Hi,

I'm getting the following exception once in a while and have a hard time reduplicating this issue.  Unfortunately, when it does occur, I can no longer open any web pages via JExplorer.  Any ideas how to fix this?

Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: Main message loop thread is already stopped.
    at com.jniwrapper.win32.MessageLoopThread.checkRunning(MessageLoopThread.java:258)
    at com.jniwrapper.win32.MessageLoopThread.doInvokeAndWait(MessageLoopThread.java:185)
    at com.jniwrapper.win32.ie.OleMessageLoopUtilities.invokeAndWait(Unknown Source)
    at com.jniwrapper.win32.ie.bp.navigate(Unknown Source)
    at com.jniwrapper.win32.ie.db.navigate(Unknown Source)
    at com.jniwrapper.win32.ie.db.navigate(Unknown Source)
    at com.jniwrapper.win32.ie.Browser.navigate(Unknown Source)
    at com.amt.jexplorer.BrowserInvoker.showInternalBrowser(BrowserInvoker.java:122)
    at com.amt.jexplorer.BrowserInvoker.show(BrowserInvoker.java:97

    ...

I put the code for the BrowserInvoker object below.

Thanks,

Steve

----------------------------------------------------

package com.amt.jexplorer;

import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JTabbedPane;

import com.jniwrapper.win32.ie.Browser;
import com.jniwrapper.win32.ie.event.DisposeEvent;
import com.jniwrapper.win32.ie.event.DisposeListener;

/**
*    Browser frame
*/
public class BrowserInvoker {

    /**
    *    Maximum number of tabs (URLs) allowed to be opened at once
    */
    private final static int MAX_NUM_TABS = 5;
  
    /**
    *    Singleton instance
    */
    private final static BrowserInvoker _instance = new BrowserInvoker();
  
    /**
    *    Frame component
    */
    private JFrame _frame;
  
    /**
    *    Tab pane that holds the browser components
    */
    private JTabbedPane _tabs;
  
    /**
    *    Embedded JxBrowser components
    */
    private Browser[] _browsers;
  
  
    /**
    *    Constructs a browser frame
    */
    private BrowserInvoker() {
              
        //    Create the five browser tabs
        _browsers = new Browser[MAX_NUM_TABS];
      
        for(int i = 0; i < MAX_NUM_TABS; i++) {
            _browsers[i] = new Browser();
            _browsers[i].setSilent(true);
            _browsers[i].addDisposeListener(new DisposedListener(i));
        }
    }
  
    /**
    *    Gets the singleton instance
    */
    public static BrowserInvoker getInstance() {
        return _instance;
    }
  
    /**
    *    Builds this UI
    */
    public void buildUI() {
      
        _frame = new JFrame();
        _frame.addWindowListener(new WindowCloseListener());

        _tabs = new JTabbedPane();
        _tabs.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
        _frame.getContentPane().add(_tabs, BorderLayout.CENTER);
      
        _frame.setSize(900, 700);
    }
  
   /**
    *    Shows the url(s) in the browser
    */
    public void showBrowser(String title, String[] tabTitles, String[] urls) {
      
        _frame.setTitle(title);
      
        //    Remove any previous tabs
        _tabs.removeAll();
      
        //    Add a new tab for each URL
        for(int i = 0; i < urls.length; i++) {
          
            //    Stop if we've reached the max number of allowed tabs
            if(i == MAX_NUM_TABS) {
                break;
            }
          
            _browsers[i].navigate(urls[i]);
          
            _tabs.addTab(tabTitles[i], _browsers[i]);
        }

        _frame.setVisible(true);
    }
  
 
    /**
    *    Handles closing the window
    */
    class WindowCloseListener extends WindowAdapter {
      
        public void windowClosing(WindowEvent e) {
          
            //    Clear each browser window
            for(Browser browser : _browsers) {
                try {
                    //  Set content to empty to shut down any playing audios/videos
                    browser.setContent("");
                }
                catch(Exception ex) {}
            }
          
            //    Hide this window
            _frame.setVisible(false);
        }
    }
  
    /**
    *    Handles a disposed browser
    */
    class DisposedListener implements DisposeListener {
      
        private int _index;
      
        public DisposedListener(int index) {
            _index = index;
        }
      
        public void browserDisposed(DisposeEvent e) {

            //  Not sure if this is the best way, but how else
            //  should I handle disposed browsers? 
            _browsers[_index] = new Browser();
            _browsers[_index].setSilent(true);
            _browsers[_index].addDisposeListener(new DisposedListener(_index));
        }
    }

    /**
     *    Used for testing
     */
    public static void main(String[] args) {
           
        BrowserInvoker frame = BrowserInvoker.getInstance();
        frame.buildUI();
       
        String[] title= {"Google", "Yahoo", "Bing"};

        String[] urls = {"http://www.google.com", "http://www.yahoo.com", "http://www.bing.com"};

        frame.show("Test", titles, urls);
    }
}