Applet error - Access Control Exception: access denied

[dan0]

I've put together an applet that is supposed to display a user's file system via a JTree. Unfortunately, I've been getting an access control exception error. Does anyone know how to overcome the following error?

Java Plug-in 1.6.0_11
Using JRE version 1.6.0_11 Java HotSpot(TM) Client VM

java.security.AccessControlException: access denied (java.util.PropertyPermission * read,write)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPropertiesAccess(Unknown Source)
at java.lang.System.getProperties(Unknown Source)
at TreeApplet.<init>(TreeApplet.java:17)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception: java.security.AccessControlException: access denied (java.util.PropertyPermission * read,write)

Here is my code:

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.JTree.*;
import java.util.*;


/* 
<applet code="TreeApplet.class" width=300 height=100>
</applet>
 */

public class TreeApplet extends Applet {
	// Create default tree
	Properties systemProperties = new Properties(System.getProperties());
	JTree systemTree = new JTree(systemProperties);
	JScrollPane scrollPane = new JScrollPane(systemTree);
	JPanel panel = new JPanel(new FlowLayout());
		
	public void init(){
		systemTree.setRootVisible(true);
		panel.add(scrollPane);
		setLayout(new FlowLayout());
		add(panel);
		setVisible(true);
	}
	
	public void start(){
		
		showStatus("Java Tree");
	}
	
	
}

[JVposter]

Hello!

http://www.wutka.com/hackingjava/ch3.htm
You can not to have access to file system from an applet. It is a security measure.

http://www.captain.at/programming/java/