Deprecate for removal Jackson 2 support

This commit deprecate for removal (likely in a future 7.x release) the Jackson 2 support in favor of the Jackson 3 one. Closes gh-33798
2025-05-13 16:37:54 +02:00
parent 6ae89ea397
commit 2a29e16456
60 changed files with 141 additions and 7 deletions
--- a/spring-web/src/jmh/java/org/springframework/http/codec/json/Jackson2JsonEncoderBenchmark.java
+++ b/spring-web/src/jmh/java/org/springframework/http/codec/json/Jackson2JsonEncoderBenchmark.java
@@ -43,6 +43,7 @@ import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 * @see AbstractJackson2Encoder
 */
@BenchmarkMode(Mode.Throughput)
+@SuppressWarnings("removal")
 public class Jackson2JsonEncoderBenchmark {


--- a/spring-web/src/main/java/org/springframework/http/codec/AbstractJacksonEncoder.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/AbstractJacksonEncoder.java
@@ -111,6 +111,7 @@ public abstract class AbstractJacksonEncoder extends JacksonCodecSupport impleme
 	}

 	@Override
+	@SuppressWarnings("removal")
 	public boolean canEncode(ResolvableType elementType, @Nullable MimeType mimeType) {
 		if (!supportsMimeType(mimeType)) {
 			return false;
--- a/spring-web/src/main/java/org/springframework/http/codec/cbor/Jackson2CborDecoder.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/cbor/Jackson2CborDecoder.java
@@ -40,7 +40,10 @@ import org.springframework.util.MimeType;
 * @since 5.2
 * @see Jackson2CborEncoder
 * @see <a href="https://github.com/spring-projects/spring-framework/issues/20513">Add CBOR support to WebFlux</a>
+ * @deprecated since 7.0 in favor of {@link JacksonCborDecoder}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2CborDecoder extends AbstractJackson2Decoder {

 	public Jackson2CborDecoder() {
--- a/spring-web/src/main/java/org/springframework/http/codec/cbor/Jackson2CborEncoder.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/cbor/Jackson2CborEncoder.java
@@ -41,7 +41,10 @@ import org.springframework.util.MimeType;
 * @since 5.2
 * @see Jackson2CborDecoder
 * @see <a href="https://github.com/spring-projects/spring-framework/issues/20513">Add CBOR support to WebFlux</a>
+ * @deprecated since 7.0 in favor of {@link JacksonCborEncoder}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2CborEncoder extends AbstractJackson2Encoder {

 	public Jackson2CborEncoder() {
--- a/spring-web/src/main/java/org/springframework/http/codec/json/AbstractJackson2Decoder.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/json/AbstractJackson2Decoder.java
@@ -47,6 +47,7 @@ import org.springframework.core.io.buffer.DataBufferLimitException;
 import org.springframework.core.io.buffer.DataBufferUtils;
 import org.springframework.core.io.buffer.PooledDataBuffer;
 import org.springframework.core.log.LogFormatUtils;
+import org.springframework.http.codec.AbstractJacksonDecoder;
 import org.springframework.http.codec.HttpMessageDecoder;
 import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.http.server.reactive.ServerHttpResponse;
@@ -61,7 +62,10 @@ import org.springframework.util.MimeType;
 * @author Arjen Poutsma
 * @since 5.0
 * @see <a href="https://github.com/FasterXML/jackson-core/issues/57" target="_blank">Add support for non-blocking ("async") JSON parsing</a>
+ * @deprecated since 7.0 in favor of {@link AbstractJacksonDecoder}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public abstract class AbstractJackson2Decoder extends Jackson2CodecSupport implements HttpMessageDecoder<Object> {

