Thank you, the examples work great! I was able to get basic functionality
going, but when I tried to wrap a different jar file I got the following
exception:
jcc.cpp.JavaError: java.lang.ExceptionInInitializerError
Java stacktrace:
java.lang.ExceptionInInitializerError
Caused by: java.lang.NullPointerException
at org.micromanager.utils.ImageUtils.<clinit>(ImageUtils.java:23)
There's actually one class that I really want to wrap, it's located in a
jar file that I have in my classpath. I have also tried using --package
org.micromanager, since this is the package the class resides in, but it
seems as if this gets ignored.
Right now the command I'm using is:
C:\Users\avastmatey>python -m jcc.__main__ --find-jvm-dll --package
java.lang --package java.util --package java.io --jar "C:\Program
Files\Micro-Manager-1.4\plugins\Micro-Manager\MMCoreJ.jar" --jar
"C:\Program
Files\Micro-Manager-1.4\plugins\Micro-Manager\MMJ_.jar" --classpath
%CLASSPATH% --python CMMCore3 --version 2.6 --build --compiler msvc
--install
where MMJ_ is the jar which contains the class I would like to wrap. I
think that the other classes in this jar are perhaps stopping this from
happening? I tried to extract this jar, but got a bunch of classes with
$1.class at the end, which I dont think represent the class I would like to
wrap.
Many thanks!
Mark.
On Sun, May 27, 2012 at 8:18 PM, Andi Vajda <va...@apache.org> wrote:
>
> On May 27, 2012, at 6:30, Mark Finkelstein <finkel.m...@gmail.com> wrote:
>
> > That solved it; I worked through and set up everything to work
> consistently
> > with msvc. It now compiles, but I'm having trouble finding any good jcc
> > examples. I tried the following:
>
> Take a look at PyLucene test cases and examples.
>
> > import jcc
>
> Not necessary. Only used for building your extension. Especially if you
> didn't build your extension with --shared mode.
>
> > import CMMCore3
> >
> > vm=jcc.initVM()
>
> Use CMMCore3.initVM() instead.
>
> > vm.attachCurrentThread()
>
> Not necessary from main thread.
>
> > print vm.isCurrentThreadAttached()
> >
> > core=CMMCore3.CMMCore() # this is the jcc wrapped class
> >
> >
> > It prints out True, but immediately afterwards gives out the
> > error: RuntimeError: initVM() must be called first
>
> Because your extension isn't initialized as you didn't call initVM() on it
> (but on jcc instead).
>
> > Which leads me to assume that the vm intialization is not global, which
> > seems contrary to the description?
>
> It is global (there can only be one Java VM instantiated per process) but
> must be called on your extension, not jcc.
>
> Andi..
>
> > Again, many thanks for the amazing support!
> >
> > Mark.
> >
> > On Sun, May 27, 2012 at 1:42 AM, Bill Janssen <jans...@parc.com> wrote:
> >
> >> Andi Vajda <va...@apache.org> wrote:
> >>
> >>>
> >>> On Sat, 26 May 2012, Mark Finkelstein wrote:
> >>>
> >>>> That solved it; apparently it wasnt using the CLASSPATH variable to
> get
> >>>> this information, but specifying it directly solved this. Hopefully
> >> this
> >>>> will be one of the last errors; after pushing forward, I found myself
> >>>>
> >>>> C:\MinGW\bin\gcc.exe -mdll -O -Wall -DPYTHON -DJCC_VER="2.13"
> >>>> -D_java_generics -IX:\Java16/include -IX:\Java16/include/win32
> >>>> -Ibuild\_CMMCore2 -IC:\Python26\lib\site-packages\jcc\sources
> >>>> -IC:\Python26\include -IC:\Python26\PC -c build\_CMMCore2\CMMCore2.cpp
> >> -o
> >>>> build\temp.win32-2.6\Release\build\_cmmcore2\cmmcore2.o /EHsc
> >>>> /D_CRT_SECURE_NO_WARNINGS
> >>>> gcc: error: /EHsc: No such file or directory
> >>>> gcc: error: /D_CRT_SECURE_NO_WARNINGS: No such file or directory
> >>>> error: command 'gcc' failed with exit status 1
> >>>>
> >>>> Perhaps this is more meant for a cygwin installation, but is there a
> >> way to
> >>>> make this work for the cmd prompt?
> >>>
> >>> You've configured JCC to work with a Microsoft Visual C++ compiler but
> >>> you're using gcc via MinGW. I can't help you with that configuration
> >>> as I don't have it but MinGW has been used with JCC before and someone
> >>> on this list should be able to help you.
