- **I/O Operations** (`org.codelibs.core.io`) - File handling, resource management, stream utilities, and traversal utilities for efficient resource processing
- **Reflection** (`org.codelibs.core.lang`) - Class loading, method/field access, type introspection utilities, and generics support
- **Exception Handling** (`org.codelibs.core.exception`) - Runtime exception wrappers for common checked exceptions with consistent error handling

### Modern Java 21 Support

            boolQuery.minimumShouldMatch(minimumShouldMatch);
        }
        return new DefaultQueryBuilder(boolQuery);
    }

    /**
     * Builds a match phrase query, with special handling for single CJK characters.
     * For single CJK characters in title or content fields, uses prefix query instead.
     * @param f The field name.
     * @param text The text to search for.

   */
  @Deprecated
  public LinearTransformation() {}

  /**
   * Start building an instance which maps {@code x = x1} to {@code y = y1}. Both arguments must be
   * finite. Call either {@link LinearTransformationBuilder#and} or {@link
   * LinearTransformationBuilder#withSlope} on the returned object to finish building the instance.
   */
  public static LinearTransformationBuilder mapping(double x1, double y1) {

import org.lastaflute.web.response.StreamResponse;

import jakarta.annotation.Resource;

/**
 * Action class for handling document redirection requests.
 * This action processes "go" requests that redirect users to specific documents
 * while tracking click events and handling various URL types including file system paths.
 */
public class GoAction extends FessSearchAction {

    /**

/**
 * Abstract base class for Fess API actions that provides common functionality
 * for API endpoints including authentication, message handling, and access control.
 *
 * This class extends FessBaseAction and provides specialized behavior for API requests,
 * including token-based authentication and JSON response handling.
 */
public abstract class FessApiAction extends FessBaseAction {

    /**
     * Default constructor.
     */

        assertNotNull(result);
        assertTrue(result.contains("3 docs"));
        // queryBuilder field is protected, so we can't directly assert it
    }

    // Test execute() method with exception handling
    public void test_execute_withException() {
        // Register a mock that throws exception
        SearchEngineClient exceptionClient = new SearchEngineClient() {
            @Override

    this.backingThreadFactory = checkNotNull(backingThreadFactory);
    return this;
  }

  /**
   * Returns a new thread factory using the options supplied during the building process. After
   * building, it is still possible to change the options used to build the ThreadFactory and/or
   * build again. State is not shared amongst built instances.
   *

        assertNotNull(result);
        assertTrue(result instanceof TestUser);
        assertEquals("TestUser", ((TestUser) result).name);
    }

    // Test evaluate method with error handling
    public void test_evaluate_withErrorTemplate() {
        scriptEngine = new ErrorHandlingScriptEngine();
        String template = "error";
        Map<String, Object> paramMap = new HashMap<>();

 */
public class ApiAdminDictAction extends FessApiAdminAction {

    /**
     * Default constructor.
     */
    public ApiAdminDictAction() {
        super();
    }

    /** Dictionary manager for handling dictionary file operations */
    @Resource
    protected DictionaryManager dictionaryManager;

    /**
     * Retrieves all available dictionary files.
     *

     *   <li>Error handling and failure logging</li>
     *   <li>Cleanup of old documents after successful crawling</li>
     * </ul>
     */
    protected static class DataCrawlingThread extends Thread {

        /** Configuration for the data store being crawled */
        private final DataConfig dataConfig;

        /** Callback for handling document indexing operations */