Suppress Jackson 2 warnings

See gh-45535

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(
+		RestTemplate restTemplate = createRestTemplate();
-				Collections.singletonList(new MappingJackson2HttpMessageConverter(new ObjectMapper())));
 		restTemplate.getInterceptors().add((request, body, execution) -> {
 			request.getHeaders().add("User-Agent", StandardGitHub.this.username);
 			request.getHeaders()
@@ -61,4 +60,9 @@ final class StandardGitHub implements GitHub {
 		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 @@ import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
  */
 @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 @@ public class WebFluxEndpointManagementContextConfiguration {
 			}
 		}
 
+		@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 @@ public class WebMvcEndpointManagementContextConfiguration {
 	 * {@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 class WebMvcEndpointManagementContextConfiguration {
 			}
 		}
 
+		@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 @@ import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
  * @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 @@ class AuditEventTests {
 	}
 
 	@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 class BackgroundPreinitializer implements ApplicationListener<SpringAppli
 	/**
 	 * 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 @@ import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 @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 @@ import org.springframework.web.servlet.config.annotation.CorsRegistry;
  * @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(),

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

@@ -79,6 +79,7 @@ class GsonHttpMessageConvertersConfiguration {
 			super(ConfigurationPhase.REGISTER_BEAN);
 		}
 
+		@SuppressWarnings("removal")
 		@ConditionalOnBean(MappingJackson2HttpMessageConverter.class)
 		static class JacksonAvailable {
 

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

@@ -200,6 +200,7 @@ public class HttpMessageConverters implements Iterable<HttpMessageConverter<?>>
 		return converters;
 	}
 
+	@SuppressWarnings("removal")
 	private void reorderXmlConvertersToEnd(List<HttpMessageConverter<?>> converters) {
 		List<HttpMessageConverter<?>> xml = new ArrayList<>();
 		for (Iterator<HttpMessageConverter<?>> iterator = converters.iterator(); iterator.hasNext();) {

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

@@ -35,6 +35,7 @@ import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConve
  * @author Andy Wilkinson
  */
 @Configuration(proxyBeanMethods = false)
+@SuppressWarnings("removal")
 class JacksonHttpMessageConvertersConfiguration {
 
 	@Configuration(proxyBeanMethods = false)

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

@@ -65,6 +65,7 @@ class JsonbHttpMessageConvertersConfiguration {
 
 		}
 
+		@SuppressWarnings("removal")
 		@ConditionalOnMissingBean({ MappingJackson2HttpMessageConverter.class, GsonHttpMessageConverter.class })
 		static class JacksonAndGsonMissing {
 

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/http/codec/CodecsAutoConfiguration.java

@@ -54,6 +54,7 @@ public class CodecsAutoConfiguration {
 
 	@Configuration(proxyBeanMethods = false)
 	@ConditionalOnClass(ObjectMapper.class)
+	@SuppressWarnings("removal")
 	static class JacksonCodecConfiguration {
 
 		@Bean

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jackson/Jackson2ObjectMapperBuilderCustomizer.java

@@ -29,6 +29,7 @@ import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
  * @since 1.4.0
  */
 @FunctionalInterface
+@SuppressWarnings("removal")
 public interface Jackson2ObjectMapperBuilderCustomizer {
 
 	/**

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

@@ -86,6 +86,7 @@ import org.springframework.util.ReflectionUtils;
  */
 @AutoConfiguration
 @ConditionalOnClass(ObjectMapper.class)
+@SuppressWarnings("removal")
 public class JacksonAutoConfiguration {
 
 	private static final Map<?, Boolean> FEATURE_DEFAULTS;

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

@@ -66,6 +66,7 @@ public class RSocketStrategiesAutoConfiguration {
 
 	@Configuration(proxyBeanMethods = false)
 	@ConditionalOnClass({ ObjectMapper.class, CBORFactory.class })
+	@SuppressWarnings("removal")
 	protected static class JacksonCborStrategyConfiguration {
 
 		private static final MediaType[] SUPPORTED_TYPES = { MediaType.APPLICATION_CBOR };
@@ -85,6 +86,7 @@ public class RSocketStrategiesAutoConfiguration {
 
