Como mostrar paginas HTML en una JInternalFrame en una aplicacion

[astinx]

Hola siento la demora en responder, ya lo arregle simplemente implemente una clase mejor con una que me encontre en el internete, se las dejo aca por si algun dia les es de ayuda...
package clases;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextField;
import javax.swing.JToolBar;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;

public class TabbedPaneWebBrowser extends JFrame {

private JTabbedPane tabbedPane = new JTabbedPane();

public TabbedPaneWebBrowser() {
super("Navegador");

createNewTab();

getContentPane().add(tabbedPane);

JMenu fileMenu = new JMenu("Archivos");
fileMenu.add(new NewTabAction());
fileMenu.addSeparator();
fileMenu.add(new ExitAction());
fileMenu.setMnemonic('F');

JMenuBar menuBar = new JMenuBar();
menuBar.add(fileMenu);
setJMenuBar(menuBar);

}

private void createNewTab() {
JPanel panel = new JPanel(new BorderLayout());
WebBrowserPane browserPane = new WebBrowserPane();
WebToolBar toolBar = new WebToolBar(browserPane);
panel.add(toolBar, BorderLayout.NORTH);
panel.add(new JScrollPane(browserPane), BorderLayout.CENTER);
tabbedPane.addTab("Pestaña Nº " + tabbedPane.getTabCount(), panel);
}

private class NewTabAction extends AbstractAction {

public NewTabAction() {
putValue(Action.NAME, "Nueva pestaña");
putValue(Action.SHORT_DESCRIPTION, "Crea una nueva pestaña");
putValue(Action.MNEMONIC_KEY, new Integer('N'));
}

public void actionPerformed(ActionEvent event) {
createNewTab();
}
}

private class ExitAction extends AbstractAction {
public ExitAction() {
putValue(Action.NAME, "Salir");
putValue(Action.SHORT_DESCRIPTION, "Sale de la aplicacion");
putValue(Action.MNEMONIC_KEY, new Integer('x'));
}

public void actionPerformed(ActionEvent event) {
System.exit(0);
}
}

public static void main(String args[]) {
TabbedPaneWebBrowser browser = new TabbedPaneWebBrowser();
browser.setDefaultCloseOperation(EXIT_ON_CLOSE);
browser.setSize(640, 480);
browser.setVisible(true);
}
}

class WebBrowserPane extends JEditorPane {

private List history = new ArrayList();

private int historyIndex;

public WebBrowserPane() {
setEditable(false);
}

public void goToURL(URL url) {
displayPage(url);
history.add(url);
historyIndex = history.size() - 1;
}

public URL forward() {
historyIndex++;
if (historyIndex >= history.size())
historyIndex = history.size() - 1;

URL url = (URL) history.get(historyIndex);
displayPage(url);

return url;
}

public URL back() {
historyIndex--;

if (historyIndex < 0)
historyIndex = 0;

URL url = (URL) history.get(historyIndex);
displayPage(url);

return url;
}

private void displayPage(URL pageURL) {
try {
setPage(pageURL);
} catch (IOException ioException) {
ioException.printStackTrace();
}
}
}

class WebToolBar extends JToolBar implements HyperlinkListener {

private WebBrowserPane webBrowserPane;

private JButton backButton;

private JButton forwardButton;

private JTextField urlTextField;

public WebToolBar(WebBrowserPane browser) {
super("Web Navigation");

// register for HyperlinkEvents
webBrowserPane = browser;
webBrowserPane.addHyperlinkListener(this);

urlTextField = new JTextField(25);
urlTextField.addActionListener(new ActionListener() {

// navigate webBrowser to user-entered URL
public void actionPerformed(ActionEvent event) {

try {
URL url = new URL(urlTextField.getText());
webBrowserPane.goToURL(url);
}

catch (MalformedURLException urlException) {
urlException.printStackTrace();
}
}
});

backButton = new JButton("Atras");
backButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
URL url = webBrowserPane.back();
urlTextField.setText(url.toString());
}
});

forwardButton = new JButton("Adelante");

forwardButton.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent event) {
URL url = webBrowserPane.forward();
urlTextField.setText(url.toString());
}
});
add(backButton);
add(forwardButton);
add(urlTextField);
}

public void hyperlinkUpdate(HyperlinkEvent event) {
if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
URL url = event.getURL();
webBrowserPane.goToURL(url);
urlTextField.setText(url.toString());
}
}
}