Missing version filed in response from server when accessing resource

Question

Hello all,
I am getting the following error when trying to do jar version download in webstart.
Missing version field in response from server when accessing resource(http://lo alhost:8080/jdc/jnlp/new/SimpleGUI.jar,1.0)
I am using Tomcat 5.5.
My web.xml looks like this,
<web-app>
<display-name>Tomcat Examples</display-name>
<description>
Tomcat Example servlets and JSP pages.
</description>
<servlet>
<servlet-name>
JnlpDownloadServlet
</servlet-name>
<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>
c:\logs\jnlpdownloadservlet.log
</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>JnlpDownloadServlet</servlet-name>
<url-pattern>/jdc/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>JnlpDownloadServlet</servlet-name>
<url-pattern>*.jnlp</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>JnlpDownloadServlet</servlet-name>
<url-pattern>*.jar</url-pattern>
</servlet-mapping>
</web-app>
My version.xml file.
<jnlp-versions>
<resource>
<pattern>
<name>SimpleGUI_v1.0.jar</name>
<version-id>1.0</version-id>
<locale>en_US</locale>
<locale>en</locale>
</pattern>
<file>SimpleGUI_v1.0.jar</file>
</resource>
<resource>
<pattern>
<name>SimpleGUI_v2.0.jar</name>
<version-id>2.0</version-id>
<locale>en_US</locale>
<locale>en</locale>
</pattern>
<file>SimpleGUI_v2.0.jar</file>
</resource>
</jnlp-versions>
My jnlp file is as follows,
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://localhost:8080/jdc/jnlp/new" href="SimpleGUI.jnlp">
<information>
<title>SimpleGUI</title>
<vendor>Java Developer Connection</vendor>
<homepage href="/jdc/jnlp/new/index.html" />
<description>Demonstration of JNLP</description>
</information>
<offline-allowed/>
<resources>
<j2se href="http://java.sun.com/products/autodl/j2se" version="1.5+ " />
<jar href="SimpleGUI_v1.0.jar" version="1.0"/>
<jar href="AddLogic_v1.0.jar"/>
<jar href="SimpleGUI_v2.0.jar" version="2.0"/>
<jar href="AddLogic_v2.0.jar"/>
</resources>
<application-desc main-class="com.logic.SimpleGUI" />
</jnlp>
For the codebase if I use $$codebase then it reports an error showing,
The field <jnlp> codebase has an invalid value:$$codebase
I think the JnlpDpwnloadServlet is not getting invoked. I cant figure out my mistake. I am tired searching in forums and there is no proper answer to this problem. Any help is appreciated.
Thanks in advance.
Regards,
robi

Answer 1

Thanks for including all your code. I've ran into version download problems before also. In the jar reference don't include the actual __V.jar file name, just include all pre __V.jar. <jar href="AddLogic_v1.0.jar"/> would become <jar href="AddLogic.jar"/>. Now I haven't done it with the version.xml before I just did it with making file named *__V.jar.
I just re-read all that you did, if you title your files with the __V.jar notation you don't need a version.xml file.
<jar href="SimpleGUI_v1.0.jar" version="1.0"/>
Should become
<jar href="SimpleGUI.jar" version="1.0"/>
And you would have SimpleGUI_v1.0.jar on your server. Also might need it to be a capital "V" not sure.
Message was edited by:
javaunixsolaris