Don't understand the java.lang.OutOfMemoryError

Question

Hi there,
I try to create an 'About' frame for a small programm I created and I get an java.lang.OutOfMemoryError which I don't understand. Can somebody help?
Here is my code:
* TabbedPaneDemo.java is a 1.4 example that requires one additional file:
*   images/middle.gif.
import javax.swing.JTabbedPane;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JComponent;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.KeyEvent;
import java.awt.Dimension;
import java.awt.Rectangle;
public class TabbedAbout extends JPanel {
          JLabel label=new JLabel("PRODUCT INFORMATION ");
            JLabel pv=new JLabel("Product version:");
            JLabel pvR=new JLabel("1.0");
            JLabel javav=new JLabel("Java Version:");
            JLabel javavR=new JLabel("1.4.2");
            JLabel sqlv=new JLabel("PostgreSQL Version:");
            JLabel sqlvR=new JLabel("8.1");
            JLabel pt=new JLabel("Programming Team:");
            JLabel onoma1=new JLabel("Gkisis Traianos");
            JLabel onoma2=new JLabel("Zafeiropoulos Ioannis");
            JLabel onoma3=new JLabel("Supervisor Teacher:");
            JLabel onoma3R=new JLabel("Stamatis Dimosthenis");
            JLabel alr=new JLabel("Product developed as dissertation for the ATEI");
            JLabel alr2=new JLabel("Thessaloniki on autumn 2006.");
            JLabel alr1=new JLabel("All rights reserved");
            ImageIcon icon = createImageIcon("images/folder_sticky.gif");
        ImageIcon icon2 = createImageIcon("images/tick.gif");
    public TabbedAbout() {
         JLabel panel1 = new JLabel();
         JFrame frame = new JFrame("About");
         JFrame.setDefaultLookAndFeelDecorated(true);
         frame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
         //super(new GridLayout(1, 1));
        JTabbedPane tabbedPane = new JTabbedPane();
        panel1.setIcon(new ImageIcon("images/TakeANoteProgress.jpg"));
        tabbedPane.addTab("About", icon, panel1);
        tabbedPane.setMnemonicAt(0, KeyEvent.VK_1);
        JPanel panel2 = new JPanel();
        //JFrame frame2 = new JFrame();
        panel2.setLayout(null);
        label.setIcon(icon2);
        label.setBounds(new Rectangle(20, 20, 200, 25));
        pv.setBounds(new Rectangle(20, 40, 175, 45));
        pvR.setBounds(new Rectangle(180, 40, 175, 45));
        javav.setBounds(new Rectangle(20, 60, 175, 45));
        javavR.setBounds(new Rectangle(180, 60, 175, 45));
        sqlv.setBounds(new Rectangle(20, 80, 175, 45));
        sqlvR.setBounds(new Rectangle(180, 80, 175, 45));
        pt.setBounds(new Rectangle(20, 100, 175, 45));
        onoma1.setBounds(new Rectangle(180, 100, 175, 45));
        onoma2.setBounds(new Rectangle(180, 120, 175, 45));
        onoma3.setBounds(new Rectangle(20, 140, 175, 45));
        onoma3R.setBounds(new Rectangle(180, 140, 175, 45));
        alr.setBounds(new Rectangle(20, 190, 500, 45));
        alr2.setBounds(new Rectangle(20, 210, 500, 45));
        alr1.setBounds(new Rectangle(20, 250, 500, 45));
        panel2.add(label);
        panel2.add(pv);
        panel2.add(pvR);
        panel2.add(javav);
        panel2.add(javavR);
        panel2.add(sqlv);
        panel2.add(sqlvR);
        panel2.add(pt);
        panel2.add(onoma1);
        panel2.add(onoma2);
        panel2.add(onoma3);
        panel2.add(onoma3R);
        panel2.add(alr);
        panel2.add(alr2);
        panel2.add(alr1);
        tabbedPane.addTab("Detail", icon, panel2);
        tabbedPane.setMnemonicAt(1, KeyEvent.VK_2);
        tabbedPane.setSize(new Dimension(400, 300));
        //Add the tabbed pane to this panel.
        add(tabbedPane);
        //Uncomment the following line to use scrolling tabs.
        //tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
        //Create and set up the content pane.
        JComponent newContentPane = new TabbedAbout();
        newContentPane.setOpaque(true); //content panes must be opaque
        frame.getContentPane().add(new TabbedAbout(),
                                 BorderLayout.CENTER);
        //Display the window.
        frame.setLocationRelativeTo(super.getComponent(0));
        frame.pack();
        frame.setResizable(false);
        frame.setVisible(true);
    protected JComponent makeTextPanel(String text) {
        JPanel panel = new JPanel(false);
        JLabel filler = new JLabel(text);
        filler.setHorizontalAlignment(JLabel.CENTER);
        //panel.setLayout(new GridLayout(1, 1));
        panel.add(filler);
        return panel;
    /** Returns an ImageIcon, or null if the path was invalid. */
    protected static ImageIcon createImageIcon(String path) {
        java.net.URL imgURL = TabbedAbout.class.getResource(path);
        if (imgURL != null) {
            return new ImageIcon(imgURL);
        } else {
            System.err.println("Couldn't find file: " + path);
            return null;
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event-dispatching thread.
   // private static void createAndShowGUI() {
        //Make sure we have nice window decorations.
        //Create and set up the window.
  public static void main(String[] args) {
  //      //Schedule a job for the event-dispatching thread:
    //    //creating and showing this application's GUI.
        //javax.swing.SwingUtilities.invokeLater(new Runnable() {
         // public void run() {
               TabbedAbout a=new TabbedAbout();
    }Thanks in advance

