Uses of Interface
org.springframework.http.converter.HttpMessageConverter

Packages that use HttpMessageConverter

Package	Description
org.springframework.http.converter	Provides an HttpMessageConverter abstraction to convert between Java objects and HTTP input/output messages.
org.springframework.http.converter.cbor	Provides an HttpMessageConverter for the CBOR data format.
org.springframework.http.converter.feed	Provides HttpMessageConverter implementations for handling Atom and RSS feeds.
org.springframework.http.converter.json	Provides HttpMessageConverter implementations for handling JSON.
org.springframework.http.converter.protobuf	Provides an HttpMessageConverter implementation for handling Google Protocol Buffers.
org.springframework.http.converter.smile	Provides an HttpMessageConverter for the Smile data format ("binary JSON").
org.springframework.http.converter.support	Provides a comprehensive HttpMessageConverter variant for form handling.
org.springframework.http.converter.xml	Provides HttpMessageConverter implementations for handling XML.
org.springframework.http.converter.yaml	Provides an HttpMessageConverter for the YAML data format.
org.springframework.test.http	Test support for HTTP concepts.
org.springframework.test.web.servlet.assertj	AssertJ support for MockMvc.
org.springframework.test.web.servlet.client	Support for testing Spring MVC applications via WebTestClient with MockMvc for server request handling.
org.springframework.test.web.servlet.setup	Contains built-in MockMvcBuilder implementations.
org.springframework.web.client	Core package of the client-side web support.
org.springframework.web.servlet.config.annotation	Annotation-based setup for Spring MVC.
org.springframework.web.servlet.function	Provides the types that make up Spring's functional web framework for Servlet environments.
org.springframework.web.servlet.function.support	Classes supporting the org.springframework.web.servlet.function package.
org.springframework.web.servlet.mvc.method.annotation	MVC infrastructure for annotation-based handler method processing, building on the org.springframework.web.method.annotation package.

Uses of HttpMessageConverter in org.springframework.http.converter

Subinterfaces of HttpMessageConverter in org.springframework.http.converter

Modifier and Type	Interface	Description
interface	GenericHttpMessageConverter<T>	A specialization of HttpMessageConverter that can convert an HTTP request into a target object of a specified generic type and a source object of a specified generic type into an HTTP response.
interface	SmartHttpMessageConverter<T>	A specialization of HttpMessageConverter that can convert an HTTP request into a target object of a specified ResolvableType and a source object of a specified ResolvableType into an HTTP response with optional hints.

Classes in org.springframework.http.converter that implement HttpMessageConverter

Modifier and Type	Class	Description
class	AbstractGenericHttpMessageConverter<T>	Abstract base class for most GenericHttpMessageConverter implementations.
class	AbstractHttpMessageConverter<T>	Abstract base class for most HttpMessageConverter implementations.
class	AbstractKotlinSerializationHttpMessageConverter<T extends kotlinx.serialization.SerialFormat>	Abstract base class for HttpMessageConverter implementations that use Kotlin serialization.
class	AbstractSmartHttpMessageConverter<T>	Abstract base class for most SmartHttpMessageConverter implementations.
class	BufferedImageHttpMessageConverter	Implementation of HttpMessageConverter that can read and write BufferedImages.
class	ByteArrayHttpMessageConverter	Implementation of HttpMessageConverter that can read and write byte arrays.
class	FormHttpMessageConverter	Implementation of HttpMessageConverter to read and write 'normal' HTML forms and also to write (but not read) multipart data (e.g.
class	KotlinSerializationBinaryHttpMessageConverter<T extends kotlinx.serialization.BinaryFormat>	Abstract base class for HttpMessageConverter implementations that defer to Kotlin binary serializers.
class	KotlinSerializationStringHttpMessageConverter<T extends kotlinx.serialization.StringFormat>	Abstract base class for HttpMessageConverter implementations that defer to Kotlin string serializers.
class	ObjectToStringHttpMessageConverter	An HttpMessageConverter that uses StringHttpMessageConverter for reading and writing content and a ConversionService for converting the String content to and from the target object type.
class	ResourceHttpMessageConverter	Implementation of HttpMessageConverter that can read/write Resources and supports byte range requests.
class	ResourceRegionHttpMessageConverter	Implementation of HttpMessageConverter that can write a single ResourceRegion or Collections of ResourceRegions.
class	StringHttpMessageConverter	Implementation of HttpMessageConverter that can read and write strings.

Methods in org.springframework.http.converter that return types with arguments of type HttpMessageConverter

Modifier and Type	Method	Description
List<HttpMessageConverter<?>>	FormHttpMessageConverter.getPartConverters()	Return the configured converters for MIME parts.

Methods in org.springframework.http.converter with parameters of type HttpMessageConverter

Modifier and Type	Method	Description
void	FormHttpMessageConverter.addPartConverter(HttpMessageConverter<?> partConverter)	Add a message body converter.

Method parameters in org.springframework.http.converter with type arguments of type HttpMessageConverter

Modifier and Type	Method	Description
void	FormHttpMessageConverter.setPartConverters(List<HttpMessageConverter<?>> partConverters)	Set the message body converters to use.

Uses of HttpMessageConverter in org.springframework.http.converter.cbor

Classes in org.springframework.http.converter.cbor that implement HttpMessageConverter

Modifier and Type	Class	Description
class	KotlinSerializationCborHttpMessageConverter	Implementation of HttpMessageConverter that can read and write CBOR using kotlinx.serialization.
class	MappingJackson2CborHttpMessageConverter	Implementation of HttpMessageConverter that can read and write the CBOR data format using the dedicated Jackson 2.x extension.

