Issue1527

<target name="test2"
<script language="jython" setbeans="false">
<![CDATA[
import os
print os.path.exists(None)
]]>
</script>
</target>

What OS is this?  (Looks like a problem with the JNA/JFFI code.)

Windows

Your <target> tag is not closed.  Is this on purpose?  If not, does that fix it?

No, that was a mistake is typing the example

#
# An unexpected error has been detected by Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x77c47bc4, pid=5712, tid=1528
#
# Java VM: Java HotSpot(TM) Client VM (11.3-b02 mixed mode, sharing windows-x86)
# Problematic frame:
# C  [msvcrt.dll+0x37bc4]
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

---------------  T H R E A D  ---------------

Current thread (0x002b7800):  JavaThread "main" [_thread_in_native, id=1528, stack(0x008c0000,0x009e0000)]

siginfo: ExceptionCode=0xc0000005, reading address 0x00000000

Registers:
EAX=0x00000000, EBX=0x00000000, ECX=0x00000000, EDX=0x77c1135a
ESP=0x009dea28, EBP=0x009dea4c, ESI=0x00000000, EDI=0x00000000
EIP=0x77c47bc4, EFLAGS=0x00010246

Top of Stack: (sp=0x009dea28)
0x009dea28:   00000000 80000400 00000000 00000000
0x009dea38:   00000000 00000000 00000000 00000000
0x009dea48:   03a83408 009dea64 77c3286c 00000000
0x009dea58:   77c11358 03a83290 00000008 009dea78
0x009dea68:   77c328f9 03a83408 00000000 77c11358
0x009dea78:   009decf8 77c1fcce 00000000 77c11358
0x009dea88:   002b7800 009dee00 06a2ead8 00000000
0x009dea98:   00000000 00000000 00000001 06a38260 

Instructions: (pc=0x77c47bc4)
0x77c47bb4:   8a 02 0a c0 74 07 42 0f ab 04 24 eb f3 8b 75 08
0x77c47bc4:   8a 06 0a c0 74 0a 46 0f a3 04 24 73 f3 8d 46 ff 


Stack: [0x008c0000,0x009e0000],  sp=0x009dea28,  free space=1146k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C  [msvcrt.dll+0x37bc4]
C  [msvcrt.dll+0x2286c]
C  [msvcrt.dll+0x228f9]
C  [msvcrt.dll+0xfcce]
C  [jna1106603050313383391.tmp+0xda37]
C  [jna1106603050313383391.tmp+0x9182]
C  [jna1106603050313383391.tmp+0x2161]
C  [jna1106603050313383391.tmp+0x2849]
j  com.sun.jna.Function.invokeInt(I[Ljava/lang/Object;)I+0
j  com.sun.jna.Function.invoke([Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;+315
j  com.sun.jna.Function.invoke(Ljava/lang/Class;[Ljava/lang/Object;Ljava/util/Map;)Ljava/lang/Object;+194
j  com.sun.jna.Library$Handler.invoke(Ljava/lang/Object;Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;+344
j  $Proxy0.stat(Ljava/lang/String;Lorg/python/posix/FileStat;)I+20
j  org.python.posix.BaseNativePOSIX.stat(Ljava/lang/String;)Lorg/python/posix/FileStat;+11
v  ~StubRoutines::call_stub

