FULL PRODUCT VERSION :
Java Plug-in 10.25.2.17
Using JRE version 1.7.0_25-b17 Java HotSpot(TM) 64-Bit Server VM




ADDITIONAL OS VERSION INFORMATION :
Windows 7

A DESCRIPTION OF THE PROBLEM :
JavaFX scene included in Swing JDialog not starting from Web Start

REGRESSION. Last worked in version 7u25


ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.NullPointerException
at javax.swing.SwingUtilities.appContextGet(SwingUtilities.java:1861)
at javax.swing.JComponent.getDefaultLocale(JComponent.java:2775)
at javax.swing.JComponent.<init>(JComponent.java:600)
at javafx.embed.swing.JFXPanel.<init>(JFXPanel.java:197)
at error.Error.start(Error.java:26)
at com.sun.javafx.applet.FXApplet2$1.run(FXApplet2.java:132)
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:724)
Exception in runnable
java.lang.RuntimeException: java.lang.NullPointerException
at com.sun.javafx.applet.FXApplet2$1.run(FXApplet2.java:148)
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:724)
Caused by: java.lang.NullPointerException
at javax.swing.SwingUtilities.appContextGet(SwingUtilities.java:1861)
at javax.swing.JComponent.getDefaultLocale(JComponent.java:2775)
at javax.swing.JComponent.<init>(JComponent.java:600)
at javafx.embed.swing.JFXPanel.<init>(JFXPanel.java:197)
at error.Error.start(Error.java:26)
at com.sun.javafx.applet.FXApplet2$1.run(FXApplet2.java:132)
... 8 more


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class Error extends Application {

    @Override
    public void start(Stage primaryStage) {
        StackPane root = new StackPane();

        final Scene scene = new Scene(root, 800, 650);
        final JFXPanel fxPanel = new JFXPanel();
        JDialog jDialog = new JDialog();
        jDialog.add(fxPanel);

        Platform.runLater(new Runnable() {
            @Override
            public void run() {
                fxPanel.setScene(scene);
            }
        });

    }

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