/** 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
    public void init() {
        if (logger.isDebugEnabled()) {

 * query building, response formatting, and search log management.
 *
 * Key features:
 * - Document search with pagination and faceting
 * - Scroll search for large result sets
 * - Document retrieval by ID
 * - Bulk document updates
 * - Search parameter serialization/deserialization for cookies
 * - Integration with search engines and logging systems
 */
public class SearchHelper {

						<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>