trouble compiling SimpleEmbedded on mac osx

I'm fiddling with jython on a mac running osx 10.2.3, trying to get the  
SimpleEmbedded example (from the jython web site) working.
I have cut/pasted the code from the web page

here's the environment:

bash-2.05a$ uname -a
Darwin icu-21.sh.org.au 6.3 Darwin Kernel Version 6.3: Sat Dec 14  
03:11:25 PST 2002; root:xnu/xnu-344.23.obj~4/RELEASE_PPC  Power  
Macintosh powerpc

bash-2.05a$ jython --version
Jython 2.1 on java (JIT: null)

bash-2.05a$ java -showversion
java version "1.3.1"
Java(TM) 2 Runtime Environment, Standard Edition (build  
1.3.1-root_1.3.1_020714-12:46)
Java HotSpot(TM) Client VM (build 1.3.1_03-69, mixed mode)

compilation output:

bash-2.05a$ javac -verbose -classpath /Users/caw/jython-2.1/  
SimpleEmbedded.java
[parsing started SimpleEmbedded.java]
[parsing completed 164ms]
[loading /Users/caw/jython-2.1/org/python/util/PythonInterpreter.class]
[loading  
/System/Library/Frameworks/JavaVM.framework/Versions/1.3.1/Classes/ 
classes.jar(java/lang/Object.class)]
[loading  
/System/Library/Frameworks/JavaVM.framework/Versions/1.3.1/Classes/ 
classes.jar(java/lang/String.class)]
[loading /Users/caw/jython-2.1/org/python/core/PyException.class]
[checking SimpleEmbedded]
[loading  
/System/Library/Frameworks/JavaVM.framework/Versions/1.3.1/Classes/ 
classes.jar(java/lang/Throwable.class)]
[loading  
/System/Library/Frameworks/JavaVM.framework/Versions/1.3.1/Classes/ 
classes.jar(java/lang/RuntimeException.class)]
[loading  
/System/Library/Frameworks/JavaVM.framework/Versions/1.3.1/Classes/ 
classes.jar(java/lang/Exception.class)]
[loading  
/System/Library/Frameworks/JavaVM.framework/Versions/1.3.1/Classes/ 
classes.jar(java/lang/System.class)]
[loading  
/System/Library/Frameworks/JavaVM.framework/Versions/1.3.1/Classes/ 
classes.jar(java/io/PrintStream.class)]
[loading  
/System/Library/Frameworks/JavaVM.framework/Versions/1.3.1/Classes/ 
classes.jar(java/io/FilterOutputStream.class)]
[loading  
/System/Library/Frameworks/JavaVM.framework/Versions/1.3.1/Classes/ 
classes.jar(java/io/OutputStream.class)]
[wrote SimpleEmbedded.class]
[total 672ms]


and then running it:

bash-2.05a$ java -cp .:/Users/caw/jython-2.1 SimpleEmbedded
Exception in thread "main" java.lang.NullPointerException
        at org.python.core.PyJavaClass.lookup(PyJavaClass.java:43)
        at org.python.core.PyObject.<init>(PyObject.java:46)
        at org.python.core.PySingleton.<init>(PySingleton.java:8)
        at org.python.core.PyNone.<init>(PyNone.java:10)
        at  
org.python.core.PySystemState.initStaticFields(PySystemState.java:396)
        at  
org.python.core.PySystemState.initialize(PySystemState.java:375)
        at  
org.python.core.PySystemState.initialize(PySystemState.java:348)
        at  
org.python.core.PySystemState.initialize(PySystemState.java:341)
        at  
org.python.util.PythonInterpreter.<init>(PythonInterpreter.java:63)
        at  
org.python.util.PythonInterpreter.<init>(PythonInterpreter.java:47)
        at SimpleEmbedded.main(SimpleEmbedded.java:6)


I'd be grateful for help!

Cheers

chris wright



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