) {
            final int num = Integer.parseInt(label.getText());
            label.setText(Integer.toString(num + 1));
        } else {
            SwingUtilities.invokeLater(this);
        }
    }
 
    private void init() {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (final Exception e) {
            e.printStackTrace();
        }
        final JFrame frame = new JFrame("Sleep test");
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.setLayout(new GridBagLayout());
        final JLabel counter = new JLabel("0");
        final JLabel counterFixedRate = new JLabel("0");
        final Font font = counter.getFont().deriveFont(20F);
        counter.setFont(font);
        counterFixedRate.setFont(font);
        final GridBagConstraints gbc = new GridBagConstraints();
        gbc.gridy = 1;
        frame.add(counter, gbc);
        gbc.gridy = 2;
        frame.add(counterFixedRate, gbc);
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
 
        final Timer timer = new Timer();
        final SleepTest3 test = new SleepTest3();
        test.label = counter;
        timer.schedule(test, 0, 1000);
        final SleepTest3 testFixedRate = new SleepTest3();
        testFixedRate.label = counterFixedRate;
        timer.scheduleAtFixedRate(testFixedRate, 0, 1000);
    }
}