The following code results in a FileChooser that does not have it's title bar showing. The same code on Windows 8 has the title bar showing.

public void start(Stage stage) {
    FileChooser fileChooser = new FileChooser()
    fileChooser.setTitle("Select file")
    fileChooser.showSaveDialog(stage)
}

All three show methods do not show the title bar.

It works fine on Windows 8, java version "1.8.0_20".