Java SE (Java Platform, Standard Edition)

Hello,

I'm working with JWS and jre 1.4.2 and I need to use an "installer" to copy special files.

So, I tried to create an application JNLP using this JSP:

<%@ page contentType="application/x-java-jnlp-file" autoFlush="true"%>

<?xml version='1.0' encoding='UTF-8' ?>
<jnlp spec='1.0'
      codebase='http://localhost:9080/deployerWeb'
      href='application.jsp'>
  <information>
    <title>Application</title>
    <vendor>Company</vendor>
    <description kind='one-line'>
      Application
    </description>
  </information>
  <resources>
    <j2se version='1.4+' />
    <extension href='http://10.142.87.92:9080/deployerWeb/installer.jsp' />
    <jar href='application.jar' main='true' />
  </resources>
  <application-desc main-class='com.company.jws.Application' />
</jnlp>

and an installer using this one:

<%@ page contentType="application/x-java-jnlp-file" autoFlush="true"%>

<?xml version='1.0' encoding='UTF-8' ?>
<jnlp spec='1.0'
      codebase='http://localhost:9080/deployerWeb'
      href='installer.jsp'>
  <information>
    <title>Installer</title>
    <vendor>Company</vendor>
    <description kind='one-line'>
      Installer
    </description>
  </information>
  <resources>
    <j2se version='1.4+' />
    <jar href='installer.jar' main='true' />
  </resources>
  <installer-desc main-class='com.company.jws.Installer' />
</jnlp>

The installer does nothing:

package com.company.jws;

import javax.jnlp.ExtensionInstallerService;
import javax.jnlp.ServiceManager;
import javax.jnlp.UnavailableServiceException;

public class Installer {
	protected static void install() {
		try {

			ExtensionInstallerService installerService = (ExtensionInstallerService) ServiceManager
					.lookup("javax.jnlp.ExtensionInstallerService");

			boolean installed = false;
			try {
				//JOptionPane.showMessageDialog(null, "TODO: write common files");

				installed = true;
			} finally {
				if (installed) {
					installerService.installSucceeded(false);
				} else {
					installerService.installFailed();
				}
			}
		} catch (UnavailableServiceException e) {
			//JOptionPane.showMessageDialog(null, "Install failed!");
		}
	}

	protected static void uninstall() {
		//JOptionPane.showMessageDialog(null, "TODO: delete common files");
	}

	public static void main(String[] args) throws UnavailableServiceException {
		if (args[0].equals("install")) {
			install();
		} else {
			uninstall();
		}
	}
}

When I launch the application JNLP, everything is downloaded correctly, but when JWS start the installer, the progress bar is blicking.
When I finally decide to cancel the installer, I have the following error:

JNLPException[category: Erreur dans le fichier de lancement ("Error in the launching file"): Exception: null : LaunchDesc: 

<jnlp spec="1.0" codebase="http://10.142.87.92:9080/deployerWeb/" href="http://10.142.87.92:9080/deployerWeb/installer.jsp">

  <information>

    <title>Installer</title>

    <vendor>Company</vendor>

    <homepage href="null"/>

    <description></description>

    <description kind="short"></description>

    <description kind="one-line">

      Installer

    </description>

    <description kind="tooltip"></description>

  </information>

  <resources>

    <j2se initial-heap-size="-1" max-heap-size="-1" version="1.4+"/>

    <jar href="http://localhost:9080/deployerWeb/installer.jar" download="eager" main="true"/>

  </resources>

  <installer-desc main-class="com.michelin.jws.Installer"/>

</jnlp> ]

	at com.sun.javaws.Launcher.executeInstallers(Unknown Source)

	at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)

	at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)

	at com.sun.javaws.Launcher.run(Unknown Source)

	at java.lang.Thread.run(Unknown Source)

I spend the entire day to search solution over internet, but I didn't find anything relevant.

The same code and JNLPs are working fine with java 1.6...

Can someone help me please !!!