Java Webstart in Windows 7

I have a Java Webstart application running on a Windows 7 Laptop. An Apache Tomcat webserver is also installed on this laptop so everything is self contained. When the laptop is not connected to a network and I start the application, Webstart gives me two instances of the application. When the laptop is connected to a network, I get one instance.
I also have an identical installation on a Windows Vista PC. Irrespective of whether or not this PC is connected to a network, I always get one instance of the application when I start it.
I would like to hear from anyone who has noticed similar behaviour and whether they have an explanation and whether they can advise if this is a 'bug' or a 'feature'.

Thanks a lot for your reply.
but no luck. still nothing happens.... javaws just dies without logging anything?
maybe its a security problem?
here is the system event log again:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2012-10-01T18:41:12.000000000Z" />
<EventRecordID>3719</EventRecordID>
<Channel>Application</Channel>
<Computer>XXXXXX</Computer>
<Security />
</System>
- <EventData>
<Data>javaws.exe</Data>
<Data>10.7.2.10</Data>
<Data>503d8a47</Data>
<Data>javaws.exe</Data>
<Data>10.7.2.10</Data>
<Data>503d8a47</Data>
<Data>c0000417</Data>
<Data>00011d9c</Data>
<Data>16c0</Data>
<Data>01cda004542d62eb</Data>
<Data>C:\Program Files (x86)\Java\jre7\bin\javaws.exe</Data>
<Data>C:\Program Files (x86)\Java\jre7\bin\javaws.exe</Data>
<Data>92310d7c-0bf7-11e2-bd20-6cf049e5f1f7</Data>
</EventData>
</Event>
Edited by: 962394 on 01.10.2012 11:44

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Edited by: chenthor on Apr 1, 2010 8:44 AM
Edited by: chenthor on Apr 1, 2010 8:51 AM

Hi All,
So we've been battling this bug for a year or so now, and I've come up with a solution to the webstart bugs
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6967414
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6805618
(see the bugs for more details)
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import java.io.IOException;
import java.lang.ref.SoftReference;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.JarURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import java.util.jar.JarFile;
* A utility class for working around the java webstart jar signing/security bug
* see http://bugs.sun.com/view_bug.do?bug_id=6967414 and http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6805618
* @author Scott Chan
public class JarSignersHardLinker {
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     * the 1.6.0 update where this problem first occurred
    private static final int PROBLEM_JRE_UPDATE = 19;
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            e.printStackTrace();
        } catch (InvocationTargetException e) {
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org.omg.CORBA.ORBPackage.InvalidName
     at com.inprise.vbroker.orb.ORB.resolve_initial_references(ORB.java:943)
I believe it is still related to the jvm properties:
<property name="vbroker.orb.initRef" value="NameService=corbaloc::10.35.55.82:20005/NameService"/>
And know that when I used "-Dvbroker.orb.initRef=NameService=corbaloc::10.35.55.82:20005/NameService" in the windows batch file, the client runs ok.
Is this indicating that there is the limitation of using the webstart to invoke CORBA client?
Any further help would be very appreciated!
Victor

JAVA Webstart preferences panel doesn't show

Hello,
I am running on Windows 2000 and I have installed JAVA Webstart including JRE 1.3.1_01. After the installation I have added 'javaws.cfg.proxy.setting=NONE' into my javaws.cfg file, which enabled me to finally start the JAVA Webstart application manager. But- I can't get the preferences panel to show up? When I click on the preferences- tab basically nothing happens!
I have already tried to deinstall WebStart and install it again, but this didn't solve the problem. Is anybody out there, who had this problem as well and knows how to solve it?

Hello,
I have now been able to add an entry to the 'javaws.cfg' files (javaws.cfg.showConsole=true), which now brings up the JAVA Console. When I now press the 'preferences' options to bring up the JAVAWS preferences panel, I get the following errors displayed:
java.lang.NullPointerException
at com.sun.javaws.proxy.WinInternetProxy.getNSVersion(Unknown Source)
at com.sun.javaws.proxy.WinInternetProxy.getBrowserInfo(Unknown Source)
at com.sun.javaws.ui.prefs.GeneralPanel.<init>(Unknown Source)
at com.sun.javaws.ui.prefs.WinSubcontrollerCreator.getSubcontroller(Unknown Source)
at com.sun.javaws.ui.prefs.PrefsPanel.createSubcontroller(Unknown Source)
at com.sun.javaws.ui.prefs.PrefsPanel.access$0(Unknown Source)
at com.sun.javaws.ui.prefs.PrefsPanel$1.createSubcontroller(Unknown Source)
at com.sun.javaws.ui.general.AbstractController.setActiveSubcontrollerIndex(Unknown Source)
at com.sun.javaws.ui.prefs.PrefsPanel.setSelectedTab(Unknown Source)
at com.sun.javaws.ui.prefs.PrefsPanel.<init>(Unknown Source)
at com.sun.javaws.ui.player.Player$4.actionPerformed(Unknown Source)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed (Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Is there any way to get around this?
Might it have something to do, that I am running on Windows Internet Explorer V.6?
Please, help me!
THANKS!

