JMF, OutOfMemory... (Urgent)

Question

Hello, friends...
Now, we are trying to develop media player using JMF.
Our MDI application does play a local media file and RTP play with data sources on the network, by using JIntenalFrame.
Then, out problem is that, "any player or any processor allocate its memory when it started, but it could not deallocate after play has done and its JInternalFrame has been disposed.".
I test if it retains any references, but I couldn't.
I give you some information.
- OS : Windows Advanced Server 2000.
- JMF 2.1.1
- Visual Components are based on Swing.
- Watch a performence chart on Window or your machine dependent agent.
- Tests using MDI solution from Sun.
Thanks, hope in advance...
Here is code.
1. MDI Panel and Frame Source. <code>
- excuse on removing comments about rights agreement.
import javax.media.*;
import com.sun.media.ui.*;
import javax.media.protocol.*;
import javax.media.protocol.DataSource;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import java.util.Vector;
import javax.swing.plaf.metal.*;
public class MDIApp extends JPanel implements ActionListener {
static void Fatal(String s) {
          MessageBox mb = new MessageBox("JMF Error", s);
* VARIABLES
JMFrame jmframe = null;
JDesktopPane desktop;
FileDialog fd = null;
// Player player = null;
// Player newPlayer = null;
String filename;
* METHODS
JFrame frame;
     public MDIApp( JFrame _owner ) {
          frame = _owner;
          frame.setTitle("Java Media Player");
          // Add the desktop pane
          setLayout( new BorderLayout() );
          desktop = new JDesktopPane();
          desktop.setDoubleBuffered(true);
          add(desktop, BorderLayout.CENTER);
          setSize(640, 480);
          setVisible(true);
          frame.addWindowListener( new WindowAdapter() {
               public void windowClosing(WindowEvent we) {
                    System.exit(0);
          Manager.setHint(Manager.LIGHTWEIGHT_RENDERER, new Boolean(true));
     public void actionPerformed ( ActionEvent e ) {
          String command = e.getActionCommand();
          if (command.equals("Open")) {
               if (fd == null) {
                    fd = new FileDialog( frame, "Open File", FileDialog.LOAD);
                    fd.setDirectory("/movies");
               fd.show();
               if (fd.getFile() != null) {
                    String filename = fd.getDirectory() + fd.getFile();
                    openFile("file:" + filename);
          } else if (command.equals("Exit")) {
               System.exit(0);
* Open a media file.
public void openFile(String filename) {
          String mediaFile = filename;
          Player player = null;
          // URL for our media file
          URL url = null;
          try {
               // Create an url from the file name and the url to the
               // document containing this applet.
               if ((url = new URL(mediaFile)) == null) {
                    Fatal("Can't build URL for " + mediaFile);
                    return;
               // Create an instance of a player for this media
               try {
                    player = Manager.createPlayer(url);
               } catch (NoPlayerException e) {
                    Fatal("Error: " + e);
          } catch (MalformedURLException e) {
               Fatal("Error:" + e);
          } catch (IOException e) {
               Fatal("Error:" + e);
          if (player != null) {
               this.filename = filename;
               JMFrame jmframe = new JMFrame(player, filename);
               desktop.add(jmframe);
     * MAIN PROGRAM / STATIC METHODS
     public static void main(String args[]) {
          JFrame ff = new JFrame();
          MDIApp mdi = new MDIApp( ff );
          MenuItem item;
          MenuBar mb = new MenuBar();
          // File Menu
          Menu mnFile = new Menu("File");
          mnFile.add(item = new MenuItem("Open"));
          item.addActionListener( mdi );
          mnFile.add(item = new MenuItem("Exit"));
          item.addActionListener( mdi );
          // Options Menu     
          Menu mnOptions = new Menu("Options");
          CheckboxMenuItem cbAutoLoop = null;
          cbAutoLoop = new CheckboxMenuItem("Auto replay");
          cbAutoLoop.setState(true);
          mnOptions.add(cbAutoLoop);
          mb.add(mnFile);
          mb.add(mnOptions);
          ff.getContentPane().add( mdi );
          ff.setMenuBar( mb );
          ff.show();
2. JMFrame: JInternalFrame Source with Player. <code>
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import java.util.Vector;
import javax.media.*;
import javax.media.protocol.*;
import javax.media.protocol.DataSource;
import javax.swing.*;
import javax.swing.event.*;
import com.sun.media.ui.*;
public class JMFrame extends JInternalFrame implements ControllerListener {
     Player mplayer;
     Component visual = null;
     Component control = null;
     int videoWidth = 0;
     int videoHeight = 0;
     int controlHeight = 30;
     int insetWidth = 10;
     int insetHeight = 30;
     boolean firstTime = true;
     public JMFrame(Player player, String title) {
          super(title, true, true, true, true);
          getContentPane().setLayout( new BorderLayout() );
          setSize(320, 10);
          setLocation(50, 50);
          setVisible(true);
          mplayer = player;
          mplayer.addControllerListener((ControllerListener) this);
          mplayer.realize();
          addInternalFrameListener( new InternalFrameAdapter() {
               public void internalFrameClosing(InternalFrameEvent ife) {
                    mplayer.stop();
                    mplayer.deallocate();
                    mplayer.close();
//                    visual.dispose();
//                    control.dispose();
     public void controllerUpdate(ControllerEvent ce) {
          if (ce instanceof RealizeCompleteEvent) {
               mplayer.prefetch();
          } else if (ce instanceof PrefetchCompleteEvent) {
               if (visual != null) return;
               if ((visual = mplayer.getVisualComponent()) != null) {
                    Dimension size = visual.getPreferredSize();
                    videoWidth = size.width;
                    videoHeight = size.height;
                    getContentPane().add("Center", visual);
               } else videoWidth = 320;
               if ((control = mplayer.getControlPanelComponent()) != null) {
                    controlHeight = control.getPreferredSize().height;
                    getContentPane().add("South", control);
               setSize(videoWidth + insetWidth,
               videoHeight + controlHeight + insetHeight);
               validate();
               mplayer.start();
          } else if (ce instanceof EndOfMediaEvent) {
               mplayer.setMediaTime(new Time(0));
               mplayer.start();
}

