/** * Converts a string to a UTF8 byte array. * * @param string string to be converted * @return byte array */ private static byte[] utf8(final String string) { final char[] arr = string.toCharArray(); final int al = arr.length; final TokenBuilder tb = new TokenBuilder(al << 1); for (int c = 0; c < al; ++c) { final char ch = arr[c]; tb.add( Character.isHighSurrogate(ch) && c < al - 1 && Character.isLowSurrogate(arr[c + 1]) ? Character.toCodePoint(ch, arr[++c]) : ch); } return tb.finish(); }