 	private int maxInMemorySize = 256 * 1024;
--- a/spring-web/src/main/java/org/springframework/http/codec/json/AbstractJackson2Encoder.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/json/AbstractJackson2Encoder.java
@@ -50,6 +50,7 @@ import org.springframework.core.io.buffer.DataBuffer;
 import org.springframework.core.io.buffer.DataBufferFactory;
 import org.springframework.core.log.LogFormatUtils;
 import org.springframework.http.MediaType;
+import org.springframework.http.codec.AbstractJacksonEncoder;
 import org.springframework.http.codec.HttpMessageEncoder;
 import org.springframework.http.converter.json.MappingJacksonValue;
 import org.springframework.http.server.reactive.ServerHttpRequest;
@@ -66,7 +67,10 @@ import org.springframework.util.MimeType;
 * @author Sebastien Deleuze
 * @author Arjen Poutsma
 * @since 5.0
+ * @deprecated since 7.0 in favor of {@link AbstractJacksonEncoder}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public abstract class AbstractJackson2Encoder extends Jackson2CodecSupport implements HttpMessageEncoder<Object> {

 	private static final byte[] NEWLINE_SEPARATOR = {'\n'};
--- a/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2CodecSupport.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2CodecSupport.java
@@ -40,6 +40,7 @@ import org.springframework.core.codec.Hints;
 import org.springframework.http.HttpLogging;
 import org.springframework.http.MediaType;
 import org.springframework.http.ProblemDetail;
+import org.springframework.http.codec.JacksonCodecSupport;
 import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.http.server.reactive.ServerHttpResponse;
 import org.springframework.util.Assert;
@@ -53,7 +54,9 @@ import org.springframework.util.ObjectUtils;
 * @author Sebastien Deleuze
 * @author Rossen Stoyanchev
 * @since 5.0
+ * @deprecated since 7.0 in favor of {@link JacksonCodecSupport}
 */
+@Deprecated(since = "7.0", forRemoval = true)
 public abstract class Jackson2CodecSupport {

 	/**
--- a/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2JsonDecoder.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2JsonDecoder.java
@@ -31,6 +31,7 @@ import org.springframework.core.ResolvableType;
 import org.springframework.core.codec.CharBufferDecoder;
 import org.springframework.core.io.buffer.DataBuffer;
 import org.springframework.core.io.buffer.DefaultDataBufferFactory;
+import org.springframework.http.codec.AbstractJacksonDecoder;
 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 import org.springframework.util.MimeType;
 import org.springframework.util.MimeTypeUtils;
@@ -43,7 +44,10 @@ import org.springframework.util.MimeTypeUtils;
 * @author Rossen Stoyanchev
 * @since 5.0
 * @see Jackson2JsonEncoder
+ * @deprecated since 7.0 in favor of {@link AbstractJacksonDecoder}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2JsonDecoder extends AbstractJackson2Decoder {

 	private static final CharBufferDecoder CHAR_BUFFER_DECODER = CharBufferDecoder.textPlainOnly(Arrays.asList(",", "\n"), false);
--- a/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2JsonEncoder.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2JsonEncoder.java
@@ -44,7 +44,10 @@ import org.springframework.util.MimeType;
 * @author Arjen Poutsma
 * @since 5.0
 * @see Jackson2JsonDecoder
+ * @deprecated since 7.0 in favor of {@link JacksonJsonEncoder}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2JsonEncoder extends AbstractJackson2Encoder {

 	private static final List<MimeType> problemDetailMimeTypes =
--- a/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2SmileDecoder.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2SmileDecoder.java
@@ -19,6 +19,7 @@ package org.springframework.http.codec.json;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.dataformat.smile.SmileFactory;

+import org.springframework.http.codec.smile.JacksonSmileDecoder;
 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 import org.springframework.util.Assert;
 import org.springframework.util.MimeType;
@@ -31,7 +32,10 @@ import org.springframework.util.MimeType;
 * @author Rossen Stoyanchev
 * @since 5.0
 * @see Jackson2JsonEncoder
+ * @deprecated since 7.0 in favor of {@link JacksonSmileDecoder}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2SmileDecoder extends AbstractJackson2Decoder {

 	private static final MimeType[] DEFAULT_SMILE_MIME_TYPES = new MimeType[] {
--- a/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2SmileEncoder.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2SmileEncoder.java
@@ -25,6 +25,7 @@ import org.jspecify.annotations.Nullable;
 import reactor.core.publisher.Flux;