Answer 1

"Additional Information : Tracking with calls, System.gc(), after every step"
%> java -mx128m -ms128m MDIApp
STEP 1 [READY]
TotalMemory(133,234KB) FreeMem(131,310Kb) MaxMem(201,326Kb)
STEP 2 [Request Realize]
TotalMemory(133,234KB) FreeMem(131,306Kb) MaxMem(201,326Kb)
STEP 3 [Realized]
TotalMemory(133,234KB) FreeMem(94,678Kb) MaxMem(201,326Kb)
STEP 4 [Request Prefetch]
TotalMemory(133,234KB) FreeMem(99,880Kb) MaxMem(201,326Kb)
STEP 5 [Prefetched]
TotalMemory(133,234KB) FreeMem(98,659Kb) MaxMem(201,326Kb)
STEP 6 [Visual Component was contructed]
TotalMemory(133,234KB) FreeMem(98,377Kb) MaxMem(201,326Kb)
STEP 7 [Player Started]
TotalMemory(133,234KB) FreeMem(98,376Kb) MaxMem(201,326Kb)
STEP 9 [Before Close]
TotalMemory(133,234KB) FreeMem(91,204Kb) MaxMem(201,326Kb)
[After Close]
TotalMemory(133,234KB) FreeMem(92,153Kb) MaxMem(201,326Kb)
// Play another movie with JMF
STEP 1 [READY]
TotalMemory(133,234KB) FreeMem(92,128Kb) MaxMem(201,326Kb)
STEP 2 [Request Realize]
TotalMemory(133,234KB) FreeMem(92,125Kb) MaxMem(201,326Kb)
STEP 3 [Realized]
TotalMemory(133,234KB) FreeMem(66,612Kb) MaxMem(201,326Kb)
STEP 4 [Request Prefetch]
TotalMemory(133,234KB) FreeMem(71,109Kb) MaxMem(201,326Kb)
STEP 5 [Prefetched]
TotalMemory(133,234KB) FreeMem(67,800Kb) MaxMem(201,326Kb)
STEP 6 [Visual Component was contructed]
TotalMemory(133,234KB) FreeMem(66,810Kb) MaxMem(201,326Kb)
STEP 7 [Player Started]
TotalMemory(133,234KB) FreeMem(66,809Kb) MaxMem(201,326Kb)
STEP 9 [Before Close]
TotalMemory(133,234KB) FreeMem(62,464Kb) MaxMem(201,326Kb)
STEP 10 [After Close]
TotalMemory(133,234KB) FreeMem(63,379Kb) MaxMem(201,326Kb)
// Goes to condition, "outofmemory"
STEP [Before Application Terminated]
TotalMemory(133,234KB) FreeMem(63,360Kb) MaxMem(201,326Kb)