[Jython-users] Ignored security exception in Py.java

[Neil R. <ne...@bl...>]

I'm trying to setup a security profile for my Jython application, but the
Py.java class, when it tries to create the class loader, apparently
ignores any security exceptions that are thrown, and then proceeds to try
to use the class loader (which failed to load). This results in a
NullPointerException without any hint of what the security exception was
that caused the class loader not to load. I basically had to touch the
code to dump a stack trace when it caught the SecurityException in order
to find out what it was.

Here's the NullPointerException stack trace:

Exception in thread "main" java.lang.ExceptionInInitializerError:
java.lang.NullPointerException
        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.Py.initClassExceptions(Py.java:470)
        at
org.python.core.PySystemState.initialize(PySystemState.java:335)
        at
org.python.core.PySystemState.initialize(PySystemState.java:294)
        at
org.python.core.PySystemState.initialize(PySystemState.java:287)
        at
org.python.util.PythonInterpreter.<init>(PythonInterpreter.java:61)
        at
org.python.util.PythonInterpreter.<init>(PythonInterpreter.java:45)


Thanks,
Neil


Computer Science is no more about computers than
astronomy is about telescopes. -- E. W. Dijkstra