> >>
> >> Yes, consistency is important here. Those flags (/EHsc and
> >> /D_CRT_SECURE_NO_WARNINGS) look like Microsoft compiler directives to
> >> me, and won't work with GCC.
> >>
> >> In case it's of help, this is my build script for mingw and JCC 3.x.
> >> I haven't tried this recently, but it should still work.
> >>
> >> Bill
> >>
> >> export JCC_ARGSEP=";"
> >> export JCC_JDK="$WINSTYLEJAVAHOME"
> >> export JCC_CFLAGS="-fno-strict-aliasing;-Wno-write-strings"
> >> export JCC_LFLAGS="-L${WINSTYLEJAVAHOME}\\lib;-ljvm"
> >> export
> >>
> JCC_INCLUDES="${WINSTYLEJAVAHOME}\\include;${WINSTYLEJAVAHOME}\\include\\win32"
> >> export JCC_JAVAC="${WINSTYLEJAVAHOME}\\bin\\javac.exe"
> >> ${python} setup.py build --compiler=mingw32 install
> >> --single-version-externally-managed --root /c/ --prefix="${distdir}"
> >> if [ -f jcc/jcc.lib ]; then
> >> cp -p jcc/jcc.lib "${sitepackages}/jcc/jcc.lib"
> >> fi
> >> # for 3.x compiled with MinGW GCC 4.x and "--shared", we also need two
> >> # GCC libraries
> >> if [ -f /mingw/bin/libstdc++-6.dll ]; then
> >> install -m 555 /mingw/bin/libstdc++-6.dll "${distdir}/bin/"
> >> echo "copied libstdc++-6.dll"
> >> fi
> >> if [ -f /mingw/bin/libgcc_s_dw2-1.dll ]; then
> >> install -m 555 /mingw/bin/libgcc_s_dw2-1.dll "${distdir}/bin/"
> >> echo "copied libgcc_s_dw2-1.dll"
> >> fi
> >>
> >>
> >>>
> >>> You might want to search the list archives, this question has come up
> >>> before.
> >>>
> >>> Andi..
> >>>
> >>>>
> >>>> Also, so many thanks in regards to the help you've given me; I
> >> definitely
> >>>> wouldnt have been able to move forward without it.
> >>>>
> >>>> On Sat, May 26, 2012 at 6:24 PM, Andi Vajda <va...@apache.org> wrote:
> >>>>
> >>>>>
> >>>>> On May 26, 2012, at 1:30, Mark Finkelstein <finkel.m...@gmail.com>
> >> wrote:
> >>>>>
> >>>>>> Apparently the correct (I think) command is:
> >>>>>>
> >>>>>> python -m jcc.__main__ --find-jvm-dll
> >>>>>>
> >>>>>> But if I use this I get:
> >>>>>>
> >>>>>> C:\Users\avastmatey>python -m jcc.__main__ --find-jvm-dll --jar
> >>>>> "C:\Program
> >>>>>> Files\Micro-Manager-1.4\plugins\Micro-Manager\MMCoreJ.jar"
> >>>>>> MMCoreJ.jar path = C:\Program
> >>>>>> Files\Micro-Manager-1.4\plugins\Micro-Manager\MMCo
> >>>>>> reJ.jar
> >>>>>> C:\Program Files\Micro-Manager-1.4\plugins\Micro-Manager
> >>>>>> C:\Program Files\Micro-Manager-1.4\plugins
> >>>>>> C:\Program Files\Micro-Manager-1.4\plugins\mm\win32
> >>>>>> C:\Program Files\Micro-Manager-1.4
> >>>>>> C:\Program Files\Micro-Manager-1.4\mm\win32
> >>>>>> Traceback (most recent call last):
> >>>>>> File "C:\Python26\Lib\runpy.py", line 122, in _run_module_as_main
> >>>>>> "__main__", fname, loader, pkg_name)
> >>>>>> File "C:\Python26\Lib\runpy.py", line 34, in _run_code
> >>>>>> exec code in run_globals
> >>>>>> File "C:\Python26\lib\site-packages\jcc\__main__.py", line 104, in
> >>>>>> <module>
> >>>>>> cpp.jcc(sys.argv)
> >>>>>> File "C:\Python26\lib\site-packages\jcc\cpp.py", line 632, in jcc
> >>>>>> generics, _dll_export)
> >>>>>> File "C:\Python26\lib\site-packages\jcc\cpp.py", line 766, in header
> >>>>>> for method in cls.getDeclaredMethods():
> >>>>>> jcc.cpp.JavaError: java.lang.NoClassDefFoundError:
> >> org/json/JSONObject
> >>>>>
> >>>>> Where is the org.json.JSONObject class defined ? If it's not in
> >>>>> MMCoreJ.jar then you need to tell jcc via the --classpath flag, for
> >>>>> example, so that it can find it.
