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Author Topic: java -jar JPPF-6.1.4-Web-Installer.jar  (Read 484 times)


  • JPPF Padawan
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  • Posts: 3
java -jar JPPF-6.1.4-Web-Installer.jar
« on: July 09, 2021, 10:04:53 PM »


downloaded JPPF-6.2-Web-Installer.jar from
run java -jar JPPF-6.2-Web-Installer.jar (on windows 10 workstation)
will open the JPPF Installation Wizard, hit next, accept license agreement, select installation path, hit ok , create the file in D:\temp\jppf62\izWrTe7103924964133648357.tmp
Pack installation progress --> finished
Overall Installation progress --> 6/6
see PDF attachment
and receive an Error window with the message Installation failed
exactly same behavior with JPPF-6.1.4-Web-Installer.jar

Anyone who made the same experience and found a solution?
Any support appreciated
thanks in advance


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Re: java -jar JPPF-6.1.4-Web-Installer.jar
« Reply #1 on: July 10, 2021, 09:36:34 AM »


I was able to reproduce this behavior once, but only with Java 15. I had no issue with Java 8, 11 or 13. After killing the java process the first time, the error never happened again. However, I could capture the following error message:

Code: [Select]
C:\Temp>C:\java\jdk-15.0.2\bin\java -jar JPPF-6.2-Web-Installer.jar
java.lang.NullPointerException: Cannot invoke "[])" because "<local5>" is null while trying to download

I will keep inivestigating and provide a status with my findings.



  • JPPF Padawan
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  • Posts: 3
Re: java -jar JPPF-6.1.4-Web-Installer.jar
« Reply #2 on: July 12, 2021, 07:03:19 PM »

Hi Laurent,

thanks for the quick update
fyi I received the message using  Java 8 + 12 (w2k12/Windows 10).
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