Solved Load JavaFX Scene Controller from FXML

Hi! I am trying to use a JavaFX scene with my plugin. I can load it fine, and it opens, but once I attach a controller to it, I get an error that says the controller class cannot be found:
https://pastebin.com/QreF50Ji

Here is my MCServer class: (I made it the controller AND the JavaPlugin just to prove it should be able to find it. I've tried it also with a separate controller class but same problem):

Code:

public class MCServer extends JavaPlugin implements Initializable {
    @Override
    public void onEnable() {
        new Thread(() -> ControlPanel.launch(ControlPanel.class)).start();
    }

    @FXML
    private TextArea console;

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        this.console.appendText("TEST");
    }

    public void sendCommand(ActionEvent evt) {
        TextField textField = (TextField) evt.getSource();
        textField.setText("");
        String cmd = textField.getText();
        Bukkit.dispatchCommand(Bukkit.getConsoleSender(), cmd);
    }
}

ControlPanel:

Code:

public class ControlPanel extends Application {
    @Override
    public void start(Stage primaryStage) throws Exception {
        Parent root = FXMLLoader.load(getClass().getResource("control-panel.fxml"));
        primaryStage.setTitle("MCServer Control Panel");
        primaryStage.setScene(new Scene(root));
        primaryStage.show();
    }
}

Everything is in the same package (com.dgrissom.mcserver).

Maybe the JavaFX reflection stuff doesn't like Bukkit?
I really want to be able to use FXML, creating the scene through Java is a pain.

Thanks!

 

I want to make a control panel for my server.
I was able to do this using Swing, but I want to see if it is possible using JavaFX

 

@timtower thanks for help, but actually @IAlInstannen helped me solve this in the Discord server.

The problem is with Bukkit's class loader likely, it doesn't like the JavaFX reflection stuff to get the controller class.

I got around this by setting the controller manually:

Code:

FXMLLoader loader = new FXMLLoader(getClass().getResource("control-panel.fxml"));
loader.setController(new ControlPanelController());
Parent root = loader.load();

The IDE will say a bunch of errors in the FXML file since there's no controller specified and there's method calls, but it still compiles thankfully.