Stuck on Jythonc --all w/ ZipException PyMethod

[Mitch Amiano]

I'm getting started working with Jython (hope this is an ok group for 
the question), and ran into a stumbling block using the jythonc tool.

It is a fairly simple Jython script which uses the Apache Batik SVG 
library, imports the SVG Canvas, and puts up a simple Swing interface to 
let the user load and display an SVG file. (I translated the script from 
a Batik Java example.) The script runs fine under jython, but so far 
I've been unable to get a working jar file using jythonc.

After various problems involving CLASSPATH and the registry (protected 
members not showing up), it is persistently giving a ZipException: 
Duplicate entry error on the PyMethod class. Altering the CLASSPATH 
seems to have no effect on the problem.

Is this a problem between jythonc and newer jvms? I've also tried with 
j2sdk 1.4.2_05, with the same results.

I've exhausted other means, and at my wits end.
Thanks in advance for any pointers.



My command line is:

C:\jython-2.1\jythonc.bat --compiler C:\jdk1.5.0_01\bin\javac.exe --all 
-j usebatik.jar usebatik.py


The output is:

processing usebatik

Required packages:
   javax.swing
   org.w3c.dom
   java.awt.event
   java.lang
   java.io
   org.apache

Creating adapters:
   java.awt.event.ActionListener used in usebatik

Creating .java files:
   usebatik module

Compiling .java to .class...
Compiling with args: ['C:\\jdk1.5.0_01\\bin\\javac.exe', '-classpath', 
'C:\\jython-2.1\\jython.jar;;.\\jpywork;;C:\\jython-2.1\\Tools\\jythonc;C:\\Documents 
and Settings\\Valued 
Customer\\Desktop\\Grazer\\usebatik\\.;C:\\jython-2.1\\Lib;C:\\jython-2.1', 
'.\\jpywork\\usebatik.java']
0  Note: * uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

Building archive: usebatik.jar
Tracking java dependencies:

Traceback (innermost last):
   File "C:\jython-2.1\Tools\jythonc\jythonc.py", line 5, in ?
   File "C:\jython-2.1\Tools\jythonc\main.py", line 301, in main
   File "C:\jython-2.1\Tools\jythonc\main.py", line 294, in writeResults
   File "C:\jython-2.1\Tools\jythonc\jar.py", line 98, in dump
   File "C:\jython-2.1\Tools\jythonc\jar.py", line 92, in dumpFiles
   File "C:\jython-2.1\Tools\jythonc\jar.py", line 111, in addPackage
java.util.zip.ZipException: duplicate entry: org/python/core/PyMethod.class
	at java.util.zip.ZipOutputStream.putNextEntry(Unknown Source)
	at sun.reflect.GeneratedMethodAccessor30.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java)
	at org.python.core.PyMethod.__call__(PyMethod.java)
	at org.python.core.PyObject.__call__(PyObject.java)
	at org.python.core.PyInstance.invoke(PyInstance.java)
	at jar$py.addPackage$11(C:\jython-2.1\Tools\jythonc\jar.py:111)
	at jar$py.call_function(C:\jython-2.1\Tools\jythonc\jar.py)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyFunction.__call__(PyFunction.java)
	at org.python.core.PyInstance.invoke(PyInstance.java)
	at jar$py.dumpFiles$9(C:\jython-2.1\Tools\jythonc\jar.py:92)
	at jar$py.call_function(C:\jython-2.1\Tools\jythonc\jar.py)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyFunction.__call__(PyFunction.java)
	at org.python.core.PyInstance.invoke(PyInstance.java)
	at jar$py.dump$10(C:\jython-2.1\Tools\jythonc\jar.py:98)
	at jar$py.call_function(C:\jython-2.1\Tools\jythonc\jar.py)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyFunction.__call__(PyFunction.java)
	at org.python.core.PyInstance.invoke(PyInstance.java)
	at main$py.writeResults$8(C:\jython-2.1\Tools\jythonc\main.py:294)
	at main$py.call_function(C:\jython-2.1\Tools\jythonc\main.py)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyFunction.__call__(PyFunction.java)
	at main$py.main$9(C:\jython-2.1\Tools\jythonc\main.py:301)
	at main$py.call_function(C:\jython-2.1\Tools\jythonc\main.py)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyFunction.__call__(PyFunction.java)
	at org.python.core.PyObject.invoke(PyObject.java)
	at org.python.pycode._pyx0.f$0(C:\jython-2.1\Tools\jythonc\jythonc.py:5)
	at 
org.python.pycode._pyx0.call_function(C:\jython-2.1\Tools\jythonc\jythonc.py)
	at org.python.core.PyTableCode.call(PyTableCode.java)
	at org.python.core.PyCode.call(PyCode.java)
	at org.python.core.Py.runCode(Py.java)
	at org.python.core.__builtin__.execfile_flags(__builtin__.java)
	at org.python.util.PythonInterpreter.execfile(PythonInterpreter.java)
	at org.python.util.jython.main(jython.java)

java.util.zip.ZipException: java.util.zip.ZipException: duplicate entry: 
org/python/core/PyMethod.class


FYI, my CLASSPATH is:

SET CLASSPATH=batik-1.5.1/batik.jar;batik-1.5.1/batik-squiggle.jar; 
batik-1.5.1/batik-rasterizer.jar;batik-1.5.1/batik-slideshow.jar;batik-1.5.1/batik-svgpp.jar; 
batik-1.5.1/batik-ttf2svg.jar;batik-1.5.1/lib/batik-awt-util.jar;batik-1.5.1/lib/batik-bridge.jar; 
batik-1.5.1/lib/batik-css.jar;batik-1.5.1/lib/batik-dom.jar;batik-1.5.1/lib/batik-ext.jar; 
batik-1.5.1/lib/batik-extension.jar;batik-1.5.1/lib/batik-gui-util.jar;batik-1.5.1/lib/batik-gvt.jar; 
batik-1.5.1/lib/batik-parser.jar;batik-1.5.1/lib/batik-script.jar;batik-1.5.1/lib/batik-svg-dom.jar; 
batik-1.5.1/lib/batik-svggen.jar;batik-1.5.1/lib/batik-swing.jar;batik-1.5.1/lib/batik-transcoder.jar; 
batik-1.5.1/lib/batik-util.jar;batik-1.5.1/lib/batik-xml.jar;batik-1.5.1/lib/js.jar; 
batik-1.5.1/lib/pdf-transcoder.jar;batik-1.5.1/lib/xerces_2_5_0.jar;batik-1.5.1/lib/xml-apis.jar;
batik-1.5.1/lib/jython.jar;