final long timestamp = propertiesFile.lastModified();
        if (timestamp <= lastModified) {
            return false;
        }

        return true;
    }

    public synchronized void load() {
        final Properties prop = new Properties();
        try (final FileInputStream fis = new FileInputStream(propertiesFile)) {
            lastModified = propertiesFile.lastModified();
            prop.load(fis);

            final Date lastModified = FessFunctions.parseDate(lastModifiedObj.toString());
            if (lastModified != null) {
                return lastModified;
            }
        } else if ((lastModifiedObj instanceof final String[] lastModifieds) && (lastModifieds.length > 0)) {
            final Date lastModified = FessFunctions.parseDate(lastModifieds[0]);
            if (lastModified != null) {

                    return true;
                }

                final Date lastModified = DocumentUtil.getValue(document, fessConfig.getIndexFieldLastModified(), Date.class);
                if (lastModified == null) {
                    return true;
                }
                urlQueue.setLastModified(lastModified.getTime());
                log(logHelper, LogType.CHECK_LAST_MODIFIED, crawlerContext, urlQueue);

 *
 * @return the last modified data as milliseconds since Jan 1, 1970
 */
    public long getDate() {
        try {
            return lastModified();
        } catch( SmbException se ) {
        }
        return 0L;
    }

/**
 * This URLConnection method just returns the result of <tt>lastModified</tt>.
 *

                    int diff = Math.abs((int) ( ( time / 1000 ) - ( f.lastModified() / 1000 ) ));
                    Assert.assertTrue("Have set time correctly", diff < 2);
                }
                else {
                    assertEquals(time, f.lastModified());
                }
            }
            catch ( SmbUnsupportedOperationException e ) {

                    map.put("id", Base64.getUrlEncoder().encodeToString(name.getBytes(StandardCharsets.UTF_8)));
                    map.put("name", name);
                    try {
                        map.put("lastModified", new Date(Files.getLastModifiedTime(filePath).toMillis()));
                    } catch (final IOException e) {
                        throw new IORuntimeException(e);
                    }

         * this.type = type == TYPE_WORKGROUP ? 0 : type;
         */
        this.fileLocator.updateType(type);
        this.attributes = attributes;
        this.createTime = createTime;
        this.lastModified = lastModified;
        this.lastAccess = lastAccess;
        this.size = size;
        this.isExists = true;

        if ( loadedAttributes ) {

        // last_modified
        final Date lastModified = responseData.getLastModified();
        if (lastModified != null) {
            putResultDataBody(dataMap, fessConfig.getIndexFieldLastModified(), lastModified);
            // timestamp
            putResultDataBody(dataMap, fessConfig.getIndexFieldTimestamp(), lastModified);
        } else {
            // timestamp

Transports","structure","dataTypeExpression","dataType","dataTypes","inspectPrefiltersOrTransports","jqXHR","inspected","seekingTransport","inspect","prefilterOrFactory","dataTypeOrTransport","ajaxExtend","flatOptions","ajaxSettings","active","lastModified","etag","url","isLocal","protocol","processData","async","contentType","accepts","json","responseFields","converters","* text","text html","text json","text xml","ajaxSetup","settings","ajaxPrefilter","ajaxTransport","ajax","transport","cacheU...

                map.put("size", item.size());
                map.put("directory", item.isDir());
                if (!item.isDir()) {
                    map.put("lastModified", item.lastModified());
                    fileList.add(map);
                } else {
                    list.add(map);
                }