Introduce Jackson 3 support for converters

This commit introduces Jackson 3 SmartHttpMessageConverter based
variants of the following Jackson 2 classes (and related dependent classes).

org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter ->
org.springframework.http.converter.AbstractJacksonHttpMessageConverter

MappingJackson2HttpMessageConverter -> JacksonJsonHttpMessageConverter
MappingJackson2SmileHttpMessageConverter -> JacksonSmileHttpMessageConverter
MappingJackson2CborHttpMessageConverter -> JacksonCborHttpMessageConverter
MappingJackson2XmlHttpMessageConverter -> JacksonXmlHttpMessageConverter
MappingJackson2YamlHttpMessageConverter -> JacksonYamlHttpMessageConverter

They use hints instead of MappingJacksonValue and MappingJacksonInputMessage
to support `@JsonView` and FilterProvider.

Jackson 3 support is configured if found in the classpath otherwise
fallback to Jackson 2.

JacksonHandlerInstantiator needs to be enabled explicitly if needed.

See gh-33798

spring-web/src/main/java/org/springframework/http/converter/AbstractJacksonHttpMessageConverter.java

@@ -0,0 +1,509 @@
+/*
+ * Copyright 2002-2025 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.http.converter;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.Reader;
+import java.lang.reflect.Type;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.function.Consumer;
+
+import com.fasterxml.jackson.annotation.JsonView;
+import org.jspecify.annotations.Nullable;
+import tools.jackson.core.JacksonException;
+import tools.jackson.core.JsonEncoding;
+import tools.jackson.core.JsonGenerator;
+import tools.jackson.core.PrettyPrinter;
+import tools.jackson.core.util.DefaultIndenter;
+import tools.jackson.core.util.DefaultPrettyPrinter;
+import tools.jackson.databind.JacksonModule;
+import tools.jackson.databind.JavaType;
+import tools.jackson.databind.ObjectMapper;
+import tools.jackson.databind.ObjectReader;
+import tools.jackson.databind.ObjectWriter;
+import tools.jackson.databind.SerializationConfig;
+import tools.jackson.databind.SerializationFeature;
+import tools.jackson.databind.cfg.MapperBuilder;
+import tools.jackson.databind.exc.InvalidDefinitionException;
+import tools.jackson.databind.ser.FilterProvider;
+
+import org.springframework.core.GenericTypeResolver;
+import org.springframework.core.MethodParameter;
+import org.springframework.core.ResolvableType;
+import org.springframework.http.HttpInputMessage;
+import org.springframework.http.HttpOutputMessage;
+import org.springframework.http.MediaType;
+import org.springframework.http.ProblemDetail;
+import org.springframework.http.converter.json.JacksonJsonHttpMessageConverter;
+import org.springframework.http.converter.json.MappingJacksonInputMessage;
+import org.springframework.http.converter.json.MappingJacksonValue;
+import org.springframework.util.Assert;
+import org.springframework.util.CollectionUtils;
+import org.springframework.util.StreamUtils;
+import org.springframework.util.TypeUtils;
+
+/**
+ * Abstract base class for Jackson based and content type independent
+ * {@link HttpMessageConverter} implementations.
+ *
+ * <p>The following hint entries are supported:
+ * <ul>
+ *     <li>A JSON view with a <code>com.fasterxml.jackson.annotation.JsonView</code>
+ *         key and the class name of the JSON view as value.</li>
+ *     <li>A filter provider with a <code>tools.jackson.databind.ser.FilterProvider</code>
+ *         key and the filter provider class name as value.</li>
+ * </ul>
+ *
+ * @author Sebastien Deleuze
+ * @since 7.0
+ * @see JacksonJsonHttpMessageConverter
+ */
+public abstract class AbstractJacksonHttpMessageConverter extends AbstractSmartHttpMessageConverter<Object> {
+
+	private static final String JSON_VIEW_HINT = JsonView.class.getName();
+
+	private static final String FILTER_PROVIDER_HINT = FilterProvider.class.getName();
+
+	private static final Map<String, JsonEncoding> ENCODINGS;
+
+	private static volatile @Nullable List<JacksonModule> modules = null;
+
+	static {
+		ENCODINGS = CollectionUtils.newHashMap(JsonEncoding.values().length);
+		for (JsonEncoding encoding : JsonEncoding.values()) {
+			ENCODINGS.put(encoding.getJavaName(), encoding);
+		}
+		ENCODINGS.put("US-ASCII", JsonEncoding.UTF8);
+	}
+
+
+	protected final ObjectMapper defaultObjectMapper;
+
+	private @Nullable Map<Class<?>, Map<MediaType, ObjectMapper>> objectMapperRegistrations;
+
+	private final @Nullable PrettyPrinter ssePrettyPrinter;
+
+
+	/**
+	 * Construct a new instance with a provided {@link MapperBuilder builder}
+	 * customized with the {@link tools.jackson.databind.JacksonModule}s found
+	 * by {@link MapperBuilder#findModules(ClassLoader)}.
+	 */
+	private AbstractJacksonHttpMessageConverter(MapperBuilder<?, ?> builder) {
+		this.defaultObjectMapper = builder.addModules(initModules()).build();
+		this.ssePrettyPrinter = initSsePrettyPrinter();
+	}
+
+	/**
+	 * Construct a new instance with the provided {@link MapperBuilder builder}
+	 * customized with the {@link tools.jackson.databind.JacksonModule}s found
+	 * by {@link MapperBuilder#findModules(ClassLoader)} and {@link MediaType}.
+	 */
+	protected AbstractJacksonHttpMessageConverter(MapperBuilder<?, ?> builder, MediaType supportedMediaType) {
+		this(builder);
+		setSupportedMediaTypes(Collections.singletonList(supportedMediaType));
+	}
+
+	/**
+	 * Construct a new instance with the provided {@link MapperBuilder builder}
+	 * customized with the {@link tools.jackson.databind.JacksonModule}s found
+	 * by {@link MapperBuilder#findModules(ClassLoader)} and {@link MediaType}s.
+	 */
+	protected AbstractJacksonHttpMessageConverter(MapperBuilder<?, ?> builder, MediaType... supportedMediaTypes) {
+		this(builder);
+		setSupportedMediaTypes(Arrays.asList(supportedMediaTypes));
+	}
+
+	/**
+	 * Construct a new instance with a provided {@link ObjectMapper}.
+	 */
+	protected AbstractJacksonHttpMessageConverter(ObjectMapper objectMapper) {
+		this.defaultObjectMapper = objectMapper;
+		this.ssePrettyPrinter = initSsePrettyPrinter();
+	}
+
+	/**
+	 * Construct a new instance with the provided {@link ObjectMapper} and {@link MediaType}.
+	 */
+	protected AbstractJacksonHttpMessageConverter(ObjectMapper objectMapper, MediaType supportedMediaType) {
+		this(objectMapper);
+		setSupportedMediaTypes(Collections.singletonList(supportedMediaType));
+	}
+
+	/**
+	 * Construct a new instance with the provided {@link ObjectMapper} and {@link MediaType}s.
+	 */
+	protected AbstractJacksonHttpMessageConverter(ObjectMapper objectMapper, MediaType... supportedMediaTypes) {
+		this(objectMapper);
+		setSupportedMediaTypes(Arrays.asList(supportedMediaTypes));
+	}
+
+	private List<JacksonModule> initModules() {
+		if (modules == null) {
+			modules = MapperBuilder.findModules(AbstractJacksonHttpMessageConverter.class.getClassLoader());
+
+		}
+		return Objects.requireNonNull(modules);
+	}
+
+	private PrettyPrinter initSsePrettyPrinter() {
+		DefaultPrettyPrinter prettyPrinter = new DefaultPrettyPrinter();
+		prettyPrinter.indentObjectsWith(new DefaultIndenter("  ", "\ndata:"));
+		return prettyPrinter;
+	}
+
+	@Override
+	public void setSupportedMediaTypes(List<MediaType> supportedMediaTypes) {
+		super.setSupportedMediaTypes(supportedMediaTypes);
+	}
+
+	/**
+	 * Return the main {@code ObjectMapper} in use.
+	 */
+	public ObjectMapper getObjectMapper() {
+		return this.defaultObjectMapper;
+	}
+
+	/**
+	 * Configure the {@link ObjectMapper} instances to use for the given
+	 * {@link Class}. This is useful when you want to deviate from the
+	 * {@link #getObjectMapper() default} ObjectMapper or have the
+	 * {@code ObjectMapper} vary by {@code MediaType}.
+	 * <p><strong>Note:</strong> Use of this method effectively turns off use of
+	 * the default {@link #getObjectMapper() ObjectMapper} and
+	 * {@link #setSupportedMediaTypes(List) supportedMediaTypes} for the given
+	 * class. Therefore it is important for the mappings configured here to
+	 * {@link MediaType#includes(MediaType) include} every MediaType that must
+	 * be supported for the given class.
+	 * @param clazz the type of Object to register ObjectMapper instances for
+	 * @param registrar a consumer to populate or otherwise update the
+	 * MediaType-to-ObjectMapper associations for the given Class
+	 */
+	public void registerObjectMappersForType(Class<?> clazz, Consumer<Map<MediaType, ObjectMapper>> registrar) {
+		if (this.objectMapperRegistrations == null) {
+			this.objectMapperRegistrations = new LinkedHashMap<>();
+		}
+		Map<MediaType, ObjectMapper> registrations =
+				this.objectMapperRegistrations.computeIfAbsent(clazz, c -> new LinkedHashMap<>());
+		registrar.accept(registrations);
+	}
+
+	/**
+	 * Return ObjectMapper registrations for the given class, if any.
+	 * @param clazz the class to look up for registrations for
+	 * @return a map with registered MediaType-to-ObjectMapper registrations,
+	 * or empty if in case of no registrations for the given class.
+	 */
+	public Map<MediaType, ObjectMapper> getObjectMappersForType(Class<?> clazz) {
+		for (Map.Entry<Class<?>, Map<MediaType, ObjectMapper>> entry : getObjectMapperRegistrations().entrySet()) {
+			if (entry.getKey().isAssignableFrom(clazz)) {
+				return entry.getValue();
+			}
+		}
+		return Collections.emptyMap();
+	}
+
+	@Override
+	public List<MediaType> getSupportedMediaTypes(Class<?> clazz) {
+		List<MediaType> result = null;
+		for (Map.Entry<Class<?>, Map<MediaType, ObjectMapper>> entry : getObjectMapperRegistrations().entrySet()) {
+			if (entry.getKey().isAssignableFrom(clazz)) {
+				result = (result != null ? result : new ArrayList<>(entry.getValue().size()));
+				result.addAll(entry.getValue().keySet());
+			}
+		}
+		if (!CollectionUtils.isEmpty(result)) {
+			return result;
+		}
+		return (ProblemDetail.class.isAssignableFrom(clazz) ?
+				getMediaTypesForProblemDetail() : getSupportedMediaTypes());
+	}
+
+	private Map<Class<?>, Map<MediaType, ObjectMapper>> getObjectMapperRegistrations() {
+		return (this.objectMapperRegistrations != null ? this.objectMapperRegistrations : Collections.emptyMap());
+	}
+
+	/**
+	 * Return the supported media type(s) for {@link ProblemDetail}.
+	 * By default, an empty list, unless overridden in subclasses.
+	 */
+	protected List<MediaType> getMediaTypesForProblemDetail() {
+		return Collections.emptyList();
+	}
+
+
+	@Override
+	public boolean canRead(ResolvableType type, @Nullable MediaType mediaType) {
+		if (!canRead(mediaType)) {
+			return false;
+		}
+		Class<?> clazz = type.resolve();
+		if (clazz == null) {
+			return false;
+		}
+		return this.objectMapperRegistrations == null || selectObjectMapper(clazz, mediaType) != null;
+	}
+
+	@Override
+	public boolean canWrite(Class<?> clazz, @Nullable MediaType mediaType) {
+		if (!canWrite(mediaType)) {
+			return false;
+		}
+		if (mediaType != null && mediaType.getCharset() != null) {
+			Charset charset = mediaType.getCharset();
+			if (!ENCODINGS.containsKey(charset.name())) {
+				return false;
+			}
+		}
+		if (MappingJacksonValue.class.isAssignableFrom(clazz)) {
+			throw new UnsupportedOperationException("MappingJacksonValue is not supported, use hints instead");
+		}
+		return this.objectMapperRegistrations == null || selectObjectMapper(clazz, mediaType) != null;
+	}
+
+	/**
+	 * Select an ObjectMapper to use, either the main ObjectMapper or another
+	 * if the handling for the given Class has been customized through
+	 * {@link #registerObjectMappersForType(Class, Consumer)}.
+	 */
+	private @Nullable ObjectMapper selectObjectMapper(Class<?> targetType, @Nullable MediaType targetMediaType) {
+		if (targetMediaType == null || CollectionUtils.isEmpty(this.objectMapperRegistrations)) {
+			return this.defaultObjectMapper;
+		}
+		for (Map.Entry<Class<?>, Map<MediaType, ObjectMapper>> typeEntry : getObjectMapperRegistrations().entrySet()) {
+			if (typeEntry.getKey().isAssignableFrom(targetType)) {
+				for (Map.Entry<MediaType, ObjectMapper> objectMapperEntry : typeEntry.getValue().entrySet()) {
+					if (objectMapperEntry.getKey().includes(targetMediaType)) {
+						return objectMapperEntry.getValue();
+					}
+				}
+				// No matching registrations
+				return null;
+			}
+		}
+		// No registrations
+		return this.defaultObjectMapper;
+	}
+
+	@Override
+	public Object read(ResolvableType type, HttpInputMessage inputMessage, @Nullable Map<String, Object> hints)
+			throws IOException, HttpMessageNotReadableException {
+
+		Class<?> contextClass = (type.getSource() instanceof MethodParameter parameter ? parameter.getContainingClass() : null);
+		JavaType javaType = getJavaType(type.getType(), contextClass);
+		return readJavaType(javaType, inputMessage, hints);
+	}
+
+	@Override
+	protected Object readInternal(Class<?> clazz, HttpInputMessage inputMessage)
+			throws IOException, HttpMessageNotReadableException {
+
+		JavaType javaType = getJavaType(clazz, null);
+		return readJavaType(javaType, inputMessage, null);
+	}
+
+	private Object readJavaType(JavaType javaType, HttpInputMessage inputMessage, @Nullable Map<String, Object> hints) throws IOException {
+		MediaType contentType = inputMessage.getHeaders().getContentType();
+		Charset charset = getCharset(contentType);
+
+		ObjectMapper objectMapper = selectObjectMapper(javaType.getRawClass(), contentType);
+		Assert.state(objectMapper != null, () -> "No ObjectMapper for " + javaType);
+
+		boolean isUnicode = ENCODINGS.containsKey(charset.name()) ||
+				"UTF-16".equals(charset.name()) ||
+				"UTF-32".equals(charset.name());
+		try {
+			InputStream inputStream = StreamUtils.nonClosing(inputMessage.getBody());
+			if (inputMessage instanceof MappingJacksonInputMessage) {
+				throw new UnsupportedOperationException("MappingJacksonInputMessage is not supported, use hints instead");
+			}
+			ObjectReader objectReader = objectMapper.readerFor(javaType);
+			if (hints != null && hints.containsKey(JSON_VIEW_HINT)) {
+				objectReader = objectReader.withView((Class<?>) hints.get(JSON_VIEW_HINT));
+			}
+			objectReader = customizeReader(objectReader, javaType);
+			if (isUnicode) {
+				return objectReader.readValue(inputStream);
+			}
+			else {
+				Reader reader = new InputStreamReader(inputStream, charset);
+				return objectReader.readValue(reader);
+			}
+		}
+		catch (InvalidDefinitionException ex) {
+			throw new HttpMessageConversionException("Type definition error: " + ex.getType(), ex);
+		}
+		catch (JacksonException ex) {
+			throw new HttpMessageNotReadableException("JSON parse error: " + ex.getOriginalMessage(), ex, inputMessage);
+		}
+	}
+
+	/**
+	 * Subclasses can use this method to customize {@link ObjectReader} used
+	 * for reading values.
+	 * @param reader the reader instance to customize
+	 * @param javaType the target type of element values to read to
+	 * @return the customized {@link ObjectReader}
+	 */
+	protected ObjectReader customizeReader(ObjectReader reader, JavaType javaType) {
+		return reader;
+	}
+
+	/**
+	 * Determine the charset to use for JSON input.
+	 * <p>By default this is either the charset from the input {@code MediaType}
+	 * or otherwise falling back on {@code UTF-8}. Can be overridden in subclasses.
+	 * @param contentType the content type of the HTTP input message
+	 * @return the charset to use
+	 */
+	protected Charset getCharset(@Nullable MediaType contentType) {
+		if (contentType != null && contentType.getCharset() != null) {
+			return contentType.getCharset();
+		}
+		else {
+			return StandardCharsets.UTF_8;
+		}
+	}
+
+	@Override
+	protected void writeInternal(Object object, ResolvableType resolvableType, HttpOutputMessage outputMessage, @Nullable Map<String, Object> hints)
+			throws IOException, HttpMessageNotWritableException {
+
+		MediaType contentType = outputMessage.getHeaders().getContentType();
+		JsonEncoding encoding = getJsonEncoding(contentType);
+
+		Class<?> clazz = object.getClass();
+		ObjectMapper objectMapper = selectObjectMapper(clazz, contentType);
+		Assert.state(objectMapper != null, () -> "No ObjectMapper for " + clazz.getName());
+
+		OutputStream outputStream = StreamUtils.nonClosing(outputMessage.getBody());
+		Class<?> jsonView = null;
+		FilterProvider filters = null;
+		JavaType javaType = null;
+
+		Type type = resolvableType.getType();
+		if (TypeUtils.isAssignable(type, object.getClass())) {
+			javaType = getJavaType(type, null);
+		}
+		if (hints != null) {
+			jsonView = (Class<?>) hints.get(JSON_VIEW_HINT);
+			filters = (FilterProvider) hints.get(FILTER_PROVIDER_HINT);
+		}
+
+		ObjectWriter objectWriter = (jsonView != null ?
+				objectMapper.writerWithView(jsonView) : objectMapper.writer());
+		if (filters != null) {
+			objectWriter = objectWriter.with(filters);
+		}
+		if (javaType != null && (javaType.isContainerType() || javaType.isTypeOrSubTypeOf(Optional.class))) {
+			objectWriter = objectWriter.forType(javaType);
+		}
+		SerializationConfig config = objectWriter.getConfig();
+		if (contentType != null && contentType.isCompatibleWith(MediaType.TEXT_EVENT_STREAM) &&
+				config.isEnabled(SerializationFeature.INDENT_OUTPUT)) {
+			objectWriter = objectWriter.with(this.ssePrettyPrinter);
+		}
+		objectWriter = customizeWriter(objectWriter, javaType, contentType);
+
+		try (JsonGenerator generator = objectWriter.createGenerator(outputStream, encoding)) {
+			writePrefix(generator, object);
+			objectWriter.writeValue(generator, object);
+			writeSuffix(generator, object);
+			generator.flush();
+		}
+		catch (InvalidDefinitionException ex) {
+			throw new HttpMessageConversionException("Type definition error: " + ex.getType(), ex);
+		}
+		catch (JacksonException ex) {
+			throw new HttpMessageNotWritableException("Could not write JSON: " + ex.getOriginalMessage(), ex);
+		}
+	}
+
+	/**
+	 * Subclasses can use this method to customize {@link ObjectWriter} used
+	 * for writing values.
+	 * @param writer the writer instance to customize
+	 * @param javaType the type of element values to write
+	 * @param contentType the selected media type
+	 * @return the customized {@link ObjectWriter}
+	 */
+	protected ObjectWriter customizeWriter(
+			ObjectWriter writer, @Nullable JavaType javaType, @Nullable MediaType contentType) {
+
+		return writer;
+	}
+
+	/**
+	 * Write a prefix before the main content.
+	 * @param generator the generator to use for writing content.
+	 * @param object the object to write to the output message.
+	 */
+	protected void writePrefix(JsonGenerator generator, Object object) {
+	}
+
+	/**
+	 * Write a suffix after the main content.
+	 * @param generator the generator to use for writing content.
+	 * @param object the object to write to the output message.
+	 */
+	protected void writeSuffix(JsonGenerator generator, Object object) {
+	}
+
+	/**
+	 * Return the Jackson {@link JavaType} for the specified type and context class.
+	 * @param type the generic type to return the Jackson JavaType for
+	 * @param contextClass a context class for the target type, for example a class
+	 * in which the target type appears in a method signature (can be {@code null})
+	 * @return the Jackson JavaType
+	 */
+	protected JavaType getJavaType(Type type, @Nullable Class<?> contextClass) {
+		return this.defaultObjectMapper.constructType(GenericTypeResolver.resolveType(type, contextClass));
+	}
+
+	/**
+	 * Determine the JSON encoding to use for the given content type.
+	 * @param contentType the media type as requested by the caller
+	 * @return the JSON encoding to use (never {@code null})
+	 */
+	protected JsonEncoding getJsonEncoding(@Nullable MediaType contentType) {
+		if (contentType != null && contentType.getCharset() != null) {
+			Charset charset = contentType.getCharset();
+			JsonEncoding encoding = ENCODINGS.get(charset.name());
+			if (encoding != null) {
+				return encoding;
+			}
+		}
+		return JsonEncoding.UTF8;
+	}
+
+	@Override
+	protected boolean supportsRepeatableWrites(Object o) {
+		return true;
+	}
+}

