*/
public class FessSystemException extends RuntimeException {

    /** Serial version UID for serialization compatibility */
    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new FessSystemException with the specified detail message and cause.
     *
     * @param message the detail message describing the exception

  }

  @Override
  public String toString() {
    return "Ordering.compound(" + Arrays.toString(comparators) + ")";
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

    return 0x598df91c + reference.hashCode();
  }

  @Override
  public String toString() {
    return "Optional.of(" + reference + ")";
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

 *
 * @author koichik
 * @param <K> the key type
 * @param <V> the value type
 */
public class LruHashMap<K, V> extends LinkedHashMap<K, V> {

    private static final long serialVersionUID = 1L;

    /**
     * Default initial capacity.
     */
    protected static final int DEFAULT_INITIAL_CAPACITY = 16;

    /**
     * Default load factor.
     */

    }

    public void test_serialization() {
        // Test that the exception has serialVersionUID defined
        String message = "Serialization test";
        SearchEngineClientException exception = new SearchEngineClientException(message);

        // Verify the exception can be created (serialVersionUID is defined in the class)
        assertNotNull(exception);

 * can be used by the UI layer to display appropriate error messages to users.
 */
public class SsoMessageException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /** The message code for internationalized error messages. */
    private final transient VaMessenger<FessMessages> messageCode;

    /**

   * {@link RemovalCause#EXPLICIT} nor {@link RemovalCause#REPLACED}).
   */
  public boolean wasEvicted() {
    return cause.wasEvicted();
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

        }
    }

    // Test implementation of FessUser interface
    private static class TestFessUser implements FessUser {
        private static final long serialVersionUID = 1L;
        private final String name;
        private final String[] roleNames;
        private final String[] groupNames;
        private final String[] permissions;

 * has exceeded its lifetime and should be refreshed or reloaded.
 */
public class DictionaryExpiredException extends RuntimeException {

    /** Serial version UID for serialization. */
    private static final long serialVersionUID = 1L;

    /**
     * Creates a new instance of DictionaryExpiredException.
     * This constructor initializes the exception to indicate that a dictionary
     * has expired and is no longer valid for use.
     */

 * Typically used when a document or resource is not available during crawling or indexing.
 */
public class ContentNotFoundException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new ContentNotFoundException with the specified parent URL and URL.
     *
     * @param parentUrl the URL of the parent document