return exception;
    }

    @Override
    public String getMessage() {
        String msg = null;

        if (message != null && !message.isEmpty()) {
            msg = message;
        } else if (exception != null) {
            msg = exception.getMessage();
        }

        if (msg == null) {
            msg = "";
        }

        return msg;
    }

    @Override

        if (!matcher.matches()) {
            return null;
        }

        String className = null;
        if (matcher.group(1).length() > 0) {
            className = typeNameResolver.resolve(matcher.group(1), classMetaData);
            if (className == null) {
                return null;
            }
        }
        if (matcher.group(2) == null) {

    protected CrawlerClientFactory crawlerClientFactory = null;

    public FileConfig() {
        setBoost(1.0f);
    }

    @Override
    public String getDocumentBoost() {
        return getBoost().toString();
    }

    @Override
    public String getIndexingTarget(final String input) {
        if (includedDocPathPatterns == null || excludedDocPathPatterns == null) {
            initDocPathPattern();
        }

    /**
     * Creates an artifact.
     *
     * @param request the request holding artifact creation parameters
     * @return an {@code Artifact}, never {@code null}
     * @throws IllegalArgumentException if {@code request} is null or {@code request.session} is null or invalid
     */
    @Nonnull
    Artifact create(@Nonnull ArtifactFactoryRequest request);

    @Nonnull
    default Artifact create(

                        state = 0;
                        thread = null;
                        throw new TransportException( "Connection timeout" );
                    case 2:
                        if (te != null) { /* doConnect throw Exception */
                            state = 4;                        /* error */
                            thread = null;
                            throw te;
                        }

        id = null;
        name = null;
        urls = null;
        userAgent = null;
        numOfThread = null;
        intervalTime = null;
        boost = null;
        available = null;
        sortOrder = null;
        createdBy = null;
        createdTime = null;
        versionNo = null;
        description = null;

    }

      int size = (keyList == null) ? 0 : keyList.count;
      checkPositionIndex(index, size);
      if (index >= (size / 2)) {
        previous = (keyList == null) ? null : keyList.tail;
        nextIndex = size;
        while (index++ < size) {
          previous();
        }
      } else {
        next = (keyList == null) ? null : keyList.head;
        while (index-- > 0) {
          next();

                break;
            }
        }
        if (authMethod == null) return null;
        NtlmMessage message = (authorization != null) ?
                new Type2Message(Base64.decode(authorization)) : null;
        reconnect();
        if (message == null) {
            message = new Type1Message();
            if (LM_COMPATIBILITY > 2) {

        Objects.requireNonNull(file, "file cannot be null");
        return read(file.toPath(), options);
    }

    @Override
    public org.apache.maven.model.Model read(Path path, Map<String, ?> options) throws IOException {
        Objects.requireNonNull(path, "path cannot be null");
        org.apache.maven.api.model.Model model = read(path, null, null, options);
        return new org.apache.maven.model.Model(model);

    private static final Logger logger = Logger.getLogger(StatementUtil.class);

    /**
     * SQLを実行します。
     *
     * @param statement
     *            {@link Statement}。{@literal null}であってはいけません
     * @param sql
     *            SQL文字列。{@literal null}や空文字列であってはいけません
     * @return 実行した結果
     * @see Statement#execute(String)
     */
    public static boolean execute(final Statement statement, final String sql) {