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j  com.sun.jna.Function.invokeInt(I[Ljava/lang/Object;)I+0
j  com.sun.jna.Function.invoke([Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;+315
j  com.sun.jna.Function.invoke(Ljava/lang/Class;[Ljava/lang/Object;Ljava/util/Map;)Ljava/lang/Object;+194
j  com.sun.jna.Library$Handler.invoke(Ljava/lang/Object;Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;+344
j  $Proxy0.stat(Ljava/lang/String;Lorg/python/posix/FileStat;)I+20
j  org.python.posix.BaseNativePOSIX.stat(Ljava/lang/String;)Lorg/python/posix/FileStat;+11
v  ~StubRoutines::call_stub
j  sun.reflect.NativeMethodAccessorImpl.invoke0(Ljava/lang/reflect/Method;Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+0
j  sun.reflect.NativeMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+87
j  sun.reflect.DelegatingMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+6
j  java.lang.reflect.Method.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+161
j  org.python.core.PyReflectedFunction.__call__(Lorg/python/core/PyObject;[Lorg/python/core/PyObject;[Ljava/lang/String;)Lorg/python/core/PyObject;+217
j  org.python.core.PyObject.__call__(Lorg/python/core/ThreadState;Lorg/python/core/PyObject;[Lorg/python/core/PyObject;[Ljava/lang/String;)Lorg/python/core/PyObject;+5
j  org.python.core.PyMethod.__call__(Lorg/python/core/ThreadState;[Lorg/python/core/PyObject;[Ljava/lang/String;)Lorg/python/core/PyObject;+33
j  org.python.core.PyMethod.instancemethod___call__([Lorg/python/core/PyObject;[Ljava/lang/String;)Lorg/python/core/PyObject;+6
j  org.python.core.PyMethod.__call__([Lorg/python/core/PyObject;[Ljava/lang/String;)Lorg/python/core/PyObject;+3
j  org.python.core.PyObject.__call__(Lorg/python/core/PyObject;)Lorg/python/core/PyObject;+12
j  org.python.core.PyObject.__call__(Lorg/python/core/ThreadState;Lorg/python/core/PyObject;)Lorg/python/core/PyObject;+2
j  os$py.stat$38(Lorg/python/core/PyFrame;Lorg/python/core/ThreadState;)Lorg/python/core/PyObject;+89
j  os$py.call_function(ILorg/python/core/PyFrame;Lorg/python/core/ThreadState;)Lorg/python/core/PyObject;+540
j  org.python.core.PyTableCode.call(Lorg/python/core/ThreadState;Lorg/python/core/PyFrame;Lorg/python/core/PyObject;)Lorg/python/core/PyObject;+129
j  org.python.core.PyBaseCode.call(Lorg/python/core/ThreadState;Lorg/python/core/PyObject;Lorg/python/core/PyObject;[Lorg/python/core/PyObject;Lorg/python/core/PyObject;)Lorg/python/core/PyObject;+94
j  org.python.core.PyFunction.__call__(Lorg/python/core/ThreadState;Lorg/python/core/PyObject;)Lorg/python/core/PyObject;+18
j  ntpath$py.exists$16(Lorg/python/core/PyFrame;Lorg/python/core/ThreadState;)Lorg/python/core/PyObject;+35
j  ntpath$py.call_function(ILorg/python/core/PyFrame;Lorg/python/core/ThreadState;)Lorg/python/core/PyObject;+188
j  org.python.core.PyTableCode.call(Lorg/python/core/ThreadState;Lorg/python/core/PyFrame;Lorg/python/core/PyObject;)Lorg/python/core/PyObject;+129
j  org.python.core.PyBaseCode.call(Lorg/python/core/ThreadState;Lorg/python/core/PyObject;Lorg/python/core/PyObject;[Lorg/python/core/PyObject;Lorg/python/core/PyObject;)Lorg/python/core/PyObject;+94
j  org.python.core.PyFunction.__call__(Lorg/python/core/ThreadState;Lorg/python/core/PyObject;)Lorg/python/core/PyObject;+18
j  org.python.pycode._pyx2.f$0(Lorg/python/core/PyFrame;Lorg/python/core/ThreadState;)Lorg/python/core/PyObject;+28
j  org.python.pycode._pyx2.call_function(ILorg/python/core/PyFrame;Lorg/python/core/ThreadState;)Lorg/python/core/PyObject;+24
j  org.python.core.PyTableCode.call(Lorg/python/core/ThreadState;Lorg/python/core/PyFrame;Lorg/python/core/PyObject;)Lorg/python/core/PyObject;+129
j  org.python.core.PyCode.call(Lorg/python/core/ThreadState;Lorg/python/core/PyFrame;)Lorg/python/core/PyObject;+4
j  org.python.core.Py.runCode(Lorg/python/core/PyCode;Lorg/python/core/PyObject;Lorg/python/core/PyObject;)Lorg/python/core/PyObject;+97
j  org.python.core.Py.exec(Lorg/python/core/PyObject;Lorg/python/core/PyObject;Lorg/python/core/PyObject;)V+226
j  org.python.util.PythonInterpreter.exec(Lorg/python/core/PyObject;)V+13
j  org.python.util.InteractiveInterpreter.runcode(Lorg/python/core/PyObject;)V+2
j  org.python.util.InteractiveInterpreter.runsource(Ljava/lang/String;Ljava/lang/String;Lorg/python/core/CompileMode;)Z+83
j  org.python.util.InteractiveInterpreter.runsource(Ljava/lang/String;Ljava/lang/String;)Z+6
j  org.python.util.InteractiveConsole.push(Ljava/lang/String;)Z+41
j  org.python.util.InteractiveConsole.interact(Ljava/lang/String;Lorg/python/core/PyObject;)V+101
j  org.python.util.jython.run([Ljava/lang/String;)V+998
j  org.python.util.jython.main([Ljava/lang/String;)V+5
v  ~StubRoutines::call_stub

