assertTrue("Exception message should mention unregistered class: " + message,
                    message != null && (message.contains("not registered") || message.contains("Class is not registered")
                            || message.contains("unregistered")));
        }
    }

    /**
     * Test that all registered types work correctly.
     * This ensures our registration covers the common use cases.

            return OptionalThing.empty();
        }
    }

    /**
     * Unregisters a scheduled job from the job manager.
     *
     * @param scheduledJob the scheduled job to unregister
     * @throws ScheduledJobException if the job cannot be unregistered
     */
    public void unregister(final ScheduledJob scheduledJob) {
        try {

 */
public class IngestFactory {
    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(IngestFactory.class);

    /** Array of registered ingesters, sorted by priority */
    private Ingester[] ingesters = {};

    /**
     * Default constructor.
     */
    public IngestFactory() {
        // Default constructor
    }

    /**

 * It manages registered SSO authenticators, determines when SSO is available,
 * and delegates authentication operations to the appropriate SSO provider based
 * on the current configuration.
 */
public class SsoManager {
    /** Logger for this class. */
    private static final Logger logger = LogManager.getLogger(SsoManager.class);

    /** List of registered SSO authenticators. */

        testScriptEngine.register();

        // Verify that the engine was registered with the factory
        ScriptEngine retrievedEngine = scriptEngineFactory.getScriptEngine("testEngine");
        assertNotNull(retrievedEngine);
        assertEquals(testScriptEngine, retrievedEngine);

        // Verify that the engine was also registered with its class name

                startLatch.countDown(); // Start all threads simultaneously
                assertTrue("Concurrent registration timed out", endLatch.await(10, TimeUnit.SECONDS));

                // Verify all searchers were registered (1 initial + numThreads * searchersPerThread)
                assertEquals(numThreads * searchersPerThread, registeredCount.get());

            } finally {
                executor.shutdown();

    /**
     * The filter chain that processes queries through all registered filters
     * before executing the appropriate query command.
     */
    protected FilterChain filterChain;

    /**
     * Initializes the query processor after construction.
     * This method creates the initial filter chain from the registered filters.
     * Called automatically by the DI container after bean construction.
     */

        RenderDataUtil.register(data, "empty", emptyList);

        Object result = data.getDataMap().get("empty");
        assertEquals(emptyList, result); // Empty collections are registered as-is
    }

    @Test
    public void test_register_nonEntityList() {
        RenderData data = new RenderData();
        List<String> stringList = Arrays.asList("item1", "item2", "item3");

 *
 * This class serves as the central coordinator for LLM operations in Fess.
 * It manages registered LLM clients and provides access to the configured
 * LLM provider based on the current configuration.
 */
public class LlmClientManager {

    private static final Logger logger = LogManager.getLogger(LlmClientManager.class);

    /** The list of registered LLM clients. */
    protected final List<LlmClient> clientList = new CopyOnWriteArrayList<>();

     * Only explicitly registered classes can be serialized/deserialized.
     * </p>
     */
    public DataSerializer() {
        kryoThreadLocal = ThreadLocal.withInitial(() -> {
            final Kryo kryo = new Kryo();
            // Enable registration requirement for security - only registered classes can be deserialized
            kryo.setRegistrationRequired(true);