Java installer in Windows Vista: error 1721

Hi,
I cant install java SE in Windows Vista. I get always this error:
error 1721. There is a probleme with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor.
Anyone knows how I can solve it? I tryed with other java versions but I get the same error.
Thanks in advance.

If all else fails, your Vista could just be screwy.
If you're willing to go that far, and you've exhausted all other options, you could try reformatting and reinstalling Vista. (Or even XP, since it's way more stable. :D)
At any rate, this doesn't seem to be the file's problem, as plenty of people have gotten it working.
Have you installed any ... "distasteful" software on your computer, or tweaked stuff like a hardcore techie? Because it's quite easy to screw with Windows. :)

How do i monitor performance in the system of a Java program in Windows XP?

I want to record the CPU usage and Memory usage on an hourly basis programatically, for an already running java class in Windows XP environment for the purpose of testing the Java class. The recording has to be done independent of the java class.By Cpu usage and Memory usage , i need to know how much of the computer's memory and CPU has been used by the java class.
I tried the HPROF tool available with J2SE 5.0, but it gives the details of each of the functions' usage in the program's allocated space in memory. moreover, it is not independent of the execution of the class.
The other option is to make use of the Performance tool available in Windows Xp->Administrative tools. This is a complex procedure, and i am not sure of how to proceed in this direction.

You can use the windows performance monitor (perfmon.exe / perfmon.msc). I don't know wther it is also included in the XP Home Edition. But this is the tool you are looking for. It can display the information in realtime but also can write to a protocoll.
Here's a shor description of what to do (i have a german windows so i'm more or less guessing the english terms)
- Start perfmon.msc
- In the tree on the you can see "systemonitor" (the realtime display) and "performance protocolls and warnings"
- open "performance protocalls and warnings", the first sub element should be something like"performance protocalls" or "performance indicator"
- open the context menu for it and create a new protocoll settings.
- add the information to it you are interested in and make other changes if you want
- start the new configuration
once you have the information you can display it it in the systemmonitor by selecting "display information from protocal" from the toolbar
It will take some time till you know what you are doing (and most of the information the performance monitor is useless to 99% of the people). But its a quite usfull tool once you know how to use it

How to start java.exe from a java program in windows ?

Hi,
I did like to know, if its possible to run java.exe from a java program on windows ? The java.exe should be visible from checking the processes that are currently running using the Task Manager on windows.

Runtime.getRuntime().exec("java Sample");

Jar files download problems in Java Webstart with JRE 1.6

We have encountered a few problems in Java Webstart with JRE 1.6
In JRE 1.5, the jar files are getting downloaded onto the client
machine with it's original names.
Example :
Server File Name : acm.jar
Client File Name : RMacm.jar
But in JRE 1.6, the jar files are getting downloaded with improper file names.
Example :
Server File Name : acm.jar
Client File Name : 4fb074cc-66fc7407
Moreover the path itself seems to be invalid.
Example Path :
JRE 1.5 path:
C:\Documents and Settings\Administrator\Application
Data\Sun\Java\Deployment\cache\javaws\https\D17.16.23.11\P443\DMtest\DMwebStart
JRE 1.6 path:
C:\Documents and Settings\Administrator\Application
Data\Sun\Java\Deployment\cache\6.0\12
Due to this, we are facing Classpath problems.
What changes do we have to make to the code, for Java
Webstart to work ?
We are using JBoss 4.0.4 and JDK 1.5 in the Server
On the client machine, we have IE 6 and JRE 1.6.01
Help would be appreciated.

Ask your Java Web Start question at:
http://forum.java.sun.com/forum.jspa?forumID=38

Opening a Word Document with a Java program in Windows

When running a Java program in Windows, is it possible to have a button where when it is clicked it will open a Word document?
If so, is it hard and can someone tell me how to do it??
Thanks

try this instead of Excel.exe you have to use Word.exe
1. Declare your button
               JButton butexlcom = new JButton("Carnet Offre");
               butexlcom.addActionListener( new ButExlCommercial(msgout));
               butexlcom.setBounds(215,510,110,30);
               c.add( butexlcom );
2. run your word document.
class ButExlCommercial implements ActionListener {
     private JTextArea msgout;
     public ButExlCommercial( JTextArea msg) {
     msgout = msg;
     public void actionPerformed( ActionEvent e ) {
          try {
               Runtime.getRuntime().exec("c:\\Program Files\\Microsoft Office\\Office\\Excel.exe NameWordDocument");
          catch(Exception en) {
               msgout.append( "\n*** PROBLEME WORD ***\n" );
}

Java Webstart in Windows 7

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