assertEquals(Integer.valueOf(3), map.remove("two"));
    assertThat(strings).containsExactly("one", "three").inOrder();
    assertEquals(mapEntry("three", 5), map.subMap("one", false, "zzz", true).pollLastEntry());
    assertThat(strings).contains("one");
  }

  @GwtIncompatible // NavigableMap
  public void testAsMapNavigableSubViewKeySetsDoNotSupportAdd() {

    assertEquals(Integer.valueOf(3), map.remove("two"));
    assertThat(strings).containsExactly("one", "three").inOrder();
    assertEquals(mapEntry("three", 5), map.subMap("one", false, "zzz", true).pollLastEntry());
    assertThat(strings).contains("one");
  }

  @GwtIncompatible // NavigableMap
  public void testAsMapNavigableSubViewKeySetsDoNotSupportAdd() {

  ): String = formatDate(Date(System.currentTimeMillis() + timeUnit.toMillis(delta)))

  private fun formatDate(date: Date): String {
    val rfc1123: DateFormat = SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US)
    rfc1123.timeZone = TimeZone.getTimeZone("GMT")
    return rfc1123.format(date)
  }

  private fun assertNotCached(response: MockResponse) {
    server.enqueue(
      response