JavaFX FileChooser to open image file, and display on ImageView, run on Ubuntu GNOME 15.10/NetBeans 8.1

Re-test "Use JavaFX FileChooser to open image file, and display on ImageView" on Ubuntu GNOME 15.10/NetBeans 8.1.

package javafxpixel;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.application.Application;
import javafx.embed.swing.SwingFXUtils;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.VBox;
import javafx.stage.FileChooser;
import javafx.stage.Stage;
import javax.imageio.ImageIO;

/**
 * @web http://java-buddy.blogspot.com/
 */
public class JavaFxPixel extends Application {
    
    ImageView myImageView;
    
    @Override
    public void start(Stage primaryStage) {
        Button btnLoad = new Button("Load");
        btnLoad.setOnAction(btnLoadEventListener);
         
        myImageView = new ImageView();        
         
        VBox rootBox = new VBox();
        rootBox.getChildren().addAll(btnLoad, myImageView);
         
        Scene scene = new Scene(rootBox, 300, 300);
         
        primaryStage.setTitle("java-buddy.blogspot.com");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    }
    
    EventHandler<ActionEvent> btnLoadEventListener
    = new EventHandler<ActionEvent>(){
 
        @Override
        public void handle(ActionEvent t) {
            FileChooser fileChooser = new FileChooser();
             
            //Set extension filter
            FileChooser.ExtensionFilter extFilterJPG = 
                    new FileChooser.ExtensionFilter("JPG files (*.JPG)", "*.JPG");
            FileChooser.ExtensionFilter extFilterjpg = 
                    new FileChooser.ExtensionFilter("jpg files (*.jpg)", "*.jpg");
            FileChooser.ExtensionFilter extFilterPNG = 
                    new FileChooser.ExtensionFilter("PNG files (*.PNG)", "*.PNG");
            FileChooser.ExtensionFilter extFilterpng = 
                    new FileChooser.ExtensionFilter("png files (*.png)", "*.png");
            fileChooser.getExtensionFilters()
                    .addAll(extFilterJPG, extFilterjpg, extFilterPNG, extFilterpng);

            //Show open file dialog
            File file = fileChooser.showOpenDialog(null);
            
            try {
                BufferedImage bufferedImage = ImageIO.read(file);
                Image image = SwingFXUtils.toFXImage(bufferedImage, null);
                myImageView.setImage(image);
            } catch (IOException ex) {
                Logger.getLogger(JavaFxPixel.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    };
}