hopefully this helps the once-in-a-while "app doesn't close" issue .. ?

once in a while i've noticed after choosing "exit" from the menu, the
application doesn't terminate. the window always closes as expected,
but the java process seems to hang around. not exactly sure what
behaviour triggers this yet

src/main/java/org/fenix/llanfair/Llanfair.java

@@ -75,6 +75,7 @@ public class Llanfair extends BorderlessFrame implements TableModelListener,
 		registerFonts();
 		setResizable(Settings.windowUserResizable.get());
 		setLookAndFeel();
+		setDefaultCloseOperation(DISPOSE_ON_CLOSE);
 		addComponentListener(this);
 
 		run = new Run();