spring-web/src/main/java/org/springframework/http/converter/cbor/JacksonCborHttpMessageConverter.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2002-2025 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.http.converter.cbor;
+
+import tools.jackson.databind.cfg.MapperBuilder;
+import tools.jackson.dataformat.cbor.CBORMapper;
+
+import org.springframework.http.MediaType;
+import org.springframework.http.converter.AbstractJacksonHttpMessageConverter;
+
+/**
+ * Implementation of {@link org.springframework.http.converter.HttpMessageConverter
+ * HttpMessageConverter} that can read and write the <a href="https://cbor.io/">CBOR</a>
+ * data format using <a href="https://github.com/FasterXML/jackson-dataformats-binary/tree/3.x/cbor">
+ * the dedicated Jackson 3.x extension</a>.
+ *
+ * <p>By default, this converter supports the {@link MediaType#APPLICATION_CBOR_VALUE}
+ * media type. This can be overridden by setting the {@link #setSupportedMediaTypes
+ * supportedMediaTypes} property.
+ *
+ * <p>The default constructor loads {@link tools.jackson.databind.JacksonModule}s
+ * found by {@link MapperBuilder#findModules(ClassLoader)}.
+ *
+ * @author Sebastien Deleuze
+ * @since 7.0
+ */
+public class JacksonCborHttpMessageConverter extends AbstractJacksonHttpMessageConverter {
+
+	/**
+	 * Construct a new instance with a {@link CBORMapper} customized with the
+	 * {@link tools.jackson.databind.JacksonModule}s found by
+	 * {@link MapperBuilder#findModules(ClassLoader)}.
+	 */
+	public JacksonCborHttpMessageConverter() {
+		super(CBORMapper.builder(), MediaType.APPLICATION_CBOR);
+	}
+
+	/**
+	 * Construct a new instance with the provided {@link CBORMapper}.
+	 * @see CBORMapper#builder()
+	 * @see MapperBuilder#findAndAddModules(ClassLoader)
+	 */
+	public JacksonCborHttpMessageConverter(CBORMapper mapper) {
+		super(mapper, MediaType.APPLICATION_CBOR);
+	}
+
+}

spring-web/src/main/java/org/springframework/http/converter/json/JacksonJsonHttpMessageConverter.java

@@ -0,0 +1,124 @@
+/*
+ * Copyright 2002-2025 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.http.converter.json;
+
+import java.util.Collections;
+import java.util.List;
+
+import org.jspecify.annotations.Nullable;
+import tools.jackson.core.JsonGenerator;
+import tools.jackson.databind.ObjectMapper;
+import tools.jackson.databind.cfg.MapperBuilder;
+import tools.jackson.databind.json.JsonMapper;
+
+import org.springframework.http.MediaType;
+import org.springframework.http.ProblemDetail;
+import org.springframework.http.converter.AbstractJacksonHttpMessageConverter;
+
+/**
+ * Implementation of {@link org.springframework.http.converter.HttpMessageConverter}
+ * that can read and write JSON using <a href="https://github.com/FasterXML/jackson">Jackson 3.x's</a>
+ * {@link ObjectMapper}.
+ *
+ * <p>This converter can be used to bind to typed beans, or untyped
+ * {@code HashMap} instances.
+ *
+ * <p>By default, this converter supports {@code application/json} and
+ * {@code application/*+json} with {@code UTF-8} character set. This
+ * can be overridden by setting the {@link #setSupportedMediaTypes supportedMediaTypes}
+ * property.
+ *
+ * <p>The default constructor loads {@link tools.jackson.databind.JacksonModule}s
+ * found by {@link MapperBuilder#findModules(ClassLoader)}.
+ *
+ * <p>The following hints entries are supported:
+ * <ul>
+ *     <li>A JSON view with a <code>com.fasterxml.jackson.annotation.JsonView</code>
+ *         key and the class name of the JSON view as value.</li>
+ *     <li>A filter provider with a <code>tools.jackson.databind.ser.FilterProvider</code>
+ *         key and the filter provider class name as value.</li>
+ * </ul>
+ *
+ * @author Sebastien Deleuze
+ * @since 7.0
+ */
+public class JacksonJsonHttpMessageConverter extends AbstractJacksonHttpMessageConverter {
+
+	private static final List<MediaType> problemDetailMediaTypes =
+			Collections.singletonList(MediaType.APPLICATION_PROBLEM_JSON);
+
+	private static final MediaType[] DEFAULT_JSON_MIME_TYPES = new MediaType[] {
+			MediaType.APPLICATION_JSON, new MediaType("application", "*+json") };
+
+
+	private @Nullable String jsonPrefix;
+
+
+	/**
+	 * Construct a new instance with a {@link JsonMapper} customized with the
+	 * {@link tools.jackson.databind.JacksonModule}s found by
+	 * {@link MapperBuilder#findModules(ClassLoader)} and
+	 * {@link ProblemDetailJacksonMixin}.
+	 */
+	public JacksonJsonHttpMessageConverter() {
+		super(JsonMapper.builder().addMixIn(ProblemDetail.class, ProblemDetailJacksonMixin.class), DEFAULT_JSON_MIME_TYPES);
+	}
+
+	/**
+	 * Construct a new instance with the provided {@link ObjectMapper}.
+	 * @see JsonMapper#builder()
+	 * @see MapperBuilder#findModules(ClassLoader)
+	 */
+	public JacksonJsonHttpMessageConverter(ObjectMapper objectMapper) {
+		super(objectMapper, DEFAULT_JSON_MIME_TYPES);
+	}
+
+
+	/**
+	 * Specify a custom prefix to use for this view's JSON output.
+	 * Default is none.
+	 * @see #setPrefixJson
+	 */
+	public void setJsonPrefix(String jsonPrefix) {
+		this.jsonPrefix = jsonPrefix;
+	}
+
+	/**
+	 * Indicate whether the JSON output by this view should be prefixed with ")]}', ". Default is {@code false}.
+	 * <p>Prefixing the JSON string in this manner is used to help prevent JSON Hijacking.
+	 * The prefix renders the string syntactically invalid as a script so that it cannot be hijacked.
+	 * This prefix should be stripped before parsing the string as JSON.
+	 * @see #setJsonPrefix
+	 */
+	public void setPrefixJson(boolean prefixJson) {
+		this.jsonPrefix = (prefixJson ? ")]}', " : null);
+	}
+
+
+	@Override
+	protected List<MediaType> getMediaTypesForProblemDetail() {
+		return problemDetailMediaTypes;
+	}
+
+	@Override
+	protected void writePrefix(JsonGenerator generator, Object object) {
+		if (this.jsonPrefix != null) {
+			generator.writeRaw(this.jsonPrefix);
+		}
+	}
+
+}

spring-web/src/main/java/org/springframework/http/converter/smile/JacksonSmileHttpMessageConverter.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2002-2025 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.http.converter.smile;
+
+import tools.jackson.databind.cfg.MapperBuilder;
+import tools.jackson.dataformat.smile.SmileMapper;
+
+import org.springframework.http.MediaType;
+import org.springframework.http.converter.AbstractJacksonHttpMessageConverter;
+
+/**
+ * Implementation of {@link org.springframework.http.converter.HttpMessageConverter HttpMessageConverter}
+ * that can read and write Smile data format ("binary JSON") using
+ * <a href="https://github.com/FasterXML/jackson-dataformats-binary/tree/3.x/smile">
+ * the dedicated Jackson 3.x extension</a>.
+ *
+ * <p>By default, this converter supports {@code "application/x-jackson-smile"}
+ * media type. This can be overridden by setting the
+ * {@link #setSupportedMediaTypes supportedMediaTypes} property.
+ *
+ * <p>The default constructor loads {@link tools.jackson.databind.JacksonModule}s
+ * found by {@link MapperBuilder#findModules(ClassLoader)}.
+ *
+ * @author Sebastien Deleuze
+ * @since 7.0
+ */
+public class JacksonSmileHttpMessageConverter extends AbstractJacksonHttpMessageConverter {
+
+	private static final MediaType DEFAULT_SMILE_MIME_TYPES = new MediaType("application", "x-jackson-smile");
+
+	/**
+	 * Construct a new instance with a {@link SmileMapper} customized with the
+	 * {@link tools.jackson.databind.JacksonModule}s found by
+	 * {@link MapperBuilder#findModules(ClassLoader)}.
+	 */
+	public JacksonSmileHttpMessageConverter() {
+		super(SmileMapper.builder(), DEFAULT_SMILE_MIME_TYPES);
+	}
+
+	/**
+	 * Construct a new instance with the provided {@link SmileMapper}.
+	 * @see SmileMapper#builder()
+	 * @see MapperBuilder#findAndAddModules(ClassLoader)
+	 */
+	public JacksonSmileHttpMessageConverter(SmileMapper mapper) {
+		super(mapper, DEFAULT_SMILE_MIME_TYPES);
+	}
+
+}

spring-web/src/main/java/org/springframework/http/converter/support/AllEncompassingFormHttpMessageConverter.java

@@ -17,16 +17,21 @@
 package org.springframework.http.converter.support;
 
 import org.springframework.http.converter.FormHttpMessageConverter;
+import org.springframework.http.converter.cbor.JacksonCborHttpMessageConverter;
 import org.springframework.http.converter.cbor.KotlinSerializationCborHttpMessageConverter;
 import org.springframework.http.converter.cbor.MappingJackson2CborHttpMessageConverter;
 import org.springframework.http.converter.json.GsonHttpMessageConverter;
+import org.springframework.http.converter.json.JacksonJsonHttpMessageConverter;
 import org.springframework.http.converter.json.JsonbHttpMessageConverter;
 import org.springframework.http.converter.json.KotlinSerializationJsonHttpMessageConverter;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.http.converter.protobuf.KotlinSerializationProtobufHttpMessageConverter;
+import org.springframework.http.converter.smile.JacksonSmileHttpMessageConverter;
 import org.springframework.http.converter.smile.MappingJackson2SmileHttpMessageConverter;
+import org.springframework.http.converter.xml.JacksonXmlHttpMessageConverter;
 import org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter;
 import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter;
+import org.springframework.http.converter.yaml.JacksonYamlHttpMessageConverter;
 import org.springframework.http.converter.yaml.MappingJackson2YamlHttpMessageConverter;
 import org.springframework.util.ClassUtils;
 
@@ -44,14 +49,24 @@ public class AllEncompassingFormHttpMessageConverter extends FormHttpMessageConv
 
 	private static final boolean jaxb2Present;
 
+	private static final boolean jacksonPresent;
+
 	private static final boolean jackson2Present;
 
+	private static final boolean jacksonXmlPresent;
+
 	private static final boolean jackson2XmlPresent;
 
+	private static final boolean jacksonSmilePresent;
+
 	private static final boolean jackson2SmilePresent;
 
+	private static final boolean jacksonCborPresent;
+
 	private static final boolean jackson2CborPresent;
 
+	private static final boolean jacksonYamlPresent;
+
 	private static final boolean jackson2YamlPresent;
 
 	private static final boolean gsonPresent;
@@ -67,12 +82,17 @@ public class AllEncompassingFormHttpMessageConverter extends FormHttpMessageConv
 	static {
 		ClassLoader classLoader = AllEncompassingFormHttpMessageConverter.class.getClassLoader();
 		jaxb2Present = ClassUtils.isPresent("jakarta.xml.bind.Binder", classLoader);
+		jacksonPresent = ClassUtils.isPresent("tools.jackson.databind.ObjectMapper", classLoader);
 		jackson2Present = ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", classLoader) &&
 						ClassUtils.isPresent("com.fasterxml.jackson.core.JsonGenerator", classLoader);
-		jackson2XmlPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.xml.XmlMapper", classLoader);
-		jackson2SmilePresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.smile.SmileFactory", classLoader);
-		jackson2CborPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.cbor.CBORFactory", classLoader);
-		jackson2YamlPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.yaml.YAMLFactory", classLoader);
+		jacksonXmlPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.xml.XmlMapper", classLoader);
+		jackson2XmlPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.xml.XmlMapper", classLoader);
+		jacksonSmilePresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.smile.SmileMapper", classLoader);
+		jackson2SmilePresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.smile.SmileFactory", classLoader);
+		jacksonCborPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.cbor.CBORMapper", classLoader);
+		jackson2CborPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.cbor.CBORFactory", classLoader);
+		jacksonYamlPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.yaml.YAMLMapper", classLoader);
+		jackson2YamlPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.yaml.YAMLFactory", classLoader);
 		gsonPresent = ClassUtils.isPresent("com.google.gson.Gson", classLoader);
 		jsonbPresent = ClassUtils.isPresent("jakarta.json.bind.Jsonb", classLoader);
 		kotlinSerializationCborPresent = ClassUtils.isPresent("kotlinx.serialization.cbor.Cbor", classLoader);
@@ -83,11 +103,14 @@ public class AllEncompassingFormHttpMessageConverter extends FormHttpMessageConv
 
 	public AllEncompassingFormHttpMessageConverter() {
 
-		if (jaxb2Present && !jackson2XmlPresent) {
+		if (jaxb2Present && !jacksonXmlPresent && !jackson2XmlPresent) {
 			addPartConverter(new Jaxb2RootElementHttpMessageConverter());
 		}
 
-		if (jackson2Present) {
+		if (jacksonPresent) {
+			addPartConverter(new JacksonJsonHttpMessageConverter());
+		}
+		else if (jackson2Present) {
 			addPartConverter(new MappingJackson2HttpMessageConverter());
 		}
 		else if (gsonPresent) {
@@ -100,22 +123,34 @@ public class AllEncompassingFormHttpMessageConverter extends FormHttpMessageConv
 			addPartConverter(new KotlinSerializationJsonHttpMessageConverter());
 		}
 
-		if (jackson2XmlPresent) {
+		if (jacksonXmlPresent) {
+			addPartConverter(new JacksonXmlHttpMessageConverter());
+		}
+		else if (jackson2XmlPresent) {
 			addPartConverter(new MappingJackson2XmlHttpMessageConverter());
 		}
 
-		if (jackson2SmilePresent) {
+		if (jacksonSmilePresent) {
+			addPartConverter(new JacksonSmileHttpMessageConverter());
+		}
+		else if (jackson2SmilePresent) {
 			addPartConverter(new MappingJackson2SmileHttpMessageConverter());
 		}
 
-		if (jackson2CborPresent) {
+		if (jacksonCborPresent) {
+			addPartConverter(new JacksonCborHttpMessageConverter());
+		}
+		else if (jackson2CborPresent) {
 			addPartConverter(new MappingJackson2CborHttpMessageConverter());
 		}
 		else if (kotlinSerializationCborPresent) {
 			addPartConverter(new KotlinSerializationCborHttpMessageConverter());
 		}
 
