public static void createDebugBorder(JComponent c, Color color) {
        if (color == null) {
            color = Color.BLACK;
        }
        c.setBorder(BorderFactory.createLineBorder(color));
    }
public static void createDebugBorder ( JComponent c , Color color ) { if ( color == null ) { color = Color . BLACK ; } c . setBorder ( BorderFactory . createLineBorder ( color ) ) ; }
Useful debug function to place a colored, line border around a component
for layout management debugging.

@param c
the component
@param color
the border color