1) run FXML-LoginDemo as JNLP
2) press the Mac full screen button
3) login (type 'demo' and 'demo')
4) press 'login' button
5) fullscreen exit and the application hangs

Notes: It does not hang on the desktop. We are stuck waiting on a latch for rendering to complete. The hang is a result of the recent changes for multi threading. If we don't wait for rendering to complete (ie. delete the code), the hang goes away and we seem to render fine. A longer discussion about this needs to happen.