Key:      k,
		Operator: metav1.LabelSelectorOpExists,
	}
	s.MatchExpressions = append(s.MatchExpressions, expression)
	return s
}

// NotExist injects a matchExpression (with an operator NotExist) to the inner labelSelector.
func (s *LabelSelectorWrapper) NotExist(k string) *LabelSelectorWrapper {
	expression := metav1.LabelSelectorRequirement{
		Key:      k,
		Operator: metav1.LabelSelectorOpDoesNotExist,
	}

	// but can be a state transition event from NotExist or Undetermined
	// if the region is a synthetic region representing task inheritance
	// from the parent goroutine.
	Start *Event

	// Region end event. Normally EventRegionEnd event or nil,
	// but can be a state transition event to NotExist if the goroutine
	// terminated without explicitly ending the region.
	End *Event

		const mainLine = 21
		want := []evDesc{
			{trace.EventStateTransition, "Goroutine Running->Runnable", []frame{
				{"main.main", mainLine + 82},
			}},
			{trace.EventStateTransition, "Goroutine NotExist->Runnable", []frame{
				{"main.main", mainLine + 11},
			}},
			{trace.EventStateTransition, "Goroutine Running->Waiting", []frame{
				{"runtime.block", 0},
				{"main.main.func1", 0},
			}},

	// along with a nil error if the list of matching versions
	// is known to be empty.
	//
	// If the underlying repository does not exist,
	// Versions returns an error matching errors.Is(_, os.NotExist).
	Versions(ctx context.Context, prefix string) (*Versions, error)

	// Stat returns information about the revision rev.
	// A revision can be any identifier known to the underlying service:

	defer chtmpdir(t)()

	_, err := filepath.EvalSymlinks("notexist")
	if !os.IsNotExist(err) {
		t.Errorf("expected the file is not found, got %v\n", err)
	}

	err = os.Symlink("notexist", "link")
	if err != nil {
		t.Fatal(err)
	}
	defer os.Remove("link")

	_, err = filepath.EvalSymlinks("link")
	if !os.IsNotExist(err) {
		t.Errorf("expected the file is not found, got %v\n", err)
	}

stdout '"Hash": "fc3a09f3dc5cfe0d7a743ea18f1f5226e68b3777"'
! stdout 'RepoSum'

# go mod download vcstest/hello@nonexist should fail, still print origin info
! go mod download -x -json vcs-test.golang.org/git/hello.git@nonexist
cp stdout hellononexist.json
stdout '"Version": "nonexist"'
stdout '"Error":.*unknown revision nonexist'
stdout '"RepoSum": "r1:c0/9JCZ25lxoBiK3[+]3BhACU4giH49flcJmBynJ[+]Jvmc="'
! stdout '"(TagPrefix|TagSum|Ref|Hash)"'

			nodeNameSlice = append(nodeNameSlice, node.Node().Name)
		}
		nodeNames = &nodeNameSlice
	} else {
		nodeList = &v1.NodeList{}
		for _, node := range nodes {
			nodeList.Items = append(nodeList.Items, *node.Node())
		}
	}

	args = &extenderv1.ExtenderArgs{
		Pod:       pod,
		Nodes:     nodeList,
		NodeNames: nodeNames,
	}

	if err := h.send(h.filterVerb, args, &result); err != nil {

		// Check if linkPath still exists
		if _, err := os.Stat(linkPath); err != nil {
			if !os.IsNotExist(err) {
				return fmt.Errorf("failed to check if path %s exists: %v", linkPath, err)
			}
			// linkPath has already been removed
			return nil
		}
		// Remove file
		if err := os.Remove(linkPath); err != nil && !os.IsNotExist(err) {
			return fmt.Errorf("failed to remove file %s: %v", linkPath, err)
		}
		return nil

            final Document doc = builder.parse(is);
            final NodeList snapshotNodeList = doc.getElementsByTagName("snapshot");
            if (snapshotNodeList.getLength() > 0) {
                final NodeList nodeList = snapshotNodeList.item(0).getChildNodes();
                for (int i = 0; i < nodeList.getLength(); i++) {
                    final Node node = nodeList.item(i);

    }

    protected void parseTextContent(final Node node, final StringBuilder buf) {
        if (node.hasChildNodes()) {
            final NodeList nodeList = node.getChildNodes();
            for (int i = 0; i < nodeList.getLength(); i++) {
                final Node childNode = nodeList.item(i);
                parseTextContent(childNode, buf);
            }
        } else if (node.getNodeType() == Node.TEXT_NODE) {