Deprecate for removal Jackson 2 support

This commit deprecate for removal (likely in a future 7.x release) the
Jackson 2 support in favor of the Jackson 3 one.

Closes gh-33798

Author: sdeleuze

framework-docs/src/main/java/org/springframework/docs/testing/mockmvc/assertj/mockmvctestersetup/converter/AccountControllerIntegrationTests.java

@@ -25,6 +25,7 @@
 import org.springframework.test.web.servlet.assertj.MockMvcTester;
 import org.springframework.web.context.WebApplicationContext;
 
+@SuppressWarnings("removal")
 // tag::snippet[]
 @SpringJUnitWebConfig(ApplicationWebConfiguration.class)
 class AccountControllerIntegrationTests {

framework-docs/src/main/java/org/springframework/docs/web/webmvc/mvcconfig/mvcconfigmessageconverters/WebConfiguration.java

@@ -28,6 +28,7 @@
 import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
+@SuppressWarnings("removal")
 // tag::snippet[]
 @Configuration
 public class WebConfiguration implements WebMvcConfigurer {

framework-docs/src/main/java/org/springframework/docs/web/webmvc/mvcconfig/mvcconfigviewresolvers/FreeMarkerConfiguration.java

@@ -23,6 +23,7 @@
 import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;
 import org.springframework.web.servlet.view.json.MappingJackson2JsonView;
 
+@SuppressWarnings("removal")
 // tag::snippet[]
 @Configuration
 public class FreeMarkerConfiguration implements WebMvcConfigurer {

framework-docs/src/main/java/org/springframework/docs/web/webmvc/mvcconfig/mvcconfigviewresolvers/WebConfiguration.java

@@ -21,6 +21,7 @@
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 import org.springframework.web.servlet.view.json.MappingJackson2JsonView;
 
+@SuppressWarnings("removal")
 // tag::snippet[]
 @Configuration
 public class WebConfiguration implements WebMvcConfigurer {

framework-docs/src/main/kotlin/org/springframework/docs/testing/mockmvc/assertj/mockmvctestersetup/converter/AccountControllerIntegrationTests.kt

@@ -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.
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+@file:Suppress("DEPRECATION")
+
 package org.springframework.docs.testing.mockmvc.assertj.mockmvctestersetup.converter
 
 import org.springframework.beans.factory.annotation.Autowired

framework-docs/src/main/kotlin/org/springframework/docs/web/webmvc/mvcconfig/mvcconfigmessageconverters/WebConfiguration.kt

@@ -1,3 +1,5 @@
+@file:Suppress("DEPRECATION")
+
 package org.springframework.docs.web.webmvc.mvcconfig.mvcconfigmessageconverters
 
 import com.fasterxml.jackson.module.paramnames.ParameterNamesModule

framework-docs/src/main/kotlin/org/springframework/docs/web/webmvc/mvcconfig/mvcconfigviewresolvers/FreeMarkerConfiguration.kt

@@ -1,3 +1,5 @@
+@file:Suppress("DEPRECATION")
+
 package org.springframework.docs.web.webmvc.mvcconfig.mvcconfigviewresolvers
 
 import org.springframework.context.annotation.Bean

framework-docs/src/main/kotlin/org/springframework/docs/web/webmvc/mvcconfig/mvcconfigviewresolvers/WebConfiguration.kt

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+@file:Suppress("DEPRECATION")
+
 package org.springframework.docs.web.webmvc.mvcconfig.mvcconfigviewresolvers
 
 import org.springframework.context.annotation.Configuration

spring-jms/src/main/java/org/springframework/jms/support/converter/MappingJackson2MessageConverter.java

@@ -60,7 +60,9 @@
  * @author Juergen Hoeller
  * @author Stephane Nicoll
  * @since 3.1.4
+ * @deprecated since 7.0 in favor of {@link JacksonJsonMessageConverter}
  */
+@Deprecated(since = "7.0", forRemoval = true)
 public class MappingJackson2MessageConverter implements SmartMessageConverter, BeanClassLoaderAware {
 
 	/**

spring-messaging/src/main/java/org/springframework/messaging/converter/MappingJackson2MessageConverter.java

@@ -56,7 +56,9 @@
  * @author Juergen Hoeller
  * @author Sebastien Deleuze
  * @since 4.0
+ * @deprecated since 7.0 in favor of {@link JacksonJsonMessageConverter}
  */
+@Deprecated(since = "7.0", forRemoval = true)
 public class MappingJackson2MessageConverter extends AbstractMessageConverter {
 
 	private static final MimeType[] DEFAULT_MIME_TYPES = new MimeType[] {

spring-messaging/src/main/java/org/springframework/messaging/simp/config/AbstractMessageBrokerConfiguration.java

