key == this.key -> key.java.cast(value)
      else -> next[key]
    }

  /** Returns a [toString] consistent with [Map], with elements in insertion order. */
  override fun toString(): String =
    generateSequence<LinkedTags<*>>(seed = this) { it.next as? LinkedTags<*> }
      .toList()
      .reversed()
      .joinToString(prefix = "{", postfix = "}") { "${it.key}=${it.value}" }
}

    assertEvents(
      "take plan 1",
      "plan 0 cancel",
      "plan 0 TCP connect canceled",
    )
  }

  private fun assertEvents(vararg expected: String) {
    val actual = generateSequence { routePlanner.events.poll() }.toList()
    assertThat(actual).containsExactly(*expected)
  }

  private val Int.ms: Long
    get() = this * 1_000_000L

      return null // If we've failed 3 times, give up.
    }
    ```

    This above code relies on this `responseCount` extension val:

    ```kotlin
    val Response.responseCount: Int
      get() = generateSequence(this) { it.priorResponse }.count()
    ```
=== ":material-language-java: Java"
    ```java
      private final OkHttpClient client;

      public Authenticate() {