Problem with JRE and Yahoo applets
Hi, I couldn't find any answer for this anywhere else...
Whenever I try to play a Yahoo game, certain windows will "shake". For example, if I log into yahoo, then go to play their spades game, the applet will load without any problem. The game room will appear and everything seems to be fine. But if I click on the Start Panel, the borders of the Start menu will "shake" If I right click on anything, that menu will also shake. This only occurs while JRE is running the yahoo applet. Once I leave the yahoo game, everything returns to normal. If I use IE and MSVM, this problem does not occur. This problem does not seem to occur with other instances of Java either. Only Yahoo games. I tried searching Yahoo for an answer to this, but didn't find anything. When I tried getting help from them, they replied with an email to update Java and/or my browsers. Well, I am using version 1.4.2_04 of java, and have IE6 updated as of today. Also, I am using Opera version 7.54 and Firefox 0.93. This problem with Java and Yahoo occurs no matter which browser I am using. The only way to keep this from happening seems to be to use IE with MSVM. Any ideas?
That page does apply. Everything that you have written indicates conclusively that the Yahoo game you're playing is the source of the problem. The fact that it works with the MS jvm but not with the Sun jvm, that the Sun jvm works with other Java applets, etc all say the same thing - that Yahoo applets wer/are coded to work with the MS jvm, which uses MS extensions in violation of the Sun/MS licensing agreements. The statement at the bottom of the page is proof positive - your spades game is not listed by Yahoo as being fixed.
"07/17/03 - From Yahoo! Customer Care:
We have deployed a fix for the incompatibilities with the Sun JVM� in the following games:
Chess Gin Cribbage Euchre Bridge
Hearts Toki Toki Boom Graffiti Pool
We plan to upgrade the rest of the games on an ongoing basis. "
The Yahoo applet is the problem and requires repair...
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Hi all, ;)
First of all, sorry about my poor English.
I have a problem with Swing and Threads, I hope you help me (because I'm in the firsts two weeks in my new job)
I have two classes:
Form1: Its a JPanel class with JProgressBar and JLabel inside.
FormularioApplet: (the main) Its a JPanel class with a form1 inside.
I have to download a file from a server and show the progress of the download in the JProgressBar. To make it I do this:
In Form1 I make a Thread that update the progress bar and gets the fole from the server.
In FormularioApplet (the main) I call to the method getDownloadedFile from Form1 to get the File.
THE PROBLEM:
The execution of FormularioApplet finishes before the Thread of Form1 (with download the file) download the file. Then, when I call in FormularioApplet the variable with the file an Exception: Exception in thread "AWT-EventQueue-1" java.lang.NullPointerException is generated.
First main begins his execution, then call to Form1 (a thread) then continues his execution and when the execution is finished ends the execution os Form1 and his thread.
How can I do for main class call the function and the Thread download his file after main class assign the file of return method?
How can I pass information froma class include an a main class. Form1 can't send to main (because main class made a Form1 f1 = new Form1()) any information from his end of the execution. I think if Form1 can say to main class that he finishes is job, then main class can gets the file.
I put in bold the important lines.
Note: My level of JAVA, you can see, is not elevated.
