I am experiencing an issue with a simple JNI app on Mac OS X using the 4.4.0
Cocoa Port alpha and Mac OS X 10.5.2 w/ Apple's JVM 1.5.0_13-b05-237.
The java application is a very simple Swing application. It displays a frame
with a button. Once the Swing button is clicked it makes a call via JNI to
the native library which uses Qt to attempt and display a QMessageBox
modally.
Here is a code snippet from the native implementation:
#include <QtCore>
#include <QtGui>
#include "HelloWorldImp.h"
JNIEXPORT void JNICALL Java_HelloWorld_displayHelloWorld(JNIEnv *env,
jobject obj)
{
int argc = 0;
char *argv[] = {""};
QApplication *pqapp = new QApplication(argc, argv);
QMessageBox mb;
mb.exec();
}
When I click the Swing button and a call is made into native library, the
application crashes with the following error:
2008-04-21 15:15:09.301 java[29340:13a03] *** -[NSApplicationAWT
setQtPrivate:]: unrecognized selector sent to instance 0x125430
2008-04-21 15:15:09.303 java[29340:13a03] An uncaught exception was raised
2008-04-21 15:15:09.303 java[29340:13a03] *** -[NSApplicationAWT
setQtPrivate:]: unrecognized selector sent to instance 0x125430
2008-04-21 15:15:09.304 java[29340:13a03] *** Terminating app due to
uncaught exception 'NSInvalidArgumentException', reason:
'*** -[NSApplicationAWT setQtPrivate:]: unrecognized selector sent to
instance 0x125430'
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