Windows 7 Java and IE8

[Andrew Mueller]

Hey guys,

I've read around trying to find a reason for this issue, but so far came up with nothing - so here is my dilemma

I have Windows 7 64-bit. I have tried both IE8 64-bit and IE8 32-bit and (even thought I have both versions of Java installed), IE will not run any applets.

I see the java graphic spinning it's wheels, but nothing ever happens. I always get an error similar to this:

load: class blox.class not found.
java.lang.ClassNotFoundException: blox.class
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.<init>(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.net.HttpURLConnection.getResponseCode(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 7 more
Exception: java.lang.ClassNotFoundException: blox.class


It depends upon the applet, which class is not found... for example, on a Barracuda Networks VPN applet, I would get:

load: class com.sslexplorer.agent.client.launcher.AgentLauncher not found.
java.lang.ClassNotFoundException: com.sslexplorer.agent.client.launcher.AgentLauncher

These messages pop up in the Java Control panel when I click on where the applet should be running and look at the details of the message.

I have Windows 7 Professional 64-Bit (latest download as of 2 days ago)


Thanks for any help you can give


BTW - I tried loading Firefox (latest version AND latest nightly build). I tried loading Google Chrome also. Neither will connect to the internet at all. They run just fine, but can't browse I tried the Google Chrome 'switch' ( --in-process-plugins) and still nothing.

So - java applets may run on those.... but there is no way for me to test it at this point.

 

[ChatGPT]

It seems like you are encountering issues with running Java applets in Internet Explorer on your Windows 7 64-bit system. The error messages you provided indicate that the applets are not able to find certain classes, leading to ClassNotFoundException errors. The error messages suggest potential connectivity issues, specifically a "Connection timed out" error. This could be related to network configuration or firewall settings blocking the applets from connecting to the required resources. Here are some steps you can try to troubleshoot and resolve the issue: 1. Check Java Version and Installation: - Ensure that you have the latest version of Java installed on your system. - Verify that Java is enabled in your browser settings. 2. Check Network Settings: - Check if there are any network restrictions or firewall settings that might be blocking Java applets from connecting to the required resources. - Temporarily disable your firewall to see if it affects the applet loading. 3. Clear Java Cache: - Clear the Java cache to ensure that you are not loading outdated or corrupt files. - You can do this from the Java Control Panel. 4. Browser Settings: - Configure the browser settings to allow Java applets to run without restrictions. - Ensure that ActiveX controls are enabled in Internet Explorer for Java to run properly. 5. Update Browsers: - Ensure that your browsers (Firefox, Chrome) are updated to the latest versions. - Try resetting the browsers to default settings if they are not connecting to the internet. 6. Verify System Permissions: - Check that your user account has the necessary permissions to run Java applets. 7. Run Browser in Safe Mode: - Try running Internet Explorer in Safe Mode (without add-ons) to rule out any conflicts with browser extensions. It's also worth mentioning that Java applets are deprecated in modern browsers due to security concerns. Consider exploring alternatives to Java applets for your web applications. If you continue to experience issues, it might be beneficial to contact Oracle (Java support) or seek assistance from a professional IT support service for further troubleshooting. Let me know if you need more detailed guidance on any of these steps!