assertEquals(DEFAULT_MAX_LENGTH, contentLengthHelper.getMaxLength(mimeType));
        contentLengthHelper.addMaxLength(mimeType, 1000L);
        assertEquals(1000L, contentLengthHelper.getMaxLength(mimeType));
    }

    public void test_getMaxLength_blank() {
        String mimeType;

        mimeType = null;
        assertEquals(DEFAULT_MAX_LENGTH, contentLengthHelper.getMaxLength(mimeType));

        mimeType = "";

        }
        if (maxLength < 0) {
            throw new CrawlerSystemException("The value of maxLength is invalid.");
        }
        maxLengthMap.put(mimeType, maxLength);
    }

    public long getMaxLength(final String mimeType) {
        if (StringUtil.isBlank(mimeType)) {
            return defaultMaxLength;
        }
        final Long maxLength = maxLengthMap.get(mimeType);

            if (maxContentLength < 0) {
                final ContentLengthHelper contentLengthHelper = crawlerContainer.getComponent("contentLengthHelper");
                maxContentLength = contentLengthHelper.getMaxLength(mimeType);
            }
            final long contentLength = getContentLength(out);
            if (contentLength > maxContentLength) {
                throw new MaxLengthExceededException(