DirectoryCacheScope.IMMEDIATE_CHILDREN);

        // Shutdown
        directoryLeaseManager.shutdown();

        // Verify cleanup
        assertNull(directoryLeaseManager.getCacheEntry(directoryPath));
    }

    @Test
    public void testMultipleDirectories() {
        String dir1 = "/test/dir1";
        String dir2 = "/test/dir2";

    public void tearDown() throws Exception {
        if (storage != null && !storage.isDestroyed()) {
            try {
                storage.close();
            } catch (Exception e) {
                // Ignore cleanup exceptions
            }
        }
        if (masterPassword != null) {
            Arrays.fill(masterPassword, '\0');
        }
    }

    @Test
    public void testEncryptDecrypt() throws Exception {

  - [Changes by Kind](#changes-by-kind-2)
    - [Feature](#feature-1)
    - [Bug or Regression](#bug-or-regression-2)
    - [Other (Cleanup or Flake)](#other-cleanup-or-flake)
  - [Dependencies](#dependencies-2)
    - [Added](#added-2)
    - [Changed](#changed-2)
    - [Removed](#removed-2)
- [v1.32.5](#v1325)
  - [Downloads for v1.32.5](#downloads-for-v1325)

  - [Changelog since v1.20.11](#changelog-since-v12011)
  - [Changes by Kind](#changes-by-kind-3)
    - [API Change](#api-change)
    - [Bug or Regression](#bug-or-regression-3)
    - [Other (Cleanup or Flake)](#other-cleanup-or-flake)
  - [Dependencies](#dependencies-3)
    - [Added](#added-3)
    - [Changed](#changed-3)
    - [Removed](#removed-3)
- [v1.20.11](#v12011)
  - [Downloads for v1.20.11](#downloads-for-v12011)

            cipher.init(encrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, keySpec, gcmSpec);
            return cipher;
        } finally {
            // Guaranteed cleanup of all key material
            if (key != null) {
                SecureKeyManager.secureWipe(key);
            }
            if (keyCopy != null) {
                SecureKeyManager.secureWipe(keyCopy);

        this.leaseToPath = new ConcurrentHashMap<>();
        this.scheduler = Executors.newScheduledThreadPool(1);
        this.changeNotifier = new DirectoryChangeNotifier(this);

        // Schedule periodic cache cleanup
        scheduler.scheduleAtFixedRate(this::cleanupExpiredEntries, 60, 60, TimeUnit.SECONDS);
    }

    /**
     * Request a directory lease
     *
     * @param directoryPath directory path

     *
     * @param sessionId the session ID to update
     * @param name the name to set for the crawling session (uses system name if blank)
     * @param dayForCleanup number of days until cleanup (sets expiration if >= 0)
     * @throws FessSystemException if unable to store the updated crawling session
     */
    public void updateParams(final String sessionId, final String name, final int dayForCleanup) {

     */
    public HtmlTagBasedGenerator() {
        super();
    }

    /**
     * Destroys this thumbnail generator and releases any resources.
     * This implementation is empty as no cleanup is required.
     */
    @Override
    public void destroy() {
    }

    /**
     * Creates a thumbnail generation task for the specified document.
     *

  - [Changelog since v1.26.11](#changelog-since-v12611)
  - [Changes by Kind](#changes-by-kind-3)
    - [Feature](#feature-3)
    - [Bug or Regression](#bug-or-regression-3)
    - [Other (Cleanup or Flake)](#other-cleanup-or-flake)
  - [Dependencies](#dependencies-3)
    - [Added](#added-3)
    - [Changed](#changed-3)
    - [Removed](#removed-3)
- [v1.26.11](#v12611)
  - [Downloads for v1.26.11](#downloads-for-v12611)

  - [Changelog since v1.28.14](#changelog-since-v12814)
  - [Changes by Kind](#changes-by-kind)
    - [Feature](#feature)
    - [Bug or Regression](#bug-or-regression)
    - [Other (Cleanup or Flake)](#other-cleanup-or-flake)
  - [Dependencies](#dependencies)
    - [Added](#added)
    - [Changed](#changed)
    - [Removed](#removed)
- [v1.28.14](#v12814)
  - [Downloads for v1.28.14](#downloads-for-v12814)