Add hints for autoconfiguring ClientHttpConnector

Closes gh-1291

Author: eleftherias

samples/webclient/src/main/java/com/example/webclient/HttpsWebClientBuilderRequester.java

@@ -0,0 +1,26 @@
+package com.example.webclient;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+import org.springframework.web.reactive.function.client.WebClient;
+
+@Component
+public class HttpsWebClientBuilderRequester implements CommandLineRunner {
+
+	Logger logger = LoggerFactory.getLogger(HttpsRequester.class);
+
+	private WebClient client;
+
+	public HttpsWebClientBuilderRequester() {
+		this.client = WebClient.builder().baseUrl("https://httpbin.org").build();
+	}
+
+	@Override
+	public void run(String... args) {
+		this.client.get().uri("anything").retrieve().bodyToMono(Data.class).subscribe(message -> logger.info(message.toString()));
+	}
+	
+}

spring-native-configuration/src/main/java/org/springframework/boot/autoconfigure/web/reactive/function/client/ClientHttpConnectorAutoConfigurationHints.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2019-2021 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.autoconfigure.web.reactive.function.client;
+
+import org.springframework.nativex.hint.AccessBits;
+import org.springframework.nativex.hint.NativeHint;
+import org.springframework.nativex.hint.TypeHint;
+import org.springframework.nativex.type.NativeConfiguration;
+
+@NativeHint(trigger = ClientHttpConnectorAutoConfiguration.class,
+		types = @TypeHint(typeNames = {
+				"org.springframework.boot.autoconfigure.web.reactive.function.client.ClientHttpConnectorConfiguration$ReactorNetty",
+				"org.springframework.boot.autoconfigure.web.reactive.function.client.ClientHttpConnectorConfiguration$JettyClient",
+				"org.springframework.boot.autoconfigure.web.reactive.function.client.ClientHttpConnectorConfiguration$HttpClient5"
+		}, access = AccessBits.QUERY_DECLARED_METHODS)
+)
+public class ClientHttpConnectorAutoConfigurationHints implements NativeConfiguration {
+}

spring-native-configuration/src/main/resources/META-INF/services/org.springframework.nativex.type.NativeConfiguration

@@ -69,6 +69,7 @@ org.springframework.boot.autoconfigure.task.TaskHints
 org.springframework.boot.autoconfigure.transaction.TransactionHints
 org.springframework.boot.autoconfigure.websocket.servlet.WebSocketHints
 org.springframework.boot.autoconfigure.web.reactive.WebFluxHints
+org.springframework.boot.autoconfigure.web.reactive.function.client.ClientHttpConnectorAutoConfigurationHints
 org.springframework.boot.autoconfigure.web.servlet.WebHints
 org.springframework.boot.autoconfigure.web.servlet.WebMvcHints
 org.springframework.boot.context.config.ConfigDataPropertiesHints