I use the same jar on any OS, because the JAR is 100% pure Java implementation, and has no OS/platform specific components to it. This looks like the system is a little confused about where your java components are.

On Fri, Nov 27, 2009 at 1:45 AM, Rene Maurer <rmnet@mailc.net> wrote:
Hello

I have an application where standalone jython (jython.jar) is used in a
java environment. So I have "installed" jython in the following way:

,----
| ~/Local$ java -jar jython_installer-2.5.1.jar --console
| Welcome to Jython !
|
| ...snip...
|
| The following installation types are available:
|   1. All (everything, including sources)
|   2. Standard (core, library modules, demos and examples
|   3. Minimum (core)
|   9. Standalone (a single, executable .jar)
| Please select the installation type [ 1 /2/3/9] >>> 9
| Please enter the target directory >>> jython_2.5.1
| Unable to find directory /home/rene/Local/jython_2.5.1,
| create it ? [Y/n] >>>
`----

Everything is clear until now....

But the next question from the installer is confusing me:

,----
| Please enter the java home directory (empty for using the current
| java runtime) >>>
`----

What does this mean in a standalone installation? For what reason is the
java home directory used with the standalone installation?

Or in other words...

Is it possible to use the *same* standole .jar file on different
operating systems (e.g. Windows and Linux) when the java runtime is
the same on every system?

Is it possible to use the *same* standalone .jar file on different
operating systems (e.g. Windows and Linux) when the java runtimes are
*not* the same on every system?

Thank you for your patience.

Kind regards
René

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