*
     * @param activeSessionId the session ID to exclude from deletion (can be null)
     * @param name optional name filter for sessions to delete (can be null or blank)
     * @param date the expiration time threshold - sessions expired before this time will be deleted
     */
    public void deleteSessionIdsBefore(final String activeSessionId, final String name, final long date) {

        if (authenticationTTL <= 0) {
            return false; // No expiration
        }
        long age = System.currentTimeMillis() - authenticationTimestamp;
        return age > authenticationTTL;
    }

    /**
     * Set the authentication time-to-live in milliseconds
     *
     * @param ttl time-to-live in milliseconds (0 or negative for no expiration)
     */
    public void setAuthenticationTTL(long ttl) {

            assertFalse(testBlock.isExtendedSecurity());
            testBlock.setExtendedSecurity(true);
            assertTrue(testBlock.isExtendedSecurity());
        }

        @Test
        @DisplayName("Test expiration property")
        void testExpirationProperty() {
            assertNull(testBlock.getExpiration());
            testBlock.setExpiration(123456789L);
            assertEquals(123456789L, testBlock.getExpiration());

            DfsReferralDataImpl cur = null;
            final long expiration = System.currentTimeMillis() + ctx.getConfig().getDfsTtl() * 1000;
            final Referral[] refs = dfsResp.getReferrals();
            for (int di = 0; di < rn; di++) {
                final DfsReferralDataImpl dr = DfsReferralDataImpl.fromReferral(refs[di], path, expiration, dfsResp.getPathConsumed());
                dr.setDomain(targetDomain);

            new byte[16],
            HandleType.DURABLE_V2,
            1000,  // 1 second timeout
            null
        );
        
        assertFalse(info.isExpired());
        
        // Wait for expiration
        Thread.sleep(1500);
        assertTrue(info.isExpired());
        
        // Persistent handles don't expire
        HandleInfo persistent = new HandleInfo(
            "/test/file2.txt",

index.field.favorite_count=favorite_count
# Field name for click count in the index.
index.field.click_count=click_count
# Field name for config ID in the index.
index.field.config_id=config_id
# Field name for expiration date in the index.
index.field.expires=expires
# Field name for URL in the index.
index.field.url=url
# Field name for document ID in the index.
index.field.doc_id=doc_id
# Field name for internal ID in the index.

     */
    String getIndexFieldConfigId();

    /**
     * Get the value for the key 'index.field.expires'. <br>
     * The value is, e.g. expires <br>
     * comment: Field name for expiration date in the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldExpires();

    /**

    protected static final int ATTR_GET_MASK = 0x7FFF;
    /**
     * Mask for attributes that can be set on the server
     */
    protected static final int ATTR_SET_MASK = 0x30A7;
    /**
     * Default expiration period for cached attributes in milliseconds
     */
    protected static final int DEFAULT_ATTR_EXPIRATION_PERIOD = 5000;

    /**
     * Hash code for the "." directory entry
     */