signed applet gives AccessControlException: access denied, when calling from javascript

Question

I have an easy self-signed an applet (done with keytool and the jarsigner):

public class NetAppletLauncher extends JApplet {

    private static final long s         


        

Answer 1

The Java 2 security model requires (roughly) that every frame on the stack must be granted a permission for the access control context (acc) to have that permission. JavaScript is on the stack and does not have file access permissions.