- Client-go: improved allocation behavior of the delaying workqueue when handling objects with far-future ready times. ([#83945](https://github.com/kubernetes/kubernetes/pull/83945), [@barkbay](https://github.com/barkbay))

   */
  @SuppressWarnings("GoodTime") // reading system time without TimeSource
  public static void touch(File file) throws IOException {
    checkNotNull(file);
    if (!file.createNewFile() && !file.setLastModified(System.currentTimeMillis())) {
      throw new IOException("Unable to update modification time of " + file);
    }
  }

  /**

While you are waiting, you go with your crush and pick a table, you sit and talk with your crush for a long time (as your burgers are very fancy and take some time to prepare).

As you are sitting at the table with your crush, while you wait for the burgers, you can spend that time admiring how awesome, cute and smart your crush is ✨😍✨.

<img src="/img/async/concurrent-burgers/concurrent-burgers-05.png" class="illustration">

oh! she knows such a very little!  Besides, SHE'S she, and I'm I,
and--oh dear, how puzzling it all is!  I'll try if I know all the
things I used to know.  Let me see:  four times five is twelve,
and four times six is thirteen, and four times seven is--oh dear!
I shall never get to twenty at that rate!  However, the
Multiplication Table doesn't signify:  let's try Geography.

type currentScannerCycle struct {
	current        uint64
	next           uint64
	started        time.Time
	cycleCompleted []time.Time
}

// clone returns a clone.
func (z currentScannerCycle) clone() currentScannerCycle {
	z.cycleCompleted = append(make([]time.Time, 0, len(z.cycleCompleted)), z.cycleCompleted...)
	return z

		errFatal(err)
		clientCanceled := make(chan time.Duration, 1)
		go func() {
			started := time.Now()
			for resp := range st.responses {
				err = resp.Err
			}
			clientCanceled <- time.Since(started)
		}()
		serverEnd := <-serverCanceled
		clientEnd := <-clientCanceled
		t.Log("server cancel time:", serverEnd)
		t.Log("client cancel time:", clientEnd)
		if !errors.Is(err, context.DeadlineExceeded) {

   * in the returned list.
   *
   * <p>The function is applied lazily, invoked when needed. This is necessary for the returned list
   * to be a view, but it means that the function will be applied many times for bulk operations
   * like {@link List#contains} and {@link List#hashCode}. For this to perform well, {@code
   * function} should be fast. To avoid lazy evaluation when the returned list doesn't need to be a

* Fixes a goroutine leak in kube-apiserver when a request times out. ([#83333](https://github.com/kubernetes/kubernetes/pull/83333), [@lavalamp](https://github.com/lavalamp))

   *         .build();
   * }
   *
   * <p>Elements appear in the resulting list in the same order they were added to the builder.
   *
   * <p>Builder instances can be reused; it is safe to call {@link #build} multiple times to build
   * multiple lists in series. Each new list contains all the elements of the ones created before
   * it.
   *
   * @since 2.0
   */

你将看到使用了正确路径（和前缀）和正确标签的自动化 API 文档，包括了来自所有子模块的路径：

<img src="/img/tutorial/bigger-applications/image01.png">

## 多次使用不同的 `prefix` 包含同一个路由器 { #include-the-same-router-multiple-times-with-different-prefix }

你也可以在*同一*路由器上使用不同的前缀来多次使用 `.include_router()`。

在有些场景这可能有用，例如以不同的前缀公开同一个的 API，比方说 `/api/v1` 和 `/api/latest`。

这是一个你可能并不真正需要的高级用法，但万一你有需要了就能够用上。