Answer 1

I will try your suggestions. But still I don't understand. It was running independently very ok and it was what I wanted. It was built excatly as the example in
With run and main etc etc. But when I put it in my rest program it started and stack overflow error. Then I tried to change, change, change and got this last form.
This is what I had before but didn't work with my rest program.
* TabbedPaneDemo.java is a 1.4 example that requires one additional file:
*   images/middle.gif.
import javax.swing.JTabbedPane;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JComponent;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.KeyEvent;
import java.awt.Dimension;
import java.awt.Rectangle;
public class TabbedAbout extends JPanel {
  JLabel label=new JLabel("PRODUCT INFORMATION ");
  JLabel pv=new JLabel("Product version:");
  JLabel pvR=new JLabel("1.0");
  JLabel javav=new JLabel("Java Version:");
  JLabel javavR=new JLabel("1.4.2");
  JLabel sqlv=new JLabel("PostgreSQL Version:");
  JLabel sqlvR=new JLabel("8.1");
  JLabel pt=new JLabel("Programming Team:");
  JLabel onoma1=new JLabel("Gkisis Traianos");
  JLabel onoma2=new JLabel("Zafeiropoulos Ioannis");
  JLabel onoma3=new JLabel("Supervisor Teacher:");
  JLabel onoma3R=new JLabel("Dimosthenis Stamatis");
  JLabel alr=new JLabel("Product developed as dissertation for the ATEI Thessaloniki on autumn 2006.");
  JLabel alr1=new JLabel("All rights reserved");
    public TabbedAbout() {
        //super(new GridLayout(1, 1));
        JTabbedPane tabbedPane = new JTabbedPane();
        ImageIcon icon = createImageIcon("images/folder_sticky.gif");
        JLabel panel1 = new JLabel();
        panel1.setIcon(new ImageIcon("images/TakeANote.jpg"));
        tabbedPane.addTab("About", icon, panel1);
        tabbedPane.setMnemonicAt(0, KeyEvent.VK_1);
        JPanel panel2 = new JPanel();
        JFrame frame = new JFrame();
        panel2.setLayout(null);
         label.setBounds(new Rectangle(170, 20, 150, 25));
         pv.setBounds(new Rectangle(90, 40, 175, 45));
         pvR.setBounds(new Rectangle(220, 40, 175, 45));
         javav.setBounds(new Rectangle(90, 60, 175, 45));
         javavR.setBounds(new Rectangle(220, 60, 175, 45));
         sqlv.setBounds(new Rectangle(90, 80, 175, 45));
         sqlvR.setBounds(new Rectangle(220, 80, 175, 45));
         pt.setBounds(new Rectangle(90, 100, 175, 45));
         onoma1.setBounds(new Rectangle(220, 100, 175, 45));
         onoma2.setBounds(new Rectangle(220, 120, 175, 45));
         onoma3.setBounds(new Rectangle(90, 140, 175, 45));
         onoma3R.setBounds(new Rectangle(220, 140, 175, 45));
         alr.setBounds(new Rectangle(30, 170, 500, 45));
         alr1.setBounds(new Rectangle(170, 190, 500, 45));
        panel2.add(label);
        panel2.add(pv);
        panel2.add(pvR);
        panel2.add(javav);
        panel2.add(javavR);
        panel2.add(sqlv);
        panel2.add(sqlvR);
        panel2.add(pt);
        panel2.add(onoma1);
        panel2.add(onoma2);
        panel2.add(onoma3);
        panel2.add(onoma3R);
        panel2.add(alr);
        panel2.add(alr1);
        tabbedPane.addTab("Detail", icon, panel2);
        tabbedPane.setMnemonicAt(1, KeyEvent.VK_2);
        tabbedPane.setSize(new Dimension(400, 300));
        //Add the tabbed pane to this panel.
        add(tabbedPane);
        //Uncomment the following line to use scrolling tabs.
        //tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
    protected JComponent makeTextPanel(String text) {
        JPanel panel = new JPanel(false);
        JLabel filler = new JLabel(text);
        filler.setHorizontalAlignment(JLabel.CENTER);
        //panel.setLayout(new GridLayout(1, 1));
        panel.add(filler);
        return panel;
    /** Returns an ImageIcon, or null if the path was invalid. */
    protected static ImageIcon createImageIcon(String path) {
        java.net.URL imgURL = TabbedAbout.class.getResource(path);
        if (imgURL != null) {
            return new ImageIcon(imgURL);
        } else {
            System.err.println("Couldn't find file: " + path);
            return null;
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event-dispatching thread.
    private static void createAndShowGUI() {
        //Make sure we have nice window decorations.
        JFrame.setDefaultLookAndFeelDecorated(true);
        //Create and set up the window.
        JFrame frame = new JFrame("About");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        //Create and set up the content pane.
        JComponent newContentPane = new TabbedAbout();
        newContentPane.setOpaque(true); //content panes must be opaque
        frame.getContentPane().add(new TabbedAbout(),
                                 BorderLayout.CENTER);
        //Display the window.
        frame.pack();
        frame.setVisible(true);
    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
}But independetly was working just fine. Excatly as I wanted
Message was edited by:
sickboy