@@ -535,6 +535,7 @@ protected JacksonJsonMessageConverter createJacksonJsonConverter() {
 	/**
 	 * Allow to customize Jackson 2.x JSON converter.
 	 */
+	@SuppressWarnings("removal")
 	protected MappingJackson2MessageConverter createJacksonConverter() {
 		DefaultContentTypeResolver resolver = new DefaultContentTypeResolver();
 		resolver.setDefaultMimeType(MimeTypeUtils.APPLICATION_JSON);

spring-messaging/src/test/java/org/springframework/messaging/converter/MappingJackson2MessageConverterTests.java

@@ -43,6 +43,7 @@
  * @author Rossen Stoyanchev
  * @author Sebastien Deleuze
  */
+@SuppressWarnings("removal")
 class MappingJackson2MessageConverterTests {
 
 	@Test

spring-web/src/jmh/java/org/springframework/http/codec/json/Jackson2JsonEncoderBenchmark.java

@@ -43,6 +43,7 @@
  * @see AbstractJackson2Encoder
  */
 @BenchmarkMode(Mode.Throughput)
+@SuppressWarnings("removal")
 public class Jackson2JsonEncoderBenchmark {
 
 

spring-web/src/main/java/org/springframework/http/codec/AbstractJacksonEncoder.java

@@ -111,6 +111,7 @@ public void setStreamingMediaTypes(List<MediaType> mediaTypes) {
 	}
 
 	@Override
+	@SuppressWarnings("removal")
 	public boolean canEncode(ResolvableType elementType, @Nullable MimeType mimeType) {
 		if (!supportsMimeType(mimeType)) {
 			return false;

spring-web/src/main/java/org/springframework/http/codec/cbor/Jackson2CborDecoder.java

@@ -40,7 +40,10 @@
  * @since 5.2
  * @see Jackson2CborEncoder
  * @see <a href="https://github.com/spring-projects/spring-framework/issues/20513">Add CBOR support to WebFlux</a>
+ * @deprecated since 7.0 in favor of {@link JacksonCborDecoder}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2CborDecoder extends AbstractJackson2Decoder {
 
 	public Jackson2CborDecoder() {

spring-web/src/main/java/org/springframework/http/codec/cbor/Jackson2CborEncoder.java

@@ -41,7 +41,10 @@
  * @since 5.2
  * @see Jackson2CborDecoder
  * @see <a href="https://github.com/spring-projects/spring-framework/issues/20513">Add CBOR support to WebFlux</a>
+ * @deprecated since 7.0 in favor of {@link JacksonCborEncoder}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2CborEncoder extends AbstractJackson2Encoder {
 
 	public Jackson2CborEncoder() {

spring-web/src/main/java/org/springframework/http/codec/json/AbstractJackson2Decoder.java

@@ -47,6 +47,7 @@
 import org.springframework.core.io.buffer.DataBufferUtils;
 import org.springframework.core.io.buffer.PooledDataBuffer;
 import org.springframework.core.log.LogFormatUtils;
+import org.springframework.http.codec.AbstractJacksonDecoder;
 import org.springframework.http.codec.HttpMessageDecoder;
 import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.http.server.reactive.ServerHttpResponse;
@@ -61,7 +62,10 @@
  * @author Arjen Poutsma
  * @since 5.0
  * @see <a href="https://github.com/FasterXML/jackson-core/issues/57" target="_blank">Add support for non-blocking ("async") JSON parsing</a>
+ * @deprecated since 7.0 in favor of {@link AbstractJacksonDecoder}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public abstract class AbstractJackson2Decoder extends Jackson2CodecSupport implements HttpMessageDecoder<Object> {
 
 	private int maxInMemorySize = 256 * 1024;

spring-web/src/main/java/org/springframework/http/codec/json/AbstractJackson2Encoder.java

@@ -50,6 +50,7 @@
 import org.springframework.core.io.buffer.DataBufferFactory;
 import org.springframework.core.log.LogFormatUtils;
 import org.springframework.http.MediaType;
+import org.springframework.http.codec.AbstractJacksonEncoder;
 import org.springframework.http.codec.HttpMessageEncoder;
 import org.springframework.http.converter.json.MappingJacksonValue;
 import org.springframework.http.server.reactive.ServerHttpRequest;
@@ -66,7 +67,10 @@
  * @author Sebastien Deleuze
  * @author Arjen Poutsma
  * @since 5.0
+ * @deprecated since 7.0 in favor of {@link AbstractJacksonEncoder}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public abstract class AbstractJackson2Encoder extends Jackson2CodecSupport implements HttpMessageEncoder<Object> {
 
 	private static final byte[] NEWLINE_SEPARATOR = {'\n'};

spring-web/src/main/java/org/springframework/http/codec/json/Jackson2CodecSupport.java

