Unable to launch the application after upgrading Java to version 1.6.0_26

Question

After upgrading Java to version 1.6.0_26 in Windows XP my web start throwing Exception. It works fine in Ubuntu with Java 1.6.0_24 and in Windows with older versions of Java 1.6.
Exception doesn't say anything:
java.lang.NullPointerException
       at com.sun.javaws.Launcher.executeApplication(Unknown Source)
       at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
       at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
       at com.sun.javaws.Launcher.run(Unknown Source)
       at java.lang.Thread.run(Unknown Source)Same as java console ouput
Java Web Start 1.6.0_26
Using JRE version 1.6.0_26-b03 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\esod
c:   clear console window
f:   finalize objects on finalization queue
g:   garbage collect
h:   display this help message
m:   print memory usage
o:   trigger logging
p:   reload proxy configuration
q:   hide console
r:   reload policy configuration
s:   dump system and deployment properties
t:   dump thread list
v:   dump thread stack
0-5: set trace level to <n>
#### Java Web Start Error:
#### nullMy Jnlp file looks like this
<jnlp spec="1.0+">
<information>
   <title>Editor</title>
   <vendor>Comapny name</vendor>
   <homepage href="http://company_urll" />
   <description>Editor/description>
</information>
<resources>
   <j2se version="1.6+" />
   <property value="true" name="javaws.cfg.jauthenticator" />
   <jar href="http://192.168.79.33:7070/resources/applet/formeditor.jar" />
</resources>
<security>
   <all-permissions />
</security>
<application-desc main-class="pl.rdata.formeditor.FormEditor">
   <argument>[email protected]</argument>
   <argument>rLq3347491</argument>
   <argument>17</argument>
   <argument>
   http://192.168.79.33:7070/formeditor/formManagerService.service</argument>
   <argument>
   http://192.168.79.33:7070/formeditor/customDataTypeManager.service</argument>
   <argument>
   http://192.168.79.33:7070/formeditor/authorizationService.service</argument>
   <argument>2</argument>
</application-desc>
</jnlp>This application is self signed.
When I download jar file to disk I can run it with command java -jar and it works fine.
After downloading jar I made some tests changing line <jar href="http://192.168.79.33:7070/resources/applet/formeditor.jar" /> in Jnlp file.
When I changed it to <jar href="formeditor.jar" />, and have jar in folder it works.
When I changed it to <jar href="file:///C:/formeditor.jar"> it is not working (same exception).
In every case jar is download correctly and it pass verifying.
can anyone help?
Regards
Michal

Answer 1

867322 wrote:
When I changed it to <jar href="formeditor.jar" />, and have jar in folder it works.Okay, so you at least have a workaround.
can anyone help?Search the bugs database to see if someone else already reported this; if not create a new bug entry. Whatever mistake you could make, you should not be getting a NullPointerException as a result so this is at the very least a bug in the error handling of webstart.
But just some observations to try and see if you can make a difference (which is added input for your bug report). If I check JNLP examples, I see that the url specified is usually without a protocol, so it could be like this:
<jar href="/resources/applet/formeditor.jar" />The JNLP should be on the host that you service the jar from, so Webstart can fill in the host information for itself.
Also you provide a main-class; if the jar manifest specifies a main-class (and it should) you don't need to specify it in your JNLP file.