"published": "2025-01-15",
  "tags": ["crawler", "extractor", "json"],
  "content": {
    "summary": "This is a sample JSON document for testing",
    "body": "The extractor should handle nested objects and arrays properly"
  },
  "metadata": {
    "created_at": "2025-01-01T00:00:00Z",
    "updated_at": "2025-01-15T12:00:00Z"
  }

    }
}
```

## Links

Check out [Fess Crawler](https://github.com/codelibs/fess-crawler) for more information.

## Conclusion

import org.codelibs.fess.crawler.exception.ExtractException;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class to verify proper resource management in Extractor implementations.
 * This test ensures that resources are properly closed even when exceptions occur.
 */
public class ExtractorResourceManagementTest extends PlainTestCase {

**Covered Extractors**:
- MsWordExtractor
- MsExcelExtractor
- MsPowerPointExtractor
- TextExtractor

**Test Count**: 8 tests

**Key Scenarios**:
- ✅ Successful extraction closes resources properly
- ✅ Failed extraction includes descriptive error messages
- ✅ Null input stream validation
- ✅ Error messages include file type context

---

### 2. FilenameExtractorEnhancedTest.java

 *
 * <p>Thread Safety: This class is thread-safe. Each evaluate() call creates
 * a new GroovyShell instance to ensure thread isolation.</p>
 *
 * <p>Resource Management: GroovyClassLoader instances are properly managed
 * and cleaned up after script evaluation to prevent memory leaks.</p>
 */
public class GroovyEngine extends AbstractScriptEngine {
    private static final Logger logger = LogManager.getLogger(GroovyEngine.class);

            assertEquals("Resource not found: non/existent/resource.json", e.getMessage());
            // Test passes - exception was thrown as expected
        }
    }

    /**
     * Test that resource content is properly read using readAllBytes.
     * Verifies that the new implementation correctly reads entire resource content.
     */
    @Test
    public void testResourceReading_readAllBytesCorrectness() throws Exception {

package org.codelibs.fess.util;

import java.net.Inet6Address;
import java.net.InetAddress;

/**
 * Utility class for handling IP addresses, particularly IPv6 addresses in URLs.
 * This class provides methods to properly format IPv6 addresses for use in URLs
 * by adding brackets where necessary.
 */
public final class IpAddressUtil {

    /**
     * Private constructor to prevent instantiation of utility class.
     */

    void setObjectTags(String objectName, Map<String, String> tags);

    /**
     * Ensures the bucket exists, creating it if necessary.
     */
    void ensureBucketExists();

    /**
     * Checks if storage is properly configured and accessible.
     *
     * @return true if storage is available
     */
    boolean isAvailable();

    /**
     * Closes the client and releases resources.
     */
    @Override

        verify(mockBuilder, times(2)).setPreference("_local");
    }

    /**
     * Test: filterWithHeader properly updates the internal client
     * Verifies that the returned client is properly stored
     */
    @Test
    public void testFilterWithHeaderUpdatesClient() {
        final Client mockNewClient = mock(Client.class);

import java.nio.file.Files;
import java.util.logging.Logger;

/**
 * ContentCache is a class that provides a way to cache content either in memory or in a file.
 * It implements the Closeable interface to ensure that resources are properly released.
 *
 * <p>This class supports two types of content caching:
 * <ul>
 *   <li>In-memory caching using a byte array</li>
 *   <li>File-based caching using a File object</li>
 * </ul>
 *