THANKS A LOT
Form1 class:
package es.cambrabcn.signer.gui;
import java.awt.HeadlessException;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.StringTokenizer;
import java.util.Vector;
import javax.swing.SwingUtilities;
public class Form1 extends javax.swing.JPanel {
//Variables relacionadas con la clase original DownloadProgressBar
private InputStream file;
private int totalCicles;
private int totalFiles;
private int currentProgress;
private SwingWorker worker;
private ByteArrayOutputStream byteArray;
private boolean done;
/** Creates new form prueba */
public Form1() {
initComponents();
this.byteArray = new ByteArrayOutputStream();
progressBar.setStringPainted(true);
//this.totalFiles = totalFiles;
currentProgress = 0;
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
// <editor-fold defaultstate="collapsed" desc=" C�digo Generado ">
private void initComponents() {
label1 = new javax.swing.JLabel();
progressBar = new javax.swing.JProgressBar();
statusLabel = new javax.swing.JLabel();
setBackground(new java.awt.Color(255, 255, 255));
setMaximumSize(new java.awt.Dimension(300, 150));
setMinimumSize(new java.awt.Dimension(300, 150));
setPreferredSize(new java.awt.Dimension(300, 150));
label1.setFont(new java.awt.Font("Arial", 1, 18));
label1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
label1.setText("Barra de progreso");
statusLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
statusLabel.setText("Cargando");
org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
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.add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
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.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(statusLabel)
.addContainerGap(73, Short.MAX_VALUE))
}// </editor-fold>
// Declaraci�n de variables - no modificar
private javax.swing.JLabel label1;
private javax.swing.JProgressBar progressBar;
private javax.swing.JLabel statusLabel;
// Fin de declaraci�n de variables
public byte[] getDownloadedFile(String documentToSign){
//Variables locales
byte puente[] = null;
try{
//Leemos el documento a firmar
StringTokenizer st = new StringTokenizer(documentToSign, ";");
Vector<URL> fileURL = new Vector<URL>();
HttpSender sender = new HttpSender(null);
//Introducimos la lista de URLs de archivos a bajar en el objeto Vector
for(; st.hasMoreTokens(); fileURL.add(new URL(st.nextToken())));
//Para cada URL descargaremos un archivo
for(int i = 0; i < fileURL.size(); i++) {
file = sender.getMethod((URL)fileURL.get(i));
if(file == null) {
Thread.sleep(1000L);
throw new RuntimeException("Error descarregant el document a signar.");
System.out.println("Form1 Dentro de getDownloadFile, Antes de startDownload()");
//Fijamos el valor del n�mero de ciclos que se har�n seg�n el tama�o del fichero
this.totalCicles = sender.returnCurrentContentLength() / 1024;
this.progressBar.setMaximum(totalCicles);
//Modificamos el texto del JLabel seg�n el n�mero de fichero que estemos descargando
this.statusLabel.setText((new StringBuilder("Descarregant document ")).append(i + 1).append(" de ").append(fileURL.size()).toString());
statusLabel.setAlignmentX(0.5F);
*//Iniciamos la descarga del fichero, este m�todo llama internamente a un Thread*
*this.startDownload();*
*System.out.println("Form1 Dentro de getDownloadFile, Despu�s de startDownload()");*
*//if (pane.showProgressDialog() == -1) {*
*while (!this.isDone()){*
*System.out.println("No est� acabada la descarga");*
*if (this.isDone()){*
*System.out.println("Thread ACABADO --> Enviamos a puente el archivo");*
*puente = this.byteArray.toByteArray();*
*System.out.println("Form1 getDownloadFile() tama�o puente: " + puente.length);*
*else{*
*Thread.sleep(5000L);*
*// throw new RuntimeException("Proc�s de desc�rrega del document a signar cancel�lat.");*
catch (HeadlessException e) {
//javascript("onSignError", new String[] {
//(new StringBuilder("UI: ")).append(e.getMessage()).toString()});
e.printStackTrace();
catch (MalformedURLException e) {
//javascript("onSignError", new String[] {
//(new StringBuilder("CMS: ")).append(e.getMessage()).toString()});
e.printStackTrace();
catch (HttpSenderException e) {
//javascript("onSignError", new String[] {
//(new StringBuilder("CMS: ")).append(e.getMessage()).toString()});
e.printStackTrace();
catch (InterruptedException e) {
//javascript("onSignError", new String[] {
//(new StringBuilder("CMS: ")).append(e.getMessage()).toString()});
e.printStackTrace();
//System.out.println("Form1 getDownloadFile() tama�o puente: " + puente.length);
return puente;
public void updateStatus(final int i){
Runnable doSetProgressBarValue = new Runnable() {
public void run() {
progressBar.setValue(i);
SwingUtilities.invokeLater(doSetProgressBarValue);
public void startDownload() {
System.out.println("Form1 Inicio startDownload()");
System.out.println("Form1 Dentro de startDownload, antes de definir la subclase SwingWorker");
System.out.println(done);
worker = new SwingWorker() {
public Object construct() {
System.out.println("Form1 Dentro de startDownload, dentro de construct(), Antes de entrar en doWork()");
return doWork();
public void finished() {
System.out.println("Form1 Dentro de startDownload, dentro de finished(), Antes de asignar done = true");
System.out.println(done);
done = true;
System.out.println("Form1 Dentro de startDownload, dentro de finished(), Despu�s de asignar done = true");
System.out.println(done);
statusLabel.setText("Completado, tama�o del archivo: " + (byteArray.size() / 1024) + "KB");
System.out.println("Form1 Dentro de startDownload, antes de worker.start()");
worker.start();
System.out.println("Form1 Dentro de startDownload, antes de salir de startDownload");
System.out.println(done);
System.out.println("Form1 Dentro de startDownload, despu�s de worker.start()");
* M�todo doWork()
* Este m�todo descarga por partes el archivo que es necesario descargar, adem�s de actualizar
* la barra de carga del proceso de carga de la GUI.
