code: @Deprecated
    public static int findByte(byte [] utf, int start, int end, byte b) {
      return org.apache.hadoop.util.UTF8ByteArrayUtils.findByte(utf, start, end, b);
    }
docs: Find the first occurrence of the given byte b in a UTF-8 encoded string
  @param utf a byte array containing a UTF-8 encoded string
  @param start starting offset
  @param end ending position
  @param b the byte to find
  @return position that first byte occures otherwise -1
  @deprecated use
  {@link org.apache.hadoop.util.UTF8ByteArrayUtils#findByte(byte[], int,
  int, byte)}