*/
    private final String className;

    /**
     * Creates a {@link ClassNotFoundRuntimeException}.
     *
     * @param cause the underlying exception
     */
    public ClassNotFoundRuntimeException(final ClassNotFoundException cause) {
        this(null, cause);
    }

    /**
     * Creates a {@link ClassNotFoundRuntimeException}.
     *
     * @param className the class name

        return previousClusterState.getAndSet(status) != status;
    }

    /**
     * Creates a new action validator.
     *
     * @param requestManager  The request manager.
     * @param messagesCreator The messages creator.
     * @param runtimeGroups   The runtime groups.
     * @return A new action validator.
     */

    private static final long serialVersionUID = 1L;

    /** Message code for localized error messages */
    private final transient VaMessenger<FessMessages> messageCode;

    /**
     * Creates a new InvalidQueryException with message code, message, and cause.
     *
     * @param messageCode the message code for localized error messages
     * @param message the detailed error message

    private long heartbeatInterval;

    /**
     * Creates a new WitnessHeartbeat RPC message.
     */
    public WitnessHeartbeatMessage() {
        super(WITNESS_HEARTBEAT);
        this.contextHandle = new byte[20];
        this.sequenceNumber = 0;
        this.responseSequenceNumber = 0;
        this.heartbeatInterval = 0;
    }

    /**
     * Creates a new WitnessHeartbeat RPC message with the specified parameters.

     *         or {@code null} if this source has no associated file
     */
    @Nullable
    Path getPath();

    /**
     * Creates a new input stream to read the source contents.
     * Each call creates a fresh stream starting from the beginning.
     * The caller is responsible for closing the returned stream.
     *
     * @return a new input stream positioned at the start of the content

    /**
     * Creates a new settings source backed by the specified string.
     *
     * @param settings The settings' string representation, may be empty or {@code null}.
     */
    public StringSettingsSource(CharSequence settings) {
        this(settings, null);
    }

    /**
     * Creates a new settings source backed by the specified string.
     *

 */
@GwtCompatible
public abstract class AbstractSequentialIterator<T> extends UnmodifiableIterator<T> {
  private @Nullable T nextOrNull;

  /**
   * Creates a new iterator with the given first element, or, if {@code firstOrNull} is null,
   * creates a new empty iterator.
   */
  protected AbstractSequentialIterator(@Nullable T firstOrNull) {
    this.nextOrNull = firstOrNull;
  }

  /**

    }

    // -----------------------------------------------------
    //                                         Actually Crud
    //                                         -------------
    /**
     * Creates a new role item.
     *
     * @param form the create form containing the new item data
     * @return HTML response redirecting to the list page after creation
     */
    @Execute
    @Secured({ ROLE })

    protected final Iterator<T> iterator;

    /**
     * Creates an {@link IteratorEnumeration}.
     *
     * @param iterator the iterator (must not be {@literal null})
     */
    public IteratorEnumeration(final Iterator<T> iterator) {
        assertArgumentNotNull("iterator", iterator);
        this.iterator = iterator;
    }

    /**
     * Creates an {@link IteratorEnumeration}.
     *

    protected final String argName;

    /** Message code */
    protected final String messageCode;

    /** Arguments for the message */
    protected final Object[] args;

    /**
     * Creates a {@link ClIllegalArgumentException}.
     *
     * @param argName
     *            Name of the argument
     * @param messageCode
     *            Message code
     * @param args