> >>>>>
> >>>>> Andi..
> >>>>>
> >>>>>> Java stacktrace:
> >>>>>> java.lang.NoClassDefFoundError: org/json/JSONObject
> >>>>>> at java.lang.Class.getDeclaredMethods0(Native Method)
> >>>>>> at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
> >>>>>> at java.lang.Class.getDeclaredMethods(Unknown Source)
> >>>>>> Caused by: java.lang.ClassNotFoundException: org.json.JSONObject
> >>>>>> at java.net.URLClassLoader$1.run(Unknown Source)
> >>>>>> at java.net.URLClassLoader$1.run(Unknown Source)
> >>>>>> at java.security.AccessController.doPrivileged(Native Method)
> >>>>>> at java.net.URLClassLoader.findClass(Unknown Source)
> >>>>>> at java.lang.ClassLoader.loadClass(Unknown Source)
> >>>>>> at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
> >>>>>> at java.lang.ClassLoader.loadClass(Unknown Source)
> >>>>>> ... 3 more
> >>>>>>
> >>>>>> I tried --package org.json, but this did not work?
> >>>>>>
> >>>>>> On Sat, May 26, 2012 at 10:09 AM, Mark Finkelstein <
> >>>>> finkel.m...@gmail.com>wrote:
> >>>>>>
> >>>>>>> It is at C:\Python26\Lib\site-packages\jcc.dll. I can also show you
> >> my
> >>>>>>> installation log:
> >>>>>>>
> >>>>>>> *** Installation started 2012/05/14 13:29 ***
> >>>>>>> Source: C:\Users\avastmatey\Downloads\JCC-2.13.win32-py2.6.exe
> >>>>>>> 999 Root Key: HKEY_LOCAL_MACHINE
> >>>>>>> 020 Reg DB Key:
> >>>>>>> [Software\Microsoft\Windows\CurrentVersion\Uninstall]JCC-py2.6
> >>>>>>> 040 Reg DB Value:
> >>>>>>>
> >>>>>
> >>
> [Software\Microsoft\Windows\CurrentVersion\Uninstall\JCC-py2.6]DisplayName=Python
> >>>>>>> 2.6 JCC-2.13
> >>>>>>> 040 Reg DB Value:
> >>>>>>>
> >>>>>
> >>
> [Software\Microsoft\Windows\CurrentVersion\Uninstall\JCC-py2.6]UninstallString="C:\Python26\RemoveJCC.exe"
> >>>>>>> -u "C:\Python26\JCC-wininst.log"
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc.dll
> >>>>>>> 100 Made Dir: C:\Python26\Lib\site-packages\jcc
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\config.py
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\cpp.py
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\jcc.lib
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\python.py
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\windows.py
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\_jcc.pyd
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\__init__.py
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\__main__.py
> >>>>>>> 100 Made Dir: C:\Python26\Lib\site-packages\jcc\classes
> >>>>>>> 100 Made Dir: C:\Python26\Lib\site-packages\jcc\classes\org
> >>>>>>> 100 Made Dir: C:\Python26\Lib\site-packages\jcc\classes\org\apache
> >>>>>>> 100 Made Dir:
> >> C:\Python26\Lib\site-packages\jcc\classes\org\apache\jcc
> >>>>>>> 200 File Copy:
> >>>>>>>
> >>>>>
> >>
> C:\Python26\Lib\site-packages\jcc\classes\org\apache\jcc\PythonException.class
> >>>>>>> 200 File Copy:
> >>>>>>>
> >> C:\Python26\Lib\site-packages\jcc\classes\org\apache\jcc\PythonVM.class
> >>>>>>> 100 Made Dir: C:\Python26\Lib\site-packages\jcc\patches
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\patches\patch.4195
> >>>>>>> 200 File Copy:
> >> C:\Python26\Lib\site-packages\jcc\patches\patch.43.0.6c11
> >>>>>>> 200 File Copy:
> >> C:\Python26\Lib\site-packages\jcc\patches\patch.43.0.6c7
> >>>>>>> 100 Made Dir: C:\Python26\Lib\site-packages\jcc\sources
> >>>>>>> 200 File Copy:
> >> C:\Python26\Lib\site-packages\jcc\sources\functions.cpp
> >>>>>>> 200 File Copy:
> C:\Python26\Lib\site-packages\jcc\sources\functions.h
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\sources\JArray.cpp
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\sources\JArray.h
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\sources\jcc.cpp
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\sources\JCCEnv.cpp
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\sources\JCCEnv.h
