'The Java JAR file "NetC.jar" could not be launched.'

Mac PowerPC OSX 10.5

I am trying to open a .jar file for my PPC but I keep getting the error:

The Java JAR file "NetC.jar" could not be launched.'

I also downloaded Java 5.

I even went to "Java Preferences" and made sure it was set to Java 5. I rebooted the PPC as well.

Below is the error I get when I try to run this command in a terminal:

salvador-castros-power-mac-g4:netc-0.2.0 becky$ java -jar NetC.jar Exception in thr开发者_开发技巧ead "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass2(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:775) 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$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:317) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:375) salvador-castros-power-mac-g4:netc-0.2.0 becky$

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Well, it turns out my Mac OSX 10.5 PPC needs Java 6.... WHICH DOES NOT EXIST FOR THE PPC >_<