VCard.setAvatar(Byte[] bytes)/(Url url)/(Byte[] bytes, String mimeType) Not work

Bytes

File f=new File("C:/testIcon/action2.jpg");

BufferedImage o=ImageIO.read(f);

ByteArrayOutputStream b=new ByteArrayOutputStream();

ImageIO.write(o, "jpg", b);

byte[] img=b.toByteArray();

vCard.setAvatar(imageInByte);

Url example

vCard.setAvatar(new Url(http://www.adiumxtras.com/images/thumbs/adiumtwit_twitters_icon_for_adium_1_3197 1_7892_thumb.png));