import java.lang.ref.WeakReference;
import java.util.AbstractCollection;
import java.util.AbstractMap;
import java.util.AbstractMap.SimpleEntry;
import java.util.AbstractSet;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;
import java.util.concurrent.CancellationException;
import java.util.concurrent.ConcurrentMap;

* Add direct serializer ([#26251](https://github.com/kubernetes/kubernetes/pull/26251), [@caesarxuchao](https://github.com/caesarxuchao))
* Add a NodeCondition "NetworkUnavailable" to prevent scheduling onto a node until the routes have been created  ([#26415](https://github.com/kubernetes/kubernetes/pull/26415), [@wojtek-t](https://github.com/wojtek-t))

	}
}

func addExpirationToCondValues(exp *time.Time, condValues map[string][]string) error {
	if exp == nil || exp.IsZero() || exp.Equal(timeSentinel) {
		return nil
	}
	dur := time.Until(*exp)
	if dur <= 0 {
		return errors.New("unsupported expiration time")
	}
	condValues["DurationSeconds"] = []string{strconv.FormatInt(int64(dur.Seconds()), 10)}
	return nil
}

	// We should only update the in-memory cache if there were no changes
	// to the in-memory cache since the disk loading began. If there
	// were changes to the in-memory cache we should wait for the next
	// cycle until we can safely update the in-memory cache.
	//
	// An in-memory cache must be replaced only if we know for sure that the
	// values loaded from disk are not stale. They might be stale if the

   ([#112643](https://github.com/kubernetes/kubernetes/pull/112643), [@SergeyKanzhelev](https://github.com/SergeyKanzhelev))
- `kubectl wait` command with `jsonpath` flag will wait for target path until timeout.
   ([#109525](https://github.com/kubernetes/kubernetes/pull/109525), [@jonyhy96](https://github.com/jonyhy96))

### Feature

- 'Added selector validation to `HorizontalPodAutoscaler`: when multiple HPAs

- Fixes a race condition in the iptables mode of kube-proxy in 1.27 and later
  that could result in some updates getting lost (e.g., when a service gets a
  new endpoint, the rules for the new endpoint might not be added until
  much later). ([#122756](https://github.com/kubernetes/kubernetes/pull/122756), [@hakman](https://github.com/hakman)) [SIG Network]

}

// deleteFile deletes a file or a directory if its empty unless recursive
// is set to true. If the target is successfully deleted, it will recursively
// move up the tree, deleting empty parent directories until it finds one
// with files in it. Returns nil for a non-empty directory even when
// recursive is set to false.
func (s *xlStorage) deleteFile(basePath, deletePath string, recursive, immediate bool) error {

- A static pod that is rapidly updated was failing to start until the Kubelet was restarted. ([#107900](https://github.com/kubernetes/kubernetes/pull/107900), [@smarterclayton](https://github.com/smarterclayton))

     * @see ReportSet#getId()
     */
    public java.util.Map<String, ReportSet> getReportSetsAsMap() {
        if (reportSetMap == null) {
            reportSetMap = new java.util.LinkedHashMap<String, ReportSet>();
            if (getReportSets() != null) {
                for (java.util.Iterator<ReportSet> i = getReportSets().iterator(); i.hasNext(); ) {

- Fixes a race condition in the iptables mode of kube-proxy in 1.27 and later
  that could result in some updates getting lost (e.g., when a service gets a
  new endpoint, the rules for the new endpoint might not be added until
  much later). ([#122757](https://github.com/kubernetes/kubernetes/pull/122757), [@hakman](https://github.com/hakman)) [SIG Network]