* @param strict a strict object.
     * @throws XmlPullParserException XmlPullParserException if
     * any.
     * @throws IOException IOException if any.
     */
    private void checkUnknownElement(XmlPullParser parser, boolean strict) throws XmlPullParserException, IOException {
        if (strict) {
            throw new XmlPullParserException("Unrecognised tag: '" + parser.getName() + "'", parser, null);

                "alias_priority": alias_priority,
                "validation_alias": validation_alias,
                "serialization_alias": serialization_alias,
                "strict": strict,
                "json_schema_extra": current_json_schema_extra,
            }
        )
        kwargs["pattern"] = pattern or regex

        use_kwargs = {k: v for k, v in kwargs.items() if v is not _Unset}

                    .get());
            options.addOption(Option.builder(STRICT_ARTIFACT_DESCRIPTOR_POLICY)
                    .longOpt("strict-artifact-descriptor-policy")
                    .hasArg()
                    .desc(
                            "Defines 'strict' artifact descriptor policy. Supported values are 'true', 'false' (default).")
                    .get());

     *
     * @param maxPathLength maximum total path length
     * @param maxComponentLength maximum length for path components
     * @param allowUncPaths whether to allow UNC paths
     * @param strictMode strict validation mode
     */
    public PathValidator(int maxPathLength, int maxComponentLength, boolean allowUncPaths, boolean strictMode) {
        this.maxPathLength = maxPathLength;

                .build());
        options.addOption(Option.builder(STRICT_ARTIFACT_DESCRIPTOR_POLICY)
                .longOpt("strict-artifact-descriptor-policy")
                .hasArg()
                .desc("Defines 'strict' artifact descriptor policy. Supported values are 'true', 'false' (default).")
                .build());
        options.addOption(Option.builder(IGNORE_TRANSITIVE_REPOSITORIES)

            validator.validatePath("//server\0/share");
        });

        // Test path with control characters in strict mode
        PathValidator strictValidator = new PathValidator(260, 255, true, true);
        assertThrows(SmbException.class, () -> {
            // Control character will be caught in strict mode
            strictValidator.validatePath("//server\u0001/share");
        });

        if (metadata != null && metadata.getPath() != null && Files.isRegularFile(metadata.getPath())) {
            try {
                Map<String, ?> options = Collections.singletonMap(MetadataReader.IS_STRICT, Boolean.FALSE);

                Metadata pluginGroupMetadata =
                        metadataReader.read(metadata.getPath().toFile(), options);

    know that that it is application specific, it's not part of the specification.


    grant_type: the OAuth2 spec says it is required and MUST be the fixed string "password".
        This dependency is strict about it. If you want to be permissive, use instead the
        OAuth2PasswordRequestForm dependency class.
    username: username string. The OAuth2 spec requires the exact field name "username".

    /**
     * Denotes validation as performed by Maven 3.1. This validation level is meant for new projects.
     */
    int VALIDATION_LEVEL_MAVEN_3_1 = 31;

    /**
     * Denotes strict validation as recommended by the current Maven version.
     */
    int VALIDATION_LEVEL_STRICT = VALIDATION_LEVEL_MAVEN_3_0;

    /**

        if (metadata != null && metadata.getFile() != null && metadata.getFile().isFile()) {
            try {
                Map<String, ?> options = Collections.singletonMap(MetadataReader.IS_STRICT, Boolean.FALSE);

                Metadata repoMetadata = metadataReader.read(metadata.getFile(), options);

                mergeMetadata(versions, repoMetadata, repository);
            } catch (IOException e) {