-		if (jackson2YamlPresent) {
+		if (jacksonYamlPresent) {
+			addPartConverter(new JacksonYamlHttpMessageConverter());
+		}
+		else if (jackson2YamlPresent) {
 			addPartConverter(new MappingJackson2YamlHttpMessageConverter());
 		}
 

spring-web/src/main/java/org/springframework/http/converter/xml/JacksonXmlHttpMessageConverter.java

@@ -0,0 +1,111 @@
+/*
+ * Copyright 2002-2025 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.http.converter.xml;
+
+import java.nio.charset.StandardCharsets;
+import java.util.Collections;
+import java.util.List;
+
+import tools.jackson.databind.cfg.MapperBuilder;
+import tools.jackson.dataformat.xml.XmlFactory;
+import tools.jackson.dataformat.xml.XmlMapper;
+
+import org.springframework.http.MediaType;
+import org.springframework.http.ProblemDetail;
+import org.springframework.http.converter.AbstractJacksonHttpMessageConverter;
+import org.springframework.http.converter.json.ProblemDetailJacksonXmlMixin;
+import org.springframework.util.xml.StaxUtils;
+
+/**
+ * Implementation of {@link org.springframework.http.converter.HttpMessageConverter HttpMessageConverter}
+ * that can read and write XML using <a href="https://github.com/FasterXML/jackson-dataformat-xml">
+ * Jackson 3.x extension component for reading and writing XML encoded data</a>.
+ *
+ * <p>By default, this converter supports {@code application/xml}, {@code text/xml}, and
+ * {@code application/*+xml} with {@code UTF-8} character set. This can be overridden by
+ * setting the {@link #setSupportedMediaTypes supportedMediaTypes} property.
+ *
+ * <p>The default constructor loads {@link tools.jackson.databind.JacksonModule}s
+ * found by {@link MapperBuilder#findModules(ClassLoader)}.
+ *
+ * <p>The following hint entries are supported:
+ * <ul>
+ *     <li>A JSON view with a <code>com.fasterxml.jackson.annotation.JsonView</code>
+ *         key and the class name of the JSON view as value.</li>
+ *     <li>A filter provider with a <code>tools.jackson.databind.ser.FilterProvider</code>
+ *         key and the filter provider class name as value.</li>
+ * </ul>
+ *
+ * @author Sebastien Deleuze
+ * @since 7.0
+ */
+public class JacksonXmlHttpMessageConverter extends AbstractJacksonHttpMessageConverter {
+
+	private static final List<MediaType> problemDetailMediaTypes =
+			Collections.singletonList(MediaType.APPLICATION_PROBLEM_XML);
+
+	private static final MediaType[] DEFAULT_XML_MIME_TYPES = new MediaType[] {
+			new MediaType("application", "xml", StandardCharsets.UTF_8),
+			new MediaType("text", "xml", StandardCharsets.UTF_8),
+			new MediaType("application", "*+xml", StandardCharsets.UTF_8)
+	};
+
+	/**
+	 * Construct a new instance with a {@link XmlMapper} created from
+	 * {@link #defensiveXmlFactory} and customized with the
+	 * {@link tools.jackson.databind.JacksonModule}s found by
+	 * {@link MapperBuilder#findModules(ClassLoader)} and
+	 * {@link ProblemDetailJacksonXmlMixin}.
+	 */
+	public JacksonXmlHttpMessageConverter() {
+		this(XmlMapper.builder(defensiveXmlFactory()));
+	}
+
+	/**
+	 * Construct a new instance with the provided {@link XmlMapper.Builder builder}
+	 * customized with the {@link tools.jackson.databind.JacksonModule}s found by
+	 * {@link MapperBuilder#findModules(ClassLoader)} and
+	 * {@link ProblemDetailJacksonXmlMixin}.
+	 */
+	public JacksonXmlHttpMessageConverter(XmlMapper.Builder builder) {
+		super(builder.addMixIn(ProblemDetail.class, ProblemDetailJacksonXmlMixin.class), DEFAULT_XML_MIME_TYPES);
+	}
+
+	/**
+	 * Construct a new instance with the provided {@link XmlMapper}.
+	 * @see XmlMapper#builder()
+	 * @see MapperBuilder#findModules(ClassLoader)
+	 */
+	public JacksonXmlHttpMessageConverter(XmlMapper xmlMapper) {
+		super(xmlMapper, DEFAULT_XML_MIME_TYPES);
+	}
+
+	/**
+	 * Return an {@link XmlFactory} created from {@link StaxUtils#createDefensiveInputFactory}
+	 * with Spring's defensive setup, i.e. no support for the resolution of DTDs and external
+	 * entities.
+	 */
+	public static XmlFactory defensiveXmlFactory() {
+		return new XmlFactory(StaxUtils.createDefensiveInputFactory());
+	}
+
+	@Override
+	protected List<MediaType> getMediaTypesForProblemDetail() {
+		return problemDetailMediaTypes;
+	}
+
+}

spring-web/src/main/java/org/springframework/http/converter/yaml/JacksonYamlHttpMessageConverter.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2002-2025 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.http.converter.yaml;
+
+import tools.jackson.databind.cfg.MapperBuilder;
+import tools.jackson.dataformat.yaml.YAMLMapper;
+
+import org.springframework.http.MediaType;
+import org.springframework.http.converter.AbstractJacksonHttpMessageConverter;
+
+/**
+ * Implementation of {@link org.springframework.http.converter.HttpMessageConverter
+ * HttpMessageConverter} that can read and write the <a href="https://yaml.io/">YAML</a>
+ * data format using <a href="https://github.com/FasterXML/jackson-dataformats-text/tree/3.x/yaml">
+ * the dedicated Jackson 3.x extension</a>.
+ *
+ * <p>By default, this converter supports the {@link MediaType#APPLICATION_YAML_VALUE}
+ * media type. This can be overridden by setting the {@link #setSupportedMediaTypes
+ * supportedMediaTypes} property.
+ *
+ * <p>The default constructor loads {@link tools.jackson.databind.JacksonModule}s
+ * found by {@link MapperBuilder#findModules(ClassLoader)}.
+ *
+ * @author Sebastien Deleuze
+ * @since 7.0
+ */
+public class JacksonYamlHttpMessageConverter extends AbstractJacksonHttpMessageConverter {
+
+	/**
+	 * Construct a new instance with a {@link YAMLMapper} customized with the
+	 * {@link tools.jackson.databind.JacksonModule}s found by
+	 * {@link MapperBuilder#findModules(ClassLoader)}.
+	 */
+	public JacksonYamlHttpMessageConverter() {
+		super(YAMLMapper.builder(), MediaType.APPLICATION_YAML);
+	}
+
+	/**
+	 * Construct a new instance with the provided {@link YAMLMapper}.
+	 * @see YAMLMapper#builder()
+	 * @see MapperBuilder#findAndAddModules(ClassLoader)
+	 */
+	public JacksonYamlHttpMessageConverter(YAMLMapper mapper) {
+		super(mapper, MediaType.APPLICATION_YAML);
+	}
+
+}

spring-web/src/main/java/org/springframework/web/client/DefaultRestClientBuilder.java

@@ -47,19 +47,24 @@ import org.springframework.http.converter.ByteArrayHttpMessageConverter;
 import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.ResourceHttpMessageConverter;
 import org.springframework.http.converter.StringHttpMessageConverter;
+import org.springframework.http.converter.cbor.JacksonCborHttpMessageConverter;
 import org.springframework.http.converter.cbor.KotlinSerializationCborHttpMessageConverter;
 import org.springframework.http.converter.cbor.MappingJackson2CborHttpMessageConverter;
 import org.springframework.http.converter.feed.AtomFeedHttpMessageConverter;
 import org.springframework.http.converter.feed.RssChannelHttpMessageConverter;
 import org.springframework.http.converter.json.GsonHttpMessageConverter;
+import org.springframework.http.converter.json.JacksonJsonHttpMessageConverter;
 import org.springframework.http.converter.json.JsonbHttpMessageConverter;
 import org.springframework.http.converter.json.KotlinSerializationJsonHttpMessageConverter;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.http.converter.protobuf.KotlinSerializationProtobufHttpMessageConverter;
+import org.springframework.http.converter.smile.JacksonSmileHttpMessageConverter;
 import org.springframework.http.converter.smile.MappingJackson2SmileHttpMessageConverter;
 import org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter;
+import org.springframework.http.converter.xml.JacksonXmlHttpMessageConverter;
 import org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter;
 import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter;
+import org.springframework.http.converter.yaml.JacksonYamlHttpMessageConverter;
 import org.springframework.http.converter.yaml.MappingJackson2YamlHttpMessageConverter;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
@@ -96,14 +101,24 @@ final class DefaultRestClientBuilder implements RestClient.Builder {
 
 	private static final boolean jaxb2Present;
 
+	private static final boolean jacksonPresent;
+
 	private static final boolean jackson2Present;
 
+	private static final boolean jacksonXmlPresent;
+
 	private static final boolean jackson2XmlPresent;
 
+	private static final boolean jacksonSmilePresent;
+
 	private static final boolean jackson2SmilePresent;
 
+	private static final boolean jacksonCborPresent;
+
 	private static final boolean jackson2CborPresent;
 
+	private static final boolean jacksonYamlPresent;
+
 	private static final boolean jackson2YamlPresent;
 
 	private static final boolean gsonPresent;
@@ -126,12 +141,17 @@ final class DefaultRestClientBuilder implements RestClient.Builder {
 
 		romePresent = ClassUtils.isPresent("com.rometools.rome.feed.WireFeed", loader);
 		jaxb2Present = ClassUtils.isPresent("jakarta.xml.bind.Binder", loader);
+		jacksonPresent = ClassUtils.isPresent("tools.jackson.databind.ObjectMapper", loader);
 		jackson2Present = ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", loader) &&
 				ClassUtils.isPresent("com.fasterxml.jackson.core.JsonGenerator", loader);
-		jackson2XmlPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.xml.XmlMapper", loader);
-		jackson2SmilePresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.smile.SmileFactory", loader);
-		jackson2CborPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.cbor.CBORFactory", loader);
-		jackson2YamlPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.yaml.YAMLFactory", loader);
+		jacksonXmlPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.xml.XmlMapper", loader);
+		jackson2XmlPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.xml.XmlMapper", loader);
+		jacksonSmilePresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.smile.SmileMapper", loader);
+		jackson2SmilePresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.smile.SmileFactory", loader);
+		jacksonCborPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.cbor.CBORMapper", loader);
+		jackson2CborPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.cbor.CBORFactory", loader);
+		jacksonYamlPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.yaml.YAMLMapper", loader);
+		jackson2YamlPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.yaml.YAMLFactory", loader);
 		gsonPresent = ClassUtils.isPresent("com.google.gson.Gson", loader);
 		jsonbPresent = ClassUtils.isPresent("jakarta.json.bind.Jsonb", loader);
 		kotlinSerializationCborPresent = ClassUtils.isPresent("kotlinx.serialization.cbor.Cbor", loader);
@@ -463,7 +483,10 @@ final class DefaultRestClientBuilder implements RestClient.Builder {
 				this.messageConverters.add(new RssChannelHttpMessageConverter());
 			}
 
-			if (jackson2XmlPresent) {
+			if (jacksonXmlPresent) {
+				this.messageConverters.add(new JacksonXmlHttpMessageConverter());
+			}
+			else if (jackson2XmlPresent) {
 				this.messageConverters.add(new MappingJackson2XmlHttpMessageConverter());
 			}
 			else if (jaxb2Present) {
@@ -474,7 +497,10 @@ final class DefaultRestClientBuilder implements RestClient.Builder {
 				this.messageConverters.add(new KotlinSerializationProtobufHttpMessageConverter());
 			}
 
-			if (jackson2Present) {
+			if (jacksonPresent) {
+				this.messageConverters.add(new JacksonJsonHttpMessageConverter());
+			}
+			else if (jackson2Present) {
 				this.messageConverters.add(new MappingJackson2HttpMessageConverter());
 			}
 			else if (gsonPresent) {
@@ -487,18 +513,27 @@ final class DefaultRestClientBuilder implements RestClient.Builder {
 				this.messageConverters.add(new KotlinSerializationJsonHttpMessageConverter());
 			}
 
+			if (jacksonSmilePresent) {
+				this.messageConverters.add(new JacksonSmileHttpMessageConverter());
+			}
 			if (jackson2SmilePresent) {
 				this.messageConverters.add(new MappingJackson2SmileHttpMessageConverter());
 			}
 
-			if (jackson2CborPresent) {
+			if (jacksonCborPresent) {
+				this.messageConverters.add(new JacksonCborHttpMessageConverter());
+			}
+			else if (jackson2CborPresent) {
 				this.messageConverters.add(new MappingJackson2CborHttpMessageConverter());
 			}
 			else if (kotlinSerializationCborPresent) {
 				this.messageConverters.add(new KotlinSerializationCborHttpMessageConverter());
 			}
 
-			if (jackson2YamlPresent) {
+			if (jacksonYamlPresent) {
+				this.messageConverters.add(new JacksonYamlHttpMessageConverter());
+			}
+			else if (jackson2YamlPresent) {
 				this.messageConverters.add(new MappingJackson2YamlHttpMessageConverter());
 			}
 		}

spring-web/src/main/java/org/springframework/web/client/RestTemplate.java

@@ -56,19 +56,24 @@ import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.ResourceHttpMessageConverter;
 import org.springframework.http.converter.SmartHttpMessageConverter;
 import org.springframework.http.converter.StringHttpMessageConverter;
+import org.springframework.http.converter.cbor.JacksonCborHttpMessageConverter;
 import org.springframework.http.converter.cbor.KotlinSerializationCborHttpMessageConverter;
 import org.springframework.http.converter.cbor.MappingJackson2CborHttpMessageConverter;
 import org.springframework.http.converter.feed.AtomFeedHttpMessageConverter;
 import org.springframework.http.converter.feed.RssChannelHttpMessageConverter;
 import org.springframework.http.converter.json.GsonHttpMessageConverter;
+import org.springframework.http.converter.json.JacksonJsonHttpMessageConverter;
 import org.springframework.http.converter.json.JsonbHttpMessageConverter;
 import org.springframework.http.converter.json.KotlinSerializationJsonHttpMessageConverter;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.http.converter.protobuf.KotlinSerializationProtobufHttpMessageConverter;
+import org.springframework.http.converter.smile.JacksonSmileHttpMessageConverter;
 import org.springframework.http.converter.smile.MappingJackson2SmileHttpMessageConverter;
 import org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter;
+import org.springframework.http.converter.xml.JacksonXmlHttpMessageConverter;
 import org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter;
 import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter;
+import org.springframework.http.converter.yaml.JacksonYamlHttpMessageConverter;
 import org.springframework.http.converter.yaml.MappingJackson2YamlHttpMessageConverter;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
@@ -124,14 +129,24 @@ public class RestTemplate extends InterceptingHttpAccessor implements RestOperat
 
 	private static final boolean jaxb2Present;
 
+	private static final boolean jacksonPresent;
+
 	private static final boolean jackson2Present;
 
+	private static final boolean jacksonXmlPresent;
+
 	private static final boolean jackson2XmlPresent;
 
+	private static final boolean jacksonSmilePresent;
+
 	private static final boolean jackson2SmilePresent;
 
+	private static final boolean jacksonCborPresent;
+
 	private static final boolean jackson2CborPresent;
 
+	private static final boolean jacksonYamlPresent;
+
 	private static final boolean jackson2YamlPresent;
 
 	private static final boolean gsonPresent;
@@ -151,12 +166,17 @@ public class RestTemplate extends InterceptingHttpAccessor implements RestOperat
 
 		romePresent = ClassUtils.isPresent("com.rometools.rome.feed.WireFeed", classLoader);
 		jaxb2Present = ClassUtils.isPresent("jakarta.xml.bind.Binder", classLoader);
+		jacksonPresent = ClassUtils.isPresent("tools.jackson.databind.ObjectMapper", classLoader);
 		jackson2Present = ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", classLoader) &&
 				ClassUtils.isPresent("com.fasterxml.jackson.core.JsonGenerator", classLoader);
-		jackson2XmlPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.xml.XmlMapper", classLoader);
-		jackson2SmilePresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.smile.SmileFactory", classLoader);
-		jackson2CborPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.cbor.CBORFactory", classLoader);
-		jackson2YamlPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.yaml.YAMLFactory", classLoader);
+		jacksonXmlPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.xml.XmlMapper", classLoader);
+		jackson2XmlPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.xml.XmlMapper", classLoader);
+		jacksonSmilePresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.smile.SmileMapper", classLoader);
+		jackson2SmilePresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.smile.SmileFactory", classLoader);
+		jacksonCborPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.cbor.CBORMapper", classLoader);
+		jackson2CborPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.cbor.CBORFactory", classLoader);
+		jacksonYamlPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.yaml.YAMLMapper", classLoader);
+		jackson2YamlPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.yaml.YAMLFactory", classLoader);
 		gsonPresent = ClassUtils.isPresent("com.google.gson.Gson", classLoader);
 		jsonbPresent = ClassUtils.isPresent("jakarta.json.bind.Jsonb", classLoader);
 		kotlinSerializationCborPresent = ClassUtils.isPresent("kotlinx.serialization.cbor.Cbor", classLoader);
@@ -193,7 +213,10 @@ public class RestTemplate extends InterceptingHttpAccessor implements RestOperat
 			this.messageConverters.add(new RssChannelHttpMessageConverter());
 		}
 
-		if (jackson2XmlPresent) {
+		if (jacksonXmlPresent) {
+			this.messageConverters.add(new JacksonXmlHttpMessageConverter());
+		}
+		else if (jackson2XmlPresent) {
 			this.messageConverters.add(new MappingJackson2XmlHttpMessageConverter());
 		}
 		else if (jaxb2Present) {
@@ -204,7 +227,10 @@ public class RestTemplate extends InterceptingHttpAccessor implements RestOperat
 			this.messageConverters.add(new KotlinSerializationProtobufHttpMessageConverter());
 		}
 
