Properties props = new Properties();
                props.setProperty("bool.true", "true");
                props.setProperty("bool.false", "false");
                props.setProperty("bool.yes", "yes");
                props.setProperty("bool.no", "no");
                props.setProperty("bool.on", "on");
                props.setProperty("bool.off", "off");

        options.sessionId = "test-session";
        options.name = "test-name";
        options.propertiesPath = "/path/to/props";
        options.numOfThreads = 5;

        String expected = "Options [sessionId=test-session, name=test-name, propertiesPath=/path/to/props, numOfThreads=5]";
        assertEquals(expected, options.toString());
    }

    @Test
    public void test_initializeProbes() {

        options.sessionId = "test-session";
        options.name = "test-name";
        options.propertiesPath = "/path/to/props";

        String expected = "Options [sessionId=test-session, name=test-name, propertiesPath=/path/to/props]";
        assertEquals(expected, options.toString());
    }

    // Test initializeProbes
    @Test
    public void test_initializeProbes() {
        try {

                propField.setAccessible(true);

                // Create a mock JavaPropertiesResult
                java.util.Properties props = new java.util.Properties();
                props.setProperty("job.max.crawler.processes", "5");
                props.setProperty("java.command.path", "java");

                org.dbflute.helper.jprop.JavaPropertiesReader reader =

        options.name = "testCrawl";
        options.webConfigIds = "web1,web2";
        options.fileConfigIds = "file1";
        options.dataConfigIds = "data1";
        options.propertiesPath = "/path/to/props";
        options.expires = "7";
        options.hotThread = 5000;

        String result = options.toString();
        assertNotNull(result);
        assertTrue(result.contains("sessionId=session123"));

        assertTrue(cmdList.contains("-D" + Constants.SYSTEM_PROP_PREFIX + "prop1=value1"));
        assertTrue(cmdList.contains("-D" + Constants.SYSTEM_PROP_PREFIX + "prop2=value2"));

        // Clean up
        System.clearProperty(Constants.SYSTEM_PROP_PREFIX + "prop1");
        System.clearProperty(Constants.SYSTEM_PROP_PREFIX + "prop2");
        System.clearProperty("regular.property");
    }

    }

    // Test method chaining
    @Test
    public void test_methodChaining() {
        String property1 = "prop1";
        String property2 = "prop2";
        String property3 = "prop3";

        FessMessages result =
                messages.addErrorsFrontHeader(property1).addConstraintsNotNullMessage(property2).addSuccessStartCrawlProcess(property3);

            private static final long serialVersionUID = 1L;

            {
                // Force initialize the ObjectiveConfig's prop field using reflection
                try {
                    java.lang.reflect.Field propField = org.lastaflute.core.direction.ObjectiveConfig.class.getDeclaredField("prop");
                    propField.setAccessible(true);

        final FessMessages messages1 = new FessMessages();
        messages1.addErrorsOperationAlreadyRunning("prop", "host1");
        assertFalse(messages1.isEmpty());

        final FessMessages messages2 = new FessMessages();
        messages2.addErrorsOperationAlreadyRunning("prop", "node1@host2");
        assertFalse(messages2.isEmpty());
    }

        if (fessConfig instanceof SimpleImpl) {
            final Properties prop = new Properties();
            ((SimpleImpl) fessConfig).keySet().stream().forEach(k -> prop.setProperty(k, fessConfig.get(k)));

            final ZipEntry entry = new ZipEntry(id + "/fess_config.properties");
            try {
                zos.putNextEntry(entry);
                prop.store(zos, getHostInfo());
            } catch (final IOException e) {