 import org.springframework.http.MediaType;
+import org.springframework.http.codec.smile.JacksonSmileEncoder;
 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 import org.springframework.util.Assert;
 import org.springframework.util.MimeType;
@@ -37,7 +38,10 @@ import org.springframework.util.MimeType;
 * @author Sebastien Deleuze
 * @since 5.0
 * @see Jackson2SmileDecoder
+ * @deprecated since 7.0 in favor of {@link JacksonSmileEncoder}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2SmileEncoder extends AbstractJackson2Encoder {

 	private static final MimeType[] DEFAULT_SMILE_MIME_TYPES = new MimeType[] {
--- a/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2Tokenizer.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2Tokenizer.java
@@ -50,7 +50,9 @@ import org.springframework.core.io.buffer.DataBufferUtils;
 * @author Rossen Stoyanchev
 * @author Juergen Hoeller
 * @since 5.0
+ * @deprecated since 7.0 in favor of {@code org.springframework.http.codec.JacksonTokenizer}
 */
+@Deprecated(since = "7.0", forRemoval = true)
 final class Jackson2Tokenizer {

 	private final JsonParser parser;
--- a/spring-web/src/main/java/org/springframework/http/codec/support/BaseDefaultCodecs.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/support/BaseDefaultCodecs.java
@@ -486,6 +486,7 @@ class BaseDefaultCodecs implements CodecConfigurer.DefaultCodecs, CodecConfigure
 	 * if configured by the application, to the given codec , including any
 	 * codec it contains.
 	 */
+	@SuppressWarnings("removal")
 	private void initCodec(@Nullable Object codec) {
 		if (codec instanceof DecoderHttpMessageReader<?> decoderHttpMessageReader) {
 			codec = decoderHttpMessageReader.getDecoder();
@@ -612,6 +613,7 @@ class BaseDefaultCodecs implements CodecConfigurer.DefaultCodecs, CodecConfigure
 	 * Reset and initialize object readers.
 	 * @since 5.3.3
 	 */
+	@SuppressWarnings("removal")
 	protected void initObjectReaders() {
 		this.objectReaders.clear();
 		if (!this.registerDefaults) {
@@ -760,6 +762,7 @@ class BaseDefaultCodecs implements CodecConfigurer.DefaultCodecs, CodecConfigure
 	/**
 	 * Return "base" object writers only, i.e. common to client and server.
 	 */
+	@SuppressWarnings("removal")
 	final List<HttpMessageWriter<?>> getBaseObjectWriters() {
 		List<HttpMessageWriter<?>> writers = new ArrayList<>();
 		if (kotlinSerializationCborPresent) {
@@ -839,6 +842,7 @@ class BaseDefaultCodecs implements CodecConfigurer.DefaultCodecs, CodecConfigure
 		return this.jacksonJsonDecoder;
 	}

+	@SuppressWarnings("removal")
 	protected Decoder<?> getJackson2JsonDecoder() {
 		if (this.jackson2JsonDecoder == null) {
 			this.jackson2JsonDecoder = new Jackson2JsonDecoder();
@@ -853,6 +857,7 @@ class BaseDefaultCodecs implements CodecConfigurer.DefaultCodecs, CodecConfigure
 		return this.jacksonJsonEncoder;
 	}

+	@SuppressWarnings("removal")
 	protected Encoder<?> getJackson2JsonEncoder() {
 		if (this.jackson2JsonEncoder == null) {
 			this.jackson2JsonEncoder = new Jackson2JsonEncoder();
--- a/spring-web/src/main/java/org/springframework/http/converter/AbstractJacksonHttpMessageConverter.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/AbstractJacksonHttpMessageConverter.java
@@ -271,6 +271,7 @@ public abstract class AbstractJacksonHttpMessageConverter extends AbstractSmartH
 	}

