Calling getGraphicsConfiguration().getDevice().setFullScreenWindow(this); where "this" is a JFrame instance and doing in a full screen slide show mode seems to cause a core dump:

2012-09-26 12:23:18.721 java[10122:8b13] Cocoa AWT: Not running on AppKit thread 0 when expected. (
0 liblwawt.dylib 0x000000019bf7a50f Java_sun_lwawt_macosx_CPlatformWindow_nativeGetNSWindowDisplayID_1AppKitThread + 59
1 ??? 0x00000001108aff90 0x0 + 4572512144
2 ??? 0x00000001108a42d4 0x0 + 4572463828
3 ??? 0x00000001108a49e1 0x0 + 4572465633
)
2012-09-26 12:23:18.722 java[10122:8b13] Please file a bug report at http://java.net/jira/browse/MACOSX_PORT with this message and a reproducible test case.

Attach the source code for a full screen slide show. It's a rather short piece of code but can be stripped
down to a minimal reproducible case.

Now work around this case by checking for Java 7 for Mac and simply ignoring calling getGraphicsConfiguration().getDevice().setFullScreenWindow(this)