title: Java FX Exception (Media Player Application)
body: <p>I'm just starting to use Java FX and cannot for the life of me figure out why this exception keeps occurring. </p>
  
  <p>I have 2 classes. One called Main and the other called Player. Here is what they each look like....</p>
  
  <p><strong>Main Class</strong></p>
  
  <pre><code>package application;
  
  import javafx.application.Application;
  
  import javafx.stage.Stage;
  
  import javafx.scene.Scene;
  
  import javafx.scene.layout.BorderPane;
  
  import javafx.scene.paint.Color;
  
      public class Main extends Application {
      @Override
      public void start(Stage primaryStage) {
          Player player = new Player("/Applications/Nacho.mp4");
          Scene scene = new Scene (player, 720, 480, Color.BLACK);
          primaryStage.setScene(scene);
          primaryStage.show();
      }
  
      public static void main(String[] args) {
          launch(args);
      }
  }
  </code></pre>
  
  <p><strong>Player Class</strong></p>
  
  <pre><code>package application;
  
  import javafx.scene.layout.BorderPane;
  
  import javafx.scene.layout.Pane;
  
  import javafx.scene.media.Media;
  
  import javafx.scene.media.MediaPlayer;
  
  import javafx.scene.media.MediaView;
  
      public class Player extends BorderPane {
      Media media;
      MediaPlayer player;
      MediaView view;
      Pane nPane;
  
      public Player(String file){
          media = new Media(file);
          player = new MediaPlayer(media);
          view = new MediaView(player);
          nPane = new Pane();
          nPane.getChildren().add(view);
          setCenter(nPane);
          player.play();
      }
  }
  </code></pre>
  
  <p>Here is what the compiler spits out when I run the program...</p>
  
  <p><strong>START</strong></p>
  
  <pre>
  Exception in Application start method
  java.lang.reflect.InvocationTargetException
  
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:497)
      at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
      at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:497)
      at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
  Caused by: java.lang.RuntimeException: Exception in Application start method
      at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
      at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$152(LauncherImpl.java:182)
      at com.sun.javafx.application.LauncherImpl$$Lambda$51/1323468230.run(Unknown Source)
      at java.lang.Thread.run(Thread.java:745)
  Caused by: java.lang.IllegalArgumentException: uri.getScheme() == null! uri == 'Applications/Nacho.mp4'
      at com.sun.media.jfxmedia.locator.Locator.(Locator.java:211)
      at javafx.scene.media.Media.(Media.java:391)
      at application.Player.(Player.java:16)
      at application.Main.start(Main.java:13)
      at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$159(LauncherImpl.java:863)
      at com.sun.javafx.application.LauncherImpl$$Lambda$54/1046396900.run(Unknown Source)
      at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$172(PlatformImpl.java:326)
      at com.sun.javafx.application.PlatformImpl$$Lambda$47/186276003.run(Unknown Source)
      at com.sun.javafx.application.PlatformImpl.lambda$null$170(PlatformImpl.java:295)
      at com.sun.javafx.application.PlatformImpl$$Lambda$49/287662571.run(Unknown Source)
      at java.security.AccessController.doPrivileged(Native Method)
      at com.sun.javafx.application.PlatformImpl.lambda$runLater$171(PlatformImpl.java:294)
      at com.sun.javafx.application.PlatformImpl$$Lambda$48/237061348.run(Unknown Source)
      at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
  Exception running application application.Main
  
  </pre>
  
  <p><strong>FINISH</strong></p>
  
  <p>I know that the issue occurs as soon as the Player object is instantiated in Main. As soon the Player object uses it's constructor and creates a Media object, which gets passed the String file location, that's when I get the error. I ran the program with an empty constructor for the Player object and it ran fine so the issue is clearly in my Player Class, again when the Media object is instantiated. Am I passing the correct parameters? "/Applications/Nacho.mp4" </p>
  
  <p>If someone can please tell me how to fix this, I would greatly appreciate it. I literally can't move forward with this project otherwise. Thank you!</p>