sign an Applet or java.security.AccessControlException: access denied

If you have this error java.security.AccessControlException: access denied, you should sign your applet.

You will have this error if you would use the vnc applet :

Start vnc : vncserver -geometry 1024x600 -httpd  /usr/lib/vnc/classes/ -depth 24:1

And vnc applet failed with java.security.AccessControlException: access denied

The solution :

you should sign /usr/lib/vnc/classes/VncViewer.jar

1. Create the certificat :

# pacman-g2 -S openjre

$ /usr/lib/jvm/java-6-openjdk/jre/bin/keytool -genkey

(.keystore is created in the home directory)

$ /usr/lib/jvm/java-6-openjdk/jre/bin/keytool -selfcert

2. Sign applet :

# pacman-g2 -S openjdk

you should have the permission to write in the directory the time to sign it.

$ /usr/lib/jvm/java-6-openjdk/bin/jarsigner -storepass KeySorePassword -keypass KeyPassPassword /usr/lib/vnc/classes/VncViewer.jar mykey

Now you can use the vnc applet in your browser.