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

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

        assertNotNull(result);
        assertSame(messages, result);

     *
     * Property {@code jcifs.smb.client.domain}
     *
     * @return default credentials, domain name
     */
    String getDefaultDomain();

    /**
     *
     * Property {@code jcifs.smb.client.username}
     *
     * @return default credentials, user name
     */
    String getDefaultUsername();

    /**
     *
     * Property {@code jcifs.smb.client.password}
     *

    /**
     * Get the value of property as {@link String}.
     * @param propertyKey The key of the property. (NotNull)
     * @return The value of found property. (NotNull: if not found, exception)
     * @throws ConfigPropertyNotFoundException When the property is not found.
     */
    String get(String propertyKey);

    /**
     * Is the property true?

     */

    public static void list(final PrintStream out) throws IOException {
        prp.list(out);
    }

    /**
     * Add a property.
     *
     * @param key the property key
     * @param value the property value
     * @return the previous value of the property, or null if it did not have one
     */

    public static Object setProperty(final String key, final String value) {

        }
    }

    @Nested
    @DisplayName("Property Access Tests")
    class PropertyAccessTests {

        @BeforeEach
        void setup() {
            testBlock = new TestServerMessageBlock(mockConfig);
        }

        @Test
        @DisplayName("Test command property")
        void testCommandProperty() {
            testBlock.setCommand(0x42);

    }

    // Test system property override
    public void test_get_systemPropertyOverride() {
        // Set system property that should override config
        String testKey = "test.property";
        String systemValue = "system-value";
        System.setProperty(Constants.FESS_CONFIG_PREFIX + testKey, systemValue);

        try {
            // Test that system property takes precedence

    @Test
    @DisplayName("Should get integer property with default value")
    void testGetIntWithDefault() {
        assertEquals(123, Config.getInt(testProperties, "test.int", 0));
        assertEquals(456, Config.getInt(testProperties, "nonexistent.int", 456));
        assertEquals(789, Config.getInt(testProperties, "test.invalid.int", 789));
    }

    @Test
    @DisplayName("Should get integer property")
    void testGetInt() {

    protected CopyOptionsUtil() {
    }

    /**
     * Returns a {@link CopyOptions} with the specified property names to include in the operation.
     *
     * @param propertyNames
     *            An array of property names. Must not be {@literal null} or an empty array.
     * @return A {@link CopyOptions} with the specified property names to include in the operation.
     * @see CopyOptions#include(CharSequence...)
     */

    // Web API Property Keys
    // ============================================================

    /** Property key for JSON web API configuration. */
    public static final String WEB_API_JSON_PROPERTY = "web.api.json";

    /** Property key for suggest web API configuration. */
    public static final String WEB_API_SUGGEST_PROPERTY = "web.api.suggest";

    /** Property key for GSA web API configuration. */

        // Then
        assertEquals(appendedReferral, initialReferral.next,
                "The 'next' property of the initial referral should point to the appended referral.");
        assertEquals(initialReferral, appendedReferral.next,
                "The 'next' property of the appended referral should point back to the initial referral, closing the loop.");
    }

    /**