I am trying to access Kettle over web As i make changes to source code

1. Download or check out the source code
2. Change web/spoon.jnlp to match webserver
3. run "ant webstart"
4. Extract the war file on webserver. e.g - http://localhost/ETL/kettle/spoon.jnlp

I am getting the error

Java Web Start - Download error

Unable to Launch Kettle Spoon

An error occurred while launching/running the application.

Title: Kettle Spoon
Vendor: i-Bridge bvba
Category: Download Error

Unable to load resource: http://kettle.javaforge.com/webstart/spoon.jnlp

Can you guys help me to resolve this issue...

I am using it as