return defaultLang;
        }

        return normalizeLang(value);
    }

    /**
     * Normalizes a language string.
     *
     * @param value The language string to normalize.
     * @return The normalized language string.
     */
    public String normalizeLang(final String value) {
        if (StringUtil.isBlank(value)) {
            return null;
        }

    /**
     * The name of the request header.
     */
    @Required
    @Size(max = 100)
    public String name;

    /**
     * The value of the request header.
     */
    @Required
    @Size(max = 1000)
    public String value;

    /**
     * The web configuration ID associated with this request header.
     */
    @Required
    @Size(max = 1000)
    public String webConfigId;

            }

            @Override
            public Integer getAsInteger(String propertyKey) {
                String value = get(propertyKey);
                if (value == null) {
                    return null;
                }
                try {
                    return Integer.valueOf(value);
                } catch (NumberFormatException e) {
                    return null;
                }
            }

        }

        public void setRequestURI(String requestURI) {
            this.requestURI = requestURI;
        }

        public void addHeader(String name, String value) {
            headers.put(name, value);
        }

        @Override
        public String getQueryString() {
            return queryString;
        }

        @Override
        public String getServletPath() {

    @CustomSize(maxKey = "form.admin.max.input.size")
    public String virtualHosts;

    /** Sort order for displaying configurations */
    @Required
    @Min(value = 0)
    @Max(value = 2147483647)
    @ValidateTypeFailure
    public Integer sortOrder;

    /** User who created this configuration */
    @Size(max = 1000)
    public String createdBy;

     */
    @Required
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String query;

    /**
     * The maximum number of results to return.
     */
    @Required
    @Min(value = 0)
    @Max(value = 2147483647)
    @ValidateTypeFailure
    public Integer maxSize;

    /**
     * The boost score for matched results.
     */
    @Required
    @ValidateTypeFailure
    public Float boost;

        fessConfig.setSystemProperty("spnego.allow.unsecure.basic", String.valueOf(isCheckboxEnabled(form.spnegoAllowUnsecureBasic)));
        fessConfig.setSystemProperty("spnego.prompt.ntlm", String.valueOf(isCheckboxEnabled(form.spnegoPromptNtlm)));
        fessConfig.setSystemProperty("spnego.allow.localhost", String.valueOf(isCheckboxEnabled(form.spnegoAllowLocalhost)));

        value = "ja-JP";
        assertEquals("ja", systemHelper.normalizeLang(value));

        value = "ja_JP";
        assertEquals("ja", systemHelper.normalizeLang(value));

        value = "ja_JP_AAA";
        assertEquals("ja", systemHelper.normalizeLang(value));

        value = "zh";
        assertEquals("zh", systemHelper.normalizeLang(value));

        value = "zh-cn";

        assertTrue(queryCommand.lowercaseWildcard);
    }

    @Test
    public void test_convertWildcardQuery_withBoost() throws Exception {
        // Test with different boost values
        QueryContext queryContext = new QueryContext("test*", false);
        WildcardQuery wildcardQuery = new WildcardQuery(new Term("title", "test*"));

        // Test with boost = 0.5

    }

    // Test case sensitivity for configuration values
    @Test
    public void test_configurationCaseSensitivity() {
        String[] testValues = { "TRUE", "True", "true", "FALSE", "False", "false" };

        for (String value : testValues) {
            ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {