this.pollingFetchSize = pollingFetchSize;
    }

    /**
     * Sets the maximum crawling queue size.
     * @param maxCrawlingQueueSize The maximum crawling queue size.
     */
    public void setMaxCrawlingQueueSize(final int maxCrawlingQueueSize) {
        this.maxCrawlingQueueSize = maxCrawlingQueueSize;
    }

    }

    @Test
    public void test_poll_maxCrawlingQueueSizeTx() {
        final String sessionId = "poll_session5";
        final int maxSize = 5;
        urlQueueService.setMaxCrawlingQueueSize(maxSize);

        // Insert more items than max crawling queue size
        final List<OpenSearchUrlQueue> urlQueueList = new ArrayList<>();
        for (int i = 1; i <= maxSize + 10; i++) {