I have tried uninstalling, and re-installing the latest version of Java...

any time I try and run an applet I get this error...

The publisher cannot be verified by a trusted source. Code will be treated as unsigned.
Name: loader

Java.io.EOFException
at java.io.DataInputStream.readInt(Unknown Source)
at sun.security.provider.JavaKeyStore.engineLoad(Unknown Source)
at sun.security.provider.JavaKeyStore$JKS.engineLoad(Unknown Source)
at java.security.KeyStore.load(Unknown Source)
at com.sun.deploy.security.DeploySigningCertStore$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeploySigningCertStore.loadCertStore(Unknown Source)
at com.sun.deploy.security.DeploySigningCertStore.load(Unknown Source)
at com.sun.deploy.security.DeploySigningCertStore.load(Unknown Source)
at com.sun.deploy.security.ImmutableCertStore.load(Unknown Source)
at com.sun.deploy.security.TrustDecider.isAllPermissionGranted(Unknown Source)
at com.sun.deploy.security.TrustDecider.isAllPermissionGranted(Unknown Source)
at sun.plugin.security.PluginClassLoader.getPermissions(Unknown Source)
at java.security.SecureClassLoader.getProtectionDomain(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at sun.applet.AppletClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadCode(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

I tried looking at the java control pannel, and when I clicked on security, then certificates and I got this error

General Exception

java.io.EOFException
at java.io.DataInputStream.readInt(Unknown Source)
at sun.security.provider.JavaKeyStore.engineLoad(Unknown Source)
at sun.security.provider.JavaKeyStore$JKS.engineLoad(Unknown Source)
at java.security.KeyStore.load(Unknown Source)
at com.sun.deploy.security.DeploySigningCertStore$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeploySigningCertStore.loadCertStore(Unknown Source)
at com.sun.deploy.security.DeploySigningCertStore.load(Unknown Source)
at com.sun.deploy.security.DeploySigningCertStore.load(Unknown Source)
at com.sun.deploy.panel.CertificatesInfo.reset(Unknown Source)
at com.sun.deploy.panel.CertificatesInfo.<init>(Unknown Source)
at com.sun.deploy.panel.CertificatesDialog.<init>(Unknown Source)
at com.sun.deploy.panel.SecurityPanel.certsBtnActionPerformed(Unknown Source)
at com.sun.deploy.panel.SecurityPanel.access$000(Unknown Source)
at com.sun.deploy.panel.SecurityPanel$1.actionPerformed(Unknown Source)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

The only way I am able to run a java applet is Unsigned...

 

 

If you have an existing .keystore file, you can try renaming or deleting it. This file contains security keys that you have added to your computer; uninstalling Java does not remove or alter it, and it may be corrupted. Java will run without the file.

In Windows, the default location is C:\Documents and Settings\<username>

 

 

... I'm not really sure what to look for...

 

 

The name of the file is ".keystore" (wihtout the quotes)

 

 

Did not see anything like that anywhere... still having the same issues.

 

 

I am having this same exact problem and receiving the same error anytime I try to run a java appet within any browser.
I cannot locate a keystore file or any other security certificate files. Also under Control Panel, If I run the Java Control Panel and then select the Security tab/certificates. I see a similar error and do not see any certificates. Any ideas on how to correct this.

 

 

I had the exact same problem on Linux (Ubuntu 8.04) and I've been trying to solve it for weeks and finally found how!!!

In your user home directory, there should be a hidden folder "/.java"
go into "/home/USER_NAME/.java/deployment/security/"
delete "trusted.certs" and "auth.dat"

 

 

first try run ur applet in appletviewer.if it works well with it than check ur browser setting for applet.if ur browser is not applet enabled than it will not display any output..
if ur applet does'nt work with appletviewer than let u know me with error.

 

 

Cannot download lake cards.com.