protected void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D)g;
RoundedCornerGenerator generator = new RoundedCornerGenerator();
BufferedImage image = null;
try {
image = generator.buildShadow("99ccff", "white", 100, 100, 20f, 20f, 6, 0.5f);
}
catch (Exception e) {
e.printStackTrace();
System.exit(-1);
}