 	@Override
+	@SuppressWarnings("removal")
 	public boolean canWrite(Class<?> clazz, @Nullable MediaType mediaType) {
 		if (!canWrite(mediaType)) {
 			return false;
@@ -328,6 +329,7 @@ public abstract class AbstractJacksonHttpMessageConverter extends AbstractSmartH
 		return readJavaType(javaType, inputMessage, null);
 	}

+	@SuppressWarnings("removal")
 	private Object readJavaType(JavaType javaType, HttpInputMessage inputMessage, @Nullable Map<String, Object> hints) throws IOException {
 		MediaType contentType = inputMessage.getHeaders().getContentType();
 		Charset charset = getCharset(contentType);
--- a/spring-web/src/main/java/org/springframework/http/converter/cbor/MappingJackson2CborHttpMessageConverter.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/cbor/MappingJackson2CborHttpMessageConverter.java
@@ -39,7 +39,10 @@ import org.springframework.util.Assert;
 *
 * @author Sebastien Deleuze
 * @since 5.0
+ * @deprecated since 7.0 in favor of {@link JacksonCborHttpMessageConverter}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class MappingJackson2CborHttpMessageConverter extends AbstractJackson2HttpMessageConverter {

 	/**
--- a/spring-web/src/main/java/org/springframework/http/converter/json/AbstractJackson2HttpMessageConverter.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/AbstractJackson2HttpMessageConverter.java
@@ -57,6 +57,7 @@ import org.springframework.http.HttpOutputMessage;
 import org.springframework.http.MediaType;
 import org.springframework.http.ProblemDetail;
 import org.springframework.http.converter.AbstractGenericHttpMessageConverter;
+import org.springframework.http.converter.AbstractJacksonHttpMessageConverter;
 import org.springframework.http.converter.HttpMessageConversionException;
 import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.HttpMessageNotReadableException;
@@ -78,7 +79,10 @@ import org.springframework.util.TypeUtils;
 * @author Sam Brannen
 * @since 4.1
 * @see MappingJackson2HttpMessageConverter
+ * @deprecated since 7.0 in favor of {@link AbstractJacksonHttpMessageConverter}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public abstract class AbstractJackson2HttpMessageConverter extends AbstractGenericHttpMessageConverter<Object> {

 	private static final Map<String, JsonEncoding> ENCODINGS;
--- a/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilder.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilder.java
@@ -100,8 +100,10 @@ import org.springframework.util.xml.StaxUtils;
 * @since 4.1.1
 * @see #build()
 * @see #configure(ObjectMapper)
- * @see Jackson2ObjectMapperFactoryBean
+ * @deprecated since 7.0 in favor using directly Jackson 3 builders like {@link tools.jackson.databind.json.JsonMapper#builder}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2ObjectMapperBuilder {

 	private static final boolean jackson2XmlPresent = ClassUtils.isPresent(
--- a/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBean.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBean.java
@@ -136,7 +136,10 @@ import org.springframework.context.ApplicationContextAware;
 * @author Tadaya Tsuyukubo
 * @author Sebastien Deleuze
 * @since 3.2
+ * @deprecated since 7.0 in favor of using directly Jackson 3 converters default constructor
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2ObjectMapperFactoryBean implements FactoryBean<ObjectMapper>, BeanClassLoaderAware,
 		ApplicationContextAware, InitializingBean {

--- a/spring-web/src/main/java/org/springframework/http/converter/json/JacksonModulesRuntimeHints.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/JacksonModulesRuntimeHints.java
@@ -35,6 +35,7 @@ import org.springframework.aot.hint.TypeHint.Builder;
 */
 class JacksonModulesRuntimeHints implements RuntimeHintsRegistrar {