---------------  P R O C E S S  ---------------

Java Threads: ( => current thread )
  0x02d02800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=784, stack(0x032f0000,0x03410000)]
  0x02cfc400 JavaThread "CompilerThread0" daemon [_thread_blocked, id=3380, stack(0x032a0000,0x032f0000)]
  0x02cfac00 JavaThread "Attach Listener" daemon [_thread_blocked, id=4412, stack(0x03180000,0x032a0000)]
  0x02cf9800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=2868, stack(0x03060000,0x03180000)]
  0x02cf1400 JavaThread "Finalizer" daemon [_thread_blocked, id=5388, stack(0x02f40000,0x03060000)]
  0x02cf0000 JavaThread "Reference Handler" daemon [_thread_blocked, id=5468, stack(0x02e20000,0x02f40000)]
=>0x002b7800 JavaThread "main" [_thread_in_native, id=1528, stack(0x008c0000,0x009e0000)]

Other Threads:
  0x02cee400 VMThread [stack: 0x02dd0000,0x02e20000] [id=1048]
  0x02d04800 WatcherThread [stack: 0x03410000,0x03460000] [id=4772]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
 def new generation   total 960K, used 936K [0x06970000, 0x06a70000, 0x090d0000)
  eden space 896K,  97% used [0x06970000, 0x06a4a230, 0x06a50000)
  from space 64K, 100% used [0x06a50000, 0x06a60000, 0x06a60000)
  to   space 64K,   0% used [0x06a60000, 0x06a60000, 0x06a70000)
 tenured generation   total 8412K, used 5541K [0x090d0000, 0x09907000, 0x26970000)
   the space 8412K,  65% used [0x090d0000, 0x096394c0, 0x09639600, 0x09907000)
 compacting perm gen  total 12288K, used 10673K [0x26970000, 0x27570000, 0x2a970000)
   the space 12288K,  86% used [0x26970000, 0x273dc7b0, 0x273dc800, 0x27570000)
    ro space 8192K,  63% used [0x2a970000, 0x2ae88810, 0x2ae88a00, 0x2b170000)
    rw space 12288K,  53% used [0x2b170000, 0x2b7dd300, 0x2b7dd400, 0x2bd70000)

Dynamic libraries:
0x00400000 - 0x00424000 	C:\Program Files\Java\jre6\bin\java.exe
0x7c900000 - 0x7c9b2000 	C:\WINNT\system32\ntdll.dll
0x7c800000 - 0x7c8f6000 	C:\WINNT\system32\kernel32.dll
0x77dd0000 - 0x77e6b000 	C:\WINNT\system32\ADVAPI32.dll
0x77e70000 - 0x77f02000 	C:\WINNT\system32\RPCRT4.dll
0x77fe0000 - 0x77ff1000 	C:\WINNT\system32\Secur32.dll
0x7c340000 - 0x7c396000 	C:\Program Files\Java\jre6\bin\msvcr71.dll
0x6d800000 - 0x6da56000 	C:\Program Files\Java\jre6\bin\client\jvm.dll
0x7e410000 - 0x7e4a1000 	C:\WINNT\system32\USER32.dll
0x77f10000 - 0x77f59000 	C:\WINNT\system32\GDI32.dll
0x76b40000 - 0x76b6d000 	C:\WINNT\system32\WINMM.dll
0x6d290000 - 0x6d298000 	C:\Program Files\Java\jre6\bin\hpi.dll
0x76bf0000 - 0x76bfb000 	C:\WINNT\system32\PSAPI.DLL
0x6d7b0000 - 0x6d7bc000 	C:\Program Files\Java\jre6\bin\verify.dll
0x6d330000 - 0x6d34f000 	C:\Program Files\Java\jre6\bin\java.dll
0x6d7f0000 - 0x6d7ff000 	C:\Program Files\Java\jre6\bin\zip.dll
0x68000000 - 0x68036000 	C:\WINNT\system32\rsaenh.dll
0x77c10000 - 0x77c68000 	C:\WINNT\system32\msvcrt.dll
0x769c0000 - 0x76a74000 	C:\WINNT\system32\USERENV.dll
0x5b860000 - 0x5b8b5000 	C:\WINNT\system32\netapi32.dll
0x6d610000 - 0x6d623000 	C:\Program Files\Java\jre6\bin\net.dll
0x71ab0000 - 0x71ac7000 	C:\WINNT\system32\WS2_32.dll
0x71aa0000 - 0x71aa8000 	C:\WINNT\system32\WS2HELP.dll
0x71a50000 - 0x71a8f000 	C:\WINNT\System32\mswsock.dll
0x76f20000 - 0x76f47000 	C:\WINNT\system32\DNSAPI.dll
0x76fb0000 - 0x76fb8000 	C:\WINNT\System32\winrnr.dll
0x76f60000 - 0x76f8c000 	C:\WINNT\system32\WLDAP32.dll
0x76fc0000 - 0x76fc6000 	C:\WINNT\system32\rasadhlp.dll
0x03b20000 - 0x03b72000 	C:\Documents and Settings\ssteiner\Local Settings\Temp\jna1106603050313383391.tmp
0x03b80000 - 0x03b88000 	C:\Documents and Settings\ssteiner\Local Settings\Temp\jline_.dll

