// title
        // content
        // cache
        // digest
        // host
        // site
        // url
        // anchor
        // content_length
        // last_modified
        // id
        // virtual_host
        defaultDataMap.put(fessConfig.getIndexFieldVirtualHost(),

            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) {

    /**
     * Field name for URL.
     */
    protected static final String URL = "url";

    /**
     * Field name for last modified timestamp.
     */
    protected static final String LAST_MODIFIED = "lastModified";

    /**
     * Field name for creation time timestamp.
     */
    protected static final String CREATE_TIME = "createTime";

    /**
     * Document type.
     */

    /** The key of the configuration. e.g. has_cache */
    String INDEX_FIELD_has_cache = "index.field.has_cache";

    /** The key of the configuration. e.g. last_modified */
    String INDEX_FIELD_last_modified = "index.field.last_modified";

    /** The key of the configuration. e.g. anchor */
    String INDEX_FIELD_ANCHOR = "index.field.anchor";

    /** The key of the configuration. e.g. segment */

# Field name for language in the index.
index.field.lang=lang
# Field name for cache status in the index.
index.field.has_cache=has_cache
# Field name for last modified date in the index.
index.field.last_modified=last_modified
# Field name for anchor in the index.
index.field.anchor=anchor
# Field name for segment in the index.
index.field.segment=segment
# Field name for role in the index.
index.field.role=role

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

     */
    public StorageItem(final String name, final String path, final boolean directory, final long size, final ZonedDateTime lastModified,
            final String encodedId) {
        this.name = name;
        this.path = path;
        this.directory = directory;
        this.size = size;
        this.lastModified = lastModified;
        this.encodedId = encodedId;
    }

    /**
     * Returns the name of the item.
     *

                    final String fileName = getName(objectKey);
                    final ZonedDateTime lastModified =
                            s3Object.lastModified() != null ? s3Object.lastModified().atZone(java.time.ZoneId.systemDefault()) : null;
                    items.add(new StorageItem(fileName, prefix, false, s3Object.size(), lastModified, encodeId(objectKey)));
                }
            }

        Handler.GcsURLConnection conn = (Handler.GcsURLConnection) handler.openConnection(url);

        // Should return 0 when auto-connect fails due to missing project ID
        long lastModified = conn.getLastModified();
        assertEquals(0, lastModified);
    }

    /**
     * Test that getDate() delegates to getLastModified().
     */
    public void test_getDate_delegatesToGetLastModified() throws Exception {

        Handler.StorageURLConnection conn = (Handler.StorageURLConnection) handler.openConnection(url);

        // Should return 0 when auto-connect fails due to missing endpoint
        long lastModified = conn.getLastModified();
        assertEquals(0, lastModified);
    }

    /**
     * Test that getDate() delegates to getLastModified().
     */
    public void test_getDate_delegatesToGetLastModified() throws Exception {