Change JButton gradient color, but only for one button, not all

Question

I want to change JButton gradient color, i found this, http://java2everyone.blogspot.com/2009/01/set-jbutton-gradient-color.html, but i want to change gradient

Answer 1

A little improvement over mre answer:

private static final class JGradientButton extends JButton{
    private JGradientButton(String text){
        super(text);
        setContentAreaFilled(false);
    }

    @Override
    protected void paintComponent(Graphics g){
        Graphics2D g2 = (Graphics2D)g.create();
        g2.setPaint(new GradientPaint(
                new Point(0, 0), 
                getBackground(), 
                new Point(0, getHeight()/3), 
                Color.WHITE));
        g2.fillRect(0, 0, getWidth(), getHeight()/3);
        g2.setPaint(new GradientPaint(
                new Point(0, getHeight()/3), 
                Color.WHITE, 
                new Point(0, getHeight()), 
                getBackground()));
        g2.fillRect(0, getHeight()/3, getWidth(), getHeight());
        g2.dispose();

        super.paintComponent(g);
    }
}