JavaFX8: Application in fullscreen mode doesn't show focus on elements - focus

Question

I have the following problem: I would like to see which textfield or button is focused when I enter my multiscreen application in fullscreen mode. But for some reason, it is not showing the focus "glow" around for example a textfield. This is not a major problem, while it is focused the way I want it (requestFocus() does its job).
But it now gets annoying when I want to use AutoComplete TextField Completion from ControlsFX (How to implement AutoComplete TextField using ControlsFX), because the list is not shown in full screen mode.
I will clarify the situation with these screenshots:
How it is now in fullscreen mode:
How it should be (and how it is in non fullscreen):
To be clear: the problem doesn't only exist with AutoComplete TextField, but with every FXML element.
If I use the fullscreen mode from OSX itself, it works the proper way (It gives an error on the background). But I want the application to start in fullscreen mode.
This the code from my Main.java:
public class Main extends Application {
//Get the screenscontroller instance
octocash.GUI_Screens.ScreensController mainContainer = octocash.GUI_Screens.ScreensController.getInstance();
//Get the configuration instance
Configuration initApp = Configuration.getInstance();
//Create an object of Functions to establish a database connection
public static Functions databaseConnection = new Functions();
//Create a stage object to hold the primarystage
public static Stage primaryStage;
#Override
public void start(Stage stage) throws Exception {
primaryStage = stage; //set the primary stage
databaseConnection.DB_Connect(); //establish database connection
//Load the initial screen (lockscreen)
mainContainer.loadScreen(Configuration.lockScreen, Configuration.lockScreenFile);
mainContainer.setScreen(Configuration.lockScreen);
Group root = new Group(); //Create a group to hold all other screens
root.getChildren().addAll(mainContainer); //Add all Screenscontroller screens to the Group
Scene scene = new Scene(root); //set the group to the scene
stage.getIcons().add(new Image("file:src/octocash/images/octo_cash_logo.png")); //add a menubar icon
stage.setTitle("OctoCash Development"); //set the window name
stage.setScene(scene); //set the scene
stage.setFullScreen(true); //full screen without borders (no program menu bars)
stage.setFullScreenExitHint(""); //Don't show "Press ESC to exit full screen"
//stage.setFullScreenExitKeyCombination(KeyCombination.NO_MATCH); //DO NOT TURN ON UNLESS YOU CREATED ANOTHER METHOD TO EXIT THE PROGRAM
stage.show(); //show the application
}
/**
* #param args the command line arguments
*/
public static void main(String[] args) {
launch(args); // start the application
}
}
As you can see, I am using a ScreensController, which is basically a StackPane with all of the screens in it.
I hope the question is clear to you all.
Any help is greatly appreciated!

Answer 1

I figured out that this is an error in Java JDK 8u25. I have now updated to Java JDK 8u40, and this solves the problem. Also, I have tested the fullscreen focus on Windows and Linux, and there it also works. So if you are having the same problem, just update your JDK.