Java.security.AccessControlException using AccessController.doPrivileged

Question

Hi all,
i'm working with a signed applet in which i need to load a dll. I know that accessing a local dll is not so simple, but as i've read around on the net it should be possible using the AccessController.doPrivileged method to get permissions on a block of code. Even if it is not so safe.
But i'm still getting following exception
- Exception
java.security.AccessControlException: access denied (java.lang.RuntimePermission loadLibrary.C:\Program Files\....\dllname.dll)
even if the dll access is done inside a privileged block of code as follows
WebBrowser browser = (WebBrowser) AccessController.doPrivileged(new PrivilegedAction() {
  public Object run() {
    Xpcom.initialize();
    browser = WebBrowserFactory.getInstance().createBrowser();
    browser.navigate(url);
    return browser;
});I didn't change anything else (java.policy file for example).
Am i missing something? Shouldn't the privileged block let me avoid AccessControlException? (Please note that i get the same exception with or without the privileged block).
Thank you very much for your help.
Edited by: notsokevin on Aug 21, 2009 6:44 AM

Answer 1

Hi,
adding the following permissions in the policy file helped:
grant {
// following two permissions allow
// access to default config files
permission java.io.FilePermission
          "/path/to/mail.jar", "read";
permission java.io.FilePermission
          "/path/to/activation.jar", "read";
// following to use SMTP
permission java.net.SocketPermission
          "SMTPHOST:25", "connect,resolve";
// following needed if System.getProperties() is used
permission java.util.PropertyPermission
          "*", "read,write";
Thank you.
- cheers
Sakthi