-		if (jackson2Present) {
+		if (jacksonPresent) {
+			this.messageConverters.add(new JacksonJsonHttpMessageConverter());
+		}
+		else if (jackson2Present) {
 			this.messageConverters.add(new MappingJackson2HttpMessageConverter());
 		}
 		else if (gsonPresent) {
@@ -217,18 +243,27 @@ public class RestTemplate extends InterceptingHttpAccessor implements RestOperat
 			this.messageConverters.add(new KotlinSerializationJsonHttpMessageConverter());
 		}
 
-		if (jackson2SmilePresent) {
+		if (jacksonSmilePresent) {
+			this.messageConverters.add(new JacksonSmileHttpMessageConverter());
+		}
+		else if (jackson2SmilePresent) {
 			this.messageConverters.add(new MappingJackson2SmileHttpMessageConverter());
 		}
 
-		if (jackson2CborPresent) {
+		if (jacksonCborPresent) {
+			this.messageConverters.add(new JacksonCborHttpMessageConverter());
+		}
+		else if (jackson2CborPresent) {
 			this.messageConverters.add(new MappingJackson2CborHttpMessageConverter());
 		}
 		else if (kotlinSerializationCborPresent) {
 			this.messageConverters.add(new KotlinSerializationCborHttpMessageConverter());
 		}
 
-		if (jackson2YamlPresent) {
+		if (jacksonYamlPresent) {
+			this.messageConverters.add(new JacksonYamlHttpMessageConverter());
+		}
+		else if (jackson2YamlPresent) {
 			this.messageConverters.add(new MappingJackson2YamlHttpMessageConverter());
 		}
 

spring-web/src/test/java/org/springframework/http/converter/cbor/JacksonCborHttpMessageConverterTests.java

@@ -0,0 +1,157 @@
+/*
+ * Copyright 2002-2025 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.http.converter.cbor;
+
+import java.io.IOException;
+
+import org.junit.jupiter.api.Test;
+import tools.jackson.dataformat.cbor.CBORMapper;
+
+import org.springframework.http.MediaType;
+import org.springframework.web.testfixture.http.MockHttpInputMessage;
+import org.springframework.web.testfixture.http.MockHttpOutputMessage;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.within;
+
+/**
+ * Jackson 3.x CBOR converter tests.
+ *
+ * @author Sebastien Deleuze
+ */
+class JacksonCborHttpMessageConverterTests {
+
+	private final JacksonCborHttpMessageConverter converter = new JacksonCborHttpMessageConverter();
+	private final CBORMapper mapper = CBORMapper.builder().build();
+
+
+	@Test
+	void canRead() {
+		assertThat(converter.canRead(MyBean.class, MediaType.APPLICATION_CBOR)).isTrue();
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "json"))).isFalse();
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "xml"))).isFalse();
+	}
+
+	@Test
+	void canWrite() {
+		assertThat(converter.canWrite(MyBean.class, MediaType.APPLICATION_CBOR)).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "json"))).isFalse();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "xml"))).isFalse();
+	}
+
+	@Test
+	void read() throws IOException {
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		body.setNumber(42);
+		body.setFraction(42F);
+		body.setArray(new String[]{"Foo", "Bar"});
+		body.setBool(true);
+		body.setBytes(new byte[]{0x1, 0x2});
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(mapper.writeValueAsBytes(body));
+		inputMessage.getHeaders().setContentType(MediaType.APPLICATION_CBOR);
+		MyBean result = (MyBean) converter.read(MyBean.class, inputMessage);
+		assertThat(result.getString()).isEqualTo("Foo");
+		assertThat(result.getNumber()).isEqualTo(42);
+		assertThat(result.getFraction()).isCloseTo(42F, within(0F));
+
+		assertThat(result.getArray()).isEqualTo(new String[]{"Foo", "Bar"});
+		assertThat(result.isBool()).isTrue();
+		assertThat(result.getBytes()).isEqualTo(new byte[]{0x1, 0x2});
+	}
+
+	@Test
+	void write() throws IOException {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		body.setNumber(42);
+		body.setFraction(42F);
+		body.setArray(new String[]{"Foo", "Bar"});
+		body.setBool(true);
+		body.setBytes(new byte[]{0x1, 0x2});
+		converter.write(body, null, outputMessage);
+		assertThat(outputMessage.getBodyAsBytes()).isEqualTo(mapper.writeValueAsBytes(body));
+		assertThat(outputMessage.getHeaders().getContentType())
+				.as("Invalid content-type").isEqualTo(MediaType.APPLICATION_CBOR);
+	}
+
+
+	public static class MyBean {
+
+		private String string;
+
+		private int number;
+
+		private float fraction;
+
+		private String[] array;
+
+		private boolean bool;
+
+		private byte[] bytes;
+
+		public byte[] getBytes() {
+			return bytes;
+		}
+
+		public void setBytes(byte[] bytes) {
+			this.bytes = bytes;
+		}
+
+		public boolean isBool() {
+			return bool;
+		}
+
+		public void setBool(boolean bool) {
+			this.bool = bool;
+		}
+
+		public String getString() {
+			return string;
+		}
+
+		public void setString(String string) {
+			this.string = string;
+		}
+
+		public int getNumber() {
+			return number;
+		}
+
+		public void setNumber(int number) {
+			this.number = number;
+		}
+
+		public float getFraction() {
+			return fraction;
+		}
+
+		public void setFraction(float fraction) {
+			this.fraction = fraction;
+		}
+
+		public String[] getArray() {
+			return array;
+		}
+
+		public void setArray(String[] array) {
+			this.array = array;
+		}
+	}
+
+}

spring-web/src/test/java/org/springframework/http/converter/json/JacksonJsonHttpMessageConverterTests.java

