}

    /**
     * Test that both mapping and settings resources can be loaded simultaneously.
     * Verifies no resource contention or locking issues.
     */
    @Test
    public void testResourceLoading_simultaneousAccess() throws Exception {
        String mappings;
        String settings;

        // Load both resources

---

## Code Conventions

### Java Style

- **Formatter**: Eclipse formatter at `src/config/eclipse/formatter/java.xml`
- **Indentation**: 4 spaces (no tabs)
- **Line Length**: 140 characters max
- **License Headers**: Required (use `mvn license:format`)

### Naming Conventions

| Type | Convention | Example |
|------|-----------|---------|

        final HttpURLConnection connection = (HttpURLConnection) (proxy != null ? u.openConnection(proxy) : u.openConnection());
        if (sslSocketFactory != null && connection instanceof HttpsURLConnection) {
            ((HttpsURLConnection) connection).setSSLSocketFactory(sslSocketFactory);
        }
        return connection;
    }

    /**

 * </p>
 */
public class Handler extends URLStreamHandler {

    /**
     * Constructs a new Handler.
     */
    public Handler() {
        // Default constructor
    }

    /**
     * Opens a connection to the GCS URL.
     *
     * @param u The URL to open a connection to
     * @return A new GcsURLConnection instance

 * The {@link S3URLConnection} class handles the actual connection and data retrieval from the S3 service.
 * </p>
 */
public class Handler extends URLStreamHandler {

    /**
     * Constructs a new Handler.
     */
    public Handler() {
        // Default constructor
    }

    /**
     * Opens a connection to the S3 URL.
     *
     * @param u The URL to open a connection to
     * @return A new S3URLConnection instance

- Thread-local storage via `CrawlingParameterUtil`

**Resource Management**:
- `AutoCloseable` throughout
- `DeferredFileOutputStream` for large responses (temp files for >1MB)
- Connection pooling with limits
- Background temp file deletion via `FileUtil.deleteInBackground()`

**Fault Tolerance**:
- `FaultTolerantClient` wrapper (retry, circuit breaker)

    }

    /**
     * Gets the connection timeout in milliseconds.
     *
     * @return The connection timeout
     */
    public int getConnectTimeout() {
        return connectTimeout;
    }

    /**
     * Sets the connection timeout in milliseconds.
     *
     * @param connectTimeout The connection timeout
     */

			<email>******@****.***</email>
			<organization>CodeLibs Inc.</organization>
			<organizationUrl>https://codelibs.co</organizationUrl>
		</developer>
	</developers>
	<scm>
		<connection>scm:git:******@****.***:codelibs/corelib.git</connection>
		<url>scm:git:******@****.***:codelibs/corelib.git</url>
		<developerConnection>scm:git:******@****.***:codelibs/corelib.git</developerConnection>
	  <tag>HEAD</tag>
  </scm>
	<properties>

     * @param url The URL to set.
     */
    public void setUrl(final String url) {
        this.url = url;
    }

    /**
     * Sets the connection timeout.
     * @param connectionTimeout The connection timeout in milliseconds.
     */
    public void setConnectionTimeout(final Integer connectionTimeout) {
        this.connectionTimeout = connectionTimeout;
    }

    /**

                    maxTotalConnections, maxConnectionsPerRoute);
        }
    }

    /**
     * Builds the HTTP client connection manager with SSL and connection pool settings.
     *
     * @param httpClientBuilder The HTTP client builder
     * @return The configured connection manager
     */
    protected HttpClientConnectionManager buildConnectionManager(final HttpClientBuilder httpClientBuilder) {
        // SSL