Uninstall and shortcut in extensions

Question

Hi all!
I've been working with JWS since one week and I'm trying to deploy an application in some computers and I don't found a way to uninstall them correctly.
The application will need to install some resources in the computer like images, xml and so on. The only way to uninstall the app I've found is by Control Panel/Add Remove Programs. That's not the problem. When I click in uninstall there isn't any invocation in the main class of the application, I mean, the main class pointed in the application-desc jnlp tag. Then, surfing, many people suggested to create an extension for uninstalling. I've written a extension to uninstall but is not invoked when the user click in Control Panel/Add Remove Programs and there isn't a item called Uninstaller (the name of my extension). Then, the only waty to uninstall the extension and make another operations (in the main class, when the extension es installed the args[0] is install, otherwise args[0] is uninstall) is through the Cache Viewer.
Another point is I haven't get to create a shortcut in the extension
I enclose my source code bellow.
package webstarttest;
import javax.swing.JOptionPane;
public class Helloworld {
    public Helloworld() {
        super();
    public static void main(String args[]) {
        JOptionPane.showMessageDialog(null, "Hello World !");       
        System.out.println("Hello World !");
}HelloWorld.jnlp
<?xml version="1.0" encoding="utf-8"?>
<jnlp  spec="1.0+"
codebase="http://localhost:8080/webstart"
href="Helloworld.jnlp">
     <information>
          <title>HelloWorld</title>
          <vendor>TNF</vendor>          
          <offline-allowed/>
          <shortcut>
               <menu submenu="HelloWorldJWS/Lanzador"/>
          </shortcut>
</information>
     <security>
     </security>
     <resources>
          <j2se version="1.5+"/>
          <jar href="Helloworld.jar"/>
          <extension name="installer"     href="Installer.jnlp"/>
     </resources>
    <application-desc main-class="webstarttest.Helloworld" >
     </application-desc>
</jnlp>The Installer.jnlp
<jnlp spec="1.0+"
codebase="http://localhost:8080/webstart"
href="Installer.jnlp">
     <information>
          <title>Installer</title>
          <description>El Instalador/Desinstalador</description>
          <vendor>TNF</vendor>
          <offline-allowed/>
<!---- NO WORK!!!! -->
          <shortcut >
               <desktop/>
               <menu submenu="HelloWorldJWS/Lanzador"/>
          </shortcut>
     </information>
     <security>
     </security>
     <resources>
          <j2se version="1.5+"/>
          <jar href="Install.jar"  />
     </resources>
     <installer-desc main-class="webstarttest.Install"/>
</jnlp>Last, the extension code
package webstarttest;
import javax.jnlp.ExtensionInstallerService;
import javax.jnlp.ServiceManager;
import javax.swing.JOptionPane;
public class Install {
public Install() {
public static void main(String args[]) {
JOptionPane.showMessageDialog(null, "Entra");
try {
ExtensionInstallerService is = (ExtensionInstallerService) ServiceManager.lookup("javax.jnlp.ExtensionInstallerService");
if (is == null)
System.out.println("ExtensionInstallerService not found");
is.hideProgressBar();
System.out.println("This is the Installer argument:".concat(String.valueOf(String.valueOf(args[0]))));
if (args[0].equalsIgnoreCase("install")) {
JOptionPane.showMessageDialog(null, "Installed.");
System.out.println("Doing Install");
is.installSucceeded(false);
} else {
JOptionPane.showMessageDialog(null, "Uninstalled.");
System.out.println("Doing Uninstall");
System.exit(0);
//is.installSucceeded();
} catch (Exception ex) {
JOptionPane.showMessageDialog(null, "Error " + ex.toString());
ex.printStackTrace();
System.exit(0);
Thanks a lot!!

Answer 1

OK, this looks like it should work.
1.) When you run this the first time, do you get the call to the installer with args[0] == "install" ?
2.) what update version of javaws is running ?
3.) are you saying that the extension is being called from uninstalling the application from cache viewer, but not from add/remove programs remove ?, if so, what about from command line "javaws -uninstall <url-to-app-jnlp>" or from full cache uninstall "javaws -uninstall".
4.) the last point, about the shortcuts, they only apply to main jnlp files (applications and applets) not to component-extensions and installer-extensions.
/Andy