@@ -0,0 +1,843 @@
+/*
+ * Copyright 2002-2025 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.http.converter.json;
+
+import java.io.IOException;
+import java.lang.reflect.Type;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+import com.fasterxml.jackson.annotation.JsonFilter;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonView;
+import org.jspecify.annotations.Nullable;
+import org.junit.jupiter.api.Test;
+import org.skyscreamer.jsonassert.JSONAssert;
+import tools.jackson.databind.JavaType;
+import tools.jackson.databind.ObjectMapper;
+import tools.jackson.databind.ObjectReader;
+import tools.jackson.databind.ObjectWriter;
+import tools.jackson.databind.SerializationFeature;
+import tools.jackson.databind.cfg.EnumFeature;
+import tools.jackson.databind.json.JsonMapper;
+import tools.jackson.databind.ser.FilterProvider;
+import tools.jackson.databind.ser.std.SimpleBeanPropertyFilter;
+import tools.jackson.databind.ser.std.SimpleFilterProvider;
+
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.core.ResolvableType;
+import org.springframework.http.MediaType;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.testfixture.http.MockHttpInputMessage;
+import org.springframework.web.testfixture.http.MockHttpOutputMessage;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.assertj.core.api.Assertions.entry;
+import static org.assertj.core.api.Assertions.within;
+
+/**
+ * Jackson 3.x converter tests.
+ *
+ * @author Sebastien Deleuze
+ */
+class JacksonJsonHttpMessageConverterTests {
+
+	private JacksonJsonHttpMessageConverter converter = new JacksonJsonHttpMessageConverter();
+
+
+	@Test
+	void canRead() {
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "json"))).isTrue();
+		assertThat(converter.canRead(Map.class, new MediaType("application", "json"))).isTrue();
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "json", StandardCharsets.UTF_8))).isTrue();
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "json", StandardCharsets.US_ASCII))).isTrue();
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "json", StandardCharsets.ISO_8859_1))).isTrue();
+	}
+
+	@Test
+	void canReadWithObjectMapperRegistrationForType() {
+		MediaType halJsonMediaType = MediaType.parseMediaType("application/hal+json");
+		MediaType halFormsJsonMediaType = MediaType.parseMediaType("application/prs.hal-forms+json");
+
+		assertThat(converter.canRead(MyBean.class, halJsonMediaType)).isTrue();
+		assertThat(converter.canRead(MyBean.class, MediaType.APPLICATION_JSON)).isTrue();
+		assertThat(converter.canRead(MyBean.class, halFormsJsonMediaType)).isTrue();
+		assertThat(converter.canRead(Map.class, MediaType.APPLICATION_JSON)).isTrue();
+
+		converter.registerObjectMappersForType(MyBean.class, map -> {
+			map.put(halJsonMediaType, new ObjectMapper());
+			map.put(MediaType.APPLICATION_JSON, new ObjectMapper());
+		});
+
+		assertThat(converter.canRead(MyBean.class, halJsonMediaType)).isTrue();
+		assertThat(converter.canRead(MyBean.class, MediaType.APPLICATION_JSON)).isTrue();
+		assertThat(converter.canRead(Map.class, MediaType.APPLICATION_JSON)).isTrue();
+	}
+
+	@Test
+	void canWrite() {
+		assertThat(converter.canWrite(MyBean.class, MediaType.APPLICATION_JSON)).isTrue();
+		assertThat(converter.canWrite(Map.class, MediaType.APPLICATION_JSON)).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "json", StandardCharsets.UTF_8))).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "json", StandardCharsets.US_ASCII))).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "json", StandardCharsets.ISO_8859_1))).isFalse();
+		assertThatThrownBy(() -> converter.canWrite(MappingJacksonValue.class, MediaType.APPLICATION_JSON)).isInstanceOf(UnsupportedOperationException.class);
+	}
+
+	@Test  // SPR-7905
+	void canReadAndWriteMicroformats() {
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "vnd.test-micro-type+json"))).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "vnd.test-micro-type+json"))).isTrue();
+	}
+
+	@Test
+	void getSupportedMediaTypes() {
+		MediaType[] defaultMediaTypes = {MediaType.APPLICATION_JSON, MediaType.parseMediaType("application/*+json")};
+		assertThat(converter.getSupportedMediaTypes()).containsExactly(defaultMediaTypes);
+		assertThat(converter.getSupportedMediaTypes(MyBean.class)).containsExactly(defaultMediaTypes);
+
+		MediaType halJson = MediaType.parseMediaType("application/hal+json");
+		converter.registerObjectMappersForType(MyBean.class, map -> {
+			map.put(halJson, new ObjectMapper());
+			map.put(MediaType.APPLICATION_JSON, new ObjectMapper());
+		});
+
+		assertThat(converter.getSupportedMediaTypes(MyBean.class)).containsExactly(halJson, MediaType.APPLICATION_JSON);
+		assertThat(converter.getSupportedMediaTypes(Map.class)).containsExactly(defaultMediaTypes);
+	}
+
+	@Test
+	void readTyped() throws IOException {
+		String body = "{" +
+				"\"bytes\":\"AQI=\"," +
+				"\"array\":[\"Foo\",\"Bar\"]," +
+				"\"number\":42," +
+				"\"string\":\"Foo\"," +
+				"\"bool\":true," +
+				"\"fraction\":42.0}";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "json"));
+		MyBean result = (MyBean) converter.read(MyBean.class, inputMessage);
+		assertThat(result.getString()).isEqualTo("Foo");
+		assertThat(result.getNumber()).isEqualTo(42);
+		assertThat(result.getFraction()).isCloseTo(42F, within(0F));
+		assertThat(result.getArray()).isEqualTo(new String[] {"Foo", "Bar"});
+		assertThat(result.isBool()).isTrue();
+		assertThat(result.getBytes()).isEqualTo(new byte[] {0x1, 0x2});
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void readUntyped() throws IOException {
+		String body = "{" +
+				"\"bytes\":\"AQI=\"," +
+				"\"array\":[\"Foo\",\"Bar\"]," +
+				"\"number\":42," +
+				"\"string\":\"Foo\"," +
+				"\"bool\":true," +
+				"\"fraction\":42.0}";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "json"));
+		HashMap<String, Object> result = (HashMap<String, Object>) converter.read(HashMap.class, inputMessage);
+		assertThat(result).containsEntry("string", "Foo");
+		assertThat(result).containsEntry("number", 42);
+		assertThat((Double) result.get("fraction")).isCloseTo(42D, within(0D));
+		List<String> array = new ArrayList<>();
+		array.add("Foo");
+		array.add("Bar");
+		assertThat(result).containsEntry("array", array);
+		assertThat(result).containsEntry("bool", Boolean.TRUE);
+		assertThat(result).containsEntry("bytes", "AQI=");
+	}
+
+	@Test
+	void write() throws IOException {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		body.setNumber(42);
+		body.setFraction(42F);
+		body.setArray(new String[] {"Foo", "Bar"});
+		body.setBool(true);
+		body.setBytes(new byte[] {0x1, 0x2});
+		converter.write(body, null, outputMessage);
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).contains("\"string\":\"Foo\"");
+		assertThat(result).contains("\"number\":42");
+		assertThat(result).contains("fraction\":42.0");
+		assertThat(result).contains("\"array\":[\"Foo\",\"Bar\"]");
+		assertThat(result).contains("\"bool\":true");
+		assertThat(result).contains("\"bytes\":\"AQI=\"");
+		assertThat(outputMessage.getHeaders().getContentType())
+				.as("Invalid content-type").isEqualTo(MediaType.APPLICATION_JSON);
+	}
+
+	@Test
+	void writeWithBaseType() throws IOException {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		body.setNumber(42);
+		body.setFraction(42F);
+		body.setArray(new String[] {"Foo", "Bar"});
+		body.setBool(true);
+		body.setBytes(new byte[] {0x1, 0x2});
+		converter.write(body, ResolvableType.forClass(MyBase.class), null, outputMessage, null);
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).contains("\"string\":\"Foo\"");
+		assertThat(result).contains("\"number\":42");
+		assertThat(result).contains("fraction\":42.0");
+		assertThat(result).contains("\"array\":[\"Foo\",\"Bar\"]");
+		assertThat(result).contains("\"bool\":true");
+		assertThat(result).contains("\"bytes\":\"AQI=\"");
+		assertThat(outputMessage.getHeaders().getContentType())
+				.as("Invalid content-type").isEqualTo(MediaType.APPLICATION_JSON);
+	}
+
+	@Test
+	void writeUTF16() throws IOException {
+		MediaType contentType = new MediaType("application", "json", StandardCharsets.UTF_16BE);
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		String body = "H\u00e9llo W\u00f6rld";
+		converter.write(body, contentType, outputMessage);
+		assertThat(outputMessage.getBodyAsString(StandardCharsets.UTF_16BE)).as("Invalid result").isEqualTo(("\"" + body + "\""));
+		assertThat(outputMessage.getHeaders().getContentType()).as("Invalid content-type").isEqualTo(contentType);
+	}
+
+	@Test
+	void readInvalidJson() {
+		String body = "FooBar";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "json"));
+		assertThatExceptionOfType(HttpMessageNotReadableException.class)
+				.isThrownBy(() -> converter.read(MyBean.class, inputMessage));
+	}
+
+	@Test
+	void readValidJsonWithUnknownProperty() throws IOException {
+		String body = "{\"string\":\"string\",\"unknownProperty\":\"value\"}";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "json"));
+		converter.read(MyBean.class, inputMessage);
+		// Assert no HttpMessageNotReadableException is thrown
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void readAndWriteGenerics() throws Exception {
+		JacksonJsonHttpMessageConverter converter = new JacksonJsonHttpMessageConverter() {
+			@Override
+			protected JavaType getJavaType(Type type, @Nullable Class<?> contextClass) {
+				if (type instanceof Class && List.class.isAssignableFrom((Class<?>)type)) {
+					return new ObjectMapper().getTypeFactory().constructCollectionType(ArrayList.class, MyBean.class);
+				}
+				else {
+					return super.getJavaType(type, contextClass);
+				}
+			}
+		};
+		String body = "[{" +
+				"\"bytes\":\"AQI=\"," +
+				"\"array\":[\"Foo\",\"Bar\"]," +
+				"\"number\":42," +
+				"\"string\":\"Foo\"," +
+				"\"bool\":true," +
+				"\"fraction\":42.0}]";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "json"));
+
+		List<MyBean> results = (List<MyBean>) converter.read(List.class, inputMessage);
+		assertThat(results).hasSize(1);
+		MyBean result = results.get(0);
+		assertThat(result.getString()).isEqualTo("Foo");
+		assertThat(result.getNumber()).isEqualTo(42);
+		assertThat(result.getFraction()).isCloseTo(42F, within(0F));
+		assertThat(result.getArray()).isEqualTo(new String[] {"Foo", "Bar"});
+		assertThat(result.isBool()).isTrue();
+		assertThat(result.getBytes()).isEqualTo(new byte[] {0x1, 0x2});
+
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		converter.write(results, MediaType.APPLICATION_JSON, outputMessage);
+		JSONAssert.assertEquals(body, outputMessage.getBodyAsString(StandardCharsets.UTF_8), true);
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void readAndWriteParameterizedType() throws Exception {
+		ParameterizedTypeReference<List<MyBean>> beansList = new ParameterizedTypeReference<>() {};
+
+		String body = "[{" +
+				"\"bytes\":\"AQI=\"," +
+				"\"array\":[\"Foo\",\"Bar\"]," +
+				"\"number\":42," +
+				"\"string\":\"Foo\"," +
+				"\"bool\":true," +
+				"\"fraction\":42.0}]";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(MediaType.APPLICATION_JSON);
+
+		JacksonJsonHttpMessageConverter converter = new JacksonJsonHttpMessageConverter();
+		List<MyBean> results = (List<MyBean>) converter.read(ResolvableType.forType(beansList), inputMessage, null);
+		assertThat(results).hasSize(1);
+		MyBean result = results.get(0);
+		assertThat(result.getString()).isEqualTo("Foo");
+		assertThat(result.getNumber()).isEqualTo(42);
+		assertThat(result.getFraction()).isCloseTo(42F, within(0F));
+		assertThat(result.getArray()).isEqualTo(new String[] {"Foo", "Bar"});
+		assertThat(result.isBool()).isTrue();
+		assertThat(result.getBytes()).isEqualTo(new byte[] {0x1, 0x2});
+
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		converter.write(results, ResolvableType.forType(beansList), MediaType.APPLICATION_JSON, outputMessage, null);
+		JSONAssert.assertEquals(body, outputMessage.getBodyAsString(StandardCharsets.UTF_8), true);
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void writeParameterizedBaseType() throws Exception {
+		ParameterizedTypeReference<List<MyBean>> beansList = new ParameterizedTypeReference<>() {};
+		ParameterizedTypeReference<List<MyBase>> baseList = new ParameterizedTypeReference<>() {};
+
+		String body = "[{" +
+				"\"bytes\":\"AQI=\"," +
+				"\"array\":[\"Foo\",\"Bar\"]," +
+				"\"number\":42," +
+				"\"string\":\"Foo\"," +
+				"\"bool\":true," +
+				"\"fraction\":42.0}]";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(MediaType.APPLICATION_JSON);
+
+		MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
+		List<MyBean> results = (List<MyBean>) converter.read(beansList.getType(), null, inputMessage);
+		assertThat(results).hasSize(1);
+		MyBean result = results.get(0);
+		assertThat(result.getString()).isEqualTo("Foo");
+		assertThat(result.getNumber()).isEqualTo(42);
+		assertThat(result.getFraction()).isCloseTo(42F, within(0F));
+		assertThat(result.getArray()).isEqualTo(new String[] {"Foo", "Bar"});
+		assertThat(result.isBool()).isTrue();
+		assertThat(result.getBytes()).isEqualTo(new byte[] {0x1, 0x2});
+
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		converter.write(results, baseList.getType(), MediaType.APPLICATION_JSON, outputMessage);
+		JSONAssert.assertEquals(body, outputMessage.getBodyAsString(StandardCharsets.UTF_8), true);
+	}
+
+	// gh-24498
+	@Test
+	void writeOptional() throws IOException {
+		ParameterizedTypeReference<Optional<MyParent>> optionalParent = new ParameterizedTypeReference<>() {};
+		Optional<MyParent> result = Optional.of(new Impl1());
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		converter.write(result, ResolvableType.forType(optionalParent.getType()),
+				MediaType.APPLICATION_JSON, outputMessage, null);
+
+		assertThat(outputMessage.getBodyAsString(StandardCharsets.UTF_8))
+				.contains("@type");
+	}
+
+	@Test
+	void prettyPrint() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		PrettyPrintBean bean = new PrettyPrintBean();
+		bean.setName("Jason");
+
+		ObjectMapper mapper = JsonMapper.builder().enable(SerializationFeature.INDENT_OUTPUT).build();
+		this.converter = new JacksonJsonHttpMessageConverter(mapper);
+		this.converter.write(bean, ResolvableType.forType(PrettyPrintBean.class),
+				MediaType.APPLICATION_JSON, outputMessage, null);
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+
+		assertThat(result).isEqualToNormalizingNewlines("""
+			{
+			\s "name" : "Jason"
+			}""");
+	}
+
+	@Test
+	void prettyPrintWithSse() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		outputMessage.getHeaders().setContentType(MediaType.TEXT_EVENT_STREAM);
+		PrettyPrintBean bean = new PrettyPrintBean();
+		bean.setName("Jason");
+
+		ObjectMapper mapper = JsonMapper.builder().enable(SerializationFeature.INDENT_OUTPUT).build();
+		this.converter = new JacksonJsonHttpMessageConverter(mapper);
+		this.converter.write(bean, ResolvableType.forType(PrettyPrintBean.class),
+				MediaType.APPLICATION_JSON, outputMessage, null);
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+
+		assertThat(result).isEqualTo("{\ndata:  \"name\" : \"Jason\"\ndata:}");
+	}
+
+	@Test
+	void prefixJson() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		this.converter.setPrefixJson(true);
+		this.converter.write("foo", ResolvableType.forType(String.class), MediaType.APPLICATION_JSON,
+				outputMessage, null);
+
+		assertThat(outputMessage.getBodyAsString(StandardCharsets.UTF_8)).isEqualTo(")]}', \"foo\"");
+	}
+
+	@Test
+	void prefixJsonCustom() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		this.converter.setJsonPrefix(")))");
+		this.converter.write("foo", ResolvableType.forType(String.class), MediaType.APPLICATION_JSON,
+				outputMessage, null);
+
+		assertThat(outputMessage.getBodyAsString(StandardCharsets.UTF_8)).isEqualTo(")))\"foo\"");
+	}
+
+	@Test
+	void fieldLevelJsonView() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		JacksonViewBean bean = new JacksonViewBean();
+		bean.setWithView1("with");
+		bean.setWithView2("with");
+		bean.setWithoutView("without");
+
+		Map<String, Object> hints = Collections.singletonMap(JsonView.class.getName(), MyJacksonView1.class);
+		this.converter.write(bean, ResolvableType.forType(JacksonViewBean.class), MediaType.APPLICATION_JSON,
+				outputMessage, hints);
+
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).contains("\"withView1\":\"with\"");
+		assertThat(result).doesNotContain("\"withView2\":\"with\"");
+		assertThat(result).doesNotContain("\"withoutView\":\"without\"");
+	}
+
+	@Test
+	void classLevelJsonView() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		JacksonViewBean bean = new JacksonViewBean();
+		bean.setWithView1("with");
+		bean.setWithView2("with");
+		bean.setWithoutView("without");
+
+		Map<String, Object> hints = Collections.singletonMap(JsonView.class.getName(), MyJacksonView3.class);
+		this.converter.write(bean, ResolvableType.forType(JacksonViewBean.class), MediaType.APPLICATION_JSON,
+				outputMessage, hints);
+
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).doesNotContain("\"withView1\":\"with\"");
+		assertThat(result).doesNotContain("\"withView2\":\"with\"");
+		assertThat(result).contains("\"withoutView\":\"without\"");
+	}
+
+	@Test
+	void filters() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		JacksonFilteredBean bean = new JacksonFilteredBean();
+		bean.setProperty1("value");
+		bean.setProperty2("value");
+
+
+		FilterProvider filters = new SimpleFilterProvider().addFilter("myJacksonFilter",
+				SimpleBeanPropertyFilter.serializeAllExcept("property2"));
+		Map<String, Object> hints = Collections.singletonMap(FilterProvider.class.getName(), filters);
+		this.converter.write(bean, ResolvableType.forType(JacksonFilteredBean.class), MediaType.APPLICATION_JSON,
+				outputMessage, hints);
+
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).contains("\"property1\":\"value\"");
+		assertThat(result).doesNotContain("\"property2\":\"value\"");
+	}
+
+	@Test  // SPR-13318
+	void writeSubType() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		MyBean bean = new MyBean();
+		bean.setString("Foo");
+		bean.setNumber(42);
+
+		this.converter.write(bean, ResolvableType.forType(MyInterface.class),
+				MediaType.APPLICATION_JSON, outputMessage, null);
+
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).contains("\"string\":\"Foo\"");
+		assertThat(result).contains("\"number\":42");
+	}
+
+	@Test  // SPR-13318
+	void writeSubTypeList() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		List<MyBean> beans = new ArrayList<>();
+		MyBean foo = new MyBean();
+		foo.setString("Foo");
+		foo.setNumber(42);
+		beans.add(foo);
+		MyBean bar = new MyBean();
+		bar.setString("Bar");
+		bar.setNumber(123);
+		beans.add(bar);
+		ParameterizedTypeReference<List<MyInterface>> typeReference =
+				new ParameterizedTypeReference<>() {};
+
+		this.converter.write(beans, ResolvableType.forType(typeReference), MediaType.APPLICATION_JSON,
+				outputMessage, null);
+
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).contains("\"string\":\"Foo\"");
+		assertThat(result).contains("\"number\":42");
+		assertThat(result).contains("\"string\":\"Bar\"");
+		assertThat(result).contains("\"number\":123");
+	}
+
+	@Test // gh-27511
+	void readWithNoDefaultConstructor() throws Exception {
+		String body = "{\"property1\":\"foo\",\"property2\":\"bar\"}";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(MediaType.APPLICATION_JSON);
+		BeanWithNoDefaultConstructor bean =
+				(BeanWithNoDefaultConstructor)converter.read(BeanWithNoDefaultConstructor.class, inputMessage);
+		assertThat(bean.property1).isEqualTo("foo");
+		assertThat(bean.property2).isEqualTo("bar");
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void readNonUnicode() throws Exception {
+		String body = "{\"føø\":\"bår\"}";
+		Charset charset = StandardCharsets.ISO_8859_1;
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(charset));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "json", charset));
+		HashMap<String, Object> result = (HashMap<String, Object>) this.converter.read(HashMap.class, inputMessage);
+
+		assertThat(result).containsExactly(entry("føø", "bår"));
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void readAscii() throws Exception {
+		String body = "{\"foo\":\"bar\"}";
+		Charset charset = StandardCharsets.US_ASCII;
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(charset));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "json", charset));
+		HashMap<String, Object> result = (HashMap<String, Object>) this.converter.read(HashMap.class, inputMessage);
+
+		assertThat(result).containsExactly(entry("foo", "bar"));
+	}
+
+	@Test
+	void writeAscii() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		Map<String,Object> body = new HashMap<>();
+		body.put("foo", "bar");
+		Charset charset = StandardCharsets.US_ASCII;
+		MediaType contentType = new MediaType("application", "json", charset);
+		converter.write(body, contentType, outputMessage);
+
+		String result = outputMessage.getBodyAsString(charset);
+		assertThat(result).isEqualTo("{\"foo\":\"bar\"}");
+		assertThat(outputMessage.getHeaders().getContentType()).as("Invalid content-type").isEqualTo(contentType);
+	}
+
+	@Test
+	void readWithCustomized() throws IOException {
+		JacksonJsonHttpMessageConverterWithCustomization customizedConverter =
+				new JacksonJsonHttpMessageConverterWithCustomization();
+		String body = "{\"property\":\"Value1\"}";
+		MockHttpInputMessage inputMessage1 = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		MockHttpInputMessage inputMessage2 = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage1.getHeaders().setContentType(new MediaType("application", "json"));
+		inputMessage2.getHeaders().setContentType(new MediaType("application", "json"));
+
+		assertThatExceptionOfType(HttpMessageNotReadableException.class)
+				.isThrownBy(() -> customizedConverter.read(MyCustomizedBean.class, inputMessage1));
+
+		MyCustomizedBean customizedResult = (MyCustomizedBean) converter.read(MyCustomizedBean.class, inputMessage2);
+		assertThat(customizedResult.getProperty()).isEqualTo(MyCustomEnum.VAL1);
+	}
+
+	@Test
+	void writeWithCustomized() throws IOException {
+		JacksonJsonHttpMessageConverterWithCustomization customizedConverter =
+				new JacksonJsonHttpMessageConverterWithCustomization();
+		MockHttpOutputMessage outputMessage1 = new MockHttpOutputMessage();
+		MockHttpOutputMessage outputMessage2 = new MockHttpOutputMessage();
+		MyCustomizedBean body = new MyCustomizedBean();
+		body.setProperty(MyCustomEnum.VAL2);
+		converter.write(body, null, outputMessage1);
+		customizedConverter.write(body, null, outputMessage2);
+		String result1 = outputMessage1.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result1).contains("\"property\":\"Value2\"");
+		String result2 = outputMessage2.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result2).contains("\"property\":\"VAL2\"");
+	}
+
+	@Test
+	void repeatableWrites() throws IOException {
+		MockHttpOutputMessage outputMessage1 = new MockHttpOutputMessage();
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		converter.write(body, null, outputMessage1);
+		String result = outputMessage1.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).contains("\"string\":\"Foo\"");
+
+		MockHttpOutputMessage outputMessage2 = new MockHttpOutputMessage();
+		converter.write(body, null, outputMessage2);
+		result = outputMessage2.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).contains("\"string\":\"Foo\"");
+	}
+
+
+
+	interface MyInterface {
+
+		String getString();
+
+		void setString(String string);
+	}
+
+
+	public static class MyBase implements MyInterface {
+
+		private String string;
+
+		@Override
+		public String getString() {
+			return string;
+		}
+
+		@Override
+		public void setString(String string) {
+			this.string = string;
+		}
+	}
+
+
+	public static class MyBean extends MyBase {
+
+		private int number;
+
+		private float fraction;
+
+		private String[] array;
+
+		private boolean bool;
+
+		private byte[] bytes;
+
+		public int getNumber() {
+			return number;
+		}
+
+		public void setNumber(int number) {
+			this.number = number;
+		}
+
+		public float getFraction() {
+			return fraction;
+		}
+
+		public void setFraction(float fraction) {
+			this.fraction = fraction;
+		}
+
+		public String[] getArray() {
+			return array;
+		}
+
+		public void setArray(String[] array) {
+			this.array = array;
+		}
+
+		public boolean isBool() {
+			return bool;
+		}
+
+		public void setBool(boolean bool) {
+			this.bool = bool;
+		}
+
+		public byte[] getBytes() {
+			return bytes;
+		}
+
+		public void setBytes(byte[] bytes) {
+			this.bytes = bytes;
+		}
+	}
+
+
+	public static class PrettyPrintBean {
+
+		private String name;
+
+		public String getName() {
+			return name;
+		}
+
+		public void setName(String name) {
+			this.name = name;
+		}
+	}
+
+
+	private interface MyJacksonView1 {}
+
+	private interface MyJacksonView2 {}
+
+	private interface MyJacksonView3 {}
+
+
+	@SuppressWarnings("unused")
+	@JsonView(MyJacksonView3.class)
+	private static class JacksonViewBean {
+
+		@JsonView(MyJacksonView1.class)
+		private String withView1;
+
+		@JsonView(MyJacksonView2.class)
+		private String withView2;
+
+		private String withoutView;
+
+		public String getWithView1() {
+			return withView1;
+		}
+
+		public void setWithView1(String withView1) {
+			this.withView1 = withView1;
+		}
+
+		public String getWithView2() {
+			return withView2;
+		}
+
+		public void setWithView2(String withView2) {
+			this.withView2 = withView2;
+		}
+
+		public String getWithoutView() {
+			return withoutView;
+		}
+
+		public void setWithoutView(String withoutView) {
+			this.withoutView = withoutView;
+		}
+	}
+
+
+	@JsonFilter("myJacksonFilter")
+	@SuppressWarnings("unused")
+	private static class JacksonFilteredBean {
+
+		private String property1;
+
+		private String property2;
+
+		public String getProperty1() {
+			return property1;
+		}
+
+		public void setProperty1(String property1) {
+			this.property1 = property1;
+		}
+
+		public String getProperty2() {
+			return property2;
+		}
+
+		public void setProperty2(String property2) {
+			this.property2 = property2;
+		}
+	}
+
+
+	@SuppressWarnings("unused")
+	private static class BeanWithNoDefaultConstructor {
+
+		private final String property1;
+
+		private final String property2;
+
+		public BeanWithNoDefaultConstructor(String property1, String property2) {
+			this.property1 = property1;
+			this.property2 = property2;
+		}
+
+		public String getProperty1() {
+			return property1;
+		}
+
+		public String getProperty2() {
+			return property2;
+		}
+	}
+
+	public static class MyCustomizedBean {
+
+		private MyCustomEnum property;
+
+		public MyCustomEnum getProperty() {
+			return property;
+		}
+
+		public void setProperty(MyCustomEnum property) {
+			this.property = property;
+		}
+	}
+
+	public enum MyCustomEnum {
+		VAL1,
+		VAL2;
+
+		@Override
+		public String toString() {
+			return this == VAL1 ? "Value1" : "Value2";
+		}
+	}
+
+	@JsonTypeInfo(use = JsonTypeInfo.Id.NAME)
+	@JsonSubTypes(value = {@JsonSubTypes.Type(value = Impl1.class),
+			@JsonSubTypes.Type(value = Impl2.class)})
+	public interface MyParent {
+	}
+
+	public static class Impl1 implements MyParent {
+	}
+
+	public static class Impl2 implements MyParent {
+	}
+
+	private static class JacksonJsonHttpMessageConverterWithCustomization extends JacksonJsonHttpMessageConverter {
+
+		@Override
+		protected ObjectReader customizeReader(ObjectReader reader, JavaType javaType) {
+			return reader.without(EnumFeature.READ_ENUMS_USING_TO_STRING);
+		}
+
+		@Override
+		protected ObjectWriter customizeWriter(ObjectWriter writer, @Nullable JavaType javaType, @Nullable MediaType contentType) {
+			return writer.without(EnumFeature.WRITE_ENUMS_USING_TO_STRING);
+		}
+	}
+
+}

spring-web/src/test/java/org/springframework/http/converter/smile/JacksonSmileHttpMessageConverterTests.java

@@ -0,0 +1,157 @@
+/*
+ * Copyright 2002-2025 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.http.converter.smile;
+
+import java.io.IOException;
+
+import org.junit.jupiter.api.Test;
+import tools.jackson.dataformat.smile.SmileMapper;
+
+import org.springframework.http.MediaType;
+import org.springframework.web.testfixture.http.MockHttpInputMessage;
+import org.springframework.web.testfixture.http.MockHttpOutputMessage;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.within;
+
+/**
+ * Jackson 3.x Smile converter tests.
+ *
+ * @author Sebastien Deleuze
+ */
+class JacksonSmileHttpMessageConverterTests {
+
+	private final JacksonSmileHttpMessageConverter converter = new JacksonSmileHttpMessageConverter();
+	private final SmileMapper mapper = SmileMapper.builder().build();
+
+
+	@Test
+	void canRead() {
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "x-jackson-smile"))).isTrue();
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "json"))).isFalse();
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "xml"))).isFalse();
+	}
+
+	@Test
+	void canWrite() {
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "x-jackson-smile"))).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "json"))).isFalse();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "xml"))).isFalse();
+	}
+
+	@Test
+	void read() throws IOException {
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		body.setNumber(42);
+		body.setFraction(42F);
+		body.setArray(new String[]{"Foo", "Bar"});
+		body.setBool(true);
+		body.setBytes(new byte[]{0x1, 0x2});
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(mapper.writeValueAsBytes(body));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "x-jackson-smile"));
+		MyBean result = (MyBean) converter.read(MyBean.class, inputMessage);
+		assertThat(result.getString()).isEqualTo("Foo");
+		assertThat(result.getNumber()).isEqualTo(42);
+		assertThat(result.getFraction()).isCloseTo(42F, within(0F));
+
+		assertThat(result.getArray()).isEqualTo(new String[]{"Foo", "Bar"});
+		assertThat(result.isBool()).isTrue();
+		assertThat(result.getBytes()).isEqualTo(new byte[]{0x1, 0x2});
+	}
+
+	@Test
+	void write() throws IOException {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		body.setNumber(42);
+		body.setFraction(42F);
+		body.setArray(new String[]{"Foo", "Bar"});
+		body.setBool(true);
+		body.setBytes(new byte[]{0x1, 0x2});
+		converter.write(body, null, outputMessage);
+		assertThat(outputMessage.getBodyAsBytes()).isEqualTo(mapper.writeValueAsBytes(body));
+		assertThat(outputMessage.getHeaders().getContentType())
+				.as("Invalid content-type").isEqualTo(new MediaType("application", "x-jackson-smile"));
+	}
+
+
+	public static class MyBean {
+
+		private String string;
+
+		private int number;
+
+		private float fraction;
+
+		private String[] array;
+
+		private boolean bool;
+
+		private byte[] bytes;
+
+		public byte[] getBytes() {
+			return bytes;
+		}
+
+		public void setBytes(byte[] bytes) {
+			this.bytes = bytes;
+		}
+
+		public boolean isBool() {
+			return bool;
+		}
+
+		public void setBool(boolean bool) {
+			this.bool = bool;
+		}
+
+		public String getString() {
+			return string;
+		}
+
+		public void setString(String string) {
+			this.string = string;
+		}
+
+		public int getNumber() {
+			return number;
+		}
+
+		public void setNumber(int number) {
+			this.number = number;
+		}
+
+		public float getFraction() {
+			return fraction;
+		}
+
+		public void setFraction(float fraction) {
+			this.fraction = fraction;
+		}
+
+		public String[] getArray() {
+			return array;
+		}
+
+		public void setArray(String[] array) {
+			this.array = array;
+		}
+	}
+
+}

spring-web/src/test/java/org/springframework/http/converter/xml/JacksonXmlHttpMessageConverterTests.java

