Polish "Add auto-configuration for JdkClientHttpConnector"

See gh-31709

Author: wilkinsona

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/function/client/ClientHttpConnectorAutoConfiguration.java

@@ -41,7 +41,7 @@
 @AutoConfiguration
 @ConditionalOnClass(WebClient.class)
 @Import({ ClientHttpConnectorConfiguration.ReactorNetty.class, ClientHttpConnectorConfiguration.JettyClient.class,
-		ClientHttpConnectorConfiguration.HttpClient5.class, ClientHttpConnectorConfiguration.JdkClient.class})
+		ClientHttpConnectorConfiguration.HttpClient5.class, ClientHttpConnectorConfiguration.JdkClient.class })
 public class ClientHttpConnectorAutoConfiguration {
 
 	@Bean

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/function/client/ClientHttpConnectorConfiguration.java

@@ -31,8 +31,8 @@
 import org.springframework.context.annotation.Lazy;
 import org.springframework.http.client.reactive.ClientHttpConnector;
 import org.springframework.http.client.reactive.HttpComponentsClientHttpConnector;
-import org.springframework.http.client.reactive.JettyClientHttpConnector;
 import org.springframework.http.client.reactive.JdkClientHttpConnector;
+import org.springframework.http.client.reactive.JettyClientHttpConnector;
 import org.springframework.http.client.reactive.JettyResourceFactory;
 import org.springframework.http.client.reactive.ReactorClientHttpConnector;
 import org.springframework.http.client.reactive.ReactorResourceFactory;
@@ -109,14 +109,16 @@ HttpComponentsClientHttpConnector httpComponentsClientHttpConnector() {
 	}
 
 	@Configuration(proxyBeanMethods = false)
-	@ConditionalOnClass(JdkClientHttpConnector.class)
+	@ConditionalOnClass(java.net.http.HttpClient.class)
 	@ConditionalOnMissingBean(ClientHttpConnector.class)
 	static class JdkClient {
+
 		@Bean
 		@Lazy
 		JdkClientHttpConnector jdkClientHttpConnector() {
 			return new JdkClientHttpConnector();
 		}
+
 	}
 
 }

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/reactive/function/client/ClientHttpConnectorAutoConfigurationTests.java

@@ -87,8 +87,10 @@ void whenReactorAndJettyAreUnavailableThenHttpClientBeansAreDefined() {
 	}
 
 	@Test
-	void whenReactorAndJettyAndHttpClientBeansAreUnavailableThenJdkClientAreDefined() {
-		this.contextRunner.withClassLoader(new FilteredClassLoader(HttpClient.class, ReactiveRequest.class, HttpAsyncClients.class))
+	void whenReactorJettyAndHttpClientBeansAreUnavailableThenJdkClientBeansAreDefined() {
+		this.contextRunner
+				.withClassLoader(
+						new FilteredClassLoader(HttpClient.class, ReactiveRequest.class, HttpAsyncClients.class))
 				.run((context) -> {
 					BeanDefinition customizerDefinition = context.getBeanFactory()
 							.getBeanDefinition("clientConnectorCustomizer");

spring-boot-project/spring-boot-docs/src/docs/asciidoc/io/rest-client.adoc

@@ -63,7 +63,7 @@ include::code:MyService[]
 [[io.rest-client.webclient.runtime]]
 ==== WebClient Runtime
 Spring Boot will auto-detect which `ClientHttpConnector` to use to drive `WebClient`, depending on the libraries available on the application classpath.
-For now, Reactor Netty, Jetty RS client and Apache HttpClient are supported.
+For now, Reactor Netty, Jetty RS client, Apache HttpClient, and the JDK's HttpClient are supported.
 
 The `spring-boot-starter-webflux` starter depends on `io.projectreactor.netty:reactor-netty` by default, which brings both server and client implementations.
 If you choose to use Jetty as a reactive server instead, you should add a dependency on the Jetty Reactive HTTP client library, `org.eclipse.jetty:jetty-reactive-httpclient`.