labelSet = labels.Merge(labelSet, rc.Spec.Selector)
			selector = labelSet.AsSelector()
		}
	case rsKind:
		if rs, err := rsl.ReplicaSets(pod.Namespace).Get(owner.Name); err == nil {
			if other, err := metav1.LabelSelectorAsSelector(rs.Spec.Selector); err == nil {
				if r, ok := other.Requirements(); ok {
					selector = selector.Add(r...)
				}
			}
		}
	case ssKind:

	return u.selector.Empty()
}

func (u *useOnceSelector) String() string {
	return u.selector.String()
}

func (u *useOnceSelector) Add(r ...pkglabels.Requirement) pkglabels.Selector {
	u.selector = u.selector.Add(r...)
	return u
}

func (u *useOnceSelector) Requirements() (pkglabels.Requirements, bool) {
	return u.selector.Requirements()
}

func (u *useOnceSelector) DeepCopySelector() pkglabels.Selector {

        result.projectPath == selector.projectPath
        result.projectPath() == selector.projectPath()
        result.projectName == selector.projectName
        result.requestedCapabilities == selector.requestedCapabilities
    }

    def "serializes root build ProjectComponentSelector"() {
        given:

			if t := selectors[key]; t != nil {
				if selector != t {
					selector.copyOf(t)
				}
				continue
			}

			// If the selector is in the wrong block copy it into the target
			// block.
			if selector.Block != tuple.Block {
				t := selector.copyInto(tuple.Block)
				selector.copyOf(t)
				selectors[key] = t
				continue
			}

			// The selector is in the target block. Add it to the map so it

- Kubelet: fixed log spam from kubelet_getters.go `Path does not exist`. ([#112650](https://github.com/kubernetes/kubernetes/pull/112650), [@rphillips](https://github.com/rphillips))
- Kubelet: fixed nil pointer in reflector start for standalone mode. ([#113501](https://github.com/kubernetes/kubernetes/pull/113501), [@pacoxu](https://github.com/pacoxu))

		default:
			return selector, fmt.Errorf("%q is not a valid selector operator", expr.Operator)
		}
	}
	return selector, nil
}

// ParseToLabelSelector parses a string representing a selector into a LabelSelector object.
// Note: This function should be kept in sync with the parser in pkg/labels/selector.go
func ParseToLabelSelector(selector string) (*LabelSelector, error) {

		policy := admissionregistrationv1beta1.Equivalent
		obj.MatchPolicy = &policy
	}
	if obj.NamespaceSelector == nil {
		selector := metav1.LabelSelector{}
		obj.NamespaceSelector = &selector
	}
	if obj.ObjectSelector == nil {
		selector := metav1.LabelSelector{}
		obj.ObjectSelector = &selector
	}
}

// SetDefaults_ValidatingWebhook sets defaults for webhook validating

	labels[labelKey] = labelValue
	return labels
}

// Clones the given selector and returns a new selector with the given key and value added.
// Returns the given selector, if labelKey is empty.
func CloneSelectorAndAddLabel(selector *metav1.LabelSelector, labelKey, labelValue string) *metav1.LabelSelector {
	if labelKey == "" {
		// Don't need to add a label.
		return selector
	}

	// Clone.
	newSelector := new(metav1.LabelSelector)

    public boolean requiresMetadata() {
        for (VersionSelector selector : selectors) {
            if (selector.requiresMetadata()) {
                return true;
            }
        }
        return false;
    }

    @Override
    public boolean matchesUniqueVersion() {
        for (VersionSelector selector : selectors) {
            if (!selector.matchesUniqueVersion()) {
                return false;
            }

		},
		{
			selector: "x y",
			labels:   map[string]string{},
			valid:    false,
		},
	}
	for _, test := range tests {
		labels, err := ConvertSelectorToLabelsMap(test.selector)
		if test.valid && err != nil {
			t.Errorf("selector: %s, expected no error but got: %s", test.selector, err)
		} else if !test.valid && err == nil {
			t.Errorf("selector: %s, expected an error", test.selector)
		}