boolean[] pbCallExecuted = { false };

        Consumer<ProcessBuilder> pbCall = pb -> {
            pb.redirectErrorStream(true);
            pb.environment().put("TEST_VAR", "test_value");
            pbCallExecuted[0] = true;
        };

        try {
            JobProcess jobProcess = processHelper.startProcess(sessionId, cmdList, pbCall);
            assertNotNull(jobProcess);

    }

    @Test
    public void test_setEnvMap() {
        Map<String, String> testEnv = new HashMap<>();
        testEnv.put("TEST_KEY", "TEST_VALUE");
        activityHelper.setEnvMap(testEnv);
        assertEquals(testEnv, activityHelper.getEnvMap());
    }

    @Test
    public void test_getEnvMap_withoutCustomMap() {

        try {
            // Test multiple value changes
            String[] testValues = { "http://localhost:9200", "https://elasticsearch.example.com", "http://127.0.0.1:9201",
                    "https://search.domain.com:443" };

            for (String testValue : testValues) {
                System.setProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS, testValue);
                String result = SystemUtil.getSearchEngineHttpAddress();

        List<String> testValue = null;
        OptionalEntity<List<String>> result = OptionalUtil.ofNullable(testValue);

        assertNotNull(result);
        assertFalse(result.isPresent());
    }

    @Test
    public void test_ofNullable_withMap() {
        Map<String, Object> testValue = new HashMap<>();
        testValue.put("key1", "value1");
        testValue.put("key2", 42);

    @Test
    public void test_getTimeAdjustTimeMillis_stringValues() {
        // Test various string formats
        String[] testValues = { "0", "1000", "-1000", "999999999", "-999999999", "1", "-1" };

        for (String value : testValues) {
            FessConfig testConfig = new FessConfig.SimpleImpl() {
                private static final long serialVersionUID = 1L;

                @Override

        try {
            WebApiUtil.setObject("testKey", "testValue");
        } catch (Exception e) {
            fail("setObject should handle missing request gracefully: " + e.getMessage());
        }
    }

    @Test
    public void test_setObject_withNullName() {
        // Test setObject with null name
        try {
            WebApiUtil.setObject(null, "testValue");
        } catch (Exception e) {

    }

    @Test
    public void test_encode_decode_symmetry() {
        String[] testValues =
                { "guest", "{user}guest", "{group}guest", "{role}guest", "(deny){user}guest", "(deny){group}guest", "(deny){role}guest" };

        for (String value : testValues) {
            String encoded = permissionHelper.encode(value);
            if (encoded != null) {

        assertEquals(3, keySet.size());
        assertTrue(keySet.contains("key1"));
        assertTrue(keySet.contains("key2"));
        assertTrue(keySet.contains("key3"));
    }

    @Test
    public void test_values() {
        Map<String, Object> parentMap = new HashMap<>();
        DocMap docMap = new DocMap(parentMap);

        docMap.put("key1", "value1");
        docMap.put("key2", "value2");