* When enabled, user information is stored and tracked.
     */
    @Size(max = 10)
    public String userInfo;

    /**
     * Enable or disable user favorite functionality.
     * When enabled, users can save favorite search results.
     */
    @Size(max = 10)
    public String userFavorite;

    /**
     * Enable or disable JSON Web API.
     * When enabled, search results can be retrieved via JSON API.
     */

            if (logger.isDebugEnabled()) {
                logger.debug("Saved crawler session: sessionId={}", crawlerContext.sessionId);
            }
        } catch (final Exception e) {
            logger.warn("Failed to save crawler session: sessionId={}", crawlerContext.sessionId, e);
        }
    }

    /**
     * Returns the crawler context.
     * @return The CrawlerContext instance.
     */

        getProperties().putAll(t);
    }

    @Override
    public Object remove(final Object key) {
        return getProperties().remove(key);
    }

    @Override
    public void save(final OutputStream out, final String comments) {
        throw new UnsupportedOperationException("Unsupported operation.");
    }

    @Override
    public Object setProperty(final String key, final String value) {

            final File file = ResourceUtil.getResourceAsFile("test");
            String path = file.getAbsolutePath();
            ftpUser.setHomeDirectory(path);

            userManager.save(ftpUser);
        }

        FtpServer server = factory.createServer();
        server.start();
        return server;
    }

    public void test_doGet_root_dir() throws FtpException {

            if (LogStream.level > 1) {
                log.println("SecurityException: jcifs.smb1 will ignore System properties");
            }
        }
    }

    /**
     * Save the configuration properties to an output stream.
     *
     * @param out the output stream to write properties to
     * @param header a descriptive header for the properties
     * @throws IOException if an I/O error occurs

### 3. Backup Existing System

Before migration:

1. Export current search configurations
2. Backup existing indices and data
3. Document custom integrations and API endpoints
4. Save user access control settings

---

## Migration Methods

### Google Search Appliance (GSA) / Google Mini

Fess provides comprehensive GSA migration support through configuration import and API compatibility.

    
    // Getters and increment methods
}
```

## 12. Future Enhancements

1. **Directory Leases**: Extend lease support for directories
2. **Lease Key Persistence**: Save lease keys for reconnection
3. **Parent-Child Relationships**: Implement hierarchical leases
4. **Lease Sharing**: Support lease sharing across handles