VM Arguments:
jvm_args: -Xmx512m -Xss1152k -Dpython.home=.. -Dpython.executable=C:\USERS\Installers\jython_installer-2.5.0\bin\jython.bat 
java_command: org.python.util.jython
Launcher Type: SUN_STANDARD

Environment Variables:
JAVA_HOME=C:\Program Files\Java\jre6
CLASSPATH=..\jython.jar;.;C:\Program Files\Java\jre1.6.0_03\lib\ext\QTJava.zip
PATH=C:\Python26\\Scripts;C:\Python26\;C:\Symbian\SITK;C:\Symbian\SITK\stat\bin;C:\Symbian\SITK\edgd\bin\;C:\Symbian\SITK\cbr;C:\Symbian\SITK\ucc\bin;C:\Symbian\SITK\testdriver;;c:\apps\actperl\bin\;c:\apps\rvct22_593\bin;\epoc32\tools;\epoc32\gcc\bin;c:\apps\ct\bin;c:\apps\ue;c:\apps\ccm65\bin;c:\apps\symdec;c:\apps\engtools\testdriver2;c:\winnt\system32;c:\winnt\system32\wbem;c:\program files\intel\wireless\bin;c:\apps\ant\bin;c:\program files\subversion\bin;c:\program files\nokia\fasttrace;c:\program files\quicktime\qtsystem\;c:\apps\cltools;c:\apps\bc;c:\apps\symrec;c:\apps\gracecli\bin;c:\apps\wget;c:\apps\ant_1.7\bin;c:\apps\j2sdk_1.6.0_02;c:\apps\unzip;c:\apps\7zip;c:\program files\perforce;c:\program files\mercurial;c:\program files\jprobe 8.1\bin;c:\program files\mysql\mysql server 4.1\bin;c:\program files\sliksvn\bin\;c:\program files\tortoisesvn\bin;APPDATA\Python\Scripts;C:\APPS\j2sdk_1.6.0_02\bin;C:\Users\UnxUtils\usr\local\wbin;C:\apps\msvc6\Common\Tools\WinNT;C:\apps\msvc6\Common\MSDev98\Bin;C:\apps\msvc6\Common\Tools;C:\apps\msvc6\VC98\bin;C:\Program Files\Google\google_appengine\
USERNAME=ssteiner
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 15 Model 6 Stepping 5, GenuineIntel



---------------  S Y S T E M  ---------------

OS: Windows XP Build 2600 Service Pack 3

CPU:total 2 (2 cores per cpu, 1 threads per core) family 15 model 6 stepping 5, cmov, cx8, fxsr, mmx, sse, sse2, sse3

Memory: 4k page, physical 2086440k(1008684k free), swap 1933488k(921864k free)

vm_info: Java HotSpot(TM) Client VM (11.3-b02) for windows-x86 JRE (1.6.0_13-b03), built on Mar  9 2009 01:15:24 by "java_re" with MS VC++ 7.1

time: Wed Jan 27 14:29:19 2010
elapsed time: 19 seconds