In my Java app I use the following code when the main frame is initialized to override the default "About" dialog behavior on MacOS (see here for the Apple extensions).
Application a = Application.getApplication();
a.setAboutHandler(new AboutHandler() {
@Override
public void handleAbout(AppEvent.AboutEvent arg0)
{
AboutDialog ad = new AboutDialog(EditorFrame.this, true);
ad.setLocationRelativeTo(null);
ad.setVisible(true);
}
});
When running the application from the command line:
java -Xdock:name="MyApp" -Dapple.laf.useScreenMenuBar=true -jar myapp.jar
Selecting MyApp->About from the menu give the default about screen. Alternatively, when running from inside of NetBeans the custom AboutDialog is displayed. Is there a specific command line argument I need to pass to the Java runtime to enable the use of the Apple Java extensions?
