* This is not the same definition used by other Java APIs. (See a <a
   * href="https://docs.google.com/spreadsheets/d/1kq4ECwPjHX9B8QUCTPclgsDCXYaj7T-FlT4tB5q3ahk/edit">comparison
   * of several definitions of "whitespace"</a>.)
   *
   * <p>All Unicode White_Space characters are on the BMP and thus supported by this API.
   *

 * System.out.println(link);
 * ```
 *
 * which prints:
 *
 * ```
 * https://www.youtube.com/watch?v=cbP2N1BQdYc
 * ```
 *
 * ## What's in a URL?
 *
 * A URL has several components.
 *
 * ### Scheme
 *
 * Sometimes referred to as *protocol*, A URL's scheme describes what mechanism should be used to

    assertInvalid("http://\uDBFF\uDFFF", "Invalid URL host: \"\uDBFF\uDFFF\"")
  }

  @Test
  fun hostnameUri() {
    // Host names are special:
    //
    //  * Several characters are forbidden and must throw exceptions if used.
    //  * They don't use percent escaping at all.
    //  * They use punycode for internationalization.

    ```

    Conscrypt is the bundled security provider on Android so it is not necessary
    to configure it on that platform.

 *  New: `HttpUrl.addQueryParameter()` percent-escapes more characters.
    Previously several ASCII punctuation characters were not percent-escaped
    when used with this method. This does not impact already-encoded query
    parameters in APIs like `HttpUrl.parse()` and
    `HttpUrl.Builder.addEncodedQueryParameter()`.