* Allow kubernetes components to react to SIGTERM signal and shutdown gracefully. ([#57756](https://github.com/kubernetes/kubernetes/pull/57756), [@mborsz](https://github.com/mborsz))
* fix incorrect error info when creating an azure file PVC failed ([#56550](https://github.com/kubernetes/kubernetes/pull/56550), [@andyzhangx](https://github.com/andyzhangx))

    return new IllegalArgumentException(
        "Multiple entries with same " + conflictDescription + ": " + entry1 + " and " + entry2);
  }

  /**
   * A builder for creating immutable map instances, especially {@code public static final} maps
   * ("constant maps"). Example:
   *
   * <pre>{@code
   * static final ImmutableMap<String, Integer> WORD_TO_INT =

- Fix for volume reconstruction of CSI ephemeral volumes ([#113347](https://github.com/kubernetes/kubernetes/pull/113347), [@dobsonj](https://github.com/dobsonj)) [SIG Node, Storage and Testing]

spoke.

  `As wet as ever,' said Alice in a melancholy tone:  `it doesn't
seem to dry me at all.'

  `In that case,' said the Dodo solemnly, rising to its feet, `I
move that the meeting adjourn, for the immediate adoption of more
energetic remedies--'

  `Speak English!' said the Eaglet.  `I don't know the meaning of
half those long words, and, what's more, I don't believe you do

* fix incorrect error info when creating an azure file PVC failed ([#56550](https://github.com/kubernetes/kubernetes/pull/56550), [@andyzhangx](https://github.com/andyzhangx))
* Retry 'connection refused' errors when setting up clusters on GCE. ([#57394](https://github.com/kubernetes/kubernetes/pull/57394), [@mborsz](https://github.com/mborsz))

 * your HTTP calls. This is because each client holds its own connection pool and thread pools.
 * Reusing connections and threads reduces latency and saves memory. Conversely, creating a client
 * for each request wastes resources on idle pools.
 *
 * Use `new OkHttpClient()` to create a shared instance with the default settings:
 *
 * ```java
 * // The singleton HTTP client.

          entryItr.remove();
          result = true;
        }
      }
      return result;
    }

    @Override
    public @Nullable Object[] toArray() {
      // creating an ArrayList so filtering happens once
      return Lists.newArrayList(iterator()).toArray();
    }

    @Override
    @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations

- Fixed kubelet creating extra sandbox for pods with RestartPolicyOnFailure after all containers succeeded ([#92614](https://github.com/kubernetes/kubernetes/pull/92614), [@tnqn](https://github.com/tnqn)) [SIG Node and Testing]

	// execute the HTTP request.
	// the content is expected to have the content of previous disk.
	response, err = s.client.Do(request)
	c.Assert(err, nil)
	c.Assert(response.StatusCode, http.StatusOK)

	// creating HTTP request to fetch the previously uploaded object.
	request, err = newTestSignedRequest(http.MethodGet, getGetObjectURL(s.endPoint, bucketName, objectName2),
		0, nil, s.accessKey, s.secretKey, s.signer)
	c.Assert(err, nil)

    assertThat(response1).isEqualTo("")
    assertThat(server.takeRequest().sequenceNumber).isEqualTo(0)

    // Now make the second request which will restrict the first HTTP/2 connection from creating new
    // streams.
    client.newCall(request).enqueue(callback)
    val response2 = responses.take()
    assertThat(response2).isEqualTo("DEF")
    assertThat(server.takeRequest().sequenceNumber).isEqualTo(1)