[Jython-dev] Null pointer exception in Demo/embed/SimpleEmbedded...

[Jayson S B. <js...@ci...>]

Hiho,

   I'm a developer who is trying to embed Python code into Java, so of
course I came to Jython. When trying to run your example after compiling,
I get the following stack dump:
  Exception in thread "main" java.lang.NullPointerException
   at org.python.core.PyJavaClass.lookup(PyJavaClass.java:39)
   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:7)
   at org.python.core.PySystemState.initStaticFields(PySystemState.java:341)
   at org.python.core.PySystemState.initialize(PySystemState.java:320)
   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)
   at SimpleEmbedded.main(SimpleEmbedded.java:6)

Any idea what's causing this? no one has mentioned it in the FAQ's or the
list archives...

Jayson Baird
js...@ci...