Java: Save BufferedImage as JPEG

Here is a way to save BufferedImage as JEPG using ImageWriter.

public static void writeAsJpeg(BufferedImage image, float quality, File outputFile) throws IOException {
    ImageWriter writer = getImageWriter("jpg");
    JPEGImageWriteParam iwp = new JPEGImageWriteParam(Locale.getDefault());
    iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    iwp.setCompressionQuality(quality);
    try (ImageOutputStream ios = ImageIO.createImageOutputStream(outputFile)){
        writer.setOutput(ios);
        writer.write(null, new IIOImage(image,null,null),iwp);
        ios.flush();
    }
    finally{
        writer.dispose();
    }
}

private static ImageWriter getImageWriter(String ext) {
    Iterator iter = ImageIO.getImageWritersByFormatName(ext);
    if (iter.hasNext()) {      
        return iter.next();    
    }
    throw new IllegalStateException("Unsupported " + ext);
}