JavaFX: Opening a stage after delay on button click - javafx

Question

sorta new to Javafx. I'm running into a problem when in my controller class for my main stage, Im trying to: after clicking on a button, start a delay that will then open a new stage.
The problem comes to when loading the FXML file within the button action event and in the run() part of the Scheduler that I'm using for the delay.
I can't throw the exception in the run() because it clashes with itself?
And I can't catch it either in the Parent Root by doing :
Parent root = null;
try {
root = FXMLLoader.load(getClass().getResource("Popup.fxml"));
} catch (IOException e) {
e.printStackTrace();
}
because it just flat out won't run. I think Im approaching this poorly or just the wrong way entirely.
I can't seem to get this to work. The stage runs fine just on button click but I need the delay.
Code for Controller Class:
public class Controller implements Initializable {
public static int seconds;
public static boolean yes = false;
public String strtime = String.format("Current Date/Time : %tc", new Date());
#FXML
Button remind;
#FXML
Label secondsuntil,date;
#FXML
TextField Day, Minute, remindname;
#FXML
private Button Butt;
static String Nameoftask;
int days, minutes;
#Override
public void initialize(URL location, ResourceBundle resources) {
// TODO Auto-generated method stub
date.setText(strtime);
}
#FXML
private void handleButtonAction(ActionEvent actionEvent) throws IOException {
final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
ScheduledFuture<?> countdown = scheduler.schedule(new Runnable() {
#Override
public void run(){
Stage primaryStage = new Stage();
Parent root = FXMLLoader.load(getClass().getResource("Popup.fxml"));
primaryStage.setTitle(Nameoftask);
primaryStage.initModality(Modality.NONE);
primaryStage.setScene(new Scene(root, 200,50));
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
double width = screenSize.getWidth();
double height = screenSize.getHeight();
primaryStage.setX(width);enter code here
primaryStage.setY(height*-1);
primaryStage.show();
try {
FXMLLoader loader = new
FXMLLoader(getClass().getResource("Popup.fxml"));
loader.setController(new Controller());
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}}, 1, TimeUnit.SECONDS);
}
}