public Object doWork() {
System.out.println("Form1 doWork() this.byteArray.size(): " + this.byteArray.size());
try {
byte buffer[] = new byte[1024];
for(int c = 0; (c = this.file.read(buffer)) > 0;) {
this.currentProgress++;
updateStatus(this.currentProgress);
this.byteArray.write(buffer, 0, c);
this.byteArray.flush();
this.file.close();
this.currentProgress = totalCicles;
updateStatus(this.currentProgress);
} catch(IOException e) {
e.printStackTrace();
System.out.println("Form1 doWork() FINAL this.byteArray.size(): " + this.byteArray.size());
//done = true;
System.out.println("AHORA DONE = TRUE");
return "Done";
public boolean isDone() {
return this.done;
FormularioApplet class (main)
package es.cambrabcn.signer.gui;
import java.awt.Color;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URL;
import java.security.Security;
import java.util.StringTokenizer;
import java.util.Vector;
import javax.swing.SwingUtilities;
import netscape.javascript.JSObject;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import sun.security.provider.Sun;
import be.cardon.cryptoapi.provider.CryptoAPIProvider;
public class FormularioApplet extends java.applet.Applet {
//Variables globales
int paso = 0;
private static final String JS_ONLOAD = "onLoad";
private static final String JS_ONLOADERROR = "onLoadError";
private static final int SIGNATURE_PDF = 1;
private static final int SIGNATURE_XML = 2;
//private String signButtonValue;
private int signatureType;
private String documentToSign;
private String pdfSignatureField;
private Vector<String> outputFilename;
private Color appletBackground = new Color(255, 255, 255);
private Vector<byte[]> ftbsigned;
* Initializes the applet FormularioApplet
public void init(){
try {
SwingUtilities.invokeLater(new Runnable() {
//SwingUtilities.invokeAndWait(new Runnable() {
//java.awt.EventQueue.invokeAndWait(new Runnable() {
public void run() {
try{
readParameters();
initComponents();
catch(FileNotFoundException e){
javascript(JS_ONLOADERROR, new String[] {
(new StringBuilder("Init: ")).append(e.getMessage()).toString()});
e.printStackTrace();
catch(IOException e) {
javascript(JS_ONLOADERROR, new String[] {
(new StringBuilder("Init: ")).append(e.getMessage()).toString()});
e.printStackTrace();
catch (Exception e) {
javascript(JS_ONLOADERROR, new String[] {
(new StringBuilder("Init: ")).append(e.getMessage()).toString()});
e.printStackTrace();
javascript(JS_ONLOAD, null);
/** This method is called from within the init() method to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
// <editor-fold defaultstate="collapsed" desc=" C�digo Generado ">
private void initComponents() {
this.setSize(350, 450);
appletPanel = new javax.swing.JPanel();
jPanel1 = new javax.swing.JPanel();
jTextField1 = new javax.swing.JLabel();
jPanel2 = new javax.swing.JPanel();
label = new javax.swing.JLabel();
jPanel3 = new javax.swing.JPanel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
setLayout(new java.awt.BorderLayout());
appletPanel.setBackground(new java.awt.Color(255, 255, 255));
appletPanel.setMaximumSize(new java.awt.Dimension(350, 430));
appletPanel.setMinimumSize(new java.awt.Dimension(350, 430));
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jPanel1.setBackground(new java.awt.Color(255, 255, 255));
jPanel1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 102, 204)));
jTextField1.setFont(new java.awt.Font("Arial", 1, 18));
jTextField1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
jTextField1.setText("SIGNATURA ELECTRONICA");
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jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
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.add(jPanel1Layout.createSequentialGroup()
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.addContainerGap())
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jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
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label.setIcon(new javax.swing.ImageIcon("C:\\java\\workspaces\\cambrabcn\\firmasElectronicas\\logo.gif"));
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jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jPanel2Layout.createSequentialGroup()
.addContainerGap()
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jPanel2Layout.setVerticalGroup(
