targetMap.put("existing", "value");
        String configParam = "new.param=value\nconfig.setting=true";
        ParameterUtil.loadConfigParams(targetMap, configParam);
        assertEquals(3, targetMap.size());
        assertEquals("value", targetMap.get("existing"));
        assertEquals("value", targetMap.get("new.param"));
        assertEquals("true", targetMap.get("config.setting"));
    }

    @Test

    /**
     * Set the value of hostname, used in parameter comment. <br>
     * Even if empty string, treated as empty plainly. So "IF pmb != null" is false if empty.
     * @param hostname The parameter value of hostname. (NotNull)
     */
    public void setHostname(String hostname) {
        registerVariable("hostname", hostname);
    }

    private final SystemHelper systemHelper;

    private int consecutiveFailures = 0;

    /**
     * Constructs a new load control monitor target.
     *
     * @param systemHelper the system helper to update with CPU usage
     */
    public LoadControlMonitorTarget(final SystemHelper systemHelper) {
        this.systemHelper = systemHelper;
    }

    @Override

    //                                                                      ==============
    /**
     * Retrieves and displays cached content for a specific document.
     *
     * @param form the cache form containing document ID and highlight query
     * @return ActionResponse containing the cached document content or error redirect
     */
    @Execute
    public ActionResponse index(final CacheForm form) {

    }

    // PUT /api/admin/general
    /**
     * Updates the general system settings.
     * Merges the provided settings with existing configuration and applies changes.
     *
     * @param body the general settings data to update
     * @return JSON response with update status
     */
    @Execute
    public JsonResponse<ApiResult> put$index(final EditBody body) {
        validateApi(body, messages -> {});

    private static final Logger logger = Logger.getLogger(FessWebResourceRoot.class.getName());

    /**
     * Constructs a new FessWebResourceRoot with the specified context.
     *
     * @param context the Tomcat context for this web resource root
     */
    public FessWebResourceRoot(final Context context) {
        super(context);
    }

    /**

     * Options can be prefixed with version numbers to specify compatibility.
     * Format: "version:option" or "version-:option" (for version and above).
     *
     * @param values the array of JVM options to filter
     * @return the filtered array of JVM options applicable to the current Java version
     */
    public static String[] filterJvmOptions(final String[] values) {

    protected static void deleteDocuments(final String queryString) {
        List<String> docIds = new ArrayList<>();
        Response response = given().contentType("application/json")
                .param("scroll", "1m")
                .param("q", queryString)
                .get(getEsUrl() + "/" + DOC_INDEX_NAME + "/_search");
        JsonPath jsonPath = JsonPath.from(response.asString());

     *
     * @return the expiration time in milliseconds
     */
    public long getExpiry() {
        return expiry;
    }

    /**
     * Sets the expiration time for thumbnails.
     *
     * @param expiry the expiration time in milliseconds (must be positive)
     * @return this PurgeThumbnailJob instance for method chaining
     */
    public PurgeThumbnailJob expiry(final long expiry) {
        if (expiry > 0) {

        return logger;
    }

    /**
     * Gets the appropriate extractor for the given response data.
     * Selects an extractor based on the MIME type or falls back to the Tika extractor.
     *
     * @param responseData the response data containing the document to extract
     * @return the extractor instance for processing the document
     * @throws FessSystemException if no suitable extractor can be found
     */
    @Override