}

    /**
     * Set the value of crawlerEndTime, used in parameter comment. <br>
     * Even if empty string, treated as empty plainly. So "IF pmb != null" is false if empty.
     * @param crawlerEndTime The parameter value of crawlerEndTime. (NotNull)
     */
    public void setCrawlerEndTime(String crawlerEndTime) {
        registerVariable("crawlerEndTime", crawlerEndTime);
    }

    /**

        Map<String, String> infoMap = new HashMap<>();
        infoMap.put(Constants.CRAWLER_STATUS, Constants.TRUE);
        infoMap.put("CrawlerStartTime", "2024-01-01T10:00:00");
        infoMap.put("CrawlerEndTime", "2024-01-01T11:00:00");

        try {
            crawler.sendMail(infoMap);
        } catch (Exception e) {
            fail("Should not throw exception: " + e.getMessage());
        }
    }

                        postcard.addTo(fessConfig.getMailFromAddress());
                        postcard.dryrun();
                    }
                    postcard.setCrawlerEndTime(getValueFromMap(dataMap, "crawlerEndTime", StringUtil.EMPTY));
                    postcard.setCrawlerExecTime(getValueFromMap(dataMap, "crawlerExecTime", "0"));

    /** Info map key for crawler start time. */
    public static final String CRAWLER_START_TIME = "CrawlerStartTime";

    /** Info map key for crawler end time. */
    public static final String CRAWLER_END_TIME = "CrawlerEndTime";

    /** Info map key for crawler execution time. */
    public static final String CRAWLER_EXEC_TIME = "CrawlerExecTime";

    /** Info map key for web/file system crawler start time. */