@@ -0,0 +1,319 @@
+/*
+ * Copyright 2002-2025 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.http.converter.xml;
+
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.util.Collections;
+import java.util.Map;
+
+import com.fasterxml.jackson.annotation.JsonView;
+import org.junit.jupiter.api.Test;
+import tools.jackson.dataformat.xml.XmlMapper;
+
+import org.springframework.core.ResolvableType;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.http.MediaType;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.testfixture.http.MockHttpInputMessage;
+import org.springframework.web.testfixture.http.MockHttpOutputMessage;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+import static org.assertj.core.api.Assertions.within;
+
+/**
+ * Jackson 3.x XML converter tests.
+ *
+ * @author Sebastien Deleuze
+ */
+class JacksonXmlHttpMessageConverterTests {
+
+	private final JacksonXmlHttpMessageConverter converter = new JacksonXmlHttpMessageConverter();
+
+
+	@Test
+	void canRead() {
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "xml"))).isTrue();
+		assertThat(converter.canRead(MyBean.class, new MediaType("text", "xml"))).isTrue();
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "soap+xml"))).isTrue();
+		assertThat(converter.canRead(MyBean.class, new MediaType("text", "xml", StandardCharsets.UTF_8))).isTrue();
+		assertThat(converter.canRead(MyBean.class, new MediaType("text", "xml", StandardCharsets.ISO_8859_1))).isTrue();
+	}
+
+	@Test
+	void canWrite() {
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "xml"))).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("text", "xml"))).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "soap+xml"))).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("text", "xml", StandardCharsets.UTF_8))).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("text", "xml", StandardCharsets.ISO_8859_1))).isFalse();
+	}
+
+	@Test
+	void read() throws IOException {
+		String body = "<MyBean>" +
+				"<string>Foo</string>" +
+				"<number>42</number>" +
+				"<fraction>42.0</fraction>" +
+				"<array><array>Foo</array>" +
+				"<array>Bar</array></array>" +
+				"<bool>true</bool>" +
+				"<bytes>AQI=</bytes></MyBean>";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "xml"));
+		MyBean result = (MyBean) converter.read(MyBean.class, inputMessage);
+		assertThat(result.getString()).isEqualTo("Foo");
+		assertThat(result.getNumber()).isEqualTo(42);
+		assertThat(result.getFraction()).isCloseTo(42F, within(0F));
+		assertThat(result.getArray()).isEqualTo(new String[]{"Foo", "Bar"});
+		assertThat(result.isBool()).isTrue();
+		assertThat(result.getBytes()).isEqualTo(new byte[]{0x1, 0x2});
+	}
+
+	@Test
+	void write() throws IOException {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		body.setNumber(42);
+		body.setFraction(42F);
+		body.setArray(new String[]{"Foo", "Bar"});
+		body.setBool(true);
+		body.setBytes(new byte[]{0x1, 0x2});
+		converter.write(body, null, outputMessage);
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).contains("<string>Foo</string>");
+		assertThat(result).contains("<number>42</number>");
+		assertThat(result).contains("<fraction>42.0</fraction>");
+		assertThat(result).contains("<array><array>Foo</array><array>Bar</array></array>");
+		assertThat(result).contains("<bool>true</bool>");
+		assertThat(result).contains("<bytes>AQI=</bytes>");
+		assertThat(outputMessage.getHeaders().getContentType())
+				.as("Invalid content-type").isEqualTo(new MediaType("application", "xml", StandardCharsets.UTF_8));
+	}
+
+	@Test
+	void readInvalidXml() {
+		String body = "FooBar";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(MediaType.APPLICATION_XML);
+		assertThatExceptionOfType(HttpMessageNotReadableException.class).isThrownBy(() ->
+				converter.read(MyBean.class, inputMessage));
+	}
+
+	@Test
+	void readValidXmlWithUnknownProperty() throws IOException {
+		String body = "<MyBean><string>string</string><unknownProperty>value</unknownProperty></MyBean>";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(MediaType.APPLICATION_XML);
+		converter.read(MyBean.class, inputMessage);
+		// Assert no HttpMessageNotReadableException is thrown
+	}
+
+	@Test
+	void jsonView() throws Exception {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		JacksonViewBean bean = new JacksonViewBean();
+		bean.setWithView1("with");
+		bean.setWithView2("with");
+		bean.setWithoutView("without");
+
+		Map<String, Object> hints = Collections.singletonMap(JsonView.class.getName(), MyJacksonView1.class);
+		this.converter.write(bean, ResolvableType.forClass(JacksonViewBean.class), null, outputMessage, hints);
+
+		String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
+		assertThat(result).contains("<withView1>with</withView1>");
+		assertThat(result).doesNotContain("<withView2>with</withView2>");
+		assertThat(result).doesNotContain("<withoutView>without</withoutView>");
+	}
+
+	@Test
+	void customXmlMapper() {
+		new JacksonXmlHttpMessageConverter(new MyXmlMapper());
+		// Assert no exception is thrown
+	}
+
+	@Test
+	void readWithExternalReference() throws IOException {
+		String body = "<!DOCTYPE MyBean SYSTEM \"https://192.168.28.42/1.jsp\" [" +
+				"  <!ELEMENT root ANY >\n" +
+				"  <!ENTITY ext SYSTEM \"" +
+				new ClassPathResource("external.txt", getClass()).getURI() +
+				"\" >]><MyBean><string>&ext;</string></MyBean>";
+
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(MediaType.APPLICATION_XML);
+
+		assertThatExceptionOfType(HttpMessageNotReadableException.class).isThrownBy(() ->
+				this.converter.read(MyBean.class, inputMessage));
+	}
+
+	@Test
+	void readWithXmlBomb() {
+		// https://en.wikipedia.org/wiki/Billion_laughs
+		// https://msdn.microsoft.com/en-us/magazine/ee335713.aspx
+		String body = """
+				<?xml version="1.0"?>
+				<!DOCTYPE lolz [
+					<!ENTITY lol "lol">
+					<!ELEMENT lolz (#PCDATA)>
+					<!ENTITY lol1 "&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;">
+					<!ENTITY lol2 "&lol1;&lol1;&lol1;&lol1;&lol1;&lol1;&lol1;&lol1;&lol1;&lol1;">
+					<!ENTITY lol3 "&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;">
+					<!ENTITY lol4 "&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;">
+					<!ENTITY lol5 "&lol4;&lol4;&lol4;&lol4;&lol4;&lol4;&lol4;&lol4;&lol4;&lol4;">
+					<!ENTITY lol6 "&lol5;&lol5;&lol5;&lol5;&lol5;&lol5;&lol5;&lol5;&lol5;&lol5;">
+					<!ENTITY lol7 "&lol6;&lol6;&lol6;&lol6;&lol6;&lol6;&lol6;&lol6;&lol6;&lol6;">
+					<!ENTITY lol8 "&lol7;&lol7;&lol7;&lol7;&lol7;&lol7;&lol7;&lol7;&lol7;&lol7;">
+					<!ENTITY lol9 "&lol8;&lol8;&lol8;&lol8;&lol8;&lol8;&lol8;&lol8;&lol8;&lol8;">
+				]>
+				<MyBean>&lol9;</MyBean>""";
+
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(StandardCharsets.UTF_8));
+		inputMessage.getHeaders().setContentType(MediaType.APPLICATION_XML);
+
+		assertThatExceptionOfType(HttpMessageNotReadableException.class).isThrownBy(() ->
+				this.converter.read(MyBean.class, inputMessage));
+	}
+
+	@Test
+	void readNonUnicode() throws Exception {
+		String body = "<MyBean>" +
+				"<string>føø bår</string>" +
+				"</MyBean>";
+
+		Charset charset = StandardCharsets.ISO_8859_1;
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes(charset));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "xml", charset));
+		MyBean result = (MyBean) converter.read(MyBean.class, inputMessage);
+		assertThat(result.getString()).isEqualTo("føø bår");
+	}
+
+
+
+	public static class MyBean {
+
+		private String string;
+
+		private int number;
+
+		private float fraction;
+
+		private String[] array;
+
+		private boolean bool;
+
+		private byte[] bytes;
+
+		public byte[] getBytes() {
+			return bytes;
+		}
+
+		public void setBytes(byte[] bytes) {
+			this.bytes = bytes;
+		}
+
+		public boolean isBool() {
+			return bool;
+		}
+
+		public void setBool(boolean bool) {
+			this.bool = bool;
+		}
+
+		public String getString() {
+			return string;
+		}
+
+		public void setString(String string) {
+			this.string = string;
+		}
+
+		public int getNumber() {
+			return number;
+		}
+
+		public void setNumber(int number) {
+			this.number = number;
+		}
+
+		public float getFraction() {
+			return fraction;
+		}
+
+		public void setFraction(float fraction) {
+			this.fraction = fraction;
+		}
+
+		public String[] getArray() {
+			return array;
+		}
+
+		public void setArray(String[] array) {
+			this.array = array;
+		}
+	}
+
+
+	private interface MyJacksonView1 {}
+
+	private interface MyJacksonView2 {}
+
+
+	@SuppressWarnings("unused")
+	private static class JacksonViewBean {
+
+		@JsonView(MyJacksonView1.class)
+		private String withView1;
+
+		@JsonView(MyJacksonView2.class)
+		private String withView2;
+
+		private String withoutView;
+
+		public String getWithView1() {
+			return withView1;
+		}
+
+		public void setWithView1(String withView1) {
+			this.withView1 = withView1;
+		}
+
+		public String getWithView2() {
+			return withView2;
+		}
+
+		public void setWithView2(String withView2) {
+			this.withView2 = withView2;
+		}
+
+		public String getWithoutView() {
+			return withoutView;
+		}
+
+		public void setWithoutView(String withoutView) {
+			this.withoutView = withoutView;
+		}
+	}
+
+
+	private static class MyXmlMapper extends XmlMapper {
+	}
+
+}

spring-web/src/test/java/org/springframework/http/converter/yaml/JacksonYamlHttpMessageConverterTests.java

@@ -0,0 +1,157 @@
+/*
+ * Copyright 2002-2025 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.http.converter.yaml;
+
+import java.io.IOException;
+
+import org.junit.jupiter.api.Test;
+import tools.jackson.dataformat.yaml.YAMLMapper;
+
+import org.springframework.http.MediaType;
+import org.springframework.web.testfixture.http.MockHttpInputMessage;
+import org.springframework.web.testfixture.http.MockHttpOutputMessage;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.within;
+
+/**
+ * Jackson 3.x YAML converter tests.
+ *
+ * @author Sebastien Deleuze
+ */
+class JacksonYamlHttpMessageConverterTests {
+
+	private final JacksonYamlHttpMessageConverter converter = new JacksonYamlHttpMessageConverter();
+	private final YAMLMapper mapper = YAMLMapper.builder().build();
+
+
+	@Test
+	void canRead() {
+		assertThat(converter.canRead(MyBean.class, MediaType.APPLICATION_YAML)).isTrue();
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "json"))).isFalse();
+		assertThat(converter.canRead(MyBean.class, new MediaType("application", "xml"))).isFalse();
+	}
+
+	@Test
+	void canWrite() {
+		assertThat(converter.canWrite(MyBean.class, MediaType.APPLICATION_YAML)).isTrue();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "json"))).isFalse();
+		assertThat(converter.canWrite(MyBean.class, new MediaType("application", "xml"))).isFalse();
+	}
+
+	@Test
+	void read() throws IOException {
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		body.setNumber(42);
+		body.setFraction(42F);
+		body.setArray(new String[]{"Foo", "Bar"});
+		body.setBool(true);
+		body.setBytes(new byte[]{0x1, 0x2});
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(mapper.writeValueAsBytes(body));
+		inputMessage.getHeaders().setContentType(MediaType.APPLICATION_YAML);
+		MyBean result = (MyBean) converter.read(MyBean.class, inputMessage);
+		assertThat(result.getString()).isEqualTo("Foo");
+		assertThat(result.getNumber()).isEqualTo(42);
+		assertThat(result.getFraction()).isCloseTo(42F, within(0F));
+
+		assertThat(result.getArray()).isEqualTo(new String[]{"Foo", "Bar"});
+		assertThat(result.isBool()).isTrue();
+		assertThat(result.getBytes()).isEqualTo(new byte[]{0x1, 0x2});
+	}
+
+	@Test
+	void write() throws IOException {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		body.setNumber(42);
+		body.setFraction(42F);
+		body.setArray(new String[]{"Foo", "Bar"});
+		body.setBool(true);
+		body.setBytes(new byte[]{0x1, 0x2});
+		converter.write(body, null, outputMessage);
+		assertThat(outputMessage.getBodyAsBytes()).isEqualTo(mapper.writeValueAsBytes(body));
+		assertThat(outputMessage.getHeaders().getContentType())
+				.as("Invalid content-type").isEqualTo(MediaType.APPLICATION_YAML);
+	}
+
+
+	public static class MyBean {
+
+		private String string;
+
+		private int number;
+
+		private float fraction;
+
+		private String[] array;
+
+		private boolean bool;
+
+		private byte[] bytes;
+
+		public byte[] getBytes() {
+			return bytes;
+		}
+
+		public void setBytes(byte[] bytes) {
+			this.bytes = bytes;
+		}
+
+		public boolean isBool() {
+			return bool;
+		}
+
+		public void setBool(boolean bool) {
+			this.bool = bool;
+		}
+
+		public String getString() {
+			return string;
+		}
+
+		public void setString(String string) {
+			this.string = string;
+		}
+
+		public int getNumber() {
+			return number;
+		}
+
+		public void setNumber(int number) {
+			this.number = number;
+		}
+
+		public float getFraction() {
+			return fraction;
+		}
+
+		public void setFraction(float fraction) {
+			this.fraction = fraction;
+		}
+
+		public String[] getArray() {
+			return array;
+		}
+
+		public void setArray(String[] array) {
+			this.array = array;
+		}
+	}
+
+}

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

@@ -522,7 +522,7 @@ class RestClientIntegrationTests {
 		expectRequestCount(1);
 		expectRequest(request -> {
 			assertThat(request.getPath()).isEqualTo("/pojo/capitalize");
-			assertThat(request.getBody().readUtf8()).isEqualTo("{\"foo\":\"foofoo\",\"bar\":\"barbar\"}");
+			assertThat(request.getBody().readUtf8()).isEqualTo("{\"bar\":\"barbar\",\"foo\":\"foofoo\"}");
 			assertThat(request.getHeader(HttpHeaders.ACCEPT)).isEqualTo("application/json");
 			assertThat(request.getHeader(HttpHeaders.CONTENT_TYPE)).isEqualTo("application/json");
 		});

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -30,6 +30,7 @@ import java.util.stream.Stream;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonView;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.extension.RegisterExtension;
 import org.junit.jupiter.api.extension.TestExecutionExceptionHandler;
 import org.junit.jupiter.params.ParameterizedTest;
@@ -407,7 +408,8 @@ class RestTemplateIntegrationTests extends AbstractMockWebServerTests {
 	}
 
 	@ParameterizedRestTemplateTest
-	void jsonPostForObjectWithJacksonView(ClientHttpRequestFactory clientHttpRequestFactory) {
+	@Disabled("Use RestClient + upcoming hint management instead")
+	void jsonPostForObjectWithJacksonJsonView(ClientHttpRequestFactory clientHttpRequestFactory) {
 		setUpClient(clientHttpRequestFactory);
 
 		HttpHeaders entityHeaders = new HttpHeaders();

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

@@ -53,8 +53,8 @@ import org.springframework.http.converter.GenericHttpMessageConverter;
 import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.SmartHttpMessageConverter;
 import org.springframework.http.converter.StringHttpMessageConverter;
+import org.springframework.http.converter.json.JacksonJsonHttpMessageConverter;
 import org.springframework.http.converter.json.KotlinSerializationJsonHttpMessageConverter;
-import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.util.FileCopyUtils;
 import org.springframework.web.util.DefaultUriBuilderFactory;
 
