WTK 2.5 bug - jsr234, commit

Question

I was testing CommitControl.setDeferred(false) and noticed that this api doesn't make pending changes to the Spectator. Is this a bug? Is the Spectator not considered a 'control' of the GlobalManager? It is the only place to obtain the listener, and when deferred mode is true the changes to the listener do not have an immediate effect. If this is a bug, can we get a patch somewhere?
"The CommitControl affects the parameters for these controls on the GlobalManager and all the SoundSource3D objects.
public void setDeferred(boolean deferred)
When switching back from the deferred mode to the immediate mode (setDeferred(false)) all the pending parameters from the buffer are transmitted to the audio processing system automatically."
Thanks.

Answer 1

sound is to left of listener.
press 5 to turn on deferred mode
press 6 six times to move sound to the right
press 5 - should commit the changes, but audio still on the left
press 0 - changes are actually committed and sound is now heard from the right
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import javax.microedition.media.*;
import javax.microedition.media.control.*;
import javax.microedition.amms.*;
import javax.microedition.amms.control.*;
import javax.microedition.amms.control.audio3d.*;
import javax.microedition.amms.control.audioeffect.*;
public class MoveCommit extends MIDlet implements CommandListener {
private MainCanvas myCanvas;
private Display myDisplay;
     CommitControl com;
     LocationControl loc;
     SoundSource3D ss3d;
     Spectator man;
     Player p;
     static int FACTOR = 1000; //convert to mm
public MoveCommit() {
myCanvas = new MainCanvas();
myDisplay = Display.getDisplay(this);
     init();
public void startApp() throws MIDletStateChangeException {
myDisplay.setCurrent(myCanvas);
public void pauseApp() {
public void destroyApp(boolean unconditional) {
public void commandAction(Command c, Displayable s) {
myDisplay.setCurrent(myCanvas);      
myCanvas.repaint();
class MainCanvas extends Canvas
public void paint(Graphics g)
public void keyPressed (int key)
          int[] pos = loc.getCartesian();
          int x=pos[0] / FACTOR;
          int y=pos[1] / FACTOR;
          int z=pos[2] / FACTOR;
          if (key == Canvas.KEY_NUM5)
               if (com.isDeferred())
                    System.out.println("----automatically committing changes----");
                    com.setDeferred(false);
                    System.out.print("position now: ");
                    report();
                    System.out.println();
               else
                    com.setDeferred(true);
                    System.out.print("last known parameters: ");
                    report();
                    System.out.println();
          else if (key == Canvas.KEY_NUM0)
               System.out.println("--force commit--");
               com.commit(); //auto-commit may not be working in WTK2.5 Beta
               System.out.print("position now: ");
               report();
               System.out.println();
else
               moveXY(key,x,y,z);
          repaint();
} //end keypressed()
     void moveXY(int key, int x, int y, int z)
     if (key == Canvas.KEY_NUM1)
     {   //move
               loc.setCartesian((x-1)*FACTOR,(y+1)*FACTOR,z*FACTOR);
     else if (key == Canvas.KEY_NUM2)
     {   //move
               loc.setCartesian(x*FACTOR,(y+1)*FACTOR,z*FACTOR);
     else if (key == Canvas.KEY_NUM3)
     {   //move
               loc.setCartesian((x+1)*FACTOR,(y+1)*FACTOR,z*FACTOR);
     else if (key == Canvas.KEY_NUM4)
               loc.setCartesian((x-1)*FACTOR,y*FACTOR,z*FACTOR);
     else if (key == Canvas.KEY_NUM6)
     {   //move
               loc.setCartesian((x+1)*FACTOR,y*FACTOR,z*FACTOR);
     else if (key == Canvas.KEY_NUM7)
               loc.setCartesian((x-1)*FACTOR,(y-1)*FACTOR,z*FACTOR);
     else if (key == Canvas.KEY_NUM8)
     {   //move
               loc.setCartesian(x*FACTOR,(y-1)*FACTOR,z*FACTOR);
     else if (key == Canvas.KEY_NUM9)
     {   //move
               loc.setCartesian((x+1)*FACTOR,(y-1)*FACTOR,z*FACTOR);
     void report()
          int[] pos = loc.getCartesian();
          System.out.println( "X="+pos[0]/FACTOR+
" Y="+pos[1]/FACTOR+
" Z="+pos[2]/FACTOR);
     void init()
          try
               p = Manager.createPlayer(getClass().getResourceAsStream("helicopter.wav"), "audio/x-wav");
               p.realize();
               p.setLoopCount(-1); //loop forever
               ss3d = GlobalManager.createSoundSource3D();
               ss3d.addPlayer(p);
               p.start();
               loc = (LocationControl)ss3d.getControl("javax.microedition.amms.control.audio3d.LocationControl");
               com = (CommitControl)GlobalManager.getControl("javax.microedition.amms.control.audio3d.CommitControl");
               loc.setCartesian(-3*FACTOR,0,0); //place object to the left of the listener
               System.out.println("Initialized.");
               report();
          catch (Exception e) {System.out.println(e); }
} //end midlet