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jPanel3.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 102, 204)));
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//this.jButton2.setVisible(false);
jButton1.setText("Seg\u00fcent");
jButton1.setAlignmentX(0.5F);
//Cargamos el primer formulario en el JPanel2
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//this.jButton2.setVisible(true);
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
jButton2.setText("Cancel\u00b7lar");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
org.jdesktop.layout.GroupLayout jPanel3Layout = new org.jdesktop.layout.GroupLayout(jPanel3);
jPanel3.setLayout(jPanel3Layout);
jPanel3Layout.setHorizontalGroup(
jPanel3Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel3Layout.createSequentialGroup()
.addContainerGap()
.add(jButton1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 94, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
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jPanel3Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel3Layout.createSequentialGroup()
.addContainerGap()
.add(jPanel3Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(jButton2)
.add(jButton1))
.addContainerGap())
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appletPanel.setLayout(appletPanelLayout);
appletPanelLayout.setHorizontalGroup(
appletPanelLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, appletPanelLayout.createSequentialGroup()
.addContainerGap()
.add(appletPanelLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel3, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addContainerGap())
appletPanelLayout.setVerticalGroup(
appletPanelLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, appletPanelLayout.createSequentialGroup()
.addContainerGap()
.add(jPanel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jPanel2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
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add(appletPanel, java.awt.BorderLayout.CENTER);
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this.destroy();
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
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// Declaraci�n de variables - no modificar
private javax.swing.JPanel appletPanel;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
private javax.swing.JLabel jTextField1;
private javax.swing.JLabel label;
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* M�todo que inicializa los valores de los par�metros internos, recibidos por par�metro.
private void readParameters() throws FileNotFoundException, IOException {
???????????????? deleted for the forum
addSecurityProviders();
* M�tode loadFirstForm
* Aquest m�tode carrega a jPanel2 el formulari que informa sobre la c�rrega dels arxius
private void loadFirstForm(){
//Form1 f1 = new Form1(stream, i + 1, fileURL.size(), sender.returnCurrentContentLength(), appletBackground);
//Form1 f1 = new Form1(fileURL.size(), sender.returnCurrentContentLength());
Form1 f1 = new Form1();
//Lo dimensionamos y posicionamos
f1.setSize(310, 150);
f1.setLocation(10, 110);
//A�adimos el formulario al JPanel que lo contendr�
this.jPanel2.add(f1);
//Validem i repintem el JPanel
jPanel2.validate();
jPanel2.repaint();
//Descarreguem l'arxiu a signar
*System.out.println("FormularioApplet Dentro de loadFirstForm(), antes de llamar a getDownloadFile()");*
*byte obj[] = f1.getDownloadedFile(this.documentToSign);*
if (obj == null){
System.out.println("Lo que devuelve f1.getDownloadedFile(this.documentToSign) es NULL");
else{
System.out.println("Lo que devuelve f1.getDownloadedFile(this.documentToSign) NO es NULL");
System.out.println("obj: " + obj.length);
this.ftbsigned.add(obj);
System.out.println("FormularioApplet Dentro de loadFirstForm(), despu�s de llamar a getDownloadFile()");
//Indicamos que el primer paso ya se ha efectuado
this.paso++;
* M�tode changeForms
* Aquest m�tode carrega a jPanel2 un formulari concret segons el valor de la variable global "paso"
private void changeForms(int paso){
/*A cada paso se cargar� en el JPanel y formulario diferente
* Paso previo: Se realiza en la inicializaci�n, carga el formulario, descarga el archivo y muestra la barra de carga.
