Problem: UnsupportedClassVersionError

[Filipe Silveira]

I´m receiving the following error:

Exception in thread "main" java.lang.UnsupportedClassVersionError: br/gov/jt/projetoteste/TesteApp (Unsupported major.minor version 49.0)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at com.simontuffs.onejar.JarClassLoader.defineClass(JarClassLoader.java:
450)
        at com.simontuffs.onejar.JarClassLoader.findClass(JarClassLoader.java:44
1)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at com.simontuffs.onejar.Boot.run(Boot.java:245)
        at com.simontuffs.onejar.Boot.main(Boot.java:105)

Is the wrap folder mandatory?

Obs: I am using Java 1.5.

Please, how can I solve this?

Thanks!

Filipi Silveira

[Filipe Silveira]

The file MANIFEST.MF in the main jar needs to include class-path references to the jars in the lib folder of the top level Jar?

Filipi

[P. Simon Tuffs]

It is not necessary to include class-path references ni the MANIFEST.MF file.  If you do so, these will be references to the filesystem, and should augment the top-level classloader with the jar files you mention, but from the filesystem not from inside the one-jar file (see the writeup on the web-page http://one-jar.sourceforge.net\).

Simon.

[P. Simon Tuffs]

Hello Filipi: 

This must be due to your using Java 1.5, though I'm surprised that it doesn't work if you are using a 1.5 JVM.  That said, I haven't tested against Java 1.5, I don't have much time to work on One-Jar at the moment. 

I do have a new release (0.96) in the works.  Could you help me out with a stripped down example that shows the problem.

Simon.

[Filipe Silveira]

Hello Simon, I’ve got a mistake on the execution. One-Jar(0.95) is working perfectly with JRE 1.5 now.
Thanks!

Filipi Silveira