return checkNotNull(iterator);
  }

  /**
   * Returns an iterator over the merged contents of all given {@code iterators}, traversing every
   * element of the input iterators. Equivalent entries will not be de-duplicated.
   *
   * <p>Callers must ensure that the source {@code iterators} are in non-descending order as this
   * method does not sort its input.
   *

- Kubenet: added HostPort IPv6 support.  HostPortManager: operates only with one IP family, failing if receives port mapping entries with different IP families.  HostPortSyncer: operates only with one IP family, skipping portmap entries with different IP families ([#80854](https://github.com/kubernetes/kubernetes/pull/80854), [@aojea](https://github.com/aojea))

            Map<Object, Object> result = new HashMap<>();
            for (Object key : keys) {
              Object value = new Object();
              result.put(key, value);
              // add extra entries
              result.put(value, key);
            }
            return result;
          }
        };
    LoadingCache<Object, Object> cache = CacheBuilder.newBuilder().build(loader);

		}
	}

	select {
	case <-sys.configLoaded:
	default:
		close(sys.configLoaded)
	}
	return nil
}

// Init - initializes config system by reading entries from config/iam
func (sys *IAMSys) Init(ctx context.Context, objAPI ObjectLayer, etcdClient *etcd.Client, iamRefreshInterval time.Duration) {
	bootstrapTraceMsg("IAM initialization started")
	globalServerConfigMu.RLock()

  - A `create` or `update` API request with duplicate items in a keyed list no longer wipes out managedFields. Examples include env var entries with the same name, or port entries with the same containerPort in a pod spec.

*   Added support for adding a Windows node ([#53553](https://github.com/kubernetes/kubernetes/pull/53553),[ @bsteciuk](https://github.com/bsteciuk))

#### **Juju**

*   Added support for SAN entries in the master node certificate. ([#54234](https://github.com/kubernetes/kubernetes/pull/54234),[ @hyperbolic2346](https://github.com/hyperbolic2346))

            Map<Object, Object> result = new HashMap<>();
            for (Object key : keys) {
              Object value = new Object();
              result.put(key, value);
              // add extra entries
              result.put(value, key);
            }
            return result;
          }
        };
    LoadingCache<Object, Object> cache = CacheBuilder.newBuilder().build(loader);

   * broke our cached response parser because it split on the first colon. This regression test
   * exists to help us read these old bad cache entries.
   *
   * https://github.com/square/okhttp/issues/227
   */
  @Test
  fun testGoldenCacheResponse() {
    cache.close()
    server.enqueue(
      MockResponse
        .Builder()

			Description: MetricDescription{
				Namespace: nodeMetricNamespace,
				Subsystem: ilmSubsystem,
				Name:      expiryMissedTierJournalTasks,
				Help:      "Number of tier journal entries cleanup missed due to busy system",
				Type:      counterMetric,
			},
		}
		expNumWorkers := MetricV2{
			Description: MetricDescription{
				Namespace: nodeMetricNamespace,

- A terminating pod on a node that is not caused by preemption no longer prevents `kube-scheduler` from preempting pods on that node