assertTrue(causeStackTrace.length > 0);

        // Stack traces should be different
        assertNotSame(mainStackTrace, causeStackTrace);
    }

    /**
     * Test printStackTrace functionality
     */
    public void test_printStackTrace() {
        CrawlerSystemException exception = new CrawlerSystemException("Print stack trace test");

        StringWriter stringWriter = new StringWriter();

    }

    /**
     * Constructs a new CrawlerSystemException with the specified detail message and controls suppression and stack trace writing.
     *
     * @param message the detail message
     * @param enableSuppression whether or not suppression is enabled
     * @param writableStackTrace whether or not the stack trace should be writable
     */

        NameTrackingTransformer tracker = new NameTrackingTransformer();
        ResponseData responseData = new ResponseData();

        // Transform with different names
        tracker.setName("name1");
        tracker.transform(responseData);

        tracker.setName("name2");
        tracker.transform(responseData);

        tracker.setName("name3");
        tracker.transform(responseData);

 * This exception holds an array of Throwable objects representing the individual causes.
 * It extends CrawlingAccessException and provides methods to print the stack traces of all causes.
 *
 */
public class MultipleCrawlingAccessException extends CrawlingAccessException {

    private static final long serialVersionUID = 1L;

    /**

 * The class provides methods to interrupt the thread and stop the timeout target.
 *
 * <p>
 * The class uses a logger to log debug messages.
 * It also uses an AtomicBoolean to track whether the thread is running.
 * </p>
 *
 * <p>
 * The expired method is called when a timeout occurs.
 * It interrupts the running thread up to a maximum number of times.

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * The SuggestWriterResult class is used to store and manage the results of a suggest writer operation.
 * It keeps track of any failures that occur during the operation.
 */
public class SuggestWriterResult {
    /**
     * Constructs a new {@link SuggestWriterResult}.
     */
    public SuggestWriterResult() {
        // nothing

                        final String msg = buf.toString(Constants.UTF_8);
                        if (StringUtil.isNotBlank(msg)) {
                            if (logger.isTraceEnabled()) {
                                logger.trace(msg);
                            } else if (logger.isDebugEnabled()) {
                                logger.debug(msg);
                            } else if (logger.isWarnEnabled()) {

## Key Features

- **Smart Query Suggestions**: Real-time auto-completion and search suggestions
- **Multi-language Support**: Built-in support for Japanese text processing with Kuromoji analyzer
- **Popular Words Analytics**: Track and analyze frequently searched terms
- **Flexible Text Processing**: Configurable converters and normalizers for text transformation
- **OpenSearch Integration**: Seamless integration with OpenSearch/Elasticsearch clusters

    protected String charset = Constants.UTF_8;

    /** Helper for managing content length limits */
    @Resource
    protected ContentLengthHelper contentLengthHelper;

    /** Flag to track initialization status */
    protected AtomicBoolean isInit = new AtomicBoolean(false);

    /**
     * Constructs a new FileSystemClient.
     */
    public FileSystemClient() {
        // Default constructor

    /**
     * Test rule processor chain behavior
     */
    public void test_ruleProcessorChain() {
        final List<String> executionOrder = new ArrayList<>();

        // Create custom processor that tracks execution
        ResponseProcessor processor = new ResponseProcessor() {
            @Override
            public void process(ResponseData responseData) {
                executionOrder.add("processor_executed");