protected Map<String, Supplier<String>> updateConfigListenerMap = new HashMap<>();

    /** A set of names of threads that are currently waiting. */
    protected Set<String> waitingThreadNames = Collections.synchronizedSet(new HashSet<>());

    /**
     * Initializes the SystemHelper.
     * This method sets up system properties, caches, and other initial configurations.
     */
    @PostConstruct

    /**
     * Performs a scroll search for processing large result sets efficiently.
     *
     * This method uses OpenSearch scroll API to iterate through large numbers of
     * documents without loading them all into memory at once.
     *
     * @param params The search request parameters
     * @param cursor Function to process each document in the result set
     * @param userBean Optional user information for permission checking

						<data>
							<type>file</type>
							<src>${project.build.directory}/generated-packaging/deb/copyright</src>
							<dst>/usr/share/doc/fess/copyright</dst>
						</data>
						<!-- Adds and sets permission on default directories -->
						<data>
							<type>template</type>
							<paths>
								<path>${packaging.fess.pid.dir}</path>
							</paths>
							<mapper>
								<type>perm</type>