[Mac Yosemite] Random crash launching jfx app on Mac 10.10 dev prev 2

Running an JavaFX app seems to crash on the first attempt at least 1 out 3. The second time it usually works.

Sometimes I get the following error on the console (other times just the /hs_err_pid1064.log file).

2014-07-03 09:41:10.551 java[2016:602049] -[__NSCFSet frame]: unrecognized selector sent to instance 0x7f99096180d0
2014-07-03 09:41:10.553 java[2016:602049] An uncaught exception was raised
2014-07-03 09:41:10.553 java[2016:602049] -[__NSCFSet frame]: unrecognized selector sent to instance 0x7f99096180d0
2014-07-03 09:41:10.554 java[2016:602049] (
0 CoreFoundation 0x00007fff8cdcd14c __exceptionPreprocess + 172
1 libobjc.A.dylib 0x00007fff8ad7a57d objc_exception_throw + 43
2 CoreFoundation 0x00007fff8cdd007d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
3 CoreFoundation 0x00007fff8cd19604 ___forwarding___ + 1028
4 CoreFoundation 0x00007fff8cdce7d8 __forwarding_prep_1___ + 120
5 AppKit 0x00007fff9593bd57 -[NSWindow _fromScreenCommonCode:] + 99
6 AppKit 0x00007fff9593c1b3 -[NSWindow initWithContentRect:styleMask:backing:defer:screen:] + 87
7 libglass.dylib 0x0000000129d106c4 -[GlassWindow_Panel initWithDelegate:frameRect:styleMask:screen:] + 116
8 libglass.dylib 0x0000000129d0ead4 -[GlassWindow(Java) _initWithContentRect:styleMask:screen:jwindow:jIsChild:] + 308
9 libglass.dylib 0x0000000129d119af _createWindowCommon + 607
10 ??? 0x000000010b52f694 0x0 + 4484953748
)
2014-07-03 09:41:10.554 java[2016:602049] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFSet frame]: unrecognized selector sent to instance 0x7f99096180d0'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff8cdcd14c __exceptionPreprocess + 172
1 libobjc.A.dylib 0x00007fff8ad7a57d objc_exception_throw + 43
2 CoreFoundation 0x00007fff8cdd007d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
3 CoreFoundation 0x00007fff8cd19604 ___forwarding___ + 1028
4 CoreFoundation 0x00007fff8cdce7d8 __forwarding_prep_1___ + 120
5 AppKit 0x00007fff9593bd57 -[NSWindow _fromScreenCommonCode:] + 99
6 AppKit 0x00007fff9593c1b3 -[NSWindow initWithContentRect:styleMask:backing:defer:screen:] + 87
7 libglass.dylib 0x0000000129d106c4 -[GlassWindow_Panel initWithDelegate:frameRect:styleMask:screen:] + 116
8 libglass.dylib 0x0000000129d0ead4 -[GlassWindow(Java) _initWithContentRect:styleMask:screen:jwindow:jIsChild:] + 308
9 libglass.dylib 0x0000000129d119af _createWindowCommon + 607
10 ??? 0x000000010b52f694 0x0 + 4484953748
)
libc++abi.dylib: terminating with uncaught exception of type NSException