* Case 1: Se carga el formulario de selecci�n de tipo de firma.
* Case 2: Se carga el formulario de datos de la persona que firma.
this.paso = paso;
switch(paso){
case 1:
//Creamos un objeto de formulario (seleccion de tipo de firma)
Form2 f2 = new Form2();
//Lo dimensionamos y posicionamos
f2.setSize(310, 185);
f2.setLocation(10, 110);
//Quitamos el formulario 1 y a�adimos el formulario 2 al JPanel
this.jPanel2.remove(1);
this.jPanel2.add(f2);
//Validem i repintem el JPanel
jPanel2.validate();
jPanel2.repaint();
//Modificamos el contador de pasos.
this.paso++;
break;
case 2:
//Creamos un objeto de formulario (seleccion de tipo de firma)
Form3 f3 = new Form3();
//Lo dimensionamos y posicionamos
f3.setSize(310, 175);
f3.setLocation(15, 130);
//Quitamos el formulario 1 y a�adimos el formulario 3 al JPanel
this.jPanel2.remove(1);
this.jPanel2.add(f3);
//Validem i repintem el JPanel
jPanel2.validate();
jPanel2.repaint();
//Modificamos el texto del bot�n y el contador de pasos.
this.jButton1.setText("Finalizar");
this.paso++;
break;
default:
//Finalizar el Applet
//C�digo que se encargue de guardar el archivo en el disco duro del usuario
break;
private void addSecurityProviders() throws FileNotFoundException, IOException {
Security.addProvider(new CryptoAPIProvider());
if (signatureType == SIGNATURE_PDF) {
Security.addProvider(new BouncyCastleProvider());
else {
Security.addProvider(new Sun());
private File createOutputFile(String filename, int index) {
return new File((String)outputFilename.get(index));
protected Object javascript(String function, String args[]) throws RuntimeException {
//Remove
if (true) return null;
try {
Vector<String> list = new Vector<String>();
if(args != null) {
for(int i = 0; i < args.length; i++) {
list.addElement(args);
if(list.size() > 0) {
Object objs[] = new Object[list.size()];
list.copyInto(objs);
return JSObject.getWindow(this).call(function, objs);
} catch(UnsatisfiedLinkError e) {
e.printStackTrace();
throw new RuntimeException((new StringBuilder()).append(e).append("\nFunci�: ").append(function).toString());
} catch(Throwable e) {
e.printStackTrace();
throw new RuntimeException((new StringBuilder()).append(e).append("\nFunci�: ").append(function).toString());
return JSObject.getWindow(this).call(function, new Object[0]);
Edited by: Kefalegereta on Oct 31, 2007 3:54 AM
Edited by: Kefalegereta on Oct 31, 2007 4:00 AMLook at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
Additional things to try.
Try this first. Turn Off your iPad. Then turn Off (disconnect power cord) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
Change the channel on your wireless router. Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
Another thing to try - Go into your router security settings and change from WEP to WPA with AES.
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
Cheers, Tom -
Problem with JFrame and busy/wait Cursor
Hi -- I'm trying to set a JFrame's cursor to be the busy cursor,
for the duration of some operation (usually just a few seconds).
I can get it to work in some situations, but not others.
Timing does seem to be an issue.
There are thousands of posts on the BugParade, but
in general Sun indicates this is not a bug. I just need
a work-around.
I've written a test program below to demonstrate the problem.
I have the problem on Solaris, running with both J2SE 1.3 and 1.4.
I have not tested on Windows yet.
When you run the following code, three JFrames will be opened,
each with the same 5 buttons. The first "F1" listens to its own
buttons, and works fine. The other two (F2 and F3) listen
to each other's buttons.
