Beeper.java is a replacement for the failing System.out.prinln('\007'); it simply beeps, which is useful for debugging

Beeper.java

import javax.sound.midi.MidiChannel;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.Synthesizer;

public class Beeper {
  
    public static void main(String[] args) throws Exception {
        beep();
    }
  
    private static void beep() {
        try {
            Synthesizer synth = MidiSystem.getSynthesizer();
            synth.open();
            MidiChannel channels[] = synth.getChannels();
            channels[1].noteOn(64, 127);
            Thread.sleep(1000);
            channels[1].noteOff(64);
            synth.close();
        } catch (Exception exc) {
            exc.printStackTrace();
        }
    }
}