/**
     * Creates a new MemoryDataHelper instance.
     */
    public MemoryDataHelper() {
        super();
    }

    /**
     * Clears all URL queues and session data.
     */
    public void clear() {
        urlQueueMap.clear();
        sessionMap.clear();
    }

    /**
     * Returns the URL queue for the specified session ID.
     * Creates a new queue if one doesn't exist.

(_Please see [discuss.codelibs.org](https://discuss.codelibs.org/c/FessEN/8) before filing a bug._)

**Describe the bug**
A clear and concise description of what the bug is.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**

     * Deletes URL queue data and access result data, and clears the URL filter.
     * @param sessionId The session ID to clean up.
     */
    public void cleanup(final String sessionId) {
        // TODO transaction?
        urlQueueService.delete(sessionId);
        dataService.delete(sessionId);
        urlFilter.clear();
    }

    /**
     * Closes the crawler, releasing resources.

        }
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.filter.UrlFilter#clear()
     */
    @Override
    public void clear() {
        cachedIncludeSet.clear();
        cachedExcludeSet.clear();
        if (sessionId != null) {
            getUrlFilterService().delete(sessionId);
        }
    }

    /*
     * (non-Javadoc)

(_Please see [discuss.codelibs.org](https://discuss.codelibs.org/c/FessEN/8) before filing a bug._)

**Describe the bug**
A clear and concise description of what the bug is.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**

        assertEquals(0, list.size());

        cmd = "test.sh";
        params.clear();
        list = extractor.parseCommand(cmd, params);
        assertEquals(1, list.size());
        assertEquals("test.sh", list.get(0));

        cmd = "test.sh \"test1 ' test2\"";
        params.clear();
        list = extractor.parseCommand(cmd, params);
        assertEquals(2, list.size());

        // Clear the filter
        urlFilter.clear();

        // After clear, all URLs should match (no filters applied)
        assertTrue(urlFilter.match("https://example.com/page"));
        assertTrue(urlFilter.match("https://other.com/page"));
        assertTrue(urlFilter.match("https://any.com/image.jpg"));
    }

    /**
     * Test clear method without initialization
     */

    /**
     * Process an url when it's added as a seed url.
     *
     * @param url URL
     */
    void processUrl(String url);

    /**
     * Clear this filter.
     */
    void clear();

- **Rules**: Content processing rules and validation

## Building and Testing

### Build Commands

```bash
# Build all modules
mvn clean install

# Build without tests
mvn clean install -DskipTests

# Build specific module
mvn clean install -pl fess-crawler

# Generate test coverage report
mvn jacoco:report
```

### Code Quality

```bash
# Format code

            } catch (final Exception e) {
                logger.warn("Failed to restore " + urlQueue, e);
            }
        }));
    }

    /**
     * Clears the cache.
     */
    public void clearCache() {
        sessionCache.clear();
    }

    /**
     * Updates the session ID for all URL queue entries.
     *
     * @param oldSessionId The old session ID.