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Signed Java applet not getting permissions in Safari

I have a signed java applet (using a self-signed certificate) that should access the user's file system. I have to do this, so please do not answer ala "you should not do this" :)

The fact is that when I launch the Applet from Firefox 3.0 / Mac, everything works as I wish, I get all the access as it should.

When I use Safar 4 / Mac, I do not get access. The line that I especially encounter is related to System.getProperty () (although when I drown it out, FS access does not work)

String home = System.getProperty("user.home");

The exception that I get is the following:

java.security.AccessControlException: access denied (java.util.PropertyPermission user.home read)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)
at java.security.AccessController.checkPermission(AccessController.java:427)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
at java.lang.SecurityManager.checkPropertyAccess(SecurityManager.java:1285)
at java.lang.System.getProperty(System.java:628)
at de.samedi.searcher.Searcher.<init>(Searcher.java:49)
at de.samedi.searcher.Applet.getSearcher(Applet.java:193)
at de.samedi.searcher.Applet.getSearcher(Applet.java:187)
at de.samedi.searcher.Applet.addPatient(Applet.java:68)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at sun.plugin.javascript.invoke.JSInvoke.invoke(JSInvoke.java:19)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at sun.plugin.javascript.JSClassLoader.invoke(JSClassLoader.java:44)
at sun.plugin.liveconnect.PrivilegedCallMethodAction.run(SecureInvocation.java:658)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin.liveconnect.SecureInvocation$2.run(SecureInvocation.java:214)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin.liveconnect.SecureInvocation.CallMethod(SecureInvocation.java:192)
at sun.plugin.liveconnect.SecureInvocation.access$300(SecureInvocation.java:52)
at sun.plugin.liveconnect.SecureInvocation$CallMethodThread.run(SecureInvocation.java:123)

As I said, this works fine on Firefox. Be sure to check out the Windows browser today ...

Any ideas?

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 String home = System.getProperty("user.home");

1.4 . java.policy

.

 String home = (String) AccessController.doPrivileged(new PrivilegedAction() 
 {
      public Object run() 
      {
     return System.getProperty("user.home");
      }
 });
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