fun queuedCalls(): List<Call> =
    this.withLock {
      return Collections.unmodifiableList(readyAsyncCalls.map { it.call })
    }

  /** Returns a snapshot of the calls currently being executed. */
  fun runningCalls(): List<Call> =
    this.withLock {
      return Collections.unmodifiableList(runningSyncCalls + runningAsyncCalls.map { it.call })
    }

          if (cookies == null) cookies = mutableListOf()
          cookies.addAll(decodeHeaderAsJavaNetCookies(url, header))
        }
      }
    }

    return if (cookies != null) {
      Collections.unmodifiableList(cookies)
    } else {
      emptyList()
    }
  }

  /**
   * Convert a request header to OkHttp's cookies via [HttpCookie]. That extra step handles

        val cookie = parse(url, cookieStrings[i]) ?: continue
        if (cookies == null) cookies = mutableListOf()
        cookies.add(cookie)
      }

      return if (cookies != null) {
        Collections.unmodifiableList(cookies)
      } else {
        emptyList()
      }
    }
  }

) : KtTreeVisitorVoid() {
    private val collectedDiagnostics = mutableListOf<KtDiagnostic>()

    val diagnostics: List<KtDiagnostic>
        get() = Collections.unmodifiableList(collectedDiagnostics)

    override fun visitErrorElement(element: PsiErrorElement) {
        collectedDiagnostics += ConeSyntaxDiagnostic(element.errorDescription)

        if (protocolsCopy != this.protocols) {
          this.routeDatabase = null
        }

        // Assign as an unmodifiable list. This is effectively immutable.
        this.protocols = Collections.unmodifiableList(protocolsCopy)
      }

    /**
     * Sets the verifier used to confirm that response certificates apply to requested hostnames for
     * HTTPS connections.
     *