[Ikvm-developers] Qt Jambi on IKVM

[Jon C. <jo...@gm...>]

Hi everyone,
     I am trying out Qt Jambi (
http://www.trolltech.com/developer/downloads/qt/qtjambi-techpreview) on
IKVM. These are official Java bindings from Trolltech that are about to be
released; they are at their final technology preview right now. Anyway, I
wrote a sample app that works great under ikvm.exe. However, my goal is
really to use Qt from C#. So, I compiled the qtjambi.jar file with ikvmc,
and got an assembly. I wrote my app in C# an everything built. However, when
I run my app I get the following error (note I got some debug tracing by
adding IKVM.Internal.Tracer.EnableTraceForDebug () to the beginning of my
app). I think the JNI method in question resides in
com_trolltech_qt_core.dll which seems to get loaded. If this is a problem in
qtjambi, I'll like to let them know before the final release; it would be
very cool if IKVM could help get C# bindings from the java ones. But again
my app runs fine on ikvm, so I'm guessing it's something specific to ikvmc?
Any help/direction would be appreciated.

Thanks,
Jonathan Chambers

C:\eclipse\QtJambiTest\bin\Debug>QtJambiTest.exe
[20:41:25.20312 ] Core assembly:
C:\eclipse\QtJambiTest\bin\Debug\IKVM.GNU.Class
path.dll
[20:41:25.20312 ] Remapping type System.Exception to java.lang.Throwable
[20:41:25.20312 ] Remapping type System.IComparable to java.lang.Comparable
[20:41:25.20312 ] Remapping type System.Object to java.lang.Object
[20:41:25.20312 ] Remapping type System.String to java.lang.String
[20:41:25.62500 ] loadLibrary: C:\eclipse\QtJambiTest\bin\Debug\QtCore4.dll,
cla
ss loader: java.lang.ClassLoader$1@2004EEE
[20:41:25.62500 ] loadLibrary: C:\eclipse\QtJambiTest\bin\Debug\qtjambi.dll,
cla
ss loader: java.lang.ClassLoader$1@2004EEE
[20:41:25.62500 ] loadLibrary: C:\eclipse\QtJambiTest\bin\Debug\QtCore4.dll,
cla
ss loader: java.lang.ClassLoader$1@2004EEE
[20:41:25.62500 ] loadLibrary: C:\eclipse\QtJambiTest\bin\Debug\QtGui4.dll,
clas
s loader: java.lang.ClassLoader$1@2004EEE
[20:41:25.62500 ] loadLibrary:
C:\eclipse\QtJambiTest\bin\Debug\com_trolltech_qt
_core.dll, class loader: java.lang.ClassLoader$1@2004EEE
[20:41:25.64062 ] Linking native method:
com/trolltech/qt/core/QtJambi_LibraryIn
itializer.__qt_initLibrary()V, class loader =
java.lang.ClassLoader$1@2004EEE, s
hort =
Java_com_trolltech_qt_core_QtJambi_1LibraryInitializer__1_1qt_1initLibrar
y, long =
Java_com_trolltech_qt_core_QtJambi_1LibraryInitializer__1_1qt_1initLib
rary__, args = 8
[20:41:25.64062 ] UnsatisfiedLinkError:
com/trolltech/qt/core/QtJambi_LibraryIni
tializer.__qt_initLibrary()V

Unhandled Exception: System.TypeInitializationException: The type
initializer fo
r 'com.trolltech.qt.gui.QApplication' threw an exception. --->
System.TypeInitia
lizationException: The type initializer for '
com.trolltech.qt.core.QCoreApplicat
ion' threw an exception. ---> System.TypeInitializationException: The type
initi
alizer for 'com.trolltech.qt.core.QObject' threw an exception. --->
System.TypeI
nitializationException: The type initializer for 'com.trolltech.qt.QtObject'
thr
ew an exception. ---> System.TypeInitializationException: The type
initializer f
or 'com.trolltech.qt.QtJambi_LibraryInitializer' threw an exception. --->
System
.TypeInitializationException: The type initializer for '
com.trolltech.qt.QClassP
athFileEngineHandler' threw an exception. --->
System.TypeInitializationExceptio
n: The type initializer for '
com.trolltech.qt.core.QAbstractFileEngineHandler' t
hrew an exception. ---> System.TypeInitializationException: The type
initializer
 for 'com.trolltech.qt.core.QtJambi_LibraryInitializer' threw an exception.
--->
 java.lang.UnsatisfiedLinkError:
com/trolltech/qt/core/QtJambi_LibraryInitialize
r.__qt_initLibrary()V
   --- End of inner exception stack trace ---
   at com.trolltech.qt.core.QtJambi_LibraryInitializer.init()
   at com.trolltech.qt.core.QAbstractFileEngineHandler..cctor()
   --- End of inner exception stack trace ---
   at com.trolltech.qt.core.QAbstractFileEngineHandler.__<clinit>()
   at com.trolltech.qt.QClassPathFileEngineHandler..cctor()
   --- End of inner exception stack trace ---
   at com.trolltech.qt.QClassPathFileEngineHandler.__<clinit>()
   at com.trolltech.qt.QtJambi_LibraryInitializer..cctor()
   --- End of inner exception stack trace ---
   at com.trolltech.qt.QtJambi_LibraryInitializer.init()
   at com.trolltech.qt.QtObject..cctor()
   --- End of inner exception stack trace ---
   at com.trolltech.qt.QtObject.__<clinit>()
   at com.trolltech.qt.core.QObject..cctor()
   --- End of inner exception stack trace ---
   at com.trolltech.qt.core.QObject.__<clinit>()
   at com.trolltech.qt.core.QCoreApplication..cctor()
   --- End of inner exception stack trace ---
   at com.trolltech.qt.core.QCoreApplication.__<clinit>()
   at com.trolltech.qt.gui.QApplication..cctor()
   --- End of inner exception stack trace ---
   at com.trolltech.qt.gui.QApplication..ctor(String[] strarr)
   at QtJambiTest.Program.Main(String[] args) in
C:\eclipse\QtJambiTest\Program.
cs:line 13