Revert "Handle URL Connection file not found 404"

This reverts commit 57c0258.

Author: spencergibb

spring-cloud-gateway-server-mvc/src/main/java/org/springframework/cloud/gateway/server/mvc/handler/RestClientProxyExchange.java

@@ -16,7 +16,6 @@
 
 package org.springframework.cloud.gateway.server.mvc.handler;
 
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -70,15 +69,9 @@ private static int copyBody(Request request, OutputStream outputStream) throws I
 	}
 
 	private ServerResponse doExchange(Request request, ClientHttpResponse clientResponse) throws IOException {
-		try {
-			InputStream body = clientResponse.getBody();
-			// put the body input stream in a request attribute so filters can read it.
-			MvcUtils.putAttribute(request.getServerRequest(), MvcUtils.CLIENT_RESPONSE_INPUT_STREAM_ATTR, body);
-		}
-		catch (FileNotFoundException e) {
-			// if using SimpleClientHttpRequestFactory
-			return ServerResponse.notFound().build();
-		}
+		InputStream body = clientResponse.getBody();
+		// put the body input stream in a request attribute so filters can read it.
+		MvcUtils.putAttribute(request.getServerRequest(), MvcUtils.CLIENT_RESPONSE_INPUT_STREAM_ATTR, body);
 		ServerResponse serverResponse = GatewayServerResponse.status(clientResponse.getStatusCode())
 			.build((req, httpServletResponse) -> {
 				try (clientResponse) {

spring-cloud-gateway-server-mvc/src/test/java/org/springframework/cloud/gateway/server/mvc/ServerMvcIntegrationTests.java

@@ -275,12 +275,12 @@ public void stripPrefixPostWorks() {
 	public void setStatusGatewayRouterFunctionWorks() {
 		restClient.get()
 			.uri("/status/201")
-			.header("Host", "www.setstatus.org")
 			.exchange()
 			.expectStatus()
 			.isEqualTo(HttpStatus.TOO_MANY_REQUESTS)
 			.expectHeader()
-			.valueEquals("x-status", "201");
+			.valueEquals("x-status", "201"); // .expectBody(String.class).isEqualTo("Failed
+												// with 201");
 	}
 
 	@Test
@@ -981,11 +981,6 @@ public void clientResponseBodyAttributeWorks() {
 			});
 	}
 
-	@Test
-	public void notFoundWorks() {
-		restClient.get().uri("/status/404").header("Host", "www.notfound.org").exchange().expectStatus().isNotFound();
-	}
-
 	@SpringBootConfiguration
 	@EnableAutoConfiguration
 	@LoadBalancerClient(name = "httpbin", configuration = TestLoadBalancerConfig.Httpbin.class)
@@ -1037,7 +1032,7 @@ public RouterFunction<ServerResponse> gatewayRouterFunctionsAddReqHeader() {
 		public RouterFunction<ServerResponse> gatewayRouterFunctionsSetStatusAndAddRespHeader() {
 			// @formatter:off
 			return route("testsetstatus")
-					.GET("/status/{status}", host("**.setstatus.org"), http())
+					.GET("/status/{status}", http())
 					.before(new HttpbinUriResolver())
 					.after(setStatus(HttpStatus.TOO_MANY_REQUESTS))
 					.after(addResponseHeader("X-Status", "{status}"))
@@ -1605,16 +1600,6 @@ public RouterFunction<ServerResponse> gatewayRouterFunctionsReadResponseBody() {
 			// @formatter:on
 		}
 
-		@Bean
-		public RouterFunction<ServerResponse> gatewayRouterFunctions404() {
-			// @formatter:off
-			return route("testnotfound")
-					.GET("/status/404", host("**.notfound.org"), http())
-					.before(new HttpbinUriResolver())
-					.build();
-			// @formatter:on
-		}
-
 		@Bean
 		public FilterRegistrationBean myFilter() {
 			FilterRegistrationBean<MyFilter> reg = new FilterRegistrationBean<>(new MyFilter());