Why does not my JarDiff work?

Question

We are using JRE 1.6,but I have a question about versioning. When Versioning is used, does webstart still download the entire jar file if a new version is found on the web server. I think with incremental updates, you can have webstart only retrieve the updated classes but I am under the impression that with standard versioning, webstart will take the whole jar if a new version is found.
When java web start has version 1.0 and wants 1.2 it makes the request:
xxx.jar version-id 1.2 current-version-id 1.0
but I can't find "current-version-id 1.0" in requestquerystring, Why?
my jnlp file:
<?xml version="1.0" encoding="UTF-8"?>
<jnlp codebase="http://localhost:8087/zjf/iBanker/webstart/" href="abs40.jnlp">
     <information>
          <title>ABS40 Run</title>
          <vendor>NANTIAN</vendor>
          <description>Abs40 System (Signed)</description>
          <shortcut>
<desktop/>
</shortcut>
</information>
     <security>
          <all-permissions/>
     </security>
     <resources>
          <j2se version="1.5+"/>
<jar href="jars/signeds/abs40.jar" main="true" download="lazy" version="1.2"/>
     </resources>
     <application-desc main-class="com.nantian.abs40.test.tools.LayoutTest">
     </application-desc>
</jnlp>
my web.xml file:
<web-app>
     <servlet>
<servlet-name>JnlpDownloadServlet</servlet-name>
<servlet-class>com.sun.javaws.servlet.JnlpDownloadServlet</servlet-class>
<!--
<servlet-class>jnlp.sample.servlet.JnlpDownloadServlet</servlet-class>
-->
<init-param>
          <param-name>
          logLevel
          </param-name>
          <param-value>
          DEBUG
          </param-value>
     </init-param>
     <init-param>
          <param-name>
          logPath
          </param-name>
          <param-value>
          D:\jnlpdownloadservlet.log
          </param-value>
     </init-param>
          <init-param>
     <param-name>
     jnlp-extension
     </param-name>
     <param-value>
     .jnlp
     </param-value>
     </init-param>
          <init-param>
     <param-name>
     jar-extension
     </param-name>
     <param-value>
     .jar
     </param-value>
     </init-param>
</servlet>
<!-- Action Servlet Mapping -->
<servlet-mapping>
     <servlet-name>JnlpDownloadServlet</servlet-name>
<url-pattern>/ibanker/*</url-pattern>
</servlet-mapping>
<mime-mapping>
<extension>jar</extension>
<mime-type>application/x-java-archive</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jnlp</extension>
<mime-type>application/x-java-jnlp-file</mime-type>
</mime-mapping>
<mime-mapping>
     <extension>jardiff</extension>
     <mime-type>application/x-java-archive-diff</mime-type>
</mime-mapping>
</web-app>
I was wondering if anyone can confirm this for me.
Also, has anyone had problems signing jars whle using versioning?
Regards,
qujbin

Answer 1

I would try force quitting the app via the multitasking bar, restarting (power cycling your phone), and then resetting the phone (holding sleep/wake and home button for about 5 seconds or until it shuts off) first.