Submitted On 05-AUG-2008
florent.garin
Absolutely, I confirm, Java Web Start is not able to download or even launch an already download application when there's an http proxy between client and server that sends a http redirection.
In that case we get the error below:
In the Dialog box first tab :
<HTML>
<HEAD><TITLE>302 Moved Temporarily</TITLE></HEAD>
<BODY>
<H1>Moved Temporarily<H1>
<H4>
You are being redirected to a new location because:<P>
Redirecting to login URL to set authentication cookie.
</H4>
<HR>
</BODY>
</HTML>
and in the second tab :
MissingFieldException[ Il manque le champ obligatoire suivant dans le fichier de lancement : <jnlp>]
at com.sun.javaws.jnl.XMLFormat.parse(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)
at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
It's clear that Java Web Start doesn't follow the 302 http redirection but instead try to parse the html page as it was a jnlp file.
Submitted On 05-AUG-2008
florent.garin
The problem still exists in the latest Java 6 update 10 beta.
Because that release targets the desktop market that would be great to fix it in the final release of the customer jre.
Submitted On 20-AUG-2008
florent.garin
Actually on Java 6 update 10 RC, the error seems to be slightly different :
java.lang.SecurityException: illegal URL redirect
at com.sun.deploy.net.HttpUtils.followRedirects(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doGetRequest(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Submitted On 20-AUG-2008
florent.garin
So the problem is that Java Web Start is not allowed to follow redirection between httpURL and HTTPS URL.
Submitted On 20-AUG-2008
florent.garin
Why not change this security policy ? Prompt the user and ask him if he wants to follow the redirection ?
I think this bug should be fixed and a way or another, otherwise users would not understand why their ajax applications work but their RIA java ones not.
PLEASE NOTE: JDK6 is formerly known as Project Mustang
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