data.putValue("key2", "value2");
        data.putValue("key3", "value3");

        Set<String> keySet = data.getKeySet();
        assertNotNull(keySet);
        assertEquals(3, keySet.size());
        assertTrue(keySet.contains("key1"));
        assertTrue(keySet.contains("key2"));
        assertTrue(keySet.contains("key3"));
    }

    public void test_getKeySetEmpty() {
        // Test getKeySet on empty metadata

        initParams.put("jcifs.http.insecureBasic", "true");
        initParams.put("jcifs.http.basicRealm", "TestRealm");

        when(filterConfig.getInitParameterNames()).thenReturn(Collections.enumeration(initParams.keySet()));
        when(filterConfig.getInitParameter(anyString())).thenAnswer(invocation -> initParams.get(invocation.getArgument(0)));

        assertDoesNotThrow(() -> filter.init(filterConfig));
    }

    @Test

     *
     * @param cmdList the command list to add properties to
     */
    protected void addFessConfigProperties(final List<String> cmdList) {
        System.getProperties()
                .keySet()
                .stream()
                .filter(k -> k != null && k.toString().startsWith(Constants.FESS_CONFIG_PREFIX))
                .forEach(k -> addSystemProperty(cmdList, k.toString(), null, null));
    }

        initParams.put("jcifs.http.insecureBasic", "true");
        initParams.put("jcifs.http.basicRealm", "TestRealm");

        lenient().when(servletConfig.getInitParameterNames()).thenReturn(Collections.enumeration(initParams.keySet()));
        lenient().when(servletConfig.getInitParameter(anyString())).thenAnswer(invocation -> initParams.get(invocation.getArgument(0)));

        // Mock HTTP method for request - this is required for HttpServlet.service()

     * Cleanup method called when the bean is destroyed.
     * Stops all running processes and cleans up resources.
     */
    @PreDestroy
    public void destroy() {
        for (final String sessionId : runningProcessMap.keySet()) {
            if (logger.isInfoEnabled()) {
                logger.info("Stopping process {}", sessionId);
            }
            if (destroyProcess(sessionId) == 0 && logger.isInfoEnabled()) {

    }

    @Override
    public Enumeration<Object> keys() {
        return getProperties().keys();
    }

    @Override
    public Set<Object> keySet() {
        return getProperties().keySet();
    }

    @Override
    public void list(final PrintStream out) {
        getProperties().list(out);
    }

    @Override
    public void list(final PrintWriter out) {

            final UserInfoBhv userInfoBhv = ComponentUtil.getComponent(UserInfoBhv.class);
            userInfoBhv.selectList(cb -> {
                cb.query().setId_InScope(userInfoMap.keySet());
                cb.fetchFirst(userInfoMap.size());
            }).forEach(userInfo -> {
                final String code = userInfo.getId();
                final UserInfo entity = userInfoMap.get(code);

        } catch (InterruptedException e) {
            scheduler.shutdownNow();
            Thread.currentThread().interrupt();
        }

        // Stop all change watchers
        for (String path : directoryCache.keySet()) {
            changeNotifier.stopWatching(path);
        }

        // Clear caches
        directoryCache.clear();
        leaseToPath.clear();
    }

    /**

     */
    public int forceRotateAllKeys() {
        checkNotClosed();

        int rotated = 0;
        java.util.List<String> sessionIds = new java.util.ArrayList<>(sessionKeys.keySet());

        for (String sessionId : sessionIds) {
            // Skip archived keys
            if (!sessionId.contains(".v")) {
                try {
                    rotateSessionKey(sessionId);

            if (!path.equals("\\")) {
                key += path;
            }
            key = key.toLowerCase();

            final Iterator iter = referrals.map.keySet().iterator();
            while (iter.hasNext()) {
                final String _key = (String) iter.next();
                final int _klen = _key.length();
                boolean match = false;