java.lang.UnsupportedClassVersionError: Bad version number in .class file
 

Hi Everybody.

I have installed a software and ever thing was OK and the
installation completed. I also defined the PATH to the
software on my "bashrc".

But when I types "reflex" insted of running the program it
gives the following error.

I would be very grateful if someone could help me in this matter.

With best regards,
Hassan


pc@ubuntu:~$ reflex
[null] Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
[null] at java.lang.ClassLoader.defineClass1(Native Method)
[null] at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
[null] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
[null] at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
[null] at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
[null] at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
[null] at java.security.AccessController.doPrivileged(Native Method)
[null] at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
[null] at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
[null] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
[null] at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
[null] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
Exception in thread "main" Java returned: 1
at org.kepler.build.modules.ModulesTask.execute(ModulesTask.java:105)
at org.kepler.build.runner.Kepler.main(Kepler.java:78)
Caused by: Java returned: 1
at org.apache.tools.ant.taskdefs.Java.execute(Java.java:108)
at org.kepler.build.Run.runSuite(Run.java:298)
at org.kepler.build.Run.run(Run.java:202)
at org.kepler.build.modules.ModulesTask.execute(ModulesTask.java:101)
... 1 more
--- Nested Exception ---
Java returned: 1
at org.apache.tools.ant.taskdefs.Java.execute(Java.java:108)
at org.kepler.build.Run.runSuite(Run.java:298)
at org.kepler.build.Run.run(Run.java:202)
at org.kepler.build.modules.ModulesTask.execute(ModulesTask.java:101)
at org.kepler.build.runner.Kepler.main(Kepler.java:78)
pc@ubuntu:~$

May be you are not supposed to use the command 'reflex' ?

Which program is this about ?
And which Linux OS are you using ? Like Fedora 14, CentOS 5.5, etc. etc.
When answered, then somebody may have a chance to solve your issues.

Please read :
http://www.linuxquestions.org/linux/...Ask_a_Question
http://linuxsilo.net/docs/smart-questions_en.html
..

Hi knudfl,

Thanks for replying to my post.
I am using Ubuntu 9.10. and I have installed "reflex" which
is an astronomical software. Its source is from here:

"http://www.eso.org/sci/software/reflex/"

Thanks.

What version of java do you run, is it up to date? Try "java -v" and compare it to the current version. HTH.

http://www.eso.org/sci/software/reflex
>> wget ftp://ftp.eso.org/pub/dfs/reflex/install_uves_reflex
> 'install_uves_reflex' ( script, to download and install reflex.)


Running 'reflex' the way you try : Probably not possible ?
( reflex must be executed from Reflex/software/bin to find its data files, etc.)

I can run it in three ways : 1) The full path,
/home/knudfl/Reflex/software/bin/reflex
2) cd /home/knudfl/Reflex/software/bin/ && ./reflex
2a) You can also make a "start-reflex" script with that command,
and copy it to /usr/local/bin/ .

3) cd /usr/local/bin/ && ln -s /home/knudfl/Reflex/software/bin/reflex
..... And then you have 'reflex' in your path.

.

Hi knudfl,

Thanks.
I did what you suggested and it work.

Thanks a lot for your helpful comments.

Best regards,
Hassan