 	@Configuration(proxyBeanMethods = false)
 	@ConditionalOnClass(ObjectMapper.class)
+	@SuppressWarnings("removal")
 	protected static class JacksonJsonStrategyConfiguration {
 
 		private static final MediaType[] SUPPORTED_TYPES = { MediaType.APPLICATION_JSON,

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/websocket/servlet/WebSocketMessagingAutoConfiguration.java

@@ -83,6 +83,7 @@ public class WebSocketMessagingAutoConfiguration {
 
 		@Override
 		public boolean configureMessageConverters(List<MessageConverter> messageConverters) {
+			@SuppressWarnings("removal")
 			MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter(this.objectMapper);
 			DefaultContentTypeResolver resolver = new DefaultContentTypeResolver();
 			resolver.setDefaultMimeType(MimeTypeUtils.APPLICATION_JSON);

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/data/rest/RepositoryRestMvcAutoConfigurationTests.java

@@ -161,6 +161,7 @@ class RepositoryRestMvcAutoConfigurationTests {
 	@Configuration(proxyBeanMethods = false)
 	@TestAutoConfigurationPackage(City.class)
 	@EnableWebMvc
+	@SuppressWarnings("removal")
 	static class TestConfigurationWithObjectMapperBuilder {
 
 		@Bean

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/hateoas/HypermediaAutoConfigurationTests.java

@@ -88,6 +88,7 @@ class HypermediaAutoConfigurationTests {
 	}
 
 	@Test
+	@SuppressWarnings("removal")
 	void whenUsingTheDefaultConfigurationThenMappingJacksonConverterCanWriteHateoasTypeAsApplicationJson() {
 		this.contextRunner.run((context) -> {
 			RequestMappingHandlerAdapter handlerAdapter = context.getBean(RequestMappingHandlerAdapter.class);
@@ -102,6 +103,7 @@ class HypermediaAutoConfigurationTests {
 	}
 
 	@Test
+	@SuppressWarnings("removal")
 	void whenHalIsNotTheDefaultJsonMediaTypeThenMappingJacksonConverterCannotWriteHateoasTypeAsApplicationJson() {
 		this.contextRunner.withPropertyValues("spring.hateoas.use-hal-as-default-json-media-type:false")
 			.run((context) -> {

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/http/HttpMessageConvertersAutoConfigurationTests.java

@@ -68,6 +68,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * @author Moritz Halbritter
  * @author Sebastien Deleuze
  */
+@SuppressWarnings("removal")
 class HttpMessageConvertersAutoConfigurationTests {
 
 	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/http/HttpMessageConvertersTests.java

@@ -44,6 +44,7 @@ import static org.mockito.Mockito.mock;
  * @author Dave Syer
  * @author Phillip Webb
  */
+@SuppressWarnings("removal")
 class HttpMessageConvertersTests {
 
 	@Test

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jackson/JacksonAutoConfigurationTests.java

@@ -92,6 +92,7 @@ import static org.mockito.Mockito.mock;
  * @author Ralf Ueberfuhr
  * @author Eddú Meléndez
  */
+@SuppressWarnings("removal")
 class JacksonAutoConfigurationTests {
 
 	protected final ApplicationContextRunner contextRunner = new ApplicationContextRunner()

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/rsocket/RSocketStrategiesAutoConfigurationTests.java

@@ -49,6 +49,7 @@ class RSocketStrategiesAutoConfigurationTests {
 			AutoConfigurations.of(JacksonAutoConfiguration.class, RSocketStrategiesAutoConfiguration.class));
 
 	@Test
+	@SuppressWarnings("removal")
 	void shouldCreateDefaultBeans() {
 		this.contextRunner.run((context) -> {
 			assertThat(context).getBeans(RSocketStrategies.class).hasSize(1);

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/servlet/WebMvcTypeExcludeFilterTests.java

@@ -186,6 +186,7 @@ class WebMvcTypeExcludeFilterTests {
 
 	}
 
+	@SuppressWarnings("removal")
 	static class ExampleMessageConverter extends MappingJackson2HttpMessageConverter {
 
 	}