Problem w/ version 6 running older applet

Hi,
I downloaded and installed the new JDK version 6, and I tested my applet using the appletviewer. It shows the applet ok, but I get the following warning:
C:\Program Files\Java\jdk1.6.0_01\bin>appletviewer drawTest.html
Warning: Can't read AppletViewer properties file: C:\Documents and Settings\tk\.
hotjava\properties Using defaults. Here is my Java code and html code:
import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;
import javax.swing.JApplet;
public class drawTest extends JApplet
public void paint(Graphics g)
    Graphics2D gr2d = (Graphics2D) g;
    gr2d.draw(new Line2D.Double(10, 10, 10, 100));
    gr2d.draw(new Line2D.Double(10, 10, 40, 10));
    gr2d.draw(new Line2D.Double(40, 10, 40, 30));
    gr2d.draw(new Ellipse2D.Double(25, 25, 30, 30)); // head
    gr2d.draw(new Line2D.Double(40, 50, 40, 70));     // body
    gr2d.draw(new Line2D.Double(30, 50, 40, 60));     // left arm
    gr2d.draw(new Line2D.Double(50, 50, 40, 60));     // right arm
    gr2d.draw(new Line2D.Double(30, 80, 40, 70));     // left leg
    gr2d.draw(new Line2D.Double(40, 70, 50, 80));     // right leg
<html>
<applet code="drawTest.class" width="700" height="800">
</applet>
</html>
Am I gonna have a lot of problems adjusting to a new version of the JDK, like having to literally re-learn Java all over again? As always, your help is greatly appreciated.
Syster Tara

Thank you, Flounder!
No, I didn't at first, but I just did, and the applet ran fine! Here's a Dukie 4U!

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Panel south;
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import java.rmi.*;
import java.io.*;
import java.awt.event.*;
import java.awt.*;
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import java.rmi.*;
import java.io.*;
public interface ChatServer extends Remote {
public String register(ChatCallback object,
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* @param registeredString the string returned to the client upon registration.
public void unregister(String registeredString) throws RemoteException;
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6. ChatServerImplementation.java - implements Chatserver interface.
import java.rmi.*;
import java.util.*;
import java.rmi.server.*;
import java.io.*;
* A class that bundles the ChatCallback reference with a public name used
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class ChatClient {
private ChatCallback callback;
private String publicName;
ChatClient(ChatCallback cbk, String name) {
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// returns the name.
String getName() {
     return publicName;
// returns a reference to the callback object.
ChatCallback getCallback() {
     return callback;
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Hashtable clients;
// Tne number of current connections to the server.
private int currentConnections;
// The maximum number of connections to the server.
private int maxConnections;
// The output stream to write messages to.
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public ChatServerImplementation(int maxConnections) throws RemoteException {
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* Increment the counter keeping track of the number of connections.
synchronized boolean incrementConnections() {
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* Decrement the counter keeping track of the number of connections.
synchronized void decrementConnections() {
     if (currentConnections > 0) {
     currentConnections--;
* Register with the ChatServer, with a String that publicly identifies
* the chat client. A String that acts as a "magic cookie" is returned
* and is sent by the client on future remote method calls as a way of
* authenticating the client request.
* @param object The ChatCallback object to be used for updates.
* @param publicName The String the object would like to be known as.
* @return The actual String assigned to the object for removing, etc. or
* null if the client could not register.
public synchronized String register(ChatCallback object, String publicString) throws RemoteException {
     String assignedName = null;
     if (incrementConnections()) {
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     assignedName = "" + client.hashCode();
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* @param registeredString the string returned to the client upon registration.
public synchronized void unregister(String registeredString) throws RemoteException {
     ChatCallback cbk;
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          cbk = ((ChatClient)e.nextElement()).getCallback();
          cbk.addMessage("ChatServer",
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* Sets the logging stream.
* @param out the stream to log messages to.
protected void setLogStream(Writer out) throws RemoteException {
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* @param assignedName the string returned to the client upon registration.
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     out("Message: " + message);
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protected void out(String message){
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public static void main(String args[]) throws Exception {
     try {
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     System.setSecurityManager(new RMISecurityManager());
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     c.out("Bound in registry.");
     catch (Exception e) {
     System.out.println("ChatServerImplementation error:" +
                    e.getMessage());
     e.printStackTrace();
Using my own machine (connected to a network), I tried to test this one out by setting mine as the server and also the client. I did the following:
1. Compile the source code.
2. Use rmic to generate the skeletons and/or stubs from the ChatCallbackImplementation and ChatServerImplementation.
3. Start the rmiregistry with no CLASSPATH
4. Start the server successfully.
5. Start the applet using the AppletViewer command.
It worked fined.
The problem is when I ran the applet using the browser, IE explorer, the dialog boxes, frame and buttons did appear. I was able to do the part of logging on. But after that, the applet seemed to have hang. No message appeared that says I'm connected (which appeared using the appletviewer). I clicked the send button. No response.
I double-checked my classpath. I did have my classpath set correctly. I'm still trying to figure out the problem. Up to now, I don't have any clue what it is.
I will appreciate much if someone can help me figure what's could have possibly been wrong ....
Thanks a lot ...

