[amsat-bb] Re: New version of AO-27 Schedule Lister released!!!

[George Henry]

I'm no Java whiz either (my son is the programmer, not me), but my best 
guess is that you need to update your Java Runtime version.  The program was 
compiled on a computer with JRE 1.6.0, so you probably need that version. 
The Windows .exe has run fine on all 5 computers I've tested it on, and all 
are at JRE 1.6.0.  The .jar ran fine on the Ubuntu 8.04 ("Hardy Heron") box 
I tested it on, but I did not check the Java version on that machine.

In Windows, you can check your JRE version clicking the Java icon in Control 
Panel, or by typing

java -version

on the command line.

73,

George, KA3HSW



----- Original Message ----- 
From: "Greg D." <ko6th_greg at hotmail.com>
To: <ka3hsw at att.net>
Sent: Thursday, April 30, 2009 12:18 AM
Subject: RE: [amsat-bb] New version of AO-27 Schedule Lister released!!!



Hi George,

I'm kind of dense when it comes to Java applications, but I can't get either 
version to run.  The Windows version pops up an error box saying "Could not 
find main class. Program will exit.", and the Linux (cross-platform) version 
says all this stuff, below.  What am I doing wrong?

Thanks,

Greg  KO6TH


greg at p3200:~/download/AO-27_Scheduler> java -jar AO-27Lister1.1.jar
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad 
version number in .class file
        at java.lang.ClassLoader.defineClass2(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:719)
        at 
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:160)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:254)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
greg at p3200:~/download/AO-27_Scheduler>