On Windows,calls to Platform.runLater() after the JavaFX runtime has terminated will be ignored. We need to ensure that this is the behavior on all platforms. Due to
RT-15601, we call System.exit() on Mac to terminate the JavaFX runtime, so this is not a problem on Mac for 2.0. However, we will need to implement a platform-independent solution to ensure runLater is a no-op before the workaround for RT-15601 can be removed.
RT-15714 for a test program.