The "BUSY" button simply sets the cursor on its listener
to the busy cursor. The "DONE" button sets it to the
default cursor. These work fine.
The "SLEEP" button sets the cursor, sleeps for 3 seconds,
and sets it back. This does not work.
The "INVOKE LATER" button does the same thing,
except is uses invokeLater to sleep and set the
cursor back. This also does not work.
The "DELAY" button sleeps for 3 seconds (giving you
time to move the mouse into the other (listerner's)
window, and then it behaves just like the "SLEEP"
button. This works.
Any ideas would be appreciated, thanks.
-J
import java.awt.BorderLayout;
import java.awt.Cursor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class BusyFrameTest implements ActionListener
private static Cursor busy = Cursor.getPredefinedCursor (Cursor.WAIT_CURSOR);
private static Cursor done = Cursor.getDefaultCursor();
JFrame frame;
JButton[] buttons;
public BusyFrameTest (String title)
frame = new JFrame (title);
buttons = new JButton[5];
buttons[0] = new JButton ("BUSY");
buttons[1] = new JButton ("DONE");
buttons[2] = new JButton ("SLEEP");
buttons[3] = new JButton ("INVOKE LATER");
buttons[4] = new JButton ("DELAY");
JPanel buttonPanel = new JPanel();
for (int i = 0; i < buttons.length; i++)
buttonPanel.add (buttons);
frame.getContentPane().add (buttonPanel);
frame.pack();
frame.setVisible (true);
public void addListeners (ActionListener listener)
for (int i = 0; i < buttons.length; i++)
buttons[i].addActionListener (listener);
public void actionPerformed (ActionEvent e)
System.out.print (frame.getTitle() + ": " + e.getActionCommand());
if (e.getActionCommand().equals ("BUSY"))
frame.setCursor (busy);
else if (e.getActionCommand().equals ("DONE"))
frame.setCursor (done);
else if (e.getActionCommand().equals ("SLEEP"))
frame.setCursor (busy);
try { Thread.sleep (3000); } catch (Exception ex) { }
frame.setCursor (done);
System.out.print (" finished");
else if (e.getActionCommand().equals ("INVOKE LATER"))
frame.setCursor (busy);
SwingUtilities.invokeLater (thread);
else if (e.getActionCommand().equals ("DELAY"))
try { Thread.sleep (3000); } catch (Exception ex) { }
frame.setCursor (busy);
try { Thread.sleep (3000); } catch (Exception ex) { }
frame.setCursor (done);
System.out.print (" finished");
System.out.println();
Runnable thread = new Runnable()
public void run()
try { Thread.sleep (3000); } catch (Exception ex) { }
frame.setCursor (done);
System.out.println (" finished");
public static void main (String[] args)
BusyFrameTest f1 = new BusyFrameTest ("F1");
f1.addListeners (f1);
BusyFrameTest f2 = new BusyFrameTest ("F2");
BusyFrameTest f3 = new BusyFrameTest ("F3");
f2.addListeners (f3); // 2 listens to 3
f3.addListeners (f2); // 3 listens to 2I've had the same problems with cursors and repaints in a swing application, and I was thinking of if I could use invokeLater, but I never got that far with it.
I still believe you would need a thread for the time consuming task, and that invokeLater is something you only need to use in a thread different from the event thread. -
Problem with installing and running some applications or drivers
When installing and installing some items, towards the end of the installation I get this message:
/System/Library/Extensions/comcy_driver_USBDevice.kext
*was installed improperly and cannot be used. Please try reinstalling it or contact product's vendor for update*
The end result is that some things do not seem to work properly, such as my HP printer. Would anybody have any ideas on how to fix this problem?Thank you for your response. Originally, I had a problem with Airport and ended up reinstalling Snow Leopard. Since then, when downloading upgrades etc, such as HP printer drivers, iTunes etc., towards the end of the download when its running the script, I get this message: /System/Library/Extensions/comcy_driver_USBDevice.kext
+was installed improperly and cannot be used. Please try reinstalling it or contact product's vendor for update+
Sometimes, the download hangs and is unable to complete. The main problem I've encountered so far with an application is when I use the printer to scan an image via Preview, it's blank: there's nothing there. -
Problems with outlook and address book contacts: my outlook contacts had around 3,000 entries. Outlook duplicated entries and have now 340,000. I reinstalled microsoft office and, thus, outlook, and reinstalled mac OS X system and applications. While I managed to delete outlook contacts so that I can re-sync with my blackberry, the contacts at Mac Address Book were not deleted and still have over 340,000 entries. I do not mind deleting all contacts since I have back up, but I have not been able to delete them. Also, when I go at Address Book and try to delete or merge duplicated entries, the system takes forever and never ends because of such large amount of entries. Worse, when I do so I run out of RAM memory.
