private static InputStream checkForUtf8BOM(InputStream inputStream) throws IOException
    {
        PushbackInputStream pushbackInputStream = new PushbackInputStream(new BufferedInputStream(inputStream), 3);
        byte[] bom = new byte[3];
        if (pushbackInputStream.read(bom) != -1)
        {
            if (!(bom[0] == (byte) 0xEF && bom[1] == (byte) 0xBB && bom[2] == (byte) 0xBF))
                pushbackInputStream.unread(bom);
        }
        return pushbackInputStream;
    }