- Kube-log-runner: Added the `-log-file-size` parameter to rotate log output into a new file once it reached a certain size. Introduced `-log-file-age` to enable automatic removal of old output files, and `-flush-interval` to support periodic flushing. ([#127667](https://github.com/kubernetes/kubernetes/pull/127667), [@zylxjtu](ht...

      new NullPointerTester().testInstanceMethods(this, Visibility.PACKAGE);
      return this;
    }

    final void assertNonNullValues(Object... expectedValues) {
      assertEquals(expectedValues.length, arguments.size());
      for (int i = 0; i < expectedValues.length; i++) {
        assertEquals("Default value for parameter #" + i, expectedValues[i], arguments.get(i));
      }
    }

   *     then this is not logically a {@code Converter} at all, and should just implement {@link
   *     Function}.
   */
  @ForOverride
  protected abstract A doBackward(B b);

  // API (consumer-side) methods

  /**
   * Returns a representation of {@code a} as an instance of type {@code B}.
   *
   * @return the converted value; is null <i>if and only if</i> {@code a} is null
   */

may occasionally increase the size of the cluster a bit more than it is actually needed, when there are
unschedulable pods, scale up is required and cloud provider is slow to set up networking for new nodes.
Anyway, the cluster should get back to the proper size after 10 min.

### Deployment

     *
     * @param <K> the key type of {@link IdentityHashMap}
     * @param <V> the value type of {@link IdentityHashMap}
     * @param expectedMaxSize the expected maximum size of the map
     * @return a new instance of {@link IdentityHashMap}
     * @see IdentityHashMap#IdentityHashMap(int)
     */
    public static <K, V> IdentityHashMap<K, V> newIdentityHashMap(final int expectedMaxSize) {

* don't sync daemonsets with selectors that match all pods ([#23223](https://github.com/kubernetes/kubernetes/pull/23223), [@mikedanese](https://github.com/mikedanese))
* Trusty: Avoid reaching GCE custom metadata size limit ([#22818](https://github.com/kubernetes/kubernetes/pull/22818), [@andyzheng0831](https://github.com/andyzheng0831))

      LockGraphNode node = lock.getLockGraphNode();
      // Iterate in reverse because locks are usually locked/unlocked in a
      // LIFO order.
      for (int i = acquiredLockList.size() - 1; i >= 0; i--) {
        if (acquiredLockList.get(i) == node) {
          acquiredLockList.remove(i);
          break;
        }
      }
    }
  }

- The server-side apply feature is now beta ([#81956](https://github.com/kubernetes/kubernetes/pull/81956), [@apelisse](https://github.com/apelisse))

- For `kubectl`, `--server-side` now migrates ownership of all fields used by client-side-apply to the specified `--fieldmanager`. This prevents fields previously specified using kubectl from being able to live outside of server-side-apply's management and become undeleteable. ([#112905](https://github.com/kubernetes/kubernetes/pull/112905), [@alexzielenski](https://github.com/alexzielenski))...

 * </p>
 *
 * @author koichik
 */
public abstract class CopyUtil {

    /**
     * Do not instantiate.
     */
    protected CopyUtil() {
    }

    /** Buffer size used for copying. */
    protected static final int DEFAULT_BUF_SIZE = 4096;

    // ////////////////////////////////////////////////////////////////
    // from InputStream to OutputStream
    //
    /**