[Jython-dev] Strange

[George K. T. <gk...@to...>]

I have a program that works when I run it standalone using jython:

import os
import os.path
import sys

from java.lang import System

def go(out):
    title = "Example Apache JServ Servlet"
    out = System.out

    cwd = os.getcwd()
    addedDir = os.path.join(cwd, 'Python')
    out.println( 'current working directory = %s' % cwd)
    out.println( 'directory to add = %s' % addedDir)
    out.println( 'old path = %s' % sys.path)
    sys.path.append(addedDir)
    import Test2a
    out.println( 'new path = %s' % sys.path)
    out.println( 'now loading Test2a class and creating instance')
    out.println( 'object = %s' % Test2a.Test2a() )
    out.close()

if __name__ == '__main__':
    out = System.out
    go(out)

When I run it through the PythonInterpreter using this wrapper:
import org.python.util.PythonInterpreter;
import org.python.core.*;

public class Test2Run {
     public static void main(String []args)
         throws PyException
     {
         PythonInterpreter interp =
             new PythonInterpreter();

         interp.exec("import Test2app");
     }
}

This happens:
Exception in thread "main" Traceback (innermost last):
   File "<string>", line 1, in ?
   File "/webhome/servlets/gkt/WEB-INF/classes/./Test2app.py", line 10, in ?
java.lang.ExceptionInInitializerError: java.lang.NullPointerException
         at org.python.modules.os.<clinit>(os.java:11)
         at java.lang.Class.forName0(Native Method)
         at java.lang.Class.forName(Class.java:120)
         at 
org.python.core.SyspathJavaLoader.loadClass(SyspathJavaLoader.java:57)
         at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
         at org.python.core.Py.findClassEx(Py.java:607)
         at org.python.core.imp.loadBuiltin(imp.java:198)
         at org.python.core.imp.load(imp.java:354)
         at org.python.core.imp.load(imp.java:376)
         at org.python.core.imp.importName(imp.java:447)
         at org.python.core.imp.importName(imp.java:509)
         at org.python.core.ImportFunction.load(__builtin__.java:967)
         at org.python.core.ImportFunction.__call__(__builtin__.java:961)
         at org.python.core.PyObject.__call__(PyObject.java:250)
         at org.python.core.__builtin__.__import__(__builtin__.java:921)
         at org.python.core.imp.importOne(imp.java:518)
         at 
Test2app$py.f$0(/webhome/servlets/gkt/WEB-INF/classes/./Test2app.py)
         at 
Test2app$py.call_function(/webhome/servlets/gkt/WEB-INF/classes/./Test2app.py)
         at org.python.core.PyTableCode.call(PyTableCode.java:155)
         at org.python.core.imp.createFromCode(imp.java:157)
         at org.python.core.imp.createFromPyClass(imp.java:74)
         at org.python.core.imp.loadFromPath(imp.java:310)
         at org.python.core.imp.loadFromPath(imp.java:252)
         at org.python.core.imp.load(imp.java:357)
         at org.python.core.imp.load(imp.java:376)
         at org.python.core.imp.importName(imp.java:447)
         at org.python.core.imp.importName(imp.java:509)
         at org.python.core.ImportFunction.load(__builtin__.java:967)
         at org.python.core.ImportFunction.__call__(__builtin__.java:961)
         at org.python.core.PyObject.__call__(PyObject.java:250)
         at org.python.core.__builtin__.__import__(__builtin__.java:921)
         at org.python.core.imp.importOne(imp.java:518)
         at org.python.pycode._pyx0.f$0(<string>)
         at org.python.pycode._pyx0.call_function(<string>)
         at org.python.core.PyTableCode.call(PyTableCode.java:155)
         at org.python.core.Py.runCode(Py.java:1055)
         at org.python.core.Py.exec(Py.java:1076)
         at org.python.util.PythonInterpreter.exec(PythonInterpreter.java:135)
         at Test2Run.main(Test2Run.java:11)

java.lang.ExceptionInInitializerError: java.lang.ExceptionInInitializerError

Anyone run into this before?  There is some failure happening with a class 
initializer (in Java).

George