Exception in thread "main" java.lang.OutOfMemoryError: Java heap space JEditor Pane

From:
"CSUIDL PROGRAMMEr" <syedamjad_a@yahoo.com>
Newsgroups:
comp.lang.java.gui
Date:
22 May 2006 14:34:34 -0700
Message-ID:
<1148333674.821124.318100@u72g2000cwu.googlegroups.com>
Folks i have a simple program

mport java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.event.HyperlinkListener;
import javax.swing.event.HyperlinkEvent;
import java.util.*;

public class MyPanel extends JPanel implements HyperlinkListener {
    private JEditorPane J;
    private JTextArea jt;
    public MyPanel() {
        //construct components
        J = new JEditorPane ();
        jt=new JTextArea(5,5);
        //adjust size and set layout
        setPreferredSize (new Dimension (781, 508));
        setLayout (null);

        //add components
        add (J);
        add(jt);
StringBuffer sb = new StringBuffer();
    sb.append("<a href=\"/Users/amjad\">Do the foo action</a><br>");
    sb.append("<a href=\"/Users/amjad/Desktop\">Do the bar
thing</a><br>");
    J.setText(sb.toString());
        //set component bounds (only needed by Absolute Positioning)
        J.setBounds (285, 70, 155, 135);
       J.setContentType("text/html");

       J.addHyperlinkListener(new MyPanel());
    }

public void hyperlinkUpdate(HyperlinkEvent e) {
      if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
        StringTokenizer st = new StringTokenizer(e.getDescription(), "
");
        if (st.hasMoreTokens()) {
          String s = st.nextToken();
          System.err.println("token: " + s);
        }
      }
    }

    public static void main (String[] args) {
        JFrame frame = new JFrame ("MyPanel");
        frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().add (new MyPanel());
        frame.pack();
        frame.setVisible (true);
    }
}

It compiles nicely. But when i run it it gives
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
Any solution

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