How to use java.time

  @Override
  public Long convert(Instant source) {
    return source.toEpochMilli();
  }
}

@Override
public ResponseCookieBuilder maxAge(long maxAgeSeconds) {
  this.maxAge = maxAgeSeconds >= 0 ? Duration.ofSeconds(maxAgeSeconds) : Duration.ofSeconds(-1);
  return this;
}

  @Override
  public OffsetDateTime convert(Calendar source) {
    return calendarToZonedDateTime(source).toOffsetDateTime();
  }
}

  @Override
  public Instant convert(Long source) {
    return Instant.ofEpochMilli(source);
  }
}

  @Override
  public Instant convert(Calendar source) {
    return calendarToZonedDateTime(source).toInstant();
  }
}

  @Override
  public LocalDate convert(LocalDateTime source) {
    return source.toLocalDate();
  }
}

  @Override
  public LocalDate convert(Calendar source) {
    return calendarToZonedDateTime(source).toLocalDate();
  }
}

  @Override
  public LocalDateTime convert(Calendar source) {
    return calendarToZonedDateTime(source).toLocalDateTime();
  }
}

  @Override
  public Instant convert(OffsetDateTime source) {
    return source.toInstant();
  }
}

  @Override
  public LocalTime convert(LocalDateTime source) {
    return source.toLocalTime();
  }
}

  @Override
  public LocalTime convert(ZonedDateTime source) {
    return source.toLocalTime();
  }
}

  @Override
  public LocalDate convert(OffsetDateTime source) {
    return source.toLocalDate();
  }
}

  @Override
  public LocalDateTime convert(OffsetDateTime source) {
    return source.toLocalDateTime();
  }
}

  @Override
  public ZonedDateTime convert(OffsetDateTime source) {
    return source.toZonedDateTime();
  }
}

  @Override
  public LocalTime convert(OffsetDateTime source) {
    return source.toLocalTime();
  }
}

  @Override
  public Instant convert(ZonedDateTime source) {
    return source.toInstant();
  }
}

  @Override
  public LocalDate convert(ZonedDateTime source) {
    return source.toLocalDate();
  }
}

  @Override
  public LocalDateTime convert(ZonedDateTime source) {
    return source.toLocalDateTime();
  }
}

  @Override
  public OffsetDateTime convert(ZonedDateTime source) {
    return source.toOffsetDateTime();
  }
}

  @Override
  public LocalTime convert(Calendar source) {
    return calendarToZonedDateTime(source).toLocalTime();
  }
}