public static void saveImageFailure()throws Exception{
        Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard();
        Transferable contents = clip.getContents(null);
        if(contents.isDataFlavorSupported(DataFlavor.imageFlavor)){
            BufferedImage image = (BufferedImage)contents.getTransferData(DataFlavor.imageFlavor);
            ImageIO.write(image, "JPG", new File("C:\\tmp101.jpg"));        
        }
    }

    public static void saveImage()throws Exception{
        Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard();
        Transferable contents = clip.getContents(null);
        if(contents.isDataFlavorSupported(DataFlavor.imageFlavor)){
            BufferedImage image = (BufferedImage)contents.getTransferData(DataFlavor.imageFlavor);
            //save in PNG
            File f = new File("C:\\tmp100.png");
            ImageIO.write(image, "PNG", f);
            //read
            Image img = ImageIO.read(f);
            BufferedImage bufferedImage = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);  
            Graphics2D g = bufferedImage.createGraphics();  
            g.drawImage(img, null, null);  
            //write in JPG
            ImageIO.write(bufferedImage, "JPG", new File("C:\\tmp101.jpg"));
            f.delete();            
        }
    }

        if(contents.isDataFlavorSupported(DataFlavor.imageFlavor)){
            BufferedImage image = (BufferedImage)contents.getTransferData(DataFlavor.imageFlavor);
            BufferedImage bi = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_RGB);
            Graphics g = bi.getGraphics();
            g.drawImage(image, 0, 0, null);
            ImageIO.write(bi, "JPG", new File("C:\\tmp105.jpg"));
        }