//                                                                          ==========
    @SuppressWarnings("unchecked")
    /**
     * Creates a validator instance for form validation.
     * This method uses the system helper to create a validator with Fess-specific messages.
     *
     * @return a new action validator instance
     */
    @Override
    public ActionValidator<FessMessages> createValidator() {

import org.codelibs.fess.util.InputStreamThread;

import jakarta.annotation.PostConstruct;

/**
 * Command-based thumbnail generator that executes external commands to create thumbnails.
 * Uses external tools through command execution to generate thumbnail images from documents.
 */
public class CommandGenerator extends BaseThumbnailGenerator {

        assertTrue(item1.equals(item2));
    }

    @Test
    public void test_equals_withNullOutput() {
        // Test equals with null output - should not throw, uses null-safe comparison
        String[] inputs1 = { "a", "b" };
        String[] inputs2 = { "a", "b" };
        String[] inputs3 = { "c", "d" };

        CharMappingItem item1 = new CharMappingItem(1L, inputs1, null);

 * This class provides functionality to track, record, and report statistics
 * about crawler operations including timing data, performance metrics, and
 * operational events. It uses an internal cache to maintain statistics
 * objects and provides methods to begin tracking, record events, and
 * finalize statistics collection.
 *
 */
public class CrawlerStatsHelper {

    /**

            super.storeChildUrl(url, parentUrl, weight, depth);
        }
    }

    /**
     * Retrieves the appropriate crawler client for the given URL based on configured rules.
     * This method uses client rules to determine which specific client implementation
     * should be used for crawling the URL, falling back to the default client if no
     * specific rule matches.
     *

        return query -> filter.parse(query, chain);
    }

    /**
     * Creates the default filter chain that performs the actual query parsing.
     * This chain uses the Lucene query parser to parse the query string.
     *
     * @return the default filter chain
     */
    protected FilterChain createDefaultFilterChain() {
        return query -> {
            try {

 * This class provides support for executing Groovy scripts with parameter binding
 * and DI container integration.
 *
 * <p>Thread Safety: This class is thread-safe. Each cached entry holds its own
 * GroovyClassLoader. The cache uses Guava Cache with segment-based locking for
 * lock-free concurrent reads. Each evaluate() call creates a new Script instance
 * to ensure thread isolation of bindings.</p>
 *

        }
    }

    /**
     * Processes a streaming chat request using Server-Sent Events (SSE).
     * Uses the enhanced multi-phase RAG flow with intent detection and result evaluation.
     *
     * @param request the HTTP request
     * @param response the HTTP response
     * @throws IOException if an I/O error occurs

        assertNotNull(roleList, "roleList should not be null");
        assertNotNull(groupIdsForParentLookup, "groupIdsForParentLookup should not be null");
    }

    /**
     * Test that scheduleParentGroupLookup uses TimeoutManager correctly.
     * This test verifies the method signature and can be called via reflection.
     */
    @Test
    public void test_scheduleParentGroupLookup_schedulesTask() throws Exception {

 * operations in the search engine. It supports recursive crawling with configurable depth and access count limits.
 *
 * <p>The implementation uses an executor service for concurrent processing of file operations and maintains
 * a cache of URLs to be deleted for batch processing. It handles redirect following and child URL discovery
 * during the crawling process.</p>
 */