// IPv4 addresses
        assertFalse(IpAddressUtil.isIPv6Address("127.0.0.1"));
        assertFalse(IpAddressUtil.isIPv6Address("192.168.1.1"));
        assertFalse(IpAddressUtil.isIPv6Address("10.0.0.1"));

        // Hostname
        assertFalse(IpAddressUtil.isIPv6Address("localhost"));
        assertFalse(IpAddressUtil.isIPv6Address("example.com"));

        // Null

        assertEquals(10L, callback1.getDocumentSize());
        assertEquals(500L, callback1.getExecuteTime());

        assertEquals(20L, callback2.getDocumentSize());
        assertEquals(1000L, callback2.getExecuteTime());

        // Test store operations
        DataStoreParams params = new DataStoreParams();
        Map<String, Object> data = new HashMap<>();

        callback1.store(params, data);

    /**
     * The name of the web configuration.
     */
    @Required
    @Size(max = 200)
    public String name;

    /**
     * The description of the web configuration.
     */
    @Size(max = 1000)
    public String description;

    /**
     * The URLs to be crawled by this web configuration.
     */
    @Required
    @UriType(protocolType = ProtocolType.WEB)

    /** The CRUD operation mode for form processing */
    @ValidateTypeFailure
    public Integer crudMode;

    /** The stopword to be added to the dictionary */
    @Required
    @Size(max = 1000)
    public String input;

    /**
     * Initializes the form with default values for creating a new stopword entry.
     */
    public void initialize() {
        crudMode = CrudMode.CREATE;
    }

        super();
    }

    /**
     * The unique identifier of the user being edited.
     * This is a required field for identifying which user to update.
     */
    @Required
    @Size(max = 1000)
    public String id;

    /**
     * The version number of the user for optimistic locking.
     * This field is required to prevent concurrent modification conflicts

                case FessConfig.search_engine_HTTP_URL:
                    return "http://localhost:9201";
                case FessConfig.search_engine_heartbeat_interval:
                    return "10000";
                case FessConfig.APP_CIPHER_ALGORITHM:
                    return "aes";
                case FessConfig.APP_CIPHER_KEY:
                    return "___change__me___";

        requestBody.put(KEY_PROPERTY, keyProp);
        requestBody.put("paths", paths);
        requestBody.put("num_of_thread", 5);
        requestBody.put("interval_time", 1000);
        requestBody.put("boost", id);
        requestBody.put("available", true);
        requestBody.put("sort_order", id);
        return requestBody;
    }

    @Override

    /**
     * Default constructor.
     */
    public FailureUrlPager() {
        // Default constructor
    }

    /** URL filter for searching failure URLs. */
    //@Maxbytelength(maxbytelength = 1000)
    public String url;

    /** Minimum error count filter for searching failure URLs. */
    //@IntRange(min = 0, max = 2147483647)
    public String errorCountMin;

		</property>
	</component>
	<component name="searchLogHelper" class="org.codelibs.fess.helper.SearchLogHelper">
		<!-- 
		<property name="userCheckInterval">5 * 60 * 1000</property>
		<property name="userInfoCacheSize">1000</property>
		 -->
	</component>
	<component name="crawlingConfigHelper" class="org.codelibs.fess.helper.CrawlingConfigHelper">
	</component>
	<component name="documentHelper" class="org.codelibs.fess.helper.DocumentHelper">

For migrating from Apache Solr:

#### Document Export and Import

**Step 1: Export from Solr**

```bash
# Export Solr documents as JSON
curl "http://solr-server:8983/solr/collection1/select?q=*:*&rows=10000&wt=json" \
  -o solr-export.json
```

**Step 2: Transform to Fess Format**

Create a transformation script to map Solr fields to Fess fields:

```python
import json

# Load Solr export