Suppress Jackson 2 warnings

See gh-45535

Author: philwebb

buildSrc/src/main/java/org/springframework/boot/build/bom/bomr/github/StandardGitHub.java

@@ -45,8 +45,7 @@ final class StandardGitHub implements GitHub {
 
 	@Override
 	public GitHubRepository getRepository(String organization, String name) {
-		RestTemplate restTemplate = new RestTemplate(
-				Collections.singletonList(new MappingJackson2HttpMessageConverter(new ObjectMapper())));
+		RestTemplate restTemplate = createRestTemplate();
 		restTemplate.getInterceptors().add((request, body, execution) -> {
 			request.getHeaders().add("User-Agent", StandardGitHub.this.username);
 			request.getHeaders()
@@ -61,4 +60,9 @@ public GitHubRepository getRepository(String organization, String name) {
 		return new StandardGitHubRepository(restTemplate);
 	}
 
+	@SuppressWarnings("removal")
+	private RestTemplate createRestTemplate() {
+		return new RestTemplate(Collections.singletonList(new MappingJackson2HttpMessageConverter(new ObjectMapper())));
+	}
+
 }

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/jackson/JacksonEndpointAutoConfiguration.java

@@ -38,6 +38,7 @@
  */
 @Configuration(proxyBeanMethods = false)
 @AutoConfigureAfter(JacksonAutoConfiguration.class)
+@SuppressWarnings("removal")
 public class JacksonEndpointAutoConfiguration {
 
 	@Bean

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/web/reactive/WebFluxEndpointManagementContextConfiguration.java

@@ -180,6 +180,7 @@ private void process(ServerCodecConfigurer configurer) {
 			}
 		}
 
+		@SuppressWarnings("removal")
 		private void process(Encoder<?> encoder) {
 			if (encoder instanceof Jackson2JsonEncoder jackson2JsonEncoder) {
 				jackson2JsonEncoder.registerObjectMappersForType(OperationResponseBody.class, (associations) -> {

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/web/servlet/WebMvcEndpointManagementContextConfiguration.java

@@ -151,6 +151,7 @@ static EndpointObjectMapperWebMvcConfigurer endpointObjectMapperWebMvcConfigurer
 	 * {@link OperationResponseBody} to {@link MappingJackson2HttpMessageConverter}
 	 * instances.
 	 */
+	@SuppressWarnings("removal")
 	static class EndpointObjectMapperWebMvcConfigurer implements WebMvcConfigurer {
 
 		private static final List<MediaType> MEDIA_TYPES = Collections
@@ -171,6 +172,7 @@ public void configureMessageConverters(List<HttpMessageConverter<?>> converters)
 			}
 		}
 
+		@SuppressWarnings("removal")
 		private void configure(MappingJackson2HttpMessageConverter converter) {
 			converter.registerObjectMappersForType(OperationResponseBody.class, (associations) -> {
 				ObjectMapper objectMapper = this.endpointObjectMapper.get();

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/integrationtest/EndpointObjectMapperConfiguration.java

@@ -37,6 +37,7 @@
  * @author Phillip Webb
  */
 @Configuration
+@SuppressWarnings("removal")
 class EndpointObjectMapperConfiguration {
 
 	@Bean

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/audit/AuditEventTests.java

@@ -71,6 +71,7 @@ void nullType() {
 	}
 
 	@Test
+	@SuppressWarnings("removal")
 	void jsonFormat() throws Exception {
 		AuditEvent event = new AuditEvent("johannes", "UNKNOWN",
 				Collections.singletonMap("type", (Object) "BadCredentials"));

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/BackgroundPreinitializer.java

@@ -164,6 +164,7 @@ public void run() {
 	/**
 	 * Early initializer for Jackson.
 	 */
+	@SuppressWarnings("removal")
 	private static final class JacksonInitializer implements Runnable {
 
 		@Override

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/rest/RepositoryRestMvcAutoConfiguration.java

@@ -53,6 +53,7 @@
 @ConditionalOnClass(RepositoryRestMvcConfiguration.class)
 @EnableConfigurationProperties(RepositoryRestProperties.class)
 @Import(RepositoryRestMvcConfiguration.class)
+@SuppressWarnings("removal")
 public class RepositoryRestMvcAutoConfiguration {
 
 	@Bean

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/rest/SpringBootRepositoryRestConfigurer.java

@@ -34,6 +34,7 @@
  * @author Stephane Nicoll
  */
 @Order(0)
+@SuppressWarnings("removal")
 class SpringBootRepositoryRestConfigurer implements RepositoryRestConfigurer {
 
 	private final Jackson2ObjectMapperBuilder objectMapperBuilder;

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/graphql/rsocket/GraphQlRSocketAutoConfiguration.java

@@ -54,6 +54,7 @@ public class GraphQlRSocketAutoConfiguration {
 
 	@Bean
 	@ConditionalOnMissingBean
+	@SuppressWarnings("removal")
 	public GraphQlRSocketHandler graphQlRSocketHandler(ExecutionGraphQlService graphQlService,
 			ObjectProvider<RSocketGraphQlInterceptor> interceptors, ObjectMapper objectMapper) {
 		return new GraphQlRSocketHandler(graphQlService, interceptors.orderedStream().toList(),