problem with JWS: page not found

[gib65]

I'm not exactly new to Java but I'm new to JWS and I don't know where else to post this (so please move it if you see fit).

If you go to:

Hello World GUI

you'll see I've got a java application setup and ready to be downloaded. The problem occurs when you click on it. It says "The page cannot be found". It looks for helloworldgui.jnlp and for some reason can't find it.

The wwwroot/JWS folder consist of the following files:

helloworldgui.html
helloworldgui.jnlp
helloworldJFrame.jar
classes\
source\

My jnlp file looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://www.shahspace.com/JWS/" href="http://www.shahspace.com/JWS/helloworldgui.jnlp">
	<information>
		<title>Hello World GUI</title>
		<vendor>Gibran Shah</vendor>
	</information>
	<resources>
		<jar href="HelloWorldJFrame.jar"/>
	</resources>
	<application-desc main-class="classes.HelloWorldJFrame></application-desc>
</jnlp>

I know it works on my desktop as I've tested it. It's only when I upload it to my server and put it under my domain that I get this problem.

Any suggestions will be greatly appreciated.

[Webuser]

Hello

Try to modify your jnlp in this way...

<jnlp spec="1.0+" codebase="." href="http://localhost:8080/... *.jnlp">

...
<jar href="http://localhost:8080/... *.jar" />

<application-desc main-class="..." documentbase="http://localhost:8080/..." name="name" />

Some unclear read this http://java.sun.com/developer/techni...gramming/jnlp/

[gib65]

Okay, I changed my jnlp file so that it now looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="." href="http://localhost:8080/helloworldgui.jnlp">
	<information>
		<title>Hello World GUI</title>
		<vendor>Gibran Shah</vendor>
	</information>
	<resources>
		<jar href="http://localhost:8080/HelloWorldJFrame.jar"/>
	</resources>
	<application-desc main-class="classes.HelloWorldJFrame" documentbase="http://localhost:8080/" name="Hello World GUI"></application-desc>
</jnlp>

There are still a couple problems though:

1) in order to use localhost, I had to place it under C:\Inetpub\wwwroot, which is not my main web directory (D:\Inetpub\public_websites\...) under which exists shahspace.com plus a whole number of other domain names - so this can only work as a temporary solution until I eventually learn how to make it work under shahspace.com (this also means I can only get it to work if I'm logged onto the server - i.e. there is no way to access localhost through any internet browser remotely).

2) Though this works if I put everything in the localhost directory (i.e. C:\Inetpub\wwwroot), I now encounter a different problem. It says:

"Unable to load resource: http://localhost:8080/helloworldgui.jnlp"

which actually sounds like the same kind of error except presented in a different form.

It also gives the following stack traces:

com.sun.deploy.net.FailedDownloadException: Unable to load resource: http://localhost:8080/helloworldgui.jnlp
	at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
	at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
	at com.sun.javaws.Launcher.prepareToLaunch(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)

and under wrapped exception:

java.net.ConnectException: Connection refused: connect
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.PlainSocketImpl.doConnect(Unknown Source)
	at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
	at java.net.PlainSocketImpl.connect(Unknown Source)
	at java.net.SocksSocketImpl.connect(Unknown Source)
	at java.net.Socket.connect(Unknown Source)
	at java.net.Socket.connect(Unknown Source)
	at sun.net.NetworkClient.doConnect(Unknown Source)
	at sun.net.www.http.HttpClient.openServer(Unknown Source)
	at sun.net.www.http.HttpClient.openServer(Unknown Source)
	at sun.net.www.http.HttpClient.<init>(Unknown Source)
	at sun.net.www.http.HttpClient.New(Unknown Source)
	at sun.net.www.http.HttpClient.New(Unknown Source)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
	at sun.net.www.protocol.http.HttpURLConnection.connect(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.deploy.net.DownloadEngine.actionDownload(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
	at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
	at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
	at com.sun.javaws.Launcher.prepareToLaunch(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)

Any further insights?

[Webuser]

Try to use this with Tomcat first because 8080 it is the Tomcat default port :)

IIS it is not so good as for applet debugging. You have to find out the server port :(

[gib65]

Thanks everyone for your help.

My application seems to be working now. Check it out if you want: Hello World GUI. Not that it's anything special - just a Hello World GUI - but it would help to be sure that others can access it without encountering errors.

Here's the jnlp file that now works (how exactly it differs from my original attempt, I can't exactly recall):

<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://www.shahspace.com/JWS/" href="helloworldgui.jnlp">
	<information>
		<title>Hello World GUI</title>
		<vendor>Gibran Shah</vendor>
	</information>
	<resources>
		<jar href="HelloWorldJFrame.jar"/>
	</resources>
	<application-desc main-class="classes.HelloWorldJFrame"></application-desc>
</jnlp>

PS - sorry for not posting this solution earlier - I got side tracked.

PSS - also, what is Tomcat? Is that an alternative to IIS? Does it run on Windows Server 2003?