@@ -113,7 +113,7 @@ class RestTemplateTests {
 		RestTemplate restTemplate = new RestTemplate();
 		List<HttpMessageConverter<?>> httpMessageConverters = restTemplate.getMessageConverters();
 		assertThat(httpMessageConverters).extracting("class").containsOnlyOnce(
-			MappingJackson2HttpMessageConverter.class
+			JacksonJsonHttpMessageConverter.class
 		);
 		assertThat(httpMessageConverters).extracting("class").doesNotContain(
 				KotlinSerializationJsonHttpMessageConverter.class

spring-webmvc/spring-webmvc.gradle

@@ -39,6 +39,12 @@ dependencies {
 	optional("org.jetbrains.kotlinx:kotlinx-serialization-protobuf")
 	optional("org.reactivestreams:reactive-streams")
 	optional("org.webjars:webjars-locator-lite")
+	optional("tools.jackson.core:jackson-databind")
+	optional("tools.jackson.dataformat:jackson-dataformat-smile")
+	optional("tools.jackson.dataformat:jackson-dataformat-cbor")
+	optional("tools.jackson.dataformat:jackson-dataformat-smile")
+	optional("tools.jackson.dataformat:jackson-dataformat-xml")
+	optional("tools.jackson.dataformat:jackson-dataformat-yaml")
 	testCompileOnly("com.google.code.findbugs:findbugs") {  // for groovy-templates
 		exclude group: "dom4j", module: "dom4j"
 	}

spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurationSupport.java

@@ -45,20 +45,25 @@ import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.ResourceHttpMessageConverter;
 import org.springframework.http.converter.ResourceRegionHttpMessageConverter;
 import org.springframework.http.converter.StringHttpMessageConverter;
+import org.springframework.http.converter.cbor.JacksonCborHttpMessageConverter;
 import org.springframework.http.converter.cbor.KotlinSerializationCborHttpMessageConverter;
 import org.springframework.http.converter.cbor.MappingJackson2CborHttpMessageConverter;
 import org.springframework.http.converter.feed.AtomFeedHttpMessageConverter;
 import org.springframework.http.converter.feed.RssChannelHttpMessageConverter;
 import org.springframework.http.converter.json.GsonHttpMessageConverter;
 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
+import org.springframework.http.converter.json.JacksonJsonHttpMessageConverter;
 import org.springframework.http.converter.json.JsonbHttpMessageConverter;
 import org.springframework.http.converter.json.KotlinSerializationJsonHttpMessageConverter;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.http.converter.protobuf.KotlinSerializationProtobufHttpMessageConverter;
+import org.springframework.http.converter.smile.JacksonSmileHttpMessageConverter;
 import org.springframework.http.converter.smile.MappingJackson2SmileHttpMessageConverter;
 import org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter;
+import org.springframework.http.converter.xml.JacksonXmlHttpMessageConverter;
 import org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter;
 import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter;
+import org.springframework.http.converter.yaml.JacksonYamlHttpMessageConverter;
 import org.springframework.http.converter.yaml.MappingJackson2YamlHttpMessageConverter;
 import org.springframework.util.AntPathMatcher;
 import org.springframework.util.Assert;
@@ -196,14 +201,24 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 
 	private static final boolean jaxb2Present;
 
+	private static final boolean jacksonPresent;
+
 	private static final boolean jackson2Present;
 
+	private static final boolean jacksonXmlPresent;
+
 	private static final boolean jackson2XmlPresent;
 
+	private static final boolean jacksonSmilePresent;
+
 	private static final boolean jackson2SmilePresent;
 
+	private static final boolean jacksonCborPresent;
+
 	private static final boolean jackson2CborPresent;
 
+	private static final boolean jacksonYamlPresent;
+
 	private static final boolean jackson2YamlPresent;
 
 	private static final boolean gsonPresent;
@@ -220,12 +235,17 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 		ClassLoader classLoader = WebMvcConfigurationSupport.class.getClassLoader();
 		romePresent = ClassUtils.isPresent("com.rometools.rome.feed.WireFeed", classLoader);
 		jaxb2Present = ClassUtils.isPresent("jakarta.xml.bind.Binder", classLoader);
+		jacksonPresent = ClassUtils.isPresent("tools.jackson.databind.ObjectMapper", classLoader);
 		jackson2Present = ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", classLoader) &&
 				ClassUtils.isPresent("com.fasterxml.jackson.core.JsonGenerator", classLoader);
-		jackson2XmlPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.xml.XmlMapper", classLoader);
-		jackson2SmilePresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.smile.SmileFactory", classLoader);
-		jackson2CborPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.cbor.CBORFactory", classLoader);
-		jackson2YamlPresent = ClassUtils.isPresent("com.fasterxml.jackson.dataformat.yaml.YAMLFactory", classLoader);
+		jacksonXmlPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.xml.XmlMapper", classLoader);
+		jackson2XmlPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.xml.XmlMapper", classLoader);
+		jacksonSmilePresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.smile.SmileMapper", classLoader);
+		jackson2SmilePresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.smile.SmileFactory", classLoader);
+		jacksonCborPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.cbor.CBORMapper", classLoader);
+		jackson2CborPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.cbor.CBORFactory", classLoader);
+		jacksonYamlPresent = jacksonPresent && ClassUtils.isPresent("tools.jackson.dataformat.yaml.YAMLMapper", classLoader);
+		jackson2YamlPresent = jackson2Present && ClassUtils.isPresent("com.fasterxml.jackson.dataformat.yaml.YAMLFactory", classLoader);
 		gsonPresent = ClassUtils.isPresent("com.google.gson.Gson", classLoader);
 		jsonbPresent = ClassUtils.isPresent("jakarta.json.bind.Jsonb", classLoader);
 		kotlinSerializationCborPresent = ClassUtils.isPresent("kotlinx.serialization.cbor.Cbor", classLoader);
@@ -445,19 +465,19 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 			map.put("atom", MediaType.APPLICATION_ATOM_XML);
 			map.put("rss", MediaType.APPLICATION_RSS_XML);
 		}
-		if (jaxb2Present || jackson2XmlPresent) {
+		if (jaxb2Present || jacksonXmlPresent || jackson2XmlPresent) {
 			map.put("xml", MediaType.APPLICATION_XML);
 		}
-		if (jackson2Present || gsonPresent || jsonbPresent || kotlinSerializationJsonPresent) {
+		if (jacksonPresent || jackson2Present || gsonPresent || jsonbPresent || kotlinSerializationJsonPresent) {
 			map.put("json", MediaType.APPLICATION_JSON);
 		}
-		if (jackson2SmilePresent) {
+		if (jacksonSmilePresent || jackson2SmilePresent) {
 			map.put("smile", MediaType.valueOf("application/x-jackson-smile"));
 		}
-		if (jackson2CborPresent || kotlinSerializationCborPresent) {
+		if (jacksonCborPresent || jackson2CborPresent || kotlinSerializationCborPresent) {
 			map.put("cbor", MediaType.APPLICATION_CBOR);
 		}
-		if (jackson2YamlPresent) {
+		if (jacksonYamlPresent || jackson2YamlPresent) {
 			map.put("yaml", MediaType.APPLICATION_YAML);
 		}
 		return map;
@@ -679,7 +699,7 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 		adapter.setCustomReturnValueHandlers(getReturnValueHandlers());
 		adapter.setErrorResponseInterceptors(getErrorResponseInterceptors());
 
-		if (jackson2Present) {
+		if (jacksonPresent || jackson2Present) {
 			adapter.setRequestBodyAdvice(Collections.singletonList(new JsonViewRequestBodyAdvice()));
 			adapter.setResponseBodyAdvice(Collections.singletonList(new JsonViewResponseBodyAdvice()));
 		}
@@ -909,7 +929,10 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 			messageConverters.add(new RssChannelHttpMessageConverter());
 		}
 
-		if (jackson2XmlPresent) {
+		if (jacksonXmlPresent) {
+			messageConverters.add(new JacksonXmlHttpMessageConverter());
+		}
+		else if (jackson2XmlPresent) {
 			Jackson2ObjectMapperBuilder builder = Jackson2ObjectMapperBuilder.xml();
 			if (this.applicationContext != null) {
 				builder.applicationContext(this.applicationContext);
@@ -924,7 +947,10 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 			messageConverters.add(new KotlinSerializationProtobufHttpMessageConverter());
 		}
 
-		if (jackson2Present) {
+		if (jacksonPresent) {
+			messageConverters.add(new JacksonJsonHttpMessageConverter());
+		}
+		else if (jackson2Present) {
 			Jackson2ObjectMapperBuilder builder = Jackson2ObjectMapperBuilder.json();
 			if (this.applicationContext != null) {
 				builder.applicationContext(this.applicationContext);
@@ -941,14 +967,21 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 			messageConverters.add(new KotlinSerializationJsonHttpMessageConverter());
 		}
 
-		if (jackson2SmilePresent) {
+		if (jacksonSmilePresent) {
+			messageConverters.add(new JacksonSmileHttpMessageConverter());
+		}
+		else if (jackson2SmilePresent) {
 			Jackson2ObjectMapperBuilder builder = Jackson2ObjectMapperBuilder.smile();
 			if (this.applicationContext != null) {
 				builder.applicationContext(this.applicationContext);
 			}
 			messageConverters.add(new MappingJackson2SmileHttpMessageConverter(builder.build()));
 		}
-		if (jackson2CborPresent) {
+
+		if (jacksonCborPresent) {
+			messageConverters.add(new JacksonCborHttpMessageConverter());
+		}
+		else if (jackson2CborPresent) {
 			Jackson2ObjectMapperBuilder builder = Jackson2ObjectMapperBuilder.cbor();
 			if (this.applicationContext != null) {
 				builder.applicationContext(this.applicationContext);
@@ -958,7 +991,11 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 		else if (kotlinSerializationCborPresent) {
 			messageConverters.add(new KotlinSerializationCborHttpMessageConverter());
 		}
-		if (jackson2YamlPresent) {
+
+		if (jacksonYamlPresent) {
+			messageConverters.add(new JacksonYamlHttpMessageConverter());
+		}
+		else if (jackson2YamlPresent) {
 			Jackson2ObjectMapperBuilder builder = Jackson2ObjectMapperBuilder.yaml();
 			if (this.applicationContext != null) {
 				builder.applicationContext(this.applicationContext);
@@ -1084,7 +1121,7 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 		exceptionHandlerResolver.setCustomArgumentResolvers(getArgumentResolvers());
 		exceptionHandlerResolver.setCustomReturnValueHandlers(getReturnValueHandlers());
 		exceptionHandlerResolver.setErrorResponseInterceptors(getErrorResponseInterceptors());
-		if (jackson2Present) {
+		if (jacksonPresent || jackson2Present) {
 			exceptionHandlerResolver.setResponseBodyAdvice(
 					Collections.singletonList(new JsonViewResponseBodyAdvice()));
 		}

spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/MethodValidationTests.java

@@ -50,7 +50,7 @@ import org.springframework.context.MessageSourceResolvable;
 import org.springframework.context.i18n.LocaleContextHolder;
 import org.springframework.http.MediaType;
 import org.springframework.http.converter.StringHttpMessageConverter;
-import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
+import org.springframework.http.converter.json.JacksonJsonHttpMessageConverter;
 import org.springframework.validation.Errors;
 import org.springframework.validation.ObjectError;
 import org.springframework.validation.Validator;
@@ -138,7 +138,7 @@ class MethodValidationTests {
 		handlerAdapter.setApplicationContext(context);
 		handlerAdapter.setBeanFactory(context.getBeanFactory());
 		handlerAdapter.setMessageConverters(
-				List.of(new StringHttpMessageConverter(), new MappingJackson2HttpMessageConverter()));
+				List.of(new StringHttpMessageConverter(), new JacksonJsonHttpMessageConverter()));
 		handlerAdapter.afterPropertiesSet();
 		return handlerAdapter;
 	}

spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/RequestResponseBodyMethodProcessorTests.java

@@ -28,12 +28,13 @@ import java.util.List;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonView;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.SerializationFeature;
 import org.jspecify.annotations.Nullable;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.skyscreamer.jsonassert.JSONAssert;
 import org.xmlunit.assertj.XmlAssert;
+import tools.jackson.databind.SerializationFeature;
+import tools.jackson.databind.json.JsonMapper;
 
 import org.springframework.aop.framework.ProxyFactory;
 import org.springframework.aop.target.SingletonTargetSource;
@@ -51,8 +52,10 @@ import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.HttpMessageNotReadableException;
 import org.springframework.http.converter.ResourceHttpMessageConverter;
 import org.springframework.http.converter.StringHttpMessageConverter;
+import org.springframework.http.converter.json.JacksonJsonHttpMessageConverter;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter;
+import org.springframework.http.converter.xml.JacksonXmlHttpMessageConverter;
 import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter;
 import org.springframework.util.MultiValueMap;
 import org.springframework.util.ReflectionUtils;
@@ -69,8 +72,6 @@ import org.springframework.web.context.request.NativeWebRequest;
 import org.springframework.web.context.request.ServletWebRequest;
 import org.springframework.web.method.HandlerMethod;
 import org.springframework.web.method.support.ModelAndViewContainer;
-import org.springframework.web.servlet.ModelAndView;
-import org.springframework.web.servlet.view.json.MappingJackson2JsonView;
 import org.springframework.web.testfixture.servlet.MockHttpServletRequest;
 import org.springframework.web.testfixture.servlet.MockHttpServletResponse;
 import org.springframework.web.util.WebUtils;
@@ -116,7 +117,7 @@ class RequestResponseBodyMethodProcessorTests {
 		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
 		this.servletRequest.setContentType(MediaType.APPLICATION_JSON_VALUE);
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
 		@SuppressWarnings("unchecked")
@@ -151,7 +152,7 @@ class RequestResponseBodyMethodProcessorTests {
 		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
 		this.servletRequest.setContentType("application/json");
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
 		SimpleBean result = (SimpleBean) processor.resolveArgument(
@@ -207,7 +208,7 @@ class RequestResponseBodyMethodProcessorTests {
 		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
 		this.servletRequest.setContentType(MediaType.APPLICATION_JSON_VALUE);
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
 		SimpleBean result = (SimpleBean) processor.resolveArgument(methodParam, container, request, factory);
@@ -226,7 +227,7 @@ class RequestResponseBodyMethodProcessorTests {
 		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
 		this.servletRequest.setContentType(MediaType.APPLICATION_JSON_VALUE);
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
 		@SuppressWarnings("unchecked")
@@ -246,7 +247,7 @@ class RequestResponseBodyMethodProcessorTests {
 		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
 		this.servletRequest.setContentType(MediaType.APPLICATION_JSON_VALUE);
 
-		HttpMessageConverter<Object> target = new MappingJackson2HttpMessageConverter();
+		HttpMessageConverter<Object> target = new JacksonJsonHttpMessageConverter();
 		HttpMessageConverter<?> proxy = ProxyFactory.getProxy(HttpMessageConverter.class, new SingletonTargetSource(target));
 		List<HttpMessageConverter<?>> converters = List.of(proxy);
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
@@ -262,7 +263,7 @@ class RequestResponseBodyMethodProcessorTests {
 		this.servletRequest.addHeader("Accept", "text/plain; q=0.5, application/json");
 
 		List<HttpMessageConverter<?>> converters =
-				List.of(new MappingJackson2HttpMessageConverter(), new StringHttpMessageConverter());
+				List.of(new JacksonJsonHttpMessageConverter(), new StringHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
 		processor.writeWithMessageConverters("Foo", returnTypeString, request);
@@ -331,15 +332,14 @@ class RequestResponseBodyMethodProcessorTests {
 
 		this.servletRequest.addHeader("Accept", halFormsMediaType + "," + halMediaType);
 
-		ObjectMapper objectMapper = new ObjectMapper();
-		objectMapper.configure(SerializationFeature.INDENT_OUTPUT, true);
+		JsonMapper mapper = JsonMapper.builder().enable(SerializationFeature.INDENT_OUTPUT).build();
 
 		SimpleBean simpleBean = new SimpleBean();
 		simpleBean.setId(12L);
 		simpleBean.setName("Jason");
 
-		MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
-		converter.registerObjectMappersForType(SimpleBean.class, map -> map.put(halMediaType, objectMapper));
+		JacksonJsonHttpMessageConverter converter = new JacksonJsonHttpMessageConverter();
+		converter.registerObjectMappersForType(SimpleBean.class, map -> map.put(halMediaType, mapper));
 		RequestResponseBodyMethodProcessor processor =
 				new RequestResponseBodyMethodProcessor(List.of(converter));
 		MethodParameter returnType = new MethodParameter(getClass().getDeclaredMethod("getSimpleBean"), -1);
@@ -380,7 +380,7 @@ class RequestResponseBodyMethodProcessorTests {
 
 		RequestResponseBodyMethodProcessor processor =
 				new RequestResponseBodyMethodProcessor(List.of(
-						new MappingJackson2HttpMessageConverter(), new MappingJackson2XmlHttpMessageConverter()));
+						new JacksonJsonHttpMessageConverter(), new JacksonXmlHttpMessageConverter()));
 
 		MethodParameter returnType =
 				new MethodParameter(getClass().getDeclaredMethod("handleAndReturnProblemDetail"), -1);
@@ -393,10 +393,10 @@ class RequestResponseBodyMethodProcessorTests {
 		if (expectedContentType.equals(MediaType.APPLICATION_PROBLEM_XML_VALUE)) {
 			XmlAssert.assertThat(this.servletResponse.getContentAsString()).and("""
 						<problem xmlns="urn:ietf:rfc:7807">
-							<type>about:blank</type>
-							<title>Bad Request</title>
 							<status>400</status>
 							<instance>/path</instance>
+							<title>Bad Request</title>
+							<type>about:blank</type>
 						</problem>""")
 					.ignoreWhitespace()
 					.areIdentical();
@@ -413,6 +413,7 @@ class RequestResponseBodyMethodProcessorTests {
 	}
 
 	@Test
+	@Disabled("https://github.com/FasterXML/jackson-dataformat-xml/issues/757")
 	void problemDetailWhenProblemXmlRequested() throws Exception {
 		this.servletRequest.addHeader("Accept", MediaType.APPLICATION_PROBLEM_XML_VALUE);
 		testProblemDetailMediaType(MediaType.APPLICATION_PROBLEM_XML_VALUE);
@@ -504,6 +505,25 @@ class RequestResponseBodyMethodProcessorTests {
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodReturnType = handlerMethod.getReturnType();
 
