@PostConstruct
	public void init() {
		// blockRequestHandlerOptional has low priority
		blockRequestHandlerOptional.ifPresent(GatewayCallbackManager::setBlockHandler);
		initAppType();
		initFallback();
	}
@Test
	public void testInit() {
		config.init();
		verify(gatewayProperties).getFallback(); // Check if fallback properties are fetched
		Assert.assertNotNull(config.sentinelGatewayBlockExceptionHandler());
		Assert.assertNotNull(config.sentinelGatewayFilter());
	}