if (!parsed.add(tagName)) {
                    throw new XMLStreamException("Duplicated tag: '" + tagName + "'", parser.getLocation(), null);
                }
        }
#else
        if (!parsed.add(tagName)) {
            throw new XMLStreamException("Duplicated tag: '" + tagName + "'", parser.getLocation(), null);
        }
#end
        return tagName;
    }

    /**

    }

    @Override
    public Ref createLightWeightTag(String tagName) throws GitAPIException {
        return git.tag().setName(tagName).call();
    }

    public Ref createAnnotatedTag(String tagName, String message) throws GitAPIException {
        return git.tag().setName(tagName).setAnnotated(true).setMessage(message).call();
    }

    public Ref getHead() throws IOException {

        // start of tag marker
        scanner.next(2);

        // tag name
        scanner.mark();
        scanner.find(END_TAG_NAME);
        String tagName = scanner.region();
        visitor.onStartJavadocTag(tagName);
        scanner.skip(WHITESPACE_WITH_EOL);

        // value
        if (!scanner.lookingAt('}')) {
            scanner.mark();
            scanner.find('}');

            target.append("<${element.tagName}")
            for (int i = 0; i < element.attributes.length; i++) {
                Attr attr = element.attributes.item(i)
                target.append(" $attr.name=\"$attr.value\"")
            }

            element.childNodes.findAll { it instanceof Text }.each {
                assert it.textContent != null : "Found null text element in <$element.tagName>"
            }

	var tags []*tracing.CustomTag
	for tagName, tagInfo := range providerTags {
		if tagInfo == nil {
			log.Warnf("while building custom tags from provider, encountered nil custom tag: %s, skipping", tagName)
			continue
		}
		switch tag := tagInfo.Type.(type) {
		case *telemetrypb.Tracing_CustomTag_Environment:
			env := &tracing.CustomTag{
				Tag: tagName,
				Type: &tracing.CustomTag_Environment_{

		if se, ok := t.(xml.StartElement); ok {
			tagName := se.Name.Local
			switch tagName {
			case "AllowQuotedRecordDelimiter":
				var b bool
				if err = d.DecodeElement(&b, &se); err != nil {
					return err
				}
				args.AllowQuotedRecordDelimiter = b
			default:
				var s string
				if err = d.DecodeElement(&s, &se); err != nil {
					return err
				}
				switch tagName {
				case "FileHeaderInfo":

  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.cli.internal.extension.model</value>
    </default>
  </defaults>

  <classes>
    <class rootElement="true" xml.tagName="extensions" xsd.compositor="sequence">
      <name>CoreExtensions</name>
      <description>Extensions to load.</description>
      <version>1.0.0+</version>
      <fields>
        <field>

        return backingRepo.createBranch(branchName);
    }

    @Override
    public Ref createLightWeightTag(String tagName) throws GitAPIException {
        return backingRepo.createLightWeightTag(tagName);
    }

    public BlockingHttpServer.ExpectedRequest listVersions() {
        return server.get(backingRepo.getName() + "/info/refs", getRefsAction());
    }

public interface GitRepository {
    URI getUrl();

    Ref createBranch(String branchName) throws GitAPIException;

    Ref checkout(String branchName) throws GitAPIException;

    Ref createLightWeightTag(String tagName) throws GitAPIException;

    TestFile getWorkTree();

    TestFile file(Object... path);

    RevCommit commit(String message) throws GitAPIException;

}

// GetWebhookRevision extracts tag target revision from webhook object.
func GetWebhookRevision(wh admitv1.MutatingWebhookConfiguration) (string, error) {
	if tagName, ok := wh.ObjectMeta.Labels[label.IoIstioRev.Name]; ok {
		return tagName, nil
	}
	return "", fmt.Errorf("could not extract tag revision from webhook")
}

// DeleteTagWebhooks deletes the given webhooks.