I am currently implementing an MP3 player using Java and JavaFX. I am trying to use the javafx.scene.media package inside my Controller class but I am getting an error stack trace.
Any guidance as to how this can be fixed?
Code and output included
Code(Controller.java):
package sample;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.*;
import javafx.scene.layout.Pane;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.scene.media.MediaView;
import java.io.*;
import java.util.*;
import java.net.URL;
public class Controller implements Initializable {
@FXML
private Pane pane;
@FXML
private Label songLabel;
@FXML
private Button playButton, pauseButton, resetButton, previousButton, nextButton;
@FXML
private ComboBox<String> speedBox;
@FXML
private Slider volumeSlider;
@FXML
private ProgressBar songProgressBar;
private Media media;
private MediaPlayer mediaPlayer;
private File directory;
private File[] files;
private ArrayList<File> songs;
private int songNumber;
private int[] speeds = {25, 50, 75, 100, 125, 150, 175, 200}; // percent
private Timer timer;
private TimerTask task;
private boolean running;
@Override
public void initialize(URL url, ResourceBundle resourceBundle) {
songs = new ArrayList<File>();
directory = new File("music");
files = directory.listFiles();
if (files != null) {
for (File file: files) {
songs.add(file);
System.out.println(file);
}
}
media = new Media(songs.get(songNumber).toURI().toString());
mediaPlayer = new MediaPlayer(media);
MediaView mediaView = new MediaView(mediaPlayer);
songLabel.setText(songs.get(songNumber).getName());
}
public void playMedia() {
}
public void pauseMedia() {
}
public void resetMedia() {
}
public void previousMedia() {
}
public void nextMedia() {
}
public void changeSpeed(ActionEvent Event) {
}
public void beginTimer() {
}
public void cancelTimer() {
}
}
Output:
Exception in Application start method
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:465)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:364)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)
Caused by: java.lang.RuntimeException: Exception in Application start method
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:901)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:196)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.IllegalAccessError: class com.sun.media.jfxmediaimpl.NativeMediaManager (in unnamed module @0x290241c7) cannot access class com.sun.glass.utils.NativeLibLoader (in module javafx.graphics) because module javafx.graphics does not export com.sun.glass.utils to unnamed module @0x290241c7
at com.sun.media.jfxmediaimpl.NativeMediaManager.lambda$new$0(NativeMediaManager.java:111)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at com.sun.media.jfxmediaimpl.NativeMediaManager.<init>(NativeMediaManager.java:108)
at com.sun.media.jfxmediaimpl.NativeMediaManager$NativeMediaManagerInitializer.<clinit>(NativeMediaManager.java:78)
at com.sun.media.jfxmediaimpl.NativeMediaManager.getDefaultInstance(NativeMediaManager.java:90)
at com.sun.media.jfxmedia.MediaManager.canPlayProtocol(MediaManager.java:78)
at com.sun.media.jfxmedia.locator.Locator.<init>(Locator.java:240)
at javafx.scene.media.Media.<init>(Media.java:393)
**at sample.Controller.initialize(Controller.java:66)** **// error??????**
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2655)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3331)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3287)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3255)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3227)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3203)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3196)
at sample.Main.start(Main.java:14)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:847)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:484)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:457)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:456)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:184)
... 1 more
Exception running application sample.Main
Process finished with exit code 1
Thank you for any help given.
