At the moment the only way to instantiate a JavaFX-Control in Swing is by using PlatformImpl.startup(); and Launcher.launch(). Launcher.launch() is not suitable for our application and PlattformImpl.startup() is a com.... class and not even in the official repository for JavaFX.
Platform.runLater() should be the way to put JavaFX-Controls in Swing. This method works perfectly as soon as you called PlatformImpl.startup() once. If you dont call the IMPL-method, Platform.runLater() throws a Toolkit not initialized message.
We would like to see this Toolkit initialization problem fixed, so we can work with Platform.runLater() onyl and dont need these workarounds.