JHelioViewer crash at start-up java.lang.NullPointerException

[Pascal Mons]

On Ubuntu 12.04.2 amd64

When starting from this command line I get this error

2013-06-18 06:07:17,490 [main] INFO root - Load settings
2013-06-18 06:07:17,508 [main] FATAL root - Runtime exception
java.lang.NullPointerException
   at java.util.Hashtable.put(libgcj.so.12)
   at java.util.Properties.setProperty(libgcj.so.12)
   at gnu.classpath.SystemProperties.setProperty(libgcj.so.12)
   at java.lang.System.setProperty(libgcj.so.12)
   at org.helioviewer.jhv.resourceloader.SystemProperties.setPlatform(SystemProperties.java:32)
   at org.helioviewer.jhv.JavaHelioViewer.main(JavaHelioViewer.java:130)
   at org.helioviewer.jhv.JavaHelioViewer.main(JavaHelioViewer.java:46)
$

A brief logo appears on the screen, then the app crash.

Do you have any insight on what is going on ?
It looks like java cannot load any configuration for initialization of app variables ?

I use Java Oracle version 7 update 21 which is the latest available.

[Pascal Mons (anton+)]

Do this application uses libpng12 ?

[Pascal Mons (anton+)]

The command line used is :

$ java -Xmx1024m -jar /opt/JHelioviewer/JHelioviewer.jar

[Pascal Mons (anton+)]

Well installing the new version of java Java SE 7 Update 25 released today solved the issue ...

Somehow one app I installed dameged my Oracle / Sun Java.