Missing version field in response...( Tomcat, JBuilder )

Question

Hello,
(Sorry for a long message, but I saw several times messages with the only
response like "write more details...")
I'm trying to execute a simple Web Start application using version-based download.
I'm constantly receiving the following error:
Missing version field in response from server when accessing resource:
(http://localhost:8083/checkboxcontrol/CheckBoxControl.jar, 1.1)
Is it possible that there is a bug somewhere within Web Start ?
The download is working in a basic version - the problem starts to occur when
I'm changing JNLP to:
<jar href="CheckBoxControl.jar" version="1.1"/>
Is there anybody that can help me ?
(I've read all past messages about "Missing version field in response...")
Below is all information about the case.
URL:
===================
http://localhost:8083/checkboxcontrol/CheckBoxControlLauncher.jnlp
Software configuration:
======================================
JBuilder 9 Enterprise Trial
Java Web Start 1.4.2
Tomcat 4.1 (included for debugging inside the JBuilder)
Windows NT 4.0 SP6a
Mozilla Firebird 0.6.1
Please note that I've tried also with IBM Websphere 4 - the same result.
JNLP file:
===================
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://localhost:8083/checkboxcontrol">
<information>
<title>CheckBox Example</title>
<vendor>Borland</vendor>
<homepage href="CheckBoxControlLauncher.html" />
<description>Web Start Example for CheckBoxControl</description>
</information>
<resources>
<j2se version="1.3+" />
<jar href="CheckBoxControl.jar" version="1.1"/>
</resources>
<application-desc main-class="com.borland.samples.swing.checkboxcontrol.Application1" />
</jnlp>
File directory contents:
========================
.\Lib (empty)
.\WEB-INF
->\classes
->->\checkboxcontrol
->->->\WEB-INF
->->->->\Lib
->->->->->\jardiff.jar
->->->->->\jnlp-servlet.jar
->->->->->\jnlp.jar
->->\classes\com\borland\samples\swing\checkboxcontrol\
->->->\Application1.class
->->->\Frame1$1.class
->->->\Frame1$2.class
->->->\Frame1$3.class
->->->\Frame1$4.class
->->->\Frame1$5.class
->->->\Frame1.class
->\lib
->->\jardiff.jar
->->\jnlp-servlet.jar
->->\jnlp.jar
->\web.xml
CheckBoxControl.jar
CheckBoxControlLauncher.html
CheckBoxControlLauncher.jnlp
CheckBoxControl__V1.1.jar
version.xml
web.xml contents:
===================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<servlet>
<servlet-name>JnlpDownloadServlet</servlet-name>
<servlet-class>com.sun.javaws.servlet.JnlpDownloadServlet</servlet-class>
</servlet>
[... cut ....]
<servlet-mapping>
<servlet-name>JnlpDownloadServlet</servlet-name>
<url-pattern>*.jnlp</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>
</web-app>
version.xml contents:
======================================
<jnlp-versions>
<resource>
<pattern>
<name>CheckBoxControl.jar</name>
<version-id>1.1</version-id>
</pattern>
<file>CheckBoxControl.jar</file>
</resource>
</jnlp-versions>
Stack trace:
===================
JNLPException[category: Download Error : Exception: null : LaunchDesc: null ]
     at com.sun.javaws.cache.DownloadProtocol.doDownload(DownloadProtocol.java:566)
     at com.sun.javaws.cache.DownloadProtocol.getDownloadSize(DownloadProtocol.java:850)
     at com.sun.javaws.LaunchDownload.downloadJarFiles(LaunchDownload.java:580)
     at com.sun.javaws.LaunchDownload.downloadEagerorAll(LaunchDownload.java:544)
     at com.sun.javaws.Launcher.downloadResources(Launcher.java:735)
     at com.sun.javaws.Launcher.handleApplicationDesc(Launcher.java:291)
     at com.sun.javaws.Launcher.handleLaunchFile(Launcher.java:199)
     at com.sun.javaws.Launcher.run(Launcher.java:167)
     at java.lang.Thread.run(Thread.java:534)

Answer 1

I took a scan through what you posted and it looked OK - it has to be something simple. Sometimes it helps to compare against a working system - try looking at ScheduleWorld's jnlp.