Q:

How play sound in java without plugins

I was reading into java3d and other java library's, and found many classes that are named in a way you could assume that they are used to have sound, however I have yet to find any tutorials on it and every experiment I have tried has failed.  How does one go about in using these classes? 
javax.media.j3d. AudioDevice;
javax.media.j3d. Sound;
 and so on and so forth. 
import java.awt.*; 
import java.awt.event. ActionEvent;
import java.awt.event. ActionListener;

import javax.media.j3d.*; 
import javax.vecmath.*; 

import com.sun.j3d.audioengines.javasound. JavaSoundMixer;
import com.sun.j3d.utils.behaviors.keyboard. KeyNavigatorBehavior;
import com.sun.j3d.utils.geometry. Box;

public class JavaSound extends Frame implements ActionListener
 {
protected Canvas3D myCanvas3D = new Canvas3D(null);

/** The exit button to quit the application */

protected Button exitButton = new Button("Exit");

/** The button to switch on and off the first sound */

protected Button sound1Button = new Button("Sound 1");

/** The button to switch on and off the second sound */

protected Button sound2Button = new Button("Sound 2");

protected BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 10000.0);
// Create the two point sounds

PointSound sound1 = new PointSound();

PointSound sound2 = new PointSound();

/**
 * Build the view branch of the scene graph.  In this case a key navigation
 * utility object is created and associated with the view transform so that
 * the view can be changed via the keyboard. 
 * @return BranchGroup that is the root of the view branch
 */
protected BranchGroup buildViewBranch(Canvas3D c)
{
    BranchGroup viewBranch = new BranchGroup();

    Transform3D viewXfm = new Transform3D();

    viewXfm.set(new Vector3f(0.0f, 0.0f, 30.0f));

    TransformGroup viewXfmGroup = new TransformGroup(viewXfm);

    viewXfmGroup.setCapability(TransformGroup. ALLOW_TRANSFORM_READ);

    viewXfmGroup.setCapability(TransformGroup. ALLOW_TRANSFORM_WRITE);

    ViewPlatform myViewPlatform = new ViewPlatform();

    BoundingSphere movingBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
    BoundingLeaf boundLeaf = new BoundingLeaf(movingBounds);

    PhysicalBody myBody = new PhysicalBody();

    PhysicalEnvironment myEnvironment = new PhysicalEnvironment();

    viewXfmGroup.addChild(myViewPlatform);

    viewBranch.addChild(viewXfmGroup);

    View myView = new View();

    myView.addCanvas3D(c);

    myView.attachViewPlatform(myViewPlatform);

    myView.setPhysicalBody(myBody);

    myView.setPhysicalEnvironment(myEnvironment);

    KeyNavigatorBehavior keyNav = new KeyNavigatorBehavior(viewXfmGroup);

    keyNav.setSchedulingBounds(movingBounds);

    viewBranch.addChild(keyNav);

    // Create a sounds mixer to use our sounds with

    // and initialise it

    JavaSoundMixer myMixer = new JavaSoundMixer(myEnvironment);

    myMixer.initialize();

    return viewBranch;

}

protected void addLights(BranchGroup b)
{
    Color3f ambLightColour = new Color3f(0.5f, 0.5f, 0.5f);
    AmbientLight ambLight = new AmbientLight(ambLightColour);
    ambLight.setInfluencingBounds(bounds);
    Color3f dirLightColour = new Color3f(1.0f, 1.0f, 1.0f);
    Vector3f dirLightDir = new Vector3f(-1.0f, -1.0f, -1.0f);
    DirectionalLight dirLight = new DirectionalLight(dirLightColour, dirLightDir);
    dirLight.setInfluencingBounds(bounds);
    b.addChild(ambLight);
    b.addChild(dirLight);
}

protected void addBackgroundSound(BranchGroup b, String soundFile)
{
    // Create a media container to load the file
    MediaContainer droneContainer = new MediaContainer(soundFile);
    // Create the background sound from the media container
    BackgroundSound drone = new BackgroundSound(droneContainer, 1.0f);
    // Activate the sound
    drone.setSchedulingBounds(bounds);
    drone.setEnable(true);
    // Set the sound to loop forever
    drone.setLoop(BackgroundSound. INFINITE_LOOPS);
    // Add it to the group
    b.addChild(drone);
}

