private int position;

  /** Returns the element with the specified index. This method is called by {@link #next()}. */
  @ParametricNullness
  protected abstract E get(int index);

  /**
   * Constructs an iterator across a sequence of the given size whose initial position is 0. That
   * is, the first call to {@link #next()} will return the first element (or throw {@link
   * NoSuchElementException} if {@code size} is zero).
   *

    private KerberosApRequest apRequest;

    /**
     * Constructs a KerberosToken from token bytes.
     *
     * @param token the token bytes
     * @throws PACDecodingException if token decoding fails
     */
    public KerberosToken(byte[] token) throws PACDecodingException {
        this(token, null);
    }

    /**
     * Constructs a KerberosToken from token bytes with decryption keys.
     *

    /**
     * The collection of problems associated with this exception.
     */
    private final ProblemCollector<BuilderProblem> problems;

    /**
     * Constructs a new exception with the specified message and cause.
     * This constructor creates an empty problem collector.
     *
     * @param message the detail message
     * @param cause the cause of this exception
     */

    /**
     * Constructs a new JobNotFoundException with a message derived from the scheduled job.
     *
     * @param scheduledJob the scheduled job that was not found
     */
    public JobNotFoundException(final ScheduledJob scheduledJob) {
        super(scheduledJob.toString());
    }

    /**
     * Constructs a new JobNotFoundException with the specified detail message.
     *

    private static final long serialVersionUID = 1L;

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

    /**
     * Constructs a new SSO message exception with message code, detailed message, and cause.
     *
     * @param messageCode The message code for internationalized error display
     * @param message The detailed error message

        super(getMessageByDcerpcError(error));
        this.error = error;
    }

    /**
     * Constructs a DcerpcException with the specified message
     *
     * @param msg
     *            the error message
     */
    public DcerpcException(final String msg) {
        super(msg);
    }

    /**
     * Constructs a DcerpcException with the specified message and root cause
     *
     * @param msg

            final ASN1TaggedObject constructed = (ASN1TaggedObject) is.readObject();
            if (constructed == null || constructed.getTagClass() != BERTags.APPLICATION
                    || !(constructed.getBaseObject() instanceof ASN1Sequence)) {
                throw new IOException("Malformed SPNEGO token " + constructed);
            }

    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new SsoLoginException with the specified detail message.
     *
     * @param message The detail message explaining the SSO login failure
     */
    public SsoLoginException(final String message) {
        super(message);
    }

    /**
     * Constructs a new SsoLoginException with the specified detail message and cause.
     *

        /**
         * Constructs a new PathSource with the specified path.
         *
         * @param path the filesystem path to the source content
         * @throws NullPointerException if path is null
         */
        PathSource(Path path) {
            this(path, null);
        }

        /**
         * Constructs a new PathSource with the specified path and location.
         *

         */
        public int totalentries;
        /**
         * The resume handle for enumeration.
         */
        public int resume_handle;

        /**
         * Constructs a ShareEnumAll request.
         * @param servername the server name
         * @param level the information level
         * @param info the information container
         * @param prefmaxlen the preferred maximum length