Update prompt not working with version based download

Question

Hello All,
I have a JWS application and it is deployed on my local server. I want my users to get the Update prompt ( There is an optional update, Do you download it ) when ever there is an update and I am using the version based download(version.xml) while updating my application(Jardiff). The problem here is when i change the version number from 1.1 to 1.2 in the jnlp on the server. (EX: <jar href="application.jar" version="1.2" main="true"/> ) . When the user starts the application from desktop shortcut the Jardiff gets downloaded and patched but there is no update prompt.
The problem here is the JNLP gets refreshed and even though i have the policy = "prompt-update" in update tag( <update check="timeout" policy="prompt-update"> ), i am not getting the update prompt. The update prompt works fine in basic download.
I am facing this problem from quite a long time. I hope some one has got an answer for this.
Thanks and regards,
Anjali

Answer 1

Hello Andrew,
Thanks for ur reply.
This is the JNLP file and version.xml, which i am using: ( I am using the JNLPDownloadServlet)
launch.jnlp:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE jnlp PUBLIC "-//Sun Microsystems, Inc//DTD JNLP Descriptor 6.0//EN">
<jnlp spec="6.0+" codebase="$$codebase" href="$$name">
<information>
        <title>Dummy Product </title>
        <vendor>Dummy Product</vendor>
     <icon kind="shortcut" href="images/image.gif"/>
     <icon kind="splash" href="images/splash.png"/>
        <homepage href="$$context"/>
        <description kind="one-line">Dummy Product</description>
        <offline-allowed/>
     <shortcut online="true">
          <!-- create desktop shortcut -->
          <desktop/>
          <menu submenu="Dummy -product"/>
     </shortcut>
</information>
<update check="background" policy="prompt-update"/>
   <security>
    <all-permissions/>
   </security>
   <resources>     
        <java version="1.6+" />
     <java href="http://java.sun.com/products/autodl/javase" version="1.6+"/>
        <jar href="applicationV.jar"  main="true" download="eager" version="1.1"/>
     <jar href="abc.jar"  download="eager"/>
     <jar href="cab.jar"  download="eager"/>
     <jar href="app.jar" download="eager"/>
     <jar href="app1.jar"  download="eager"/>
     <jar href="app2.jar"  download="eager"/>
     <nativelib href="app3.jar" download="eager"/>     
   </resources>
   <application-desc main-class="Mainfile">
     <argument>arg1</argument>
     <argument>arg2</argument>
   </application-desc>
</jnlp>
version.xml:
<jnlp-versions>  
         <resource>
             <pattern>
                <name>applicationV.jar</name>
                <version-id>1.1</version-id>
             </pattern>
             <file>application-01_00-us.jar</file>
         </resource>
     <resource>
              <pattern>
                <name>applicationV.jar</name>
                <version-id>1.2</version-id>
             </pattern>
             <file>application-02_00-us.jar</file>
         </resource>
</jnlp-versions>
         Thanks for the support.
Anjlai