+	@SuppressWarnings("removal")
 	private static final Consumer<Builder> asJacksonModule = builder ->
 			builder.onReachableType(Jackson2ObjectMapperBuilder.class)
 					.withMembers(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS);
--- a/spring-web/src/main/java/org/springframework/http/converter/json/MappingJackson2HttpMessageConverter.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/MappingJackson2HttpMessageConverter.java
@@ -44,7 +44,10 @@ import org.springframework.http.MediaType;
 * @author Juergen Hoeller
 * @author Sebastien Deleuze
 * @since 3.1.2
+ * @deprecated since 7.0 in favor of {@link JacksonJsonHttpMessageConverter}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class MappingJackson2HttpMessageConverter extends AbstractJackson2HttpMessageConverter {

 	private static final List<MediaType> problemDetailMediaTypes =
--- a/spring-web/src/main/java/org/springframework/http/converter/json/MappingJacksonInputMessage.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/MappingJacksonInputMessage.java
@@ -30,7 +30,9 @@ import org.springframework.http.HttpInputMessage;
 *
 * @author Sebastien Deleuze
 * @since 4.2
+ * @deprecated since 7.0 in favor of using {@link org.springframework.http.converter.SmartHttpMessageConverter} hints
 */
+@Deprecated(since = "7.0", forRemoval = true)
 public class MappingJacksonInputMessage implements HttpInputMessage {

 	private final InputStream body;
--- a/spring-web/src/main/java/org/springframework/http/converter/json/MappingJacksonValue.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/MappingJacksonValue.java
@@ -33,7 +33,9 @@ import org.jspecify.annotations.Nullable;
 *
 * @author Rossen Stoyanchev
 * @since 4.1
+ * @deprecated since 7.0 in favor of using {@link org.springframework.http.converter.SmartHttpMessageConverter} hints
 */
+@Deprecated(since = "7.0", forRemoval = true)
 public class MappingJacksonValue {

 	private Object value;
--- a/spring-web/src/main/java/org/springframework/http/converter/json/SpringHandlerInstantiator.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/SpringHandlerInstantiator.java
@@ -38,7 +38,7 @@ import org.springframework.context.ApplicationContext;
 import org.springframework.util.Assert;

 /**
- * Allows for creating Jackson ({@link JsonSerializer}, {@link JsonDeserializer},
+ * Allows for creating Jackson 2.x ({@link JsonSerializer}, {@link JsonDeserializer},
 * {@link KeyDeserializer}, {@link TypeResolverBuilder}, {@link TypeIdResolver})
 * beans with autowiring against a Spring {@link ApplicationContext}.
 *
@@ -53,7 +53,9 @@ import org.springframework.util.Assert;
 * @see Jackson2ObjectMapperBuilder#handlerInstantiator(HandlerInstantiator)
 * @see ApplicationContext#getAutowireCapableBeanFactory()
 * @see HandlerInstantiator
+ * @deprecated since 7.0 in favor of {@link org.springframework.http.support.JacksonHandlerInstantiator}
 */
+@Deprecated(since = "7.0", forRemoval = true)
 public class SpringHandlerInstantiator extends HandlerInstantiator {

 	private final AutowireCapableBeanFactory beanFactory;
--- a/spring-web/src/main/java/org/springframework/http/converter/smile/MappingJackson2SmileHttpMessageConverter.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/smile/MappingJackson2SmileHttpMessageConverter.java
@@ -37,7 +37,10 @@ import org.springframework.util.Assert;
 *
 * @author Sebastien Deleuze
 * @since 5.0
+ * @deprecated since 7.0 in favor of {@link JacksonSmileHttpMessageConverter}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class MappingJackson2SmileHttpMessageConverter extends AbstractJackson2HttpMessageConverter {

 	/**
--- a/spring-web/src/main/java/org/springframework/http/converter/support/AllEncompassingFormHttpMessageConverter.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/support/AllEncompassingFormHttpMessageConverter.java
@@ -101,6 +101,7 @@ public class AllEncompassingFormHttpMessageConverter extends FormHttpMessageConv
 	}


