perfSONAR User Q&A and Other Discussion

["Vedrin Jeliazkov" <>]

Hi Luuk,

Luuk Oostenbrink 
<>
 wrote:

> Hi,
> 
> I try to run the perfsonar-gui 0.8 on FC5. However when I start
> up I get the following error:
> 
> $ java -jar perfSonarApp.jar
> Exception during event dispatch:
> java.lang.NullPointerException
>    at org.perfsonar.client.ui.PerfSonarApp.<init>(Unknown Source)
>    at org.perfsonar.client.ui.PerfSonarApp$2.run(Unknown Source)
>    at java.awt.event.InvocationEvent.dispatch(libgcj.so.7)
>    at java.awt.EventQueue.dispatchEvent(libgcj.so.7)
>    at java.awt.EventDispatchThread.run(libgcj.so.7)
> 
> Java is version 4.1.1

PerfsonarUI-v0.08 was compiled with j2sdk-1_4_2_06 and it should be able to
run under this (or any newer 1.4.x or 1.5.y) Java version. Please check again
your Java version and ensure that you have 1_4_2_06 or newer. If the problem
persists, then try running the tool in debug mode and send us the console
output:

java -Dperfsonar.debugging=true -jar perfSonarApp.jar

Best regards,
Vedrin

PS: The upcoming next release of perfsonarUI will be compiled with
jdk-1_5_0_07, so you would have to upgrade to a newer Java version anyway, if
you want to give it a try.

> Regards,
> Luuk Oostenbrink
> SURFnet b.v.
>