*/
    public void stop() {
        running.set(false);

        if (serverSocket != null && !serverSocket.isClosed()) {
            try {
                serverSocket.close();
            } catch (IOException e) {
                log.debug("Error closing server socket", e);
            }
        }

        if (serverThread != null) {
            try {
                serverThread.join(5000); // Wait up to 5 seconds

    }

    @Test
    void testVersionParsing() {
        checkVersionParsing("1", 1, 0, 0, 0, null);
        checkVersionParsing("1.2", 1, 2, 0, 0, null);
        checkVersionParsing("1.2.3", 1, 2, 3, 0, null);
        checkVersionParsing("1.2.3-1", 1, 2, 3, 1, null);
        checkVersionParsing("1.2.3-alpha-1", 1, 2, 3, 0, "alpha-1");
        checkVersionParsing("1.2-alpha-1", 1, 2, 0, 0, "alpha-1");

    @Override
    public Mirror getMirror(ArtifactRepository repository, List<Mirror> mirrors) {
        String repoId = repository.getId();

        if (repoId != null && mirrors != null) {
            for (Mirror mirror : mirrors) {
                if (repoId.equals(mirror.getMirrorOf()) && matchesLayout(repository, mirror)) {
                    return mirror;
                }
            }

    @Override
    public ResponseData execute(final RequestData request) {
        if (listener != null) {
            listener.onRequestStart(this, request);
        }

        List<Exception> exceptionList = null;
        try {
            int count = 0;
            while (count < maxRetryCount) {
                if (listener != null) {
                    listener.onRequest(this, request, count);
                }

                @Override
                public void registerData(String key, Object value) {
                    // Mock implementation
                }
            };
        } catch (Exception e) {
            // If ActionRuntime constructor fails, return null and handle in test methods
            return null;
        }
    }

     *
     * @param path
     *            The path to the properties file. If {@code null}, a {@link FileAccessException} is thrown.
     * @throws FileAccessException
     *             If the file cannot be accessed or created.
     */
    public DynamicProperties(final String path) {
        this(path == null ? null : new File(path));
    }

    /**

        existNextPage = false;
        pageSize = getDefaultPageSize();
        currentPageNumber = getDefaultCurrentPageNumber();

        id = null;
        suggestWord = null;
        boost = null;
        createdBy = null;
        createdTime = null;
        versionNo = null;

    }

    /**
     * Gets the default current page number.
     *
     * @return the default current page number
     */

        paramMap.put("url_exclude_pattern", ".*");

        try {
            indexUpdateCallback.isUrlCrawlable(paramMap, null);
            fail("Expected NullPointerException for null URL");
        } catch (NullPointerException e) {
            // Expected behavior - the method doesn't handle null URLs
        }
    }

    public void test_isUrlCrawlable_nullUrlWithoutPattern() {

  public void testRemove() {
    create().remove(null);
  }

  public void testClear() {
    create().clear();
  }

  public void testContainsKey() {
    boolean unused = create().containsKey(null);
  }

  public void testContainsValue() {
    boolean unused = create().containsValue(null);
  }

  public void testGet() {
    Object unused = create().get(null);
  }

  public void testPut() {

        if (tag.equalsIgnoreCase(node.getNodeName())) {
            if (attrName != null) {
                final Node attr = node.getAttributes().getNamedItem(attrName);
                if (attr == null || !attrValue.equals(attr.getNodeValue())) {
                    return false;
                }
            }
            if (id == null) {
                if (css == null) {
                    return true;
                }