+	@SuppressWarnings("removal")
 	public AllEncompassingFormHttpMessageConverter() {

 		if (jaxb2Present && !jacksonXmlPresent && !jackson2XmlPresent) {
--- a/spring-web/src/main/java/org/springframework/http/converter/xml/MappingJackson2XmlHttpMessageConverter.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/xml/MappingJackson2XmlHttpMessageConverter.java
@@ -41,7 +41,10 @@ import org.springframework.util.Assert;
 *
 * @author Sebastien Deleuze
 * @since 4.1
+ * @deprecated since 7.0 in favor of {@link JacksonXmlHttpMessageConverter}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class MappingJackson2XmlHttpMessageConverter extends AbstractJackson2HttpMessageConverter {

 	private static final List<MediaType> problemDetailMediaTypes =
--- a/spring-web/src/main/java/org/springframework/http/converter/yaml/MappingJackson2YamlHttpMessageConverter.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/yaml/MappingJackson2YamlHttpMessageConverter.java
@@ -39,7 +39,10 @@ import org.springframework.util.Assert;
 *
 * @author Hyoungjune Kim
 * @since 6.2
+ * @deprecated since 7.0 in favor of {@link JacksonYamlHttpMessageConverter}
 */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class MappingJackson2YamlHttpMessageConverter extends AbstractJackson2HttpMessageConverter {

 	/**
--- a/spring-web/src/main/java/org/springframework/web/client/DefaultRestClientBuilder.java
+++ b/spring-web/src/main/java/org/springframework/web/client/DefaultRestClientBuilder.java
@@ -469,6 +469,7 @@ final class DefaultRestClientBuilder implements RestClient.Builder {
 		return this;
 	}

+	@SuppressWarnings("removal")
 	private List<HttpMessageConverter<?>> initMessageConverters() {
 		if (this.messageConverters == null) {
 			this.messageConverters = new ArrayList<>();
--- a/spring-web/src/main/java/org/springframework/web/client/RestTemplate.java
+++ b/spring-web/src/main/java/org/springframework/web/client/RestTemplate.java
@@ -202,6 +202,7 @@ public class RestTemplate extends InterceptingHttpAccessor implements RestOperat
 	 * Create a new instance with default settings.
 	 * Default {@link HttpMessageConverter HttpMessageConverters} are initialized.
 	 */
+	@SuppressWarnings("removal")
 	public RestTemplate() {
 		this.messageConverters.add(new ByteArrayHttpMessageConverter());
 		this.messageConverters.add(new StringHttpMessageConverter());
--- a/spring-web/src/test/java/org/springframework/http/codec/cbor/Jackson2CborDecoderTests.java
+++ b/spring-web/src/test/java/org/springframework/http/codec/cbor/Jackson2CborDecoderTests.java
@@ -40,6 +40,7 @@ import static org.springframework.http.MediaType.APPLICATION_JSON;
 *
 * @author Sebastien Deleuze
 */
+@SuppressWarnings("removal")
 class Jackson2CborDecoderTests extends AbstractDecoderTests<Jackson2CborDecoder> {

 	private static final MimeType CBOR_MIME_TYPE = new MimeType("application", "cbor");
--- a/spring-web/src/test/java/org/springframework/http/codec/cbor/Jackson2CborEncoderTests.java
+++ b/spring-web/src/test/java/org/springframework/http/codec/cbor/Jackson2CborEncoderTests.java
@@ -43,6 +43,7 @@ import static org.springframework.http.MediaType.APPLICATION_XML;
 *
 * @author Sebastien Deleuze
 */
+@SuppressWarnings("removal")
 class Jackson2CborEncoderTests extends AbstractLeakCheckingTests {

 	private static final MimeType CBOR_MIME_TYPE = new MimeType("application", "cbor");
--- a/spring-web/src/test/java/org/springframework/http/codec/json/Jackson2JsonDecoderTests.java
+++ b/spring-web/src/test/java/org/springframework/http/codec/json/Jackson2JsonDecoderTests.java
@@ -62,6 +62,7 @@ import static org.springframework.http.codec.json.Jackson2CodecSupport.JSON_VIEW
 * @author Sebastien Deleuze
 * @author Rossen Stoyanchev
 */
+@SuppressWarnings("removal")
 class Jackson2JsonDecoderTests extends AbstractDecoderTests<Jackson2JsonDecoder> {

