}
        // content_length
        putResultDataBody(dataMap, fessConfig.getIndexFieldContentLength(), Long.toString(responseData.getContentLength()));
        // last_modified
        final Date lastModified = getLastModified(dataMap, responseData);
        if (lastModified != null) {
            dataMap.put(fessConfig.getIndexFieldLastModified(), lastModified); // overwrite
            // timestamp

            return 0;
        }

        @Override
        public String getMethod() {
            return null;
        }

        @Override
        public Long getLastModified() {
            return null;
        }

        @Override
        public String getSessionId() {
            return null;
        }

        @Override
        public Long getCreateTime() {

            return 100;
        }

        @Override
        public Long getContentLength() {
            return 1000L;
        }

        @Override
        public Long getLastModified() {
            return System.currentTimeMillis();
        }

        @Override
        public void setLastModified(Long lastModified) {
            // Do nothing in test
        }

                    }
                    return false;
                }
                if (responseData.getLastModified() == null) {
                    return true;
                }
                if (responseData.getLastModified().getTime() <= lastModified.getTime() && httpStatusCode == HTTP_STATUS_OK) {

                    log(logHelper, LogType.NOT_MODIFIED, crawlerContext, urlQueue);

                map.put("size", item.getSize());
                map.put("directory", item.isDirectory());
                if (!item.isDirectory()) {
                    map.put("lastModified", item.getLastModified());
                    fileList.add(map);
                } else {
                    list.add(map);
                }
            }
        } catch (final Exception e) {