3. **Resource Management**: `CurlResponse` implements `Closeable` for try-with-resources
4. **Async Support**: Both synchronous (`executeSync()`) and asynchronous (`execute()`) execution modes

## Technical Details

- **Java Version**: 17+
- **Dependencies**:
  - Apache Commons IO 2.19.0 (runtime)
  - JUnit 4.13.2 (test)
- **Module Name**: `org.codelibs.curl4j`

 * <li>For high-security applications, consider using AES with GCM mode via {@link #setAlgorithm(String)} and {@link #setTransformation(String)}</li>
 * <li>Ensure keys are securely generated and stored</li>
 * <li>For production systems with stringent security requirements, consider using authenticated encryption modes</li>
 * </ul>
 * <p>
 * <strong>Usage Example:</strong>
 * </p>
 * <pre>

 * It manages the crawling lifecycle, including initialization, execution coordination,
 * monitoring, and cleanup operations.
 *
 * <p>The crawler can operate in different modes based on command-line options:
 * <ul>
 * <li>Web crawling - crawls web sites and web content</li>
 * <li>File system crawling - crawls file systems and documents</li>

 *   <li>ftpConfigServerTimeZoneId: The time zone ID of the FTP server.</li>
 *   <li>activeExternalHost: The external IP address to use for active mode FTP.</li>
 *   <li>activeMinPort: The minimum port number for active mode FTP.</li>
 *   <li>activeMaxPort: The maximum port number for active mode FTP.</li>
 *   <li>autodetectEncoding: Whether to automatically detect UTF-8 encoding.</li>

cookie.default.path = /

# The default expire of cookie in seconds e.g. 31556926: one year, 86400: one day
cookie.default.expire = 3600
# Session tracking modes
session.tracking.modes=cookie

# Comma-separated list of request parameter keys to store in cookies before SSO login.
cookie.search.parameter.keys=q,num,sort

     * The value is, e.g. 404 <br>
     * comment: HTTP status codes considered as failure URLs.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getCrawlerFailureUrlStatusCodes();

    /**
     * Get the value for the key 'crawler.failure.url.status.codes' as {@link Integer}. <br>

import software.amazon.awssdk.services.s3.model.ListObjectsV2Request;
import software.amazon.awssdk.services.s3.model.ListObjectsV2Response;
import software.amazon.awssdk.services.s3.model.NoSuchBucketException;
import software.amazon.awssdk.services.s3.model.PutObjectRequest;
import software.amazon.awssdk.services.s3.model.PutObjectTaggingRequest;
import software.amazon.awssdk.services.s3.model.S3Object;

├── request/
│   ├── suggest/               # Suggestion queries
│   └── popularwords/          # Popular word queries
├── settings/                   # Configuration management
├── entity/                     # Domain models (SuggestItem, etc.)
├── normalizer/                 # Text normalizers
├── converter/                  # Reading converters (katakana, romaji)
├── concurrent/                 # Async patterns (Deferred/Promise)

import software.amazon.awssdk.services.s3.model.ListObjectsV2Request;
import software.amazon.awssdk.services.s3.model.ListObjectsV2Response;
import software.amazon.awssdk.services.s3.model.NoSuchBucketException;
import software.amazon.awssdk.services.s3.model.NoSuchKeyException;
import software.amazon.awssdk.services.s3.model.S3Exception;
import software.amazon.awssdk.services.s3.model.S3Object;
import software.amazon.awssdk.services.s3.model.Tag;

/**

     * @throws ConfigPropertyNotFoundException When the property is not found.
     */
    boolean is(String propertyKey);

    /**
     * Get the value for the key 'lasta_di.smart.deploy.mode'. <br>
     * The value is, e.g. warm <br>
     * comment: The mode of Lasta Di's smart-deploy, should be cool in production (e.g. hot, cool, warm)
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */