[Demonstration 1]

[Buggy Method]
public void start() {
    try {
        if (!clip.isActive() || clip.isRunning()) {
            clip.loop(Clip.LOOP_CONTINUOUSLY);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

[Buggy Hunk]
if (!clip.isActive() || clip.isRunning()) {

[Patch]
if (!clip.isActive()) {

[Demonstration 2]

[Buggy Method]
@Override
public void attackEntityWithRangedAttack(EntityLivingBase target, float distance) {
    EntityThrownRustPowder entity = new EntityThrownRustPowder(this.worldObj, this);
    double dx = target.posX - this.posX;
    double dy = target.posY + target.getEyeHeight() - 1.1d - entity.posY;
    double dz = target.posZ - this.posZ;
    float f = MathHelper.sqrt_double(dx * dx + dz * dz) * 0.2f;
    entity.setThrowableHeading(dx, dy + f, dz, 1.6f, 12f);
    this.playSound(IronRustMod.SOUND_ENTITY_RUSTPOWDER_THROW, 1f, 1f / (this.getRNG().nextFloat() * 0.4f + 0.8f));
    this.worldObj.spawnEntityInWorld(entity);
}

[Buggy Hunk]
this.playSound(IronRustMod.SOUND_ENTITY_RUSTPOWDER_THROW, 1f,

[Patch]
this.playSound(SoundEvent.REGISTRY.getObject(IronRustMod.SOUND_ENTITY_RUSTPOWDER_THROW), 1f,

[Demonstration 3]

[Buggy Method]
public static Sound loadSound(String name, String file) {
    try {
        AudioInputStream in = AudioSystem.getAudioInputStream(new File(file));
        Clip sound = AudioSystem.getClip();
        sound.open(in);
        clips.put(name, sound);
    } catch (UnsupportedAudioFileException e) {
        System.out.println("Unsupported sound file: " + file);
    } catch (IOException e) {
        System.out.println("Could not read sound file: " + file);
    } catch (LineUnavailableException e) {
        System.out.println("Could not create new audio line");
    }
    return new Sound(name);
}

[Buggy Hunk]
Clip sound = AudioSystem.getClip();

[Patch]
Clip sound = AudioSystem.getClip(null);