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\sources\jccfuncs.h
> >>>>>>> 200 File Copy:
> C:\Python26\Lib\site-packages\jcc\sources\JObject.cpp
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\sources\JObject.h
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\sources\macros.h
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\sources\types.cpp
> >>>>>>> 100 Made Dir: C:\Python26\Lib\site-packages\JCC-2.13-py2.6.egg-info
> >>>>>>> 200 File Copy:
> >>>>>>>
> >>>>>
> >>
> C:\Python26\Lib\site-packages\JCC-2.13-py2.6.egg-info\dependency_links.txt
> >>>>>>> 200 File Copy:
> >>>>>>> C:\Python26\Lib\site-packages\JCC-2.13-py2.6.egg-info\not-zip-safe
> >>>>>>> 200 File Copy:
> >>>>>>> C:\Python26\Lib\site-packages\JCC-2.13-py2.6.egg-info\PKG-INFO
> >>>>>>> 200 File Copy:
> >>>>>>> C:\Python26\Lib\site-packages\JCC-2.13-py2.6.egg-info\SOURCES.txt
> >>>>>>> 200 File Copy:
> >>>>>>> C:\Python26\Lib\site-packages\JCC-2.13-py2.6.egg-info\top_level.txt
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\__main__.pyc
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\__init__.pyc
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\windows.pyc
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\python.pyc
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\cpp.pyc
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\config.pyc
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\__main__.pyo
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\__init__.pyo
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\windows.pyo
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\python.pyo
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\cpp.pyo
> >>>>>>> 200 File Copy: C:\Python26\Lib\site-packages\jcc\config.pyo
> >>>>>>>
> >>>>>>> I also updated my PATH to be "C:\Program Files
> >>>>>>> (x86)\Java\jdk1.7.0_04\bin";"C:\Program Files
> >>>>>>>
> >>>>>
> >>
> (x86)\Java\jdk1.7.0_04\lib";C:\Python26;C:\Python26\Lib\site-packages;C:\Python26\Lib\site-packages\PyQt4;"C:\Program
> >>>>>>> Files (x86)\MiKTeX 2.9\miktex/bin/";"C:\Program
> >>>>>>> Files\TortoiseSVN\bin";"C:\Program Files (x86)\CMake
> >>>>> 2.8\bin";"C:\Program
> >>>>>>> Files (x86)\Java\jdk1.7.0_04\jre\bin\client"
> >>>>>>>
> >>>>>>> Again, many thanks for the help.
> >>>>>>>
> >>>>>>> On Sat, May 26, 2012 at 9:59 AM, Andi Vajda <va...@apache.org>
> >> wrote:
> >>>>>>>
> >>>>>>>>
> >>>>>>>> On May 25, 2012, at 22:57, Mark Finkelstein <
> finkel.m...@gmail.com
> >>>
> >>>>>>>> wrote:
> >>>>>>>>
> >>>>>>>>> Hello everyone!
> >>>>>>>>>
> >>>>>>>>> I hope this is a relevant question. I was trying to use jcc to
> >> create
> >>>>> a
> >>>>>>>>> wrapper for a different project's library but when I try to run
> >> python
> >>>>>>>> -m
> >>>>>>>>> jcc.main
> >>>>>>>>> I get the error C:\Python26\python.exe: DLL load failed: The
> >> specified
> >>>>>>>>> module could not be found.
> >>>>>>>>> I'm not sure why this is since I put the directory containing
> >> jcc.dll
> >>>>>>>> into
> >>>>>>>>> my PATH. I am not sure if it will help, but the following is my
> >> PATH:
> >>>>>>>>>
> >>>>>>>>
> >>>>>
> >>
> C:\Python26;C:\Python26\Lib\site-packages;C:\Python26\Lib\site-packages\PyQt4;"C:\Program
> >>>>>>>>> Files (x86)\MiKTeX 2.9\miktex/bin/";"C:\Program
> >>>>>>>>> Files\TortoiseSVN\bin";"C:\Program Files (x86)\CMake
> >>>>>>>> 2.8\bin";"C:\Program
> >>>>>>>>> Files (x86)\Java\jdk1.7.0_04\jre\bin\client"
> >>>>>>>>
> >>>>>>>> I don't think jcc.dll is likely to be in any of the directories of
> >> the
> >>>>>>>> PATH you show. What is the full path of the directory containing
> >>>>> jcc.dll on
> >>>>>>>> your system ?
> >>>>>>>>
> >>>>>>>> Andi..
> >>>>>>>>
> >>>>>>>>>
> >>>>>>>>> Any help would be very much appreciated.
> >>>>>>>>>
> >>>>>>>>> Thank you in advance,
> >>>>>>>>>
> >>>>>>>>> Mark.
> >>>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>
> >>>>
> >>
>
