Deprecate OkHttp3ClientHttpRequestFactory

Closes gh-30919

spring-web/src/test/java/org/springframework/http/client/OkHttp3ClientHttpRequestFactoryTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2023 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.
@@ -25,6 +25,7 @@ import org.springframework.http.HttpMethod;
  */
 public class OkHttp3ClientHttpRequestFactoryTests extends AbstractHttpRequestFactoryTests {
 
+	@SuppressWarnings("removal")
 	@Override
 	protected ClientHttpRequestFactory createRequestFactory() {
 		return new OkHttp3ClientHttpRequestFactory();

spring-web/src/test/java/org/springframework/web/client/RestClientIntegrationTests.java

@@ -72,6 +72,7 @@ class RestClientIntegrationTests {
 	@interface ParameterizedRestClientTest {
 	}
 
+	@SuppressWarnings("removal")
 	static Stream<Named<ClientHttpRequestFactory>> clientHttpRequestFactories() {
 		return Stream.of(
 			named("JDK HttpURLConnection", new SimpleClientHttpRequestFactory()),

spring-web/src/test/java/org/springframework/web/client/RestTemplateIntegrationTests.java

@@ -91,6 +91,7 @@ class RestTemplateIntegrationTests extends AbstractMockWebServerTests {
 	@interface ParameterizedRestTemplateTest {
 	}
 
+	@SuppressWarnings("removal")
 	static Stream<Named<ClientHttpRequestFactory>> clientHttpRequestFactories() {
 		return Stream.of(
 			named("JDK HttpURLConnection", new SimpleClientHttpRequestFactory()),