public static byte[] toBigEndianUtf16Bytes(char[] chars, int offset, int length) {byte[] result = new byte[length * 2];int end = offset + length;int resultIndex = 0;for (int i = offset; i < end; ++i) {char ch = chars[i];result[resultIndex++] = (byte) (ch >> 8);result[resultIndex++] = (byte) ch;}return result;}