If I start the FX platform in an embedded way (i.e. not using Application.launch()) and I have no other non daemon threads running, the VM is shutting down after a few seconds (the FX UI is shown before and works). Same configuration works on windows, i.e. no shutdown of the VM occurs. Adding a "Keep-Alive-Thread" that does nothing but is just a non daemon thread running, helps we work around this issue on MacOS X.

This should work out of the box in some future release I think.,