Jython Question

Jesper Olsen jolsen at mailme.dk
Thu Jan 3 10:20:13 EST 2002


With Jython it is easy to access existing Java classes
- I tried the random number example at
http://www.jython.org/docs/usejava.html´.

But I failed to create an example myself. Is it only packages that
can be imported?

This is a java class that I would like to access 

class World {
    public World() {
        System.out.println("constructing World!");
    }

    public void hi() {
        System.out.println("Hi World!");
    }
}


from jython - however I get an exception when try to instantiate this
class
in jython. Can anyone point out what is wrong in this example?

prompt% jython
Jython 2.1 on java1.3.1 (JIT: null)
Type "copyright", "credits" or "license" for more information.
>>> import World
>>> w=World()
Traceback (innermost last):
  File "<console>", line 1, in ?
java.lang.IllegalAccessException
        at java.lang.reflect.Constructor.newInstance(Native Method)
        at org.python.core.PyReflectedConstructor.__call__(PyReflectedConstructor.java:126)
        at org.python.core.PyJavaInstance.__init__(PyJavaInstance.java:75)
        at org.python.core.PyJavaClass.__call__(PyJavaClass.java:846)
        at org.python.core.PyObject.__call__(PyObject.java:258)
        at org.python.pycode._pyx2.f$0(<console>:1)
        at org.python.pycode._pyx2.call_function(<console>)
        at org.python.core.PyTableCode.call(PyTableCode.java:208)
        at org.python.core.PyCode.call(PyCode.java:14)
        at org.python.core.Py.runCode(Py.java:1135)
        at org.python.core.Py.exec(Py.java:1157)
        at org.python.util.PythonInterpreter.exec(PythonInterpreter.java:148)
        at org.python.util.InteractiveInterpreter.runcode(InteractiveInterpreter.java:89)
        at org.python.util.InteractiveInterpreter.runsource(InteractiveInterpreter.java:70)
        at org.python.util.InteractiveInterpreter.runsource(InteractiveInterpreter.java:44)
        at org.python.util.InteractiveConsole.push(InteractiveConsole.java:83)
        at org.python.util.InteractiveConsole.interact(InteractiveConsole.java:62)
        at org.python.util.jython.main(jython.java:199)

java.lang.IllegalAccessException: java.lang.IllegalAccessException



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