Package: jython
Version: 2.1.0-20
Severity: normal
Using jython to interactively test the following java construct causes
a nullpointer exception
public class Globals{
public static Object a;
{ //static initialzer
a=new Object();
}
}
public class B{
public void print(){
System.out.println(Globals.a.toString());
}
}
$ jython
>>> import Globals
>>> import B
>>> b = B()
>>> b.print()
Traceback (innermost last):
File "<console>", line 1, in ?
java.lang.NullPointerException
at B.print(B.java:3)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java :160)
at org.python.core.PyMethod.__call__(PyMethod.java:96)
at org.python.core.PyObject.__call__(PyObject.java:258)
at org.python.core.PyInstance.invoke(PyInstance.java:244)
at org.python.pycode._pyx5.f$0(<console>:1)
at org.python.pycode._pyx5.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(InteractiveInterpret
er.java:70)
at
org.python.util.InteractiveInterpreter.runsource(InteractiveInterpret
er.java:44)
at org.python.util.InteractiveConsole.push(InteractiveConsole.java:83)
at
org.python.util.InteractiveConsole.interact(InteractiveConsole.java:6 2)
at org.python.util.jython.main(jython.java:199)
java.lang.NullPointerException: java.lang.NullPointerException
The following sequence works as expected:
$ jython
>>> import Globals
>>> import B
>>> b = Globals()
>>> b = B()
>>> b.print()
[EMAIL PROTECTED]
--Ken Bloom
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.12-1-686
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Versions of packages jython depends on:
ii gij [java-virtual-machine 4:4.0.2-1 The GNU Java bytecode interpreter
ii gij-4.0 [java1-runtime] 4.0.2-4 The GNU Java bytecode interpreter
ii kaffe-pthreads [java1-run 2:1.1.6-3 A POSIX threads enabled version of
ii libreadline-java 0.8.0.1-5 GNU readline and BSD editline wrap
ii perl 5.8.7-8 Larry Wall's Practical Extraction
ii python2.1 2.1.3dfsg-3 An interactive high-level object-o
ii sun-j2sdk1.5 [java2-runti 1.5.0+update02 Java(TM) 2 SDK, Standard Edition,
ii sun-j2sdk1.5debian [java2 0.18 Debian specific parts of Java(TM)
Versions of packages jython recommends:
ii gcj [java-compiler] 4:4.0.2-1 The GNU Java compiler
ii gcj-4.0 [java-compiler] 4.0.2-4 The GNU compiler for Java(TM)
ii kaffe-pthreads [java-comp 2:1.1.6-3 A POSIX threads enabled version of
ii sun-j2sdk1.5 [java-compil 1.5.0+update02 Java(TM) 2 SDK, Standard Edition,
ii sun-j2sdk1.5debian [java- 0.18 Debian specific parts of Java(TM)
-- no debconf information
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