gistfile1.txt

    protected Object bitmapToBase64(BitmapAgg myagg) throws HiveException {
        ByteArrayOutputStream bos;
        ObjectOutputStream oo;

        try {

            bos = new ByteArrayOutputStream();
            oo = new ObjectOutputStream(bos);
            myagg.bitmap.writeExternal(oo);
            oo.close();

        }catch(IOException ioe) {

            throw new HiveException(ioe);
        }

        byte[] bas64EncodedBitmap = Base64.encodeBase64(bos.toByteArray());
        return new String(bas64EncodedBitmap);
    }