@@ -40,6 +40,7 @@
 import org.springframework.http.HttpLogging;
 import org.springframework.http.MediaType;
 import org.springframework.http.ProblemDetail;
+import org.springframework.http.codec.JacksonCodecSupport;
 import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.http.server.reactive.ServerHttpResponse;
 import org.springframework.util.Assert;
@@ -53,7 +54,9 @@
  * @author Sebastien Deleuze
  * @author Rossen Stoyanchev
  * @since 5.0
+ * @deprecated since 7.0 in favor of {@link JacksonCodecSupport}
  */
+@Deprecated(since = "7.0", forRemoval = true)
 public abstract class Jackson2CodecSupport {
 
 	/**

spring-web/src/main/java/org/springframework/http/codec/json/Jackson2JsonDecoder.java

@@ -31,6 +31,7 @@
 import org.springframework.core.codec.CharBufferDecoder;
 import org.springframework.core.io.buffer.DataBuffer;
 import org.springframework.core.io.buffer.DefaultDataBufferFactory;
+import org.springframework.http.codec.AbstractJacksonDecoder;
 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 import org.springframework.util.MimeType;
 import org.springframework.util.MimeTypeUtils;
@@ -43,7 +44,10 @@
  * @author Rossen Stoyanchev
  * @since 5.0
  * @see Jackson2JsonEncoder
+ * @deprecated since 7.0 in favor of {@link AbstractJacksonDecoder}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2JsonDecoder extends AbstractJackson2Decoder {
 
 	private static final CharBufferDecoder CHAR_BUFFER_DECODER = CharBufferDecoder.textPlainOnly(Arrays.asList(",", "\n"), false);

spring-web/src/main/java/org/springframework/http/codec/json/Jackson2JsonEncoder.java

@@ -44,7 +44,10 @@
  * @author Arjen Poutsma
  * @since 5.0
  * @see Jackson2JsonDecoder
+ * @deprecated since 7.0 in favor of {@link JacksonJsonEncoder}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2JsonEncoder extends AbstractJackson2Encoder {
 
 	private static final List<MimeType> problemDetailMimeTypes =

spring-web/src/main/java/org/springframework/http/codec/json/Jackson2SmileDecoder.java

@@ -19,6 +19,7 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.dataformat.smile.SmileFactory;
 
+import org.springframework.http.codec.smile.JacksonSmileDecoder;
 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 import org.springframework.util.Assert;
 import org.springframework.util.MimeType;
@@ -31,7 +32,10 @@
  * @author Rossen Stoyanchev
  * @since 5.0
  * @see Jackson2JsonEncoder
+ * @deprecated since 7.0 in favor of {@link JacksonSmileDecoder}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2SmileDecoder extends AbstractJackson2Decoder {
 
 	private static final MimeType[] DEFAULT_SMILE_MIME_TYPES = new MimeType[] {

spring-web/src/main/java/org/springframework/http/codec/json/Jackson2SmileEncoder.java

@@ -25,6 +25,7 @@
 import reactor.core.publisher.Flux;
 
 import org.springframework.http.MediaType;
+import org.springframework.http.codec.smile.JacksonSmileEncoder;
 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 import org.springframework.util.Assert;
 import org.springframework.util.MimeType;
@@ -37,7 +38,10 @@
  * @author Sebastien Deleuze
  * @since 5.0
  * @see Jackson2SmileDecoder
+ * @deprecated since 7.0 in favor of {@link JacksonSmileEncoder}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2SmileEncoder extends AbstractJackson2Encoder {
 
 	private static final MimeType[] DEFAULT_SMILE_MIME_TYPES = new MimeType[] {

spring-web/src/main/java/org/springframework/http/codec/json/Jackson2Tokenizer.java

@@ -50,7 +50,9 @@
  * @author Rossen Stoyanchev
  * @author Juergen Hoeller
  * @since 5.0
+ * @deprecated since 7.0 in favor of {@code org.springframework.http.codec.JacksonTokenizer}
  */
+@Deprecated(since = "7.0", forRemoval = true)
 final class Jackson2Tokenizer {
 
 	private final JsonParser parser;

spring-web/src/main/java/org/springframework/http/codec/support/BaseDefaultCodecs.java

@@ -486,6 +486,7 @@ protected <T> void addCodec(List<T> codecs, T codec) {
 	 * if configured by the application, to the given codec , including any
 	 * codec it contains.
 	 */
+	@SuppressWarnings("removal")
 	private void initCodec(@Nullable Object codec) {
 		if (codec instanceof DecoderHttpMessageReader<?> decoderHttpMessageReader) {
 			codec = decoderHttpMessageReader.getDecoder();
@@ -612,6 +613,7 @@ final List<HttpMessageReader<?>> getObjectReaders() {
 	 * Reset and initialize object readers.
 	 * @since 5.3.3
 	 */
+	@SuppressWarnings("removal")
 	protected void initObjectReaders() {
 		this.objectReaders.clear();
 		if (!this.registerDefaults) {
@@ -760,6 +762,7 @@ protected void initObjectWriters() {
 	/**
 	 * Return "base" object writers only, i.e. common to client and server.
 	 */
+	@SuppressWarnings("removal")
 	final List<HttpMessageWriter<?>> getBaseObjectWriters() {
 		List<HttpMessageWriter<?>> writers = new ArrayList<>();
 		if (kotlinSerializationCborPresent) {
@@ -839,6 +842,7 @@ protected Decoder<?> getJacksonJsonDecoder() {
 		return this.jacksonJsonDecoder;
 	}
 
