Thread: Access Denied!

Applets are not allowed to access files on the machine it is executing on.
They can get files from the server they were loaded from.

Can you explain in more detail what you are trying to do?

What is the applet simulator?

sign your jar. I'm wondering how you do that.

Ask google. Signing a jar is a multi-step process.

See the tutorial: http://docs.oracle.com/javase/tutori...tFunction.html

You were able to sign the jar file in 20 minutes?

How do you use a jar file with AppletViewer?

it keeps giving me this error

what is the "it"?

What is shown in the browser's java console?

There is a setting via the Java icon in the Control Panel on Windows.

Where did you look?

Mine comes in the upper left of the screen when I open a page with an applet.

Chrome and Firefox

It said:

Java Plug-in 10.15.2.03
Using JRE version 1.7.0_15-b03 Java HotSpot(TM) Client VM
User home directory = C:\Users\Ajay
----------------------------------------------------
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------
Exception in thread "AWT-EventQueue-2" java.security.AccessControlException: access denied ("java.util.PropertyPermission" "user.name" "read")
at java.security.AccessControlContext.checkPermission (Unknown Source)
at java.security.AccessController.checkPermission(Unk nown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPropertyAccess(Unkn own Source)
at java.lang.System.getProperty(Unknown Source)
at Main.run(Main.java:96)
at Main.paint(Main.java:59)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JLayeredPane.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paintToOffscreen(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paintDoubl eBuffered(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paint(Unkn own Source)
at javax.swing.RepaintManager.paint(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at java.awt.GraphicsCallback$PaintCallback.run(Unknow n Source)
at sun.awt.SunGraphicsCallback.runOneComponent(Unknow n Source)
at sun.awt.SunGraphicsCallback.runComponents(Unknown Source)
at java.awt.Container.paint(Unknown Source)
at javax.swing.RepaintManager$3.run(Unknown Source)
at javax.swing.RepaintManager$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPri vilege(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unkno wn Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unkno wn Source)
at javax.swing.RepaintManager.prePaintDirtyRegions(Un known Source)
at javax.swing.RepaintManager.access$1000(Unknown Source)
at javax.swing.RepaintManager$ProcessingRunnable.run( Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPri vilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilter s(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(U nknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Repeats...

--- Update ---

Also, what I understood from the link you gave me was you have to add the text:

<script src=
"http://www.java.com/js/deployJava.js"></script>
<script>
var attributes = {code:'<whatever>.class',
archive:'<whatever.jar>.jar',
width:710, height:540} ;
var parameters = {fontSize:16} ;
var version = '1.7' ;
deployJava.runApplet(attributes, parameters, version);
</script>

to run the applet instead of the normal code.

java.security.AccessControlException: access denied ("java.util.PropertyPermission" "user.name" "read")

The applet does not have the permission it needs.

I've never used JNLP. I've only used the <applet tags.

My applets that require permission are only executed on my pc. I use the .java.policy file to grant permissions.
Here is a sample of my .java.policy file:

grant {
permission java.lang.RuntimePermission "modifyThread";
permission java.lang.RuntimePermission "loadLibrary.HelloNative";
permission java.util.PropertyPermission "*", "read";
permission java.lang.RuntimePermission "modifyThreadGroup";
permission java.io.FilePermission "E:/Java/Java-1_6_0/docs", "read";
permission java.io.FilePermission "E:/Java/tutorial", "read";
permission java.net.SocketPermission "127.0.0.1:3000", "connect, resolve";
};

grant codeBase "file:/D:/JavaDevelopment/Testing/WriteFile/-" {
permission java.io.FilePermission "D:/Testing/*", "read, write";
};

I use the policytool to edit it. It is located in the user.dir folder.