Mac: DirectoryChooser crashes on Mac

Running the attached file and clicking on the shown Button crashes JavaFX 2.1 / JDK 7 Developer Preview on MacOS with following Message

2012-02-04 10:09:55.063 java[71194:903] -[DialogDispatcher runModal:]: unrecognized selector sent to instance 0x1772732f0
2012-02-04 10:09:55.066 java[71194:903] An uncaught exception was raised
2012-02-04 10:09:55.067 java[71194:903] -[DialogDispatcher runModal:]: unrecognized selector sent to instance 0x1772732f0
2012-02-04 10:09:55.080 java[71194:903] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[DialogDispatcher runModal:]: unrecognized selector sent to instance 0x1772732f0'
*** Call stack at first throw:
(
0 CoreFoundation 0x00007fff853ab784 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x00007fff8271af03 objc_exception_throw + 45
2 CoreFoundation 0x00007fff85405110 +[NSObject(NSObject) doesNotRecognizeSelector:] + 0
3 CoreFoundation 0x00007fff8537d8ef ___forwarding___ + 751
4 CoreFoundation 0x00007fff85379a38 _CF_forwarding_prep_0 + 232
5 Foundation 0x00007fff84d7ca49 -[NSObject(NSThreadPerformAdditions) performSelector:onThread:withObject:waitUntilDone:modes:] + 234
6 Foundation 0x00007fff84d8fdd0 -[NSObject(NSThreadPerformAdditions) performSelectorOnMainThread:withObject:waitUntilDone:] + 143
7 libmat.jnilib 0x00000001755857cb Java_com_sun_glass_ui_mac_MacCommonDialogs__1showFolderChooser + 909
8 ??? 0x0000000102294d85 0x0 + 4331228549
)
terminate called after throwing an instance of 'NSException'
Java Result: 134