Hi Domingo,
I had a similar problem running applet/rmi with IE.
Looking in IE..view..JavaConsole error messages my applet was unable to find java.rmi.* classes.
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( WinZip C:\WINDOWS\JAVA\Packages\9rl3f9ft.zip and others from msVM installed )
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I have downloaded and installed the latest msJVM for IE5. ( I think its included in later versions)
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site @http://alphaworks.ibm.com/aw.nsf/download/rmi which had similar download.
The download however didn't solve my problems. I was unable to install rmi.zip with
RmiPatch.exe install.
I solved this by extracting the class files from rmi.zip and installing them at C:\WINDOWS\JAVA\trustlib ( msJVM installation trusted classes lib defined in
registry HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Java VM\TrustedLibsDirectory )
This solved the problem. My rmi/applet worked.
Hope this helps you.
Chris
([email protected])

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     at pdfViewer.PdfApplet.init(PdfApplet.java:199)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)"
What is the problem ?
Please suggest solution for it?
Its urgent

I am trying to run the Applet in Tomcat server,
Could you post the code where you invoke the Applet? It sounds like you're saying you're trying to run the Applet as part of your server-side code. The other interpretation is that you are simply accessing the Applet through the browser that happens to be on the machine being used as the server.
Like I say, post the code that shows how you're trying to use the Applet "on the server".

Ever since Firefox 3, I have never been able to upgrade easily. I always get a message telling me I am replacing my version with an older version. How is that possible?

When I download the newest version (this time it was 5, but I had the same problem with 4) and I drag the Firefox Logo to my Applications folder in Mac OSX (10.6.7) I get a message saying I am replacing my version with an OLDER VERSION. How can this be? When I check the Firefox "About" tab, it tells me I am still using 4, so how, if I just dragged 5 to my Applications folder, can I be replacing 4 with an "older" version? Truth be told, my Firefox has never functioned properly since 4, and now I have little "Firefox hard drive icons" all over my desktop. What happened?
I am having trouble with Comcast's XFINITY and they told me to update and maximize my browser. I don't seem to be able to do that. I just downloaded Firefox 5.0, but my version still says 4.1.

When I download the newest version (this time it was 5, but I had the same problem with 4) and I drag the Firefox Logo to my Applications folder in Mac OSX (10.6.7) I get a message saying I am replacing my version with an OLDER VERSION. How can this be? When I check the Firefox "About" tab, it tells me I am still using 4, so how, if I just dragged 5 to my Applications folder, can I be replacing 4 with an "older" version? Truth be told, my Firefox has never functioned properly since 4, and now I have little "Firefox hard drive icons" all over my desktop. What happened?
I am having trouble with Comcast's XFINITY and they told me to update and maximize my browser. I don't seem to be able to do that. I just downloaded Firefox 5.0, but my version still says 4.1.

Problem w/ version 6 running older applet

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