How to 'shut down' the InteractiveConsole?

Greetings Jythonistas,

I have a Jython program that runs and exit normally when I invoke it in
this way:

$ jython myprogram.py args

But runs to its end and _does_not_exit_ when I embed it inside of a *.jar
file and invoke it in this way:

$ java -classpath jar1:jar2:jar3 MainClass args

I must send a ctrl-C to stop my program when I run it in this way.

I have embedded the Jython interpreter in the following manner:

        // Configure the Jython interpreter.
        Properties preProps = PySystemState.getBaseProperties();
        // preProps.put("python.cachedir.skip", false);
        Properties postProps = new Properties();
        postProps.put("python.cachedir.skip", false);
        postProps.put("python.path", "");
        PySystemState.initialize(preProps, postProps, appArgs);

        // Start the Jython interpreter.
        InteractiveConsole con = new InteractiveConsole();
        // I found that for some reason, when running under java web start
        // sys.prefix is None and the Lib directory under the jython.jar
        // is not added to the sys.path automatically.
        con.exec("import sys");
        con.exec("sys.path.append(\"__pyclasspath__/Lib\")");
        con.exec("sys.prefix = \"\"");

        // Execute the application 'launch code' on the interpreter.
        con.exec(appLaunchCode);

Other Jython programs, embedded in the same manner, do not exhibit this
problem.  I suspect this application does something a little... different.
But, why then does my application exit normally when I run it on
$JYTHON_HOME/bin/jython?

Thanks,
David

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