// TODO check for Jvm or handle Long/long correctly
//    assertThat(request.tag(Long::class)).isSameAs(longTag)
  }

  /** Confirm that we don't accidentally share the backing map between objects. */
  @Test
  fun tagsAreImmutable() {
    val builder =
      Request.Builder()
        .url("https://square.com")
    val requestA = builder.tag(String::class, "a").build()

          .build()

      fun run() {
        val request = Request.Builder()
            .url("http://publicobject.com/secrets/hellosecret.txt")
            .build()
      }
    ```

    To avoid making many retries when authentication isn't working, you can return null to give up. For example, you may want to skip the retry when these exact credentials have already been attempted:

    ```kotlin

land land-4-sale.us landes.museum landrover langevag.no langevåg.no lans.museum lanxess lapy.pl laquila.it lardal.no larsson.museum larvik.no lasalle laspezia.it lat latina.it latino latrobe lavagis.no lavangen.no law law.pro law.za lawyer laz.it lazio.it lb lc lc.it lcube-server.de lds le.it leadpages.co leangaviika.no lease leasing.aero leaŠgaviika.no lebesby.no lebork.pl lebtimnetz.de lecce.it lecco.it leclerc leczna.pl lefrak leg.br legal legnica.pl lego leikanger.no leirfjord.no leirvik.no leitungsen.de...