*/
  @get:JvmName("fragment") val fragment: String?,
  /** Canonical URL. */
  private val url: String,
) {
  val isHttps: Boolean
    get() = scheme == "https"

  /** Returns this URL as a [java.net.URL][URL]. */
  @JvmName("url")
  fun toUrl(): URL {
    try {
      return URL(url)
    } catch (e: MalformedURLException) {
      throw RuntimeException(e) // Unexpected!
    }