Run Priviliged Code in a Java Applet

Question

I am calling a Java applet from Javascript. The Java code needs to run in privileged mode.  Eventually it is going to display a file chooser which will display files from the local hard disk, but for now it just returns a simple dummy value.  The problem I am having is that the call from JavaScript to Java returns PrivilegedActionException. The applet is in a signed Jar file.  I'm running 8u25.
Here's the Java class:
    // Java code
    public class OHLib extends Applet {
        public String getFile() {
            String result;
            try {
                result = (String) AccessController.doPrivileged(new PrivilegedAction() {
                    public String run() {
                        // JFileChooser code will go here
                        return "xxx";
            } catch (Exception e) {
                e.printStackTrace();
            return result;
Can anybody tell me what's wrong with this code?  I would also be interested to know why the above try/catch block is not catching the exception.  The only place I see the exception is in the browser F12 developer tools.
Here's the JavaScript code:
    function BrowseForFile() {
        var x;
        try {
             // this code generates PrivilegedActionException
             x = ohApplet.getFile();
        } catch (e) {
             console.log(e);
The applet is deployed on my web page as follows:
<script src="/plugins/deployJava.js"></script>
<script>
     var attributes = {
         id:'ohApplet',
         code:'OHLib',
         codebase: 'java',
         archive: 'OHLib.jar',
         width:1,
         height:1,
     var parameters = {
      jnlp_href: 'OHLib.jnlp',
      classloader_cache: 'false',
     deployJava.runApplet(attributes, parameters, '1.8');
<script>
The applet is in a signed jar file, with the following manifest:
Application-Name: <appname>
Permissions: all-permissions
Codebase: <domain>.dev <domain>.com
Caller-Allowable-Codebase: <domain>.dev <domain>.com
Application-Library-Allowable-Codebase: <domain>.dev <domain>.com
The JNLP file is as follows:
    <?xml version="1.0" encoding="UTF-8"?>
    <jnlp spec="1.0+" codebase="" href="">
        <information>
            <title>title</title>
            <vendor>vendor</vendor>
        </information>
        <security>
            <all-permissions />
        </security>
        <resources>
            <j2se version="1.8+" href="http://java.sun.com/products/autodl/j2se" />
            <jar href="OHLib.jar" main="true" />
        </resources>
        <applet-desc
             main-class="OHLib"
             name="OHLib"
             width="1"
             height="1">
         </applet-desc>
    </jnlp>       

Answer 1

The problem was that I was not including the anonymous inner class (OHLib$1.class) in the jar file. My original jar command looked like this:
jar cfmv OHLib.jar "../../jar_manifest.txt" OHLib.class
Changing it to below fixed the problem:
jar cfmv OHLib.jar "../../jar_manifest.txt" OHLib.class OHLib$1.class
Credits go to this page  for the solution.