How to create self-contained jar including App & Jython class files?

Hi,

The general question is: How can I create a self-contained jar file with 
the jython application and jython libs?

Here is some background:

After a LOT of work and the very appreciated help of Charlie Groves I 
managed to create a class file from a python script that uses static 
proxies (from the customizable-proxies branch). This class file 
implements a j2me midlet interface and will be loaded by the KVM or a 
WTK emulator. The application HAS to be in a self-contained jar 
including ALL necessary classes because dynamic ClassLoading is not 
supported.

The problem is, that if I run the created midlet within the emulator, I 
get the following error (the bit of german says "No valid Win32 
application":

java.io.IOException: Cannot run program 
"C:\Programme\Java\jre6\bin\java": Creat
eProcess error=193, %1 ist keine zulõssige Win32-Anwendung
        at java.lang.ProcessBuilder.start(Unknown Source)
        at java.lang.Runtime.exec(Unknown Source)
        at java.lang.Runtime.exec(Unknown Source)
        at com.sun.kvem.environment.JVM.run(Unknown Source)
        at 
com.sun.kvem.environment.EmulatorInvoker.runEmulatorOtherVM(Unknown S
ource)
        at com.sun.kvem.environment.EmulatorInvoker.runEmulator(Unknown 
Source)
        at 
com.sun.kvem.environment.ProfileEnvironment$KVMThread.runEmulator(Unk
nown Source)
        at 
com.sun.kvem.environment.ProfileEnvironment$KVMThread.run(Unknown Sou
rce)
Caused by: java.io.IOException: CreateProcess error=193, %1 ist keine 
zulõssige
Win32-Anwendung
        at java.lang.ProcessImpl.create(Native Method)
        at java.lang.ProcessImpl.<init>(Unknown Source)
        at java.lang.ProcessImpl.start(Unknown Source)
        ... 8 more

This has to be related to jython because I get a similar error when I 
run the normal (not the configurable-proxies branch) Jython.bat which is 
in the windows PATH an then type "exit()":

C:\>jython.bat
Jython 2.5.1 (Release_2_5_1:6813, Sep 26 2009, 13:47:54)
[Java HotSpot(TM) Client VM (Sun Microsystems Inc.)] on java1.6.0_17
Type "help", "copyright", "credits" or "license" for more information.
>>> exit()
java.io.IOException: Cannot run program 
"C:\Programme\Java\jre6/bin/java": Creat
eProcess error=193, %1 ist keine zulõssige Win32-Anwendung
        at java.lang.ProcessBuilder.start(Unknown Source)
        at java.lang.Runtime.exec(Unknown Source)
        at java.lang.Runtime.exec(Unknown Source)
        at com.sun.jna.Native$DeleteNativeLibrary.run(Native.java:761)
Caused by: java.io.IOException: CreateProcess error=193, %1 ist keine 
zulõssige
Win32-Anwendung
        at java.lang.ProcessImpl.create(Native Method)
        at java.lang.ProcessImpl.<init>(Unknown Source)
        at java.lang.ProcessImpl.start(Unknown Source)
        ... 4 more

I would be REALLY helpful if someone knows this error or has an idea hot 
to solve it!

Thanks a lot,

Jan

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