My Macbook pro is just 2 months old.
What should I do? Is there a way to delete my Mac Address Book without having the problem above?
Many thanks
Regiszlatan24 wrote:
For solving out troubles connected with corrupted or lost address book you may use address book recovery. It owns various features such as restoring wab files, it working under any Windows OS. The utility has modern and easy to use interface due to almost every experienced users.
If it is a windows problem it's not going to run on the OP's MacBook Pro -
Problems with Safari and Firefox (HTTP?)
Problems with Safari and Firefox (HTTP?)
On a laptop G4, 10.5.8 and Safari 5.02 I experience the following:
On the account of my oldest daughter everything works fine, i.e. wireless internet works and no problems with mail or safari.
On the same laptop, on the account of my other daughter, the wireless is OK, she can mail etc. But safari nor firefox works. It says: can’t find server (whatever site) and in the activity window it looks if safari tries to open files (in the safari preferences-folder) in stead of http. Same applies to Firefox, so maybe it has more to do with HTTP in general?
What goes wrong? What to do? I tried the following on the host terminal (tips from Apple)
defaults write com.apple.safari WebKitDNSPrefetchingEnabled -boolean false
and
defaults delete com.apple.safari WebKitDNSPrefetchingEnabled
but that did not help,
NanneI'm still wondering why it happens now at this moment in time...
PC does seem to be a bit odd & inconsistent, the few times I've tested with it, at least so far as we content filtering goes; and if I remember rightly, you're not the first to report previously ok settings suddenly preventing some or all internet until pc is switched off altogether.
It may work when re-enabled -
Haven't been able to use pages for a while. Keep getting following message. Have tried reinstalling iWork, but no luck. Same problems with Keynote and Numbers/
Have you moved Pages from its installed location? Or just dragged a copy to your current system?
It can't find some of its resources apparently.
Peter -
Problem with DMGs and error: "No Mountable File Systems"
Problem with DMGs and error: "No Mountable File Systems"
The files are not corrupt. The problem is occurring with all DMGs that are apparently formatted in MS-DOS FAT16. No the file will not mount with Disk utility or any other disk mounter programs I have found.
This is now the second time this occurred and now effects my MBP and my iMac. First time i spent days with Apple support and the only solution was ultimately back up the data, reformat the HD, start over from scratch and reload everything. That lasted about a month before the problem resurfaced and is now an issue on both iMac and MBP.
I tried to identify all the programs I installed immediately before the error, as I am convinced it is the result of a software conflict.
Recent programs includes:
1) upgrading from Parallels 5.5 to 6.0 on both machines.
2) using an HP secure II usb drive and setting up a secure disk.
3) installing new itunes 10
4) new update to Flip For Mac.
The files affected are downloaded dmgs, including personal brain and google earth, both which are formatted in FAT16.
Any help or thoughts? Apple has now spent hours trying and they say i now have to reformat and wipe and start over. That is unacceptable and based on pasted experience the problem is likely to repeat itself. having to wipe and rebuild a HD ever month is not an solution. i need to fid the root problem.
In the meantime, anyone got a real solution on how to extract the data for a DMG using a different method?
Message was edited by: remaiaWhere you able to find the solution, i am having the same problem, all was fine till i install some programs only same one i saw did we both did was flip4mac i uninstalled it but the problem is still there, i also restored and erased the hardrive but im not up to doing that all over again. If you found anything out let me know i would greatly appreciate it
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