code: private static CoderResult _malformed (@Nonnull final ByteBuffer in)
    {
      in.position (in.position () - 1);
      return CoderResult.malformedForLength (1);
    }
docs: <p>
  Resets the input buffer position to just before the last byte read, and
  returns a result indicating to skip the last byte.
  </p>
  
  @param in
  The input buffer
  @return CoderResult.malformedForLength(1);