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
+		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(
+				converters, null, List.of(new JsonViewResponseBodyAdvice()));
+
+		Object returnValue = new JacksonController().handleResponseBody();
+		processor.handleReturnValue(returnValue, methodReturnType, this.container, this.request);
+
+		assertThat(this.servletResponse.getContentAsString())
+				.doesNotContain("\"withView1\":\"with\"")
+				.contains("\"withView2\":\"with\"")
+				.doesNotContain("\"withoutView\":\"without\"");
+	}
+
+	@Test
+	void jackson2JsonViewWithResponseBodyAndJsonMessageConverter() throws Exception {
+		Method method = JacksonController.class.getMethod("handleResponseBody");
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodReturnType = handlerMethod.getReturnType();
+
 		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(
 				converters, null, List.of(new JsonViewResponseBodyAdvice()));
@@ -523,6 +543,25 @@ class RequestResponseBodyMethodProcessorTests {
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodReturnType = handlerMethod.getReturnType();
 
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
+		HttpEntityMethodProcessor processor = new HttpEntityMethodProcessor(
+				converters, null, List.of(new JsonViewResponseBodyAdvice()));
+
+		Object returnValue = new JacksonController().handleResponseEntity();
+		processor.handleReturnValue(returnValue, methodReturnType, this.container, this.request);
+
+		assertThat(this.servletResponse.getContentAsString())
+				.doesNotContain("\"withView1\":\"with\"")
+				.contains("\"withView2\":\"with\"")
+				.doesNotContain("\"withoutView\":\"without\"");
+	}
+
+	@Test
+	void jackson2JsonViewWithResponseEntityAndJsonMessageConverter() throws Exception {
+		Method method = JacksonController.class.getMethod("handleResponseEntity");
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodReturnType = handlerMethod.getReturnType();
+
 		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
 		HttpEntityMethodProcessor processor = new HttpEntityMethodProcessor(
 				converters, null, List.of(new JsonViewResponseBodyAdvice()));
@@ -536,13 +575,13 @@ class RequestResponseBodyMethodProcessorTests {
 				.doesNotContain("\"withoutView\":\"without\"");
 	}
 
-	@Test  // SPR-12149
+	@Test
 	void jacksonJsonViewWithResponseBodyAndXmlMessageConverter() throws Exception {
 		Method method = JacksonController.class.getMethod("handleResponseBody");
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodReturnType = handlerMethod.getReturnType();
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2XmlHttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonXmlHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(
 				converters, null, List.of(new JsonViewResponseBodyAdvice()));
 
@@ -556,11 +595,49 @@ class RequestResponseBodyMethodProcessorTests {
 	}
 
 	@Test  // SPR-12149
+	void jackson2JsonViewWithResponseBodyAndXmlMessageConverter() throws Exception {
+		Method method = JacksonController.class.getMethod("handleResponseBody");
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodReturnType = handlerMethod.getReturnType();
+
+		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2XmlHttpMessageConverter());
+		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(
+				converters, null, List.of(new JsonViewResponseBodyAdvice()));
+
+		Object returnValue = new JacksonController().handleResponseBody();
+		processor.handleReturnValue(returnValue, methodReturnType, this.container, this.request);
+
+		assertThat(this.servletResponse.getContentAsString())
+				.doesNotContain("<withView1>with</withView1>")
+				.contains("<withView2>with</withView2>")
+				.doesNotContain("<withoutView>without</withoutView>");
+	}
+
+	@Test
 	void jacksonJsonViewWithResponseEntityAndXmlMessageConverter() throws Exception {
 		Method method = JacksonController.class.getMethod("handleResponseEntity");
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodReturnType = handlerMethod.getReturnType();
 
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonXmlHttpMessageConverter());
+		HttpEntityMethodProcessor processor = new HttpEntityMethodProcessor(
+				converters, null, List.of(new JsonViewResponseBodyAdvice()));
+
+		Object returnValue = new JacksonController().handleResponseEntity();
+		processor.handleReturnValue(returnValue, methodReturnType, this.container, this.request);
+
+		assertThat(this.servletResponse.getContentAsString())
+				.doesNotContain("<withView1>with</withView1>")
+				.contains("<withView2>with</withView2>")
+				.doesNotContain("<withoutView>without</withoutView>");
+	}
+
+	@Test  // SPR-12149
+	void jackson2JsonViewWithResponseEntityAndXmlMessageConverter() throws Exception {
+		Method method = JacksonController.class.getMethod("handleResponseEntity");
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodReturnType = handlerMethod.getReturnType();
+
 		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2XmlHttpMessageConverter());
 		HttpEntityMethodProcessor processor = new HttpEntityMethodProcessor(
 				converters, null, List.of(new JsonViewResponseBodyAdvice()));
@@ -574,7 +651,7 @@ class RequestResponseBodyMethodProcessorTests {
 				.doesNotContain("<withoutView>without</withoutView>");
 	}
 
-	@Test  // SPR-12501
+	@Test
 	void resolveArgumentWithJacksonJsonView() throws Exception {
 		String content = "{\"withView1\" : \"with\", \"withView2\" : \"with\", \"withoutView\" : \"without\"}";
 		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
@@ -584,7 +661,7 @@ class RequestResponseBodyMethodProcessorTests {
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(
 				converters, null, List.of(new JsonViewRequestBodyAdvice()));
 
@@ -598,6 +675,29 @@ class RequestResponseBodyMethodProcessorTests {
 	}
 
 	@Test  // SPR-12501
+	void resolveArgumentWithJackson2JsonView() throws Exception {
+		String content = "{\"withView1\" : \"with\", \"withView2\" : \"with\", \"withoutView\" : \"without\"}";
+		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
+		this.servletRequest.setContentType(MediaType.APPLICATION_JSON_VALUE);
+
+		Method method = JacksonController.class.getMethod("handleRequestBody", JacksonViewBean.class);
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
+
+		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(
+				converters, null, List.of(new JsonViewRequestBodyAdvice()));
+
+		JacksonViewBean result = (JacksonViewBean)
+				processor.resolveArgument(methodParameter, this.container, this.request, this.factory);
+
+		assertThat(result).isNotNull();
+		assertThat(result.getWithView1()).isEqualTo("with");
+		assertThat(result.getWithView2()).isNull();
+		assertThat(result.getWithoutView()).isNull();
+	}
+
+	@Test
 	void resolveHttpEntityArgumentWithJacksonJsonView() throws Exception {
 		String content = "{\"withView1\" : \"with\", \"withView2\" : \"with\", \"withoutView\" : \"without\"}";
 		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
@@ -607,7 +707,7 @@ class RequestResponseBodyMethodProcessorTests {
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
 		HttpEntityMethodProcessor processor = new HttpEntityMethodProcessor(
 				converters, null, List.of(new JsonViewRequestBodyAdvice()));
 
@@ -623,6 +723,31 @@ class RequestResponseBodyMethodProcessorTests {
 	}
 
 	@Test  // SPR-12501
+	void resolveHttpEntityArgumentWithJackson2JsonView() throws Exception {
+		String content = "{\"withView1\" : \"with\", \"withView2\" : \"with\", \"withoutView\" : \"without\"}";
+		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
+		this.servletRequest.setContentType(MediaType.APPLICATION_JSON_VALUE);
+
+		Method method = JacksonController.class.getMethod("handleHttpEntity", HttpEntity.class);
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
+
+		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		HttpEntityMethodProcessor processor = new HttpEntityMethodProcessor(
+				converters, null, List.of(new JsonViewRequestBodyAdvice()));
+
+		@SuppressWarnings("unchecked")
+		HttpEntity<JacksonViewBean> result = (HttpEntity<JacksonViewBean>)
+				processor.resolveArgument( methodParameter, this.container, this.request, this.factory);
+
+		assertThat(result).isNotNull();
+		assertThat(result.getBody()).isNotNull();
+		assertThat(result.getBody().getWithView1()).isEqualTo("with");
+		assertThat(result.getBody().getWithView2()).isNull();
+		assertThat(result.getBody().getWithoutView()).isNull();
+	}
+
+	@Test
 	void resolveArgumentWithJacksonJsonViewAndXmlMessageConverter() throws Exception {
 		String content = "<root>" +
 				"<withView1>with</withView1>" +
@@ -635,7 +760,7 @@ class RequestResponseBodyMethodProcessorTests {
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2XmlHttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonXmlHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(
 				converters, null, List.of(new JsonViewRequestBodyAdvice()));
 
@@ -649,6 +774,32 @@ class RequestResponseBodyMethodProcessorTests {
 	}
 
 	@Test  // SPR-12501
+	void resolveArgumentWithJackson2JsonViewAndXmlMessageConverter() throws Exception {
+		String content = "<root>" +
+				"<withView1>with</withView1>" +
+				"<withView2>with</withView2>" +
+				"<withoutView>without</withoutView></root>";
+		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
+		this.servletRequest.setContentType(MediaType.APPLICATION_XML_VALUE);
+
+		Method method = JacksonController.class.getMethod("handleRequestBody", JacksonViewBean.class);
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
+
+		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2XmlHttpMessageConverter());
+		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(
+				converters, null, List.of(new JsonViewRequestBodyAdvice()));
+
+		JacksonViewBean result = (JacksonViewBean)
+				processor.resolveArgument(methodParameter, this.container, this.request, this.factory);
+
+		assertThat(result).isNotNull();
+		assertThat(result.getWithView1()).isEqualTo("with");
+		assertThat(result.getWithView2()).isNull();
+		assertThat(result.getWithoutView()).isNull();
+	}
+
+	@Test
 	void resolveHttpEntityArgumentWithJacksonJsonViewAndXmlMessageConverter() throws Exception {
 		String content = "<root>" +
 				"<withView1>with</withView1>" +
@@ -661,6 +812,34 @@ class RequestResponseBodyMethodProcessorTests {
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
 
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonXmlHttpMessageConverter());
+		HttpEntityMethodProcessor processor = new HttpEntityMethodProcessor(
+				converters, null, List.of(new JsonViewRequestBodyAdvice()));
+
+		@SuppressWarnings("unchecked")
+		HttpEntity<JacksonViewBean> result = (HttpEntity<JacksonViewBean>)
+				processor.resolveArgument(methodParameter, this.container, this.request, this.factory);
+
+		assertThat(result).isNotNull();
+		assertThat(result.getBody()).isNotNull();
+		assertThat(result.getBody().getWithView1()).isEqualTo("with");
+		assertThat(result.getBody().getWithView2()).isNull();
+		assertThat(result.getBody().getWithoutView()).isNull();
+	}
+
+	@Test  // SPR-12501
+	void resolveHttpEntityArgumentWithJackson2JsonViewAndXmlMessageConverter() throws Exception {
+		String content = "<root>" +
+				"<withView1>with</withView1>" +
+				"<withView2>with</withView2>" +
+				"<withoutView>without</withoutView></root>";
+		this.servletRequest.setContent(content.getBytes(StandardCharsets.UTF_8));
+		this.servletRequest.setContentType(MediaType.APPLICATION_XML_VALUE);
+
+		Method method = JacksonController.class.getMethod("handleHttpEntity", HttpEntity.class);
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
+
 		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2XmlHttpMessageConverter());
 		HttpEntityMethodProcessor processor = new HttpEntityMethodProcessor(
 				converters, null, List.of(new JsonViewRequestBodyAdvice()));
@@ -676,12 +855,29 @@ class RequestResponseBodyMethodProcessorTests {
 		assertThat(result.getBody().getWithoutView()).isNull();
 	}
 
-	@Test  // SPR-12811
+	@Test
 	void jacksonTypeInfoList() throws Exception {
 		Method method = JacksonController.class.getMethod("handleTypeInfoList");
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodReturnType = handlerMethod.getReturnType();
 
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
+		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
+
+		Object returnValue = new JacksonController().handleTypeInfoList();
+		processor.handleReturnValue(returnValue, methodReturnType, this.container, this.request);
+
+		assertThat(this.servletResponse.getContentAsString())
+				.contains("\"type\":\"foo\"")
+				.contains("\"type\":\"bar\"");
+	}
+
+	@Test  // SPR-12811
+	void jackson2TypeInfoList() throws Exception {
+		Method method = JacksonController.class.getMethod("handleTypeInfoList");
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodReturnType = handlerMethod.getReturnType();
+
 		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
@@ -693,13 +889,13 @@ class RequestResponseBodyMethodProcessorTests {
 				.contains("\"type\":\"bar\"");
 	}
 
-	@Test  // SPR-13318
+	@Test
 	void jacksonSubType() throws Exception {
 		Method method = JacksonController.class.getMethod("handleSubType");
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodReturnType = handlerMethod.getReturnType();
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
 		Object returnValue = new JacksonController().handleSubType();
@@ -711,11 +907,47 @@ class RequestResponseBodyMethodProcessorTests {
 	}
 
 	@Test  // SPR-13318
+	void jackson2SubType() throws Exception {
+		Method method = JacksonController.class.getMethod("handleSubType");
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodReturnType = handlerMethod.getReturnType();
+
+		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
+
+		Object returnValue = new JacksonController().handleSubType();
+		processor.handleReturnValue(returnValue, methodReturnType, this.container, this.request);
+
+		assertThat(this.servletResponse.getContentAsString())
+				.contains("\"id\":123")
+				.contains("\"name\":\"foo\"");
+	}
+
+	@Test
 	void jacksonSubTypeList() throws Exception {
 		Method method = JacksonController.class.getMethod("handleSubTypeList");
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
 		MethodParameter methodReturnType = handlerMethod.getReturnType();
 
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
+		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
+
+		Object returnValue = new JacksonController().handleSubTypeList();
+		processor.handleReturnValue(returnValue, methodReturnType, this.container, this.request);
+
+		assertThat(this.servletResponse.getContentAsString())
+				.contains("\"id\":123")
+				.contains("\"name\":\"foo\"")
+				.contains("\"id\":456")
+				.contains("\"name\":\"bar\"");
+	}
+
+	@Test  // SPR-13318
+	void jackson2SubTypeList() throws Exception {
+		Method method = JacksonController.class.getMethod("handleSubTypeList");
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonController(), method);
+		MethodParameter methodReturnType = handlerMethod.getReturnType();
+
 		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
@@ -738,7 +970,7 @@ class RequestResponseBodyMethodProcessorTests {
 		HandlerMethod handlerMethod = new HandlerMethod(new MyControllerImplementingInterface(), method);
 		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
 		assertThat(processor.supportsParameter(methodParameter)).isTrue();
@@ -756,7 +988,7 @@ class RequestResponseBodyMethodProcessorTests {
 		HandlerMethod handlerMethod = new HandlerMethod(new SubControllerImplementingInterface(), method);
 		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
 		assertThat(processor.supportsParameter(methodParameter)).isTrue();
@@ -774,7 +1006,7 @@ class RequestResponseBodyMethodProcessorTests {
 		HandlerMethod handlerMethod = new HandlerMethod(new SubControllerImplementingAbstractMethod(), method);
 		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
 
-		List<HttpMessageConverter<?>> converters = List.of(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = List.of(new JacksonJsonHttpMessageConverter());
 		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(converters);
 
 		assertThat(processor.supportsParameter(methodParameter)).isTrue();
@@ -1068,8 +1300,6 @@ class RequestResponseBodyMethodProcessorTests {
 			bean.setWithView1("with");
 			bean.setWithView2("with");
 			bean.setWithoutView("without");
-			ModelAndView mav = new ModelAndView(new MappingJackson2JsonView());
-			mav.addObject("bean", bean);
 			return new ResponseEntity<>(bean, HttpStatus.OK);
 		}
 

spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/ResponseBodyEmitterReturnValueHandlerTests.java

@@ -35,7 +35,7 @@ import reactor.core.scheduler.Schedulers;
 import org.springframework.core.MethodParameter;
 import org.springframework.core.ResolvableType;
 import org.springframework.http.ResponseEntity;
-import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
+import org.springframework.http.converter.json.JacksonJsonHttpMessageConverter;
 import org.springframework.web.context.request.NativeWebRequest;
 import org.springframework.web.context.request.ServletWebRequest;
 import org.springframework.web.context.request.async.AsyncWebRequest;
@@ -63,7 +63,7 @@ import static org.springframework.web.testfixture.method.ResolvableMethod.on;
 class ResponseBodyEmitterReturnValueHandlerTests {
 
 	private final ResponseBodyEmitterReturnValueHandler handler =
-			new ResponseBodyEmitterReturnValueHandler(List.of(new MappingJackson2HttpMessageConverter()));
+			new ResponseBodyEmitterReturnValueHandler(List.of(new JacksonJsonHttpMessageConverter()));
 
 	private final MockHttpServletRequest request = new MockHttpServletRequest();
 

spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/ServletInvocableHandlerMethodTests.java

@@ -41,7 +41,7 @@ import org.springframework.http.ResponseEntity;
 import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.HttpMessageNotWritableException;
 import org.springframework.http.converter.StringHttpMessageConverter;
-import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
+import org.springframework.http.converter.json.JacksonJsonHttpMessageConverter;
 import org.springframework.web.accept.ContentNegotiationManager;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
@@ -373,7 +373,7 @@ class ServletInvocableHandlerMethodTests {
 
 	@Test
 	void wrapConcurrentResult_CollectedValuesList() throws Exception {
-		List<HttpMessageConverter<?>> converters = Collections.singletonList(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = Collections.singletonList(new JacksonJsonHttpMessageConverter());
 		ResolvableType elementType = ResolvableType.forClass(List.class);
 		ReactiveTypeHandler.CollectedValuesList result = new ReactiveTypeHandler.CollectedValuesList(elementType);
 		result.add(Arrays.asList("foo1", "bar1"));
@@ -391,7 +391,7 @@ class ServletInvocableHandlerMethodTests {
 
 	@Test // SPR-15478
 	public void wrapConcurrentResult_CollectedValuesListWithResponseEntity() throws Exception {
-		List<HttpMessageConverter<?>> converters = Collections.singletonList(new MappingJackson2HttpMessageConverter());
+		List<HttpMessageConverter<?>> converters = Collections.singletonList(new JacksonJsonHttpMessageConverter());
 		ResolvableType elementType = ResolvableType.forClass(Bar.class);
 		ReactiveTypeHandler.CollectedValuesList result = new ReactiveTypeHandler.CollectedValuesList(elementType);
 		result.add(new Bar("foo"));