+	@SuppressWarnings("removal")
 	protected Decoder<?> getJackson2JsonDecoder() {
 		if (this.jackson2JsonDecoder == null) {
 			this.jackson2JsonDecoder = new Jackson2JsonDecoder();
@@ -853,6 +857,7 @@ protected Encoder<?> getJacksonJsonEncoder() {
 		return this.jacksonJsonEncoder;
 	}
 
+	@SuppressWarnings("removal")
 	protected Encoder<?> getJackson2JsonEncoder() {
 		if (this.jackson2JsonEncoder == null) {
 			this.jackson2JsonEncoder = new Jackson2JsonEncoder();

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

@@ -271,6 +271,7 @@ public boolean canRead(ResolvableType type, @Nullable MediaType mediaType) {
 	}
 
 	@Override
+	@SuppressWarnings("removal")
 	public boolean canWrite(Class<?> clazz, @Nullable MediaType mediaType) {
 		if (!canWrite(mediaType)) {
 			return false;
@@ -328,6 +329,7 @@ protected Object readInternal(Class<?> clazz, HttpInputMessage inputMessage)
 		return readJavaType(javaType, inputMessage, null);
 	}
 
+	@SuppressWarnings("removal")
 	private Object readJavaType(JavaType javaType, HttpInputMessage inputMessage, @Nullable Map<String, Object> hints) throws IOException {
 		MediaType contentType = inputMessage.getHeaders().getContentType();
 		Charset charset = getCharset(contentType);

spring-web/src/main/java/org/springframework/http/converter/cbor/MappingJackson2CborHttpMessageConverter.java

@@ -39,7 +39,10 @@
  *
  * @author Sebastien Deleuze
  * @since 5.0
+ * @deprecated since 7.0 in favor of {@link JacksonCborHttpMessageConverter}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class MappingJackson2CborHttpMessageConverter extends AbstractJackson2HttpMessageConverter {
 
 	/**

spring-web/src/main/java/org/springframework/http/converter/json/AbstractJackson2HttpMessageConverter.java

@@ -57,6 +57,7 @@
 import org.springframework.http.MediaType;
 import org.springframework.http.ProblemDetail;
 import org.springframework.http.converter.AbstractGenericHttpMessageConverter;
+import org.springframework.http.converter.AbstractJacksonHttpMessageConverter;
 import org.springframework.http.converter.HttpMessageConversionException;
 import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.HttpMessageNotReadableException;
@@ -78,7 +79,10 @@
  * @author Sam Brannen
  * @since 4.1
  * @see MappingJackson2HttpMessageConverter
+ * @deprecated since 7.0 in favor of {@link AbstractJacksonHttpMessageConverter}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public abstract class AbstractJackson2HttpMessageConverter extends AbstractGenericHttpMessageConverter<Object> {
 
 	private static final Map<String, JsonEncoding> ENCODINGS;

spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilder.java

@@ -100,8 +100,10 @@
  * @since 4.1.1
  * @see #build()
  * @see #configure(ObjectMapper)
- * @see Jackson2ObjectMapperFactoryBean
+ * @deprecated since 7.0 in favor using directly Jackson 3 builders like {@link tools.jackson.databind.json.JsonMapper#builder}
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2ObjectMapperBuilder {
 
 	private static final boolean jackson2XmlPresent = ClassUtils.isPresent(

spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBean.java

@@ -136,7 +136,10 @@
  * @author Tadaya Tsuyukubo
  * @author Sebastien Deleuze
  * @since 3.2
+ * @deprecated since 7.0 in favor of using directly Jackson 3 converters default constructor
  */
+@Deprecated(since = "7.0", forRemoval = true)
+@SuppressWarnings("removal")
 public class Jackson2ObjectMapperFactoryBean implements FactoryBean<ObjectMapper>, BeanClassLoaderAware,
 		ApplicationContextAware, InitializingBean {
 

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

@@ -35,6 +35,7 @@
  */
 class JacksonModulesRuntimeHints implements RuntimeHintsRegistrar {
 
+	@SuppressWarnings("removal")
 	private static final Consumer<Builder> asJacksonModule = builder ->
 			builder.onReachableType(Jackson2ObjectMapperBuilder.class)
 					.withMembers(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS);