Handler handler2 = new Handler(null);
            Handler handler3 = new Handler(null);

            // Then
            assertEquals(443, handler1.getDefaultPort());
            assertEquals(443, handler2.getDefaultPort());
            assertEquals(443, handler3.getDefaultPort());
        }
    }

    @Nested
    @DisplayName("HTTP vs HTTPS Comparison Tests")

		}
		h.ServeHTTP(w, r)
	})
}

// criticalErrorHandler handles panics and fatal errors by
// `panic(logger.ErrCritical)` as done by `logger.CriticalIf`.
//
// It should be always the first / highest HTTP handler.
func setCriticalErrorHandler(h http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		defer func() {

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

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

    /**
     * Opens a connection to the storage URL.
     *

            Handler handler2 = new Handler();
            Handler handler3 = new Handler();

            // Then
            assertEquals(443, handler1.getDefaultPort());
            assertEquals(443, handler2.getDefaultPort());
            assertEquals(443, handler3.getDefaultPort());
        }
    }

    @Nested
    @DisplayName("HTTP vs HTTPS Comparison Tests")

        List<CompletableFuture<Void>> futures = new ArrayList<>();
        
        for (HandleInfo handle : handles) {
            futures.add(CompletableFuture.runAsync(() -> {
                try {
                    reconnectHandle(handle);
                } catch (Exception e) {
                    log.error("Failed to reconnect handle: " + handle.path, e);
                }

        TestCorsHandler handler1 = new TestCorsHandler("handler1");
        TestCorsHandler handler2 = new TestCorsHandler("handler2");
        TestCorsHandler handler3 = new TestCorsHandler("handler3");

        // Execute
        corsHandlerFactory.add(origin1, handler1);
        corsHandlerFactory.add(origin2, handler2);
        corsHandlerFactory.add(origin3, handler3);

        // Verify

        synchronized (PROTOCOL_HANDLERS) {
            URLStreamHandler handler = (URLStreamHandler) PROTOCOL_HANDLERS.get(protocol);
            if (handler != null) {
                return handler;
            }
            if (factory != null) {
                handler = factory.createURLStreamHandler(protocol);
            }
            if (handler == null) {

        synchronized (PROTOCOL_HANDLERS) {
            URLStreamHandler handler = PROTOCOL_HANDLERS.get(protocol);
            if (handler != null) {
                return handler;
            }
            if (factory != null) {
                handler = factory.createURLStreamHandler(protocol);
            }
            if (handler == null) {
                final String path = System.getProperty(HANDLER_PKGS_PROPERTY);

)

type promLogger struct{}

func (p promLogger) Println(v ...any) {
	metricsLogIf(GlobalContext, fmt.Errorf("metrics handler error: %v", v))
}

type metricsV3Server struct {
	registry *prometheus.Registry
	opts     promhttp.HandlerOpts
	auth     func(http.Handler) http.Handler

	metricsData *metricsV3Collection
}

var (
	globalMetricsV3CollectorPaths []collectorPath

In this case, the `startup` event handler function will initialize the items "database" (just a `dict`) with some values.

You can add more than one event handler function.

And your application won't start receiving requests until all the `startup` event handlers have completed.

### `shutdown` event { #shutdown-event }