// Test with StackOverflowError as cause
        String message = "Thumbnail generation failed";
        StackOverflowError error = new StackOverflowError("Stack overflow during processing");
        ThumbnailGenerationException exception = new ThumbnailGenerationException(message, error);

        assertEquals(message, exception.getMessage());
        assertNotNull(exception.getCause());

    @Test
    public void test_hook_normalExecution() {
        // Create a mock FwAssistantDirector
        FwAssistantDirector assistantDirector = createMockAssistantDirector();

        // Should not throw any exception during normal execution
        curtainFinallyHook.hook(assistantDirector);

        // Verify that the method completes without errors
        assertTrue(true); // Method completed successfully
    }

 * This class provides functionality to load, parse, and manage character mapping
 * rules that define how input characters should be transformed to output characters
 * during text analysis and search processing.
 *
 * Character mapping files contain mapping rules in the format:
 * input1,input2,... => output
 */
public class CharMappingFile extends DictionaryFile<CharMappingItem> {

     * @return the redirect URL if a redirect occurred, null otherwise
     * @throws ChildUrlsException if child URLs are discovered during processing
     * @throws DataStoreCrawlingException if an error occurs during crawling
     */
    protected String processRequest(final DataStoreParams paramMap, final Map<String, Object> dataMap, final String url,
            final CrawlerClient client) {

    public void test_constructorWithThrowableCause_OutOfMemoryErrorWithAbort() {
        // Test Error with abort flag
        String url = "http://example.com/critical-resource";
        String message = "Critical memory error during crawling";
        OutOfMemoryError error = new OutOfMemoryError("Cannot allocate memory");

        DataStoreCrawlingException exception = new DataStoreCrawlingException(url, message, error, true);

    void onPhaseComplete(String phase);

    /**
     * Called when a chunk of the response is available during streaming.
     *
     * @param content the content chunk
     * @param done true if this is the final chunk
     */
    void onChunk(String content, boolean done);

    /**
     * Called when an error occurs during processing.
     *
     * @param phase the phase where the error occurred

    /** Queue to track the current XML element hierarchy during parsing. */
    protected LinkedList<String> tagQueue;

    /** List to store parsed label types for access control. */
    protected List<LabelType> labelList;

    /** Current label type being processed during parsing. */
    protected LabelType labelType;

    /** Map to store global configuration parameters. */

                throw new RuntimeException("IO error occurred during delete operation");
            }
        };
        ComponentUtil.register(searchEngineClient, "searchEngineClient");

        // Execute the job
        String result = purgeDocJob.execute();

        // Assert error message is in the result
        assertTrue(result.contains("IO error occurred during delete operation"));
    }

    @Test

    /**
     * Performs a chat completion request.
     *
     * @param request the chat request containing messages and parameters
     * @return the chat response from the LLM
     * @throws LlmException if an error occurs during the request
     */
    LlmChatResponse chat(LlmChatRequest request);

    /**
     * Performs a streaming chat completion request.
     * The callback is invoked for each chunk of the response.
     *

     *
     * @param chunk the text chunk from the LLM response
     * @param done true if this is the final chunk
     */
    void onChunk(String chunk, boolean done);

    /**
     * Called when an error occurs during streaming.
     *
     * @param error the error that occurred
     */
    default void onError(final Throwable error) {
        // Default implementation does nothing
    }