return this;
    }

    @Override
    public Writer append(@Nullable CharSequence csq, int start, int end) {
      checkPositionIndexes(start, end, csq == null ? "null".length() : csq.length());
      return this;
    }

    @Override
    public Writer append(char c) {
      return this;
    }

    @Override
    public void flush() {}

   * @throws NullPointerException if {@code string} is null
   */
  @Override
  public String escape(String string) {
    checkNotNull(string); // GWT specific check (do not optimize)
    // Inlineable fast-path loop which hands off to escapeSlow() only if needed
    int length = string.length();
    for (int index = 0; index < length; index++) {
      if (escape(string.charAt(index)) != null) {
        return escapeSlow(string, index);
      }

       <version>1.4.0</version>
     </dependency>
     ```

 *  **`Request.Builder` no longer accepts null if a request body is required.**
    Passing null will now fail for request methods that require a body. Instead
    use an empty body such as this one:

    ```java
        RequestBody.create(null, new byte[0]);
    ```

 * **`CertificatePinner` now supports wildcard hostnames.** As always with

        synchronized(this@Relay) {
          upstreamReader = null
          ******@****.***All()
        }
      }
    }

    override fun timeout(): Timeout = timeout

    @Throws(IOException::class)
    override fun close() {
      if (fileOperator == null) return // Already closed.
      fileOperator = null

      var fileToClose: RandomAccessFile? = null
      synchronized(this@Relay) {
        sourceCount--

    if (delegate != null) {
      metadata =
          Ints.constrainToRange(size(), CompactHashing.DEFAULT_SIZE, CompactHashing.MAX_SIZE);
      delegate.clear(); // invalidate any iterators left over!
      table = null;
      size = 0;
    } else {
      Arrays.fill(requireKeys(), 0, size, null);
      Arrays.fill(requireValues(), 0, size, null);
      CompactHashing.tableClear(requireTable());

    /**
     * Initializes the form with default null values.
     * This method resets all fields to their default state for creating a new entry.
     */
    public void initialize() {
        id = null;
        url = null;
        threadName = null;
        errorName = null;
        errorLog = null;
        errorCount = null;
        lastAccessTime = null;
        configId = null;
    }

   *   public boolean isDone() {
   *     return ref.get() == null;
   *   }
   * });
   * }
   *
   * @throws RuntimeException if timed out or interrupted while waiting
   */
  public static void awaitClear(WeakReference<?> ref) {
    awaitDone(() -> ref.get() == null);
  }

  /**
   * Tries to perform a "full" garbage collection cycle (including processing of weak references and

        HttpUrl link = response.request().url().resolve(href);
        if (link == null) continue; // URL is either invalid or its scheme isn't http/https.
        HttpUrl linkWithoutFragment = link.newBuilder().fragment(null).build();
        if (!queue.offer(linkWithoutFragment)) break; // Queue is full.
      }
    }
  }

  public static void main(String[] args) throws IOException {

    node.thread = null; // mark as 'deleted'
    restart:
    while (true) {
      Waiter pred = null;
      Waiter curr = waitersField;
      if (curr == Waiter.TOMBSTONE) {
        return; // give up if someone is calling complete
      }
      Waiter succ;
      while (curr != null) {
        succ = curr.next;
        if (curr.thread != null) { // we aren't unlinking this node, update pred.

  @Volatile private var canceled = false

  override fun onResponse(
    call: Call,
    response: Response,
  ) {
    processResponse(response)
  }

  internal fun processResponse(response: Response) {
    response.use {
      if (!response.isSuccessful) {
        listener.onFailure(this, null, response)
        return
      }