JavaFX load fxml file issues

Question

When I first create a new project using IntelliJ with JavaFX, I'm given two prebuilt classes, HelloApplication and HelloController, stored inside a package named com.example.demo. Aswell as a fxml file named, hello-view.fxml, which is stored inside a directory named com.example.demo inside recources I can run those without a problem. But as I finished playing around with those,I then decided to delete the classes and the fxml file I was given to begin creating my own fxml files and classes. However, as soon as I did and then tried loading the fxml file /run the program I get this long error message. So I went back, let IntelliJ create another project for me. What I found was that I could always add new fxml files in the same directory as the one IntelliJ created for me. But as soon as I create a new directory inside the resoruce folder, add a fxml file, copy the code inside the fxml file which works and paste it inside the new fxml file inside the new directory, I get the same long error message.

Here is the class from where I run to program:

package com.example.demo;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.stage.Stage;

import java.io.IOException;

public class HelloApplication extends Application {
    @Override
    public void start(Stage stage) throws IOException {
        FXMLLoader fxmlLoader = new FXMLLoader(HelloApplication.class.getResource("testing.fxml"));
        Scene scene = new Scene(fxmlLoader.load(), 320, 240);
        stage.setTitle("Hello!");
        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) {
        launch();
    }
}

and here is the fxml file which IntelliJ creates for me:

<?xml version="1.0" encoding="UTF-8"?>

<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>

<AnchorPane xmlns="http://javafx.com/javafx"
            xmlns:fx="http://javafx.com/fxml"
            fx:controller="com.example.demo.HelloController"
            prefHeight="400.0" prefWidth="600.0">

</AnchorPane>

here is the long error message:

Exception in Application start method
java.lang.reflect.InvocationTargetException
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:119)
    at java.base/java.lang.reflect.Method.invoke(Method.java:578)
    at javafx.graphics@19/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:465)
    at javafx.graphics@19/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:364)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
    at java.base/java.lang.reflect.Method.invoke(Method.java:578)
    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1081)
Caused by: java.lang.RuntimeException: Exception in Application start method
    at javafx.graphics@19/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:901)
    at javafx.graphics@19/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:196)
    at java.base/java.lang.Thread.run(Thread.java:1589)
Caused by: java.lang.IllegalStateException: Location is not set.
    at javafx.fxml@19/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2541)
    at javafx.fxml@19/javafx.fxml.FXMLLoader.load(FXMLLoader.java:2516)
    at com.example.demo/com.example.demo.HelloApplication.start(HelloApplication.java:14)
    at javafx.graphics@19/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:847)
    at javafx.graphics@19/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:484)
    at javafx.graphics@19/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:457)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
    at javafx.graphics@19/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:456)
    at javafx.graphics@19/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
Exception running application com.example.demo.HelloApplication

Please let me know if any further information is needed in order to figure out the problem. I don't know what else to show, considering that I've tried to keep everything the same between the different fxml files, to narrow down what could be wrong.

JavaFX load fxml file issues

0 Answers0