protected void addObjectSound(TransformGroup tg, PointSound sound, String soundFile, float edge)
{
    // First we get the current transform so that we can
    // position the sound in the same place
    Transform3D objXfm = new Transform3D();
    Vector3f objPosition = new Vector3f();
    tg.getTransform(objXfm);
    objXfm.get(objPosition);
    // Create the media container to load the sound
    MediaContainer soundContainer = new MediaContainer(soundFile);
    // Use the loaded data in the sound
    sound.setSoundData(soundContainer);
    sound.setInitialGain(1.0f);
    // Set the position to that of the given transform
    sound.setPosition(new Point3f(objPosition));
    // Allow use to switch the sound on and off
    sound.setCapability(PointSound. ALLOW_ENABLE_READ);
    sound.setCapability(PointSound. ALLOW_ENABLE_WRITE);
    sound.setSchedulingBounds(bounds);
    // Set it off to start with
    sound.setEnable(false);
    // Set it to loop forever
    sound.setLoop(BackgroundSound. INFINITE_LOOPS);
    // Use the edge value to set to extent of the sound
    Point2f[] attenuation = { new Point2f(0.0f, 1.0f), new Point2f(edge, 0.1f) };
    sound.setDistanceGain(attenuation);
    // Add the sound to the transform group
    tg.addChild(sound);
}

protected BranchGroup buildContentBranch()
{
    // Create the appearance
    Appearance app = new Appearance();
    Color3f ambientColour = new Color3f(1.0f, 0.0f, 0.0f);
    Color3f emissiveColour = new Color3f(0.0f, 0.0f, 0.0f);
    Color3f specularColour = new Color3f(1.0f, 1.0f, 1.0f);
    Color3f diffuseColour = new Color3f(1.0f, 0.0f, 0.0f);
    float shininess = 20.0f;
    app.setMaterial(new Material(ambientColour, emissiveColour, diffuseColour, specularColour, shininess));
    // Make the cube
    Box myCube = new Box(1.0f, 1.0f, 1.0f, app);
    TransformGroup cubeGroup = new TransformGroup();
    BranchGroup contentBranch = new BranchGroup();
    addLights(contentBranch);
    addObjectSound(cubeGroup, sound1, new String("C:\\Users\\Sawyera\\Desktop\\loop1.wav"), 10.0f);
    addObjectSound(cubeGroup, sound2, new String("C:\\Users\\Sawyera\\Desktop\\loop2.wav"), 20.0f);
    addBackgroundSound(contentBranch, new         String("C:\\Users\\Sawyera\\Desktop\\loop3.wav"));
    cubeGroup.addChild(myCube);
    contentBranch.addChild(cubeGroup);
    return contentBranch;
}

public void actionPerformed(ActionEvent e)
{
    if (e.getSource() == exitButton)
    {
        dispose();
        System.exit(0);
    }
    else if (e.getSource() == sound1Button)
    {
        if (sound1.getEnable())
            sound1.setEnable(false);
        else
            sound1.setEnable(true);
    }
    else if (e.getSource() == sound2Button)
    {
        sound2.setEnable(!sound2.getEnable());
    }
}

public JavaSound()
{
    VirtualUniverse myUniverse = new VirtualUniverse();
    Locale myLocale = new Locale(myUniverse);
    // buildUniverse(myCanvas3D);
    myLocale.addBranchGraph(buildContentBranch());
    myLocale.addBranchGraph(buildViewBranch(myCanvas3D));
    setTitle("SimpleSounds");
    setSize(400, 400);
    setLayout(new BorderLayout());
    Panel bottom = new Panel();
    bottom.add(sound1Button);
    bottom.add(sound2Button);
    bottom.add(exitButton);
    add(BorderLayout. CENTER, myCanvas3D);
    add(BorderLayout. SOUTH, bottom);
    exitButton.addActionListener(this);
    sound1Button.addActionListener(this);
    sound2Button.addActionListener(this);
    setVisible(true);
}

public static void main(String[] args)
{
    JavaSound sw = new JavaSound();
}
}

A:

As per the Javadoc:
"graphicsConfiguration - a valid GraphicsConfiguration object that will be used to create the canvas.  This object should not be null..." javax.media.j3d. Canvas3D
You initalise it as null:
protected Canvas3D myCanvas3D = new Canvas3D(null);

Here's the initialisation used in a tutorial:
GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
Canvas3D canvas3D = new Canvas3D(config);

