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Japs
Guest
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 Posted: Mon May 08, 2006 8:07 pm Post subject: Problem with MainFrame class in JApplet |
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Hi all!
I'm new to this NG so I'll try to explain my problem.
I'm using JAVA3D into a JApplet. This is the code
| Code: |
import java.util.*;
import java.net.*;
import java.awt.*;
import javax.swing.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
....
public class OSESKeyNav extends JApplet
{
private static final int WINDOW_WIDTH = 800;
private static final int WINDOW_HEIGHT = 700;
private static URL url = null;
private int simulationStage = 0; // 0->init, 1->prima visualizzazione
private Receiver receiver;
private Sender sender;
private ObjectsUpdater updater;
private HashMap objList;
private UniverseManager universe;
private Camera camera;
public OSESKeyNav() { }
public OSESKeyNav( String host )
{
receiver = new Receiver( host );
objList = new HashMap();
setLayout(new BorderLayout());
GraphicsConfiguration config =
SimpleUniverse.getPreferredConfiguration();
Canvas3D canvas3D = new Canvas3D( config );
canvas3D.setSize( WINDOW_WIDTH, WINDOW_HEIGHT );
add("North", canvas3D);
universe = new UniverseManager();
createSceneGraph();
updater = new ObjectsUpdater( objList, receiver );
updater.start();
addCamera( canvas3D );
universe.makeLive();
}
private void createSceneGraph()
{
...
}
private void addCamera( Canvas3D canvas )
{
....
}
public void init()
{
url = getCodeBase();
String host = url.getHost();
OSESKeyNav applet = new OSESKeyNav( host );
new MainFrame(applet, WINDOW_WIDTH, WINDOW_HEIGHT);
}
}
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When I try to view this applet with my browser JVM returns this exception
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 com.sun.j3d.utils.applet.MainFrame.build(Unknown Source)
at com.sun.j3d.utils.applet.MainFrame.<init>(Unknown Source)
at OSESKeyNav.init(OSESKeyNav.java:186)//-------------------------new
MainFrame(applet, WINDOW_WIDTH, WINDOW_HEIGHT);
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
I don't know where is the problem.
I tried to use a JPanel instead of MainFrame: the errors disappears but I
don't see the canvas3d.
Please help me!:)
Thanks to all!
(sorry for my bad english) |
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Oliver Wong
Guest
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| Posted: Wed May 10, 2006 7:07 pm Post subject: Re: Problem with MainFrame class in JApplet |
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"Japs" <aaa (AT) aaa (DOT) no> wrote in message
news:v7N7g.114298$A83.2710577 (AT) twister1 (DOT) libero.it...
| Quote: | Hi all!
I'm new to this NG so I'll try to explain my problem.
I'm using JAVA3D into a JApplet. This is the code
[code snipped]
When I try to view this applet with my browser JVM returns this exception
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 com.sun.j3d.utils.applet.MainFrame.build(Unknown Source)
at com.sun.j3d.utils.applet.MainFrame.<init>(Unknown Source)
at
OSESKeyNav.init(OSESKeyNav.java:186)//-------------------------new
MainFrame(applet, WINDOW_WIDTH, WINDOW_HEIGHT);
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
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Have you tried signing your applet?
- Oliver |
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Japs
Guest
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| Posted: Thu May 11, 2006 8:07 am Post subject: Re: Problem with MainFrame class in JApplet |
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Oliver Wong wrote:
[CUT]
| Quote: |
Have you tried signing your applet?
- Oliver
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No, but just a few mintutes ago I solved the problem. Thanks however! 
Japs |
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Thomas Hawtin
Guest
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| Posted: Fri May 12, 2006 6:07 pm Post subject: Re: Problem with MainFrame class in JApplet |
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Japs wrote:
| Quote: | Oliver Wong wrote:
[CUT]
Have you tried signing your applet?
- Oliver
No, but just a few mintutes ago I solved the problem. Thanks however!
Japs
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Could you share with the rest of us what your problem was and how you
solved it? Other people are likely to come across the same issue.
Tom Hawtin
--
Unemployed English Java programmer
http://jroller.com/page/tackline/ |
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Japs
Guest
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| Posted: Sat May 13, 2006 11:07 am Post subject: Re: Problem with MainFrame class in JApplet |
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Instead of using
new MainFrame(applet, WINDOW_WIDTH, WINDOW_HEIGHT);
I use the add() inherited method. The init() method becomes like this
| Code: |
public void init()
{
url = getCodeBase();
String host = url.getHost();
OSESKeyNav applet = new OSESKeyNav( host );
add( applet );
}
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I hope this could help you! Thanks to all |
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