 	private final Pojo pojo1 = new Pojo("f1", "b1");
--- a/spring-web/src/test/java/org/springframework/http/codec/json/Jackson2JsonEncoderTests.java
+++ b/spring-web/src/test/java/org/springframework/http/codec/json/Jackson2JsonEncoderTests.java
@@ -50,12 +50,12 @@ import static org.springframework.http.MediaType.APPLICATION_JSON;
 import static org.springframework.http.MediaType.APPLICATION_NDJSON;
 import static org.springframework.http.MediaType.APPLICATION_OCTET_STREAM;
 import static org.springframework.http.MediaType.APPLICATION_XML;
-import static org.springframework.http.codec.json.Jackson2CodecSupport.JSON_VIEW_HINT;

 /**
 * Tests for {@link Jackson2JsonEncoder}.
 * @author Sebastien Deleuze
 */
+@SuppressWarnings("removal")
 class Jackson2JsonEncoderTests extends AbstractEncoderTests<Jackson2JsonEncoder> {

 	public Jackson2JsonEncoderTests() {
@@ -201,7 +201,8 @@ class Jackson2JsonEncoderTests extends AbstractEncoderTests<Jackson2JsonEncoder>
 		Mono<JacksonViewBean> input = Mono.just(bean);

 		ResolvableType type = ResolvableType.forClass(JacksonViewBean.class);
-		Map<String, Object> hints = singletonMap(JSON_VIEW_HINT, MyJacksonView1.class);
+		Map<String, Object> hints = singletonMap(org.springframework.http.codec.json.Jackson2CodecSupport.JSON_VIEW_HINT,
+				MyJacksonView1.class);

 		testEncode(input, type, null, hints, step -> step
 				.consumeNextWith(expectString("{\"withView1\":\"with\"}"))
@@ -218,7 +219,8 @@ class Jackson2JsonEncoderTests extends AbstractEncoderTests<Jackson2JsonEncoder>
 		Mono<JacksonViewBean> input = Mono.just(bean);

 		ResolvableType type = ResolvableType.forClass(JacksonViewBean.class);
-		Map<String, Object> hints = singletonMap(JSON_VIEW_HINT, MyJacksonView3.class);
+		Map<String, Object> hints = singletonMap(org.springframework.http.codec.json.Jackson2CodecSupport.JSON_VIEW_HINT,
+				MyJacksonView3.class);

 		testEncode(input, type, null, hints, step -> step
 				.consumeNextWith(expectString("{\"withoutView\":\"without\"}"))
--- a/spring-web/src/test/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilderTests.java
+++ b/spring-web/src/test/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilderTests.java
@@ -98,7 +98,7 @@ import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException
 * @author Eddú Meléndez
 * @author Hyoungjune Kim
 */
-@SuppressWarnings("deprecation")
+@SuppressWarnings({"deprecation", "removal"})
 class Jackson2ObjectMapperBuilderTests {

 	private static final String DATE_FORMAT = "yyyy-MM-dd";
--- a/spring-web/src/test/java/org/springframework/http/converter/json/MappingJackson2HttpMessageConverterTests.java
+++ b/spring-web/src/test/java/org/springframework/http/converter/json/MappingJackson2HttpMessageConverterTests.java
@@ -61,6 +61,7 @@ import static org.assertj.core.api.Assertions.within;
 * @author Sebastien Deleuze
 * @author Juergen Hoeller
 */
+@SuppressWarnings("removal")
 class MappingJackson2HttpMessageConverterTests {

 	private final MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
--- a/spring-web/src/test/java/org/springframework/web/client/RestTemplateIntegrationTests.java
+++ b/spring-web/src/test/java/org/springframework/web/client/RestTemplateIntegrationTests.java
@@ -409,6 +409,7 @@ class RestTemplateIntegrationTests extends AbstractMockWebServerTests {

 	@ParameterizedRestTemplateTest
 	@Disabled("Use RestClient + upcoming hint management instead")
+	@SuppressWarnings("removal")
 	void jsonPostForObjectWithJacksonJsonView(ClientHttpRequestFactory clientHttpRequestFactory) {
 		setUpClient(clientHttpRequestFactory);