private val configuredLoggers = CopyOnWriteArraySet<Logger>()

  private val knownLoggers =
    LinkedHashMap<String, String>().apply {
      val packageName = OkHttpClient::class.java.`package`?.name

      if (packageName != null) {
        this[packageName] = "OkHttp"
      }

      this[OkHttpClient::class.java.name] = "okhttp.OkHttpClient"
      this[Http2::class.java.name] = "okhttp.Http2"