I develop an OpenOffice addon which uses JavaFX for UI.
Code as in "JavaFX in Swing" example works fine (UI elements are created using java code).
But once I try to load UI from FXML file I face following problem:
Line on which problem happens:
parent = FXMLLoader.load(getClass().getResource("LoginDialog.fxml"));
Stack trace:
java.lang.ExceptionInInitializerError
at javafx.fxml.JavaFXBuilderFactory.<init>(JavaFXBuilderFactory.java:53)
at javafxswingapplication1.JavaFXSwingApplication1.createScene(JavaFXSwingApplication1.java:82)
at javafxswingapplication1.JavaFXSwingApplication1.access$000(JavaFXSwingApplication1.java:30)
at javafxswingapplication1.JavaFXSwingApplication1$2.run(JavaFXSwingApplication1.java:74)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:179)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:176)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl$4.run(PlatformImpl.java:176)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:29)
at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:73)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.NullPointerException
at javafx.fxml.FXMLLoader.<clinit>(FXMLLoader.java:1689)
... 12 more
Exception in runnable
java.lang.NullPointerException
The code is as in netbeans example:
/**
*
* @author Alexander
*/
public class JavaFXSwingApplication1 extends JApplet {
private static final int JFXPANEL_WIDTH_INT = 300;
private static final int JFXPANEL_HEIGHT_INT = 250;
private static JFXPanel fxContainer;
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
} catch (Exception e) {
}
JFrame frame = new JFrame("JavaFX 2 in Swing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JApplet applet = new JavaFXSwingApplication1();
applet.init();
frame.setContentPane(applet.getContentPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
applet.start();
}
});
}
@Override
public void init() {
fxContainer = new JFXPanel();
fxContainer.setPreferredSize(new Dimension(JFXPANEL_WIDTH_INT, JFXPANEL_HEIGHT_INT));
add(fxContainer, BorderLayout.CENTER);
// create JavaFX scene
Platform.runLater(new Runnable() {
@Override
public void run() {
createScene();
}
});
}
private void createScene() {
Parent parent = null;
try {
parent = FXMLLoader.load(getClass().getResource("LoginDialog.fxml"));
} catch (Throwable ex) {
ex.printStackTrace();
}
Button btn = new Button();
btn.setText("Say 'Hello World'");
btn.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
System.out.println("Hello World!");
}
});
StackPane root = new StackPane();
root.getChildren().add(btn);
fxContainer.setScene(new Scene(parent));
}
}
I wonder if someone faced problem like this. Please help. I'm out of options.
I suspect the issue is somehow related with Java classloader.