*/
package org.codelibs.fess.crawler.util;

/**
 * Utility class for character-related operations.
 */
public final class CharUtil {
    /**
     * Private constructor to prevent instantiation of this utility class.
     */
    private CharUtil() {
    }

    /**
     * Checks if the given character is a valid URL character.
     *
     * Valid URL characters include:

import org.codelibs.fess.crawler.exception.CrawlingAccessException;

/**
 * Utility class for handling response data.
 */
public final class ResponseDataUtil {

    /**
     * Private constructor to prevent instantiation of this utility class.
     */
    private ResponseDataUtil() {
    }

    /**
     * Creates a temporary file containing the response body from the given ResponseData.
     *

 */
public class ThreadDumpUtil {
    private static final Logger logger = LogManager.getLogger(ThreadDumpUtil.class);

    /**
     * Private constructor to prevent instantiation of this utility class.
     */
    protected ThreadDumpUtil() {
        // noop
    }

    /**
     * Prints thread dump information to the logger at INFO level.
     */

     */
    public static final File tmpDir = new File(System.getProperty("java.io.tmpdir"));

    /**
     * Protected constructor to prevent direct instantiation but allow inheritance.
     */
    protected Curl() {
        // nothing
    }

    /**
     * Creates a new CurlRequest with the HTTP GET method for the specified URL.
     *

 * This class provides methods to properly format IPv6 addresses for use in URLs
 * by adding brackets where necessary.
 */
public final class IpAddressUtil {

    /**
     * Private constructor to prevent instantiation of utility class.
     */
    private IpAddressUtil() {
        // Utility class - no instances allowed
    }

    /**
     * Determines if the given address string represents an IPv6 address.

                    }
                    return 0L;
                }
            });

    /**
     * Private constructor to prevent instantiation of this utility class.
     * This class is intended to be used only through its static methods.
     */
    protected FessFunctions() {
        // nothing
    }

    /**

    public void setUp() {
        // Setup for each test
    }

    @Test
    public void testPrivateConstructor() throws Exception {
        // Test that SuggestUtil has a private constructor to prevent instantiation
        Constructor<SuggestUtil> constructor = SuggestUtil.class.getDeclaredConstructor();
        assertTrue(Modifier.isPrivate(constructor.getModifiers()));

        // Make it accessible to test it throws no exception

 * </ul>
 */
public class Constants extends CoreLibConstants {

    /**
     * Private constructor to prevent instantiation of this utility class.
     * This class contains only static constants and should not be instantiated.
     */
    private Constants() {
        // Utility class - no instantiation
    }

    // ============================================================
    // System and UI Constants

    private static final Base64.Encoder encoder = Base64.getEncoder();

    private static final int ID_MAX_LENGTH = 445;

    /**
     * Private constructor to prevent instantiation.
     */
    private SuggestUtil() {
    }

    /**
     * Creates a unique identifier for the given text by encoding it to a Base64 string.

        public Integer hotThread;

        /**
         * Default constructor for Options.
         * Protected to allow subclassing while preventing direct instantiation.
         */
        protected Options() {
            // nothing
        }

        /**
         * Parses the web configuration IDs string into a list.
         *