Message942

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user_id=37674

The -D argument is being sent to jython, not the JVM.  You'll need to 
send the argument to the JVM like this:

$ java -Djava.library.path=abc -jar jython.jar
Jython 2.2a1 on java1.4.2_05 (JIT: null)
Type "copyright", "credits" or "license" for more information.
>>> from java.lang import *
>>> System.getProperty('java.library.path')
'abc'
>>>

I suggest writing a new wrapper script which allows for setting this 
variable.