Uses of HttpMessageConverter in org.springframework.http.converter.feed

Classes in org.springframework.http.converter.feed that implement HttpMessageConverter

Modifier and Type	Class	Description
class	AbstractWireFeedHttpMessageConverter<T extends com.rometools.rome.feed.WireFeed>	Abstract base class for Atom and RSS Feed message converters, using the ROME tools project.
class	AtomFeedHttpMessageConverter	Implementation of HttpMessageConverter that can read and write Atom feeds.
class	RssChannelHttpMessageConverter	Implementation of HttpMessageConverter that can read and write RSS feeds.

Uses of HttpMessageConverter in org.springframework.http.converter.json

Classes in org.springframework.http.converter.json that implement HttpMessageConverter

Modifier and Type	Class	Description
class	AbstractJackson2HttpMessageConverter	Abstract base class for Jackson based and content type independent HttpMessageConverter implementations.
class	AbstractJsonHttpMessageConverter	Common base class for plain JSON converters, e.g.
class	GsonHttpMessageConverter	Implementation of HttpMessageConverter that can read and write JSON using the Google Gson library.
class	JsonbHttpMessageConverter	Implementation of HttpMessageConverter that can read and write JSON using the JSON Binding API.
class	KotlinSerializationJsonHttpMessageConverter	Implementation of HttpMessageConverter that can read and write JSON using kotlinx.serialization.
class	MappingJackson2HttpMessageConverter	Implementation of HttpMessageConverter that can read and write JSON using Jackson 2.x's ObjectMapper.

Uses of HttpMessageConverter in org.springframework.http.converter.protobuf

Classes in org.springframework.http.converter.protobuf that implement HttpMessageConverter

Modifier and Type	Class	Description
class	KotlinSerializationProtobufHttpMessageConverter	Implementation of HttpMessageConverter that can read and write Protocol Buffers using kotlinx.serialization.
class	ProtobufHttpMessageConverter	An HttpMessageConverter that reads and writes com.google.protobuf.Messages using Google Protocol Buffers.
class	ProtobufJsonFormatHttpMessageConverter	Subclass of ProtobufHttpMessageConverter which enforces the use of Protobuf 3 and its official library "com.google.protobuf:protobuf-java-util" for JSON processing.

Uses of HttpMessageConverter in org.springframework.http.converter.smile

Classes in org.springframework.http.converter.smile that implement HttpMessageConverter

Modifier and Type	Class	Description
class	MappingJackson2SmileHttpMessageConverter	Implementation of HttpMessageConverter that can read and write Smile data format ("binary JSON") using the dedicated Jackson 2.x extension.

Uses of HttpMessageConverter in org.springframework.http.converter.support

Classes in org.springframework.http.converter.support that implement HttpMessageConverter

Modifier and Type	Class	Description
class	AllEncompassingFormHttpMessageConverter	Extension of FormHttpMessageConverter, adding support for XML, JSON, Smile, CBOR, Protobuf and Yaml based parts when related libraries are present in the classpath.

Uses of HttpMessageConverter in org.springframework.http.converter.xml

Classes in org.springframework.http.converter.xml that implement HttpMessageConverter

Modifier and Type	Class	Description
class	AbstractJaxb2HttpMessageConverter<T>	Abstract base class for HttpMessageConverters that use JAXB2.
class	AbstractXmlHttpMessageConverter<T>	Abstract base class for HttpMessageConverters that convert from/to XML.
class	Jaxb2CollectionHttpMessageConverter<T extends Collection>	An HttpMessageConverter that can read XML collections using JAXB2.
class	Jaxb2RootElementHttpMessageConverter	Implementation of HttpMessageConverter that can read and write XML using JAXB2.
class	MappingJackson2XmlHttpMessageConverter	Implementation of HttpMessageConverter that can read and write XML using Jackson 2.x extension component for reading and writing XML encoded data.
class	MarshallingHttpMessageConverter	Implementation of HttpMessageConverter that can read and write XML using Spring's Marshaller and Unmarshaller abstractions.
class	SourceHttpMessageConverter<T extends Source>	Implementation of HttpMessageConverter that can read and write Source objects.

Uses of HttpMessageConverter in org.springframework.http.converter.yaml

Classes in org.springframework.http.converter.yaml that implement HttpMessageConverter

Modifier and Type	Class	Description
class	MappingJackson2YamlHttpMessageConverter	Implementation of HttpMessageConverter that can read and write the YAML data format using the dedicated Jackson 2.x extension.

Uses of HttpMessageConverter in org.springframework.test.http

Methods in org.springframework.test.http with parameters of type HttpMessageConverter

Modifier and Type	Method	Description
static HttpMessageContentConverter	HttpMessageContentConverter.of(HttpMessageConverter<?>... candidates)	Create an instance with a vararg of the candidates to use.

Method parameters in org.springframework.test.http with type arguments of type HttpMessageConverter

Modifier and Type	Method	Description
static HttpMessageContentConverter	HttpMessageContentConverter.of(Iterable<HttpMessageConverter<?>> candidates)	Create an instance with an iterable of the candidates to use.

Uses of HttpMessageConverter in org.springframework.test.web.servlet.assertj

Method parameters in org.springframework.test.web.servlet.assertj with type arguments of type HttpMessageConverter

Modifier and Type	Method	Description
MockMvcTester	MockMvcTester.withHttpMessageConverters(Iterable<HttpMessageConverter<?>> httpMessageConverters)	Return a new instance using the specified message converters.

Uses of HttpMessageConverter in org.springframework.test.web.servlet.client

Methods in org.springframework.test.web.servlet.client with parameters of type HttpMessageConverter

Modifier and Type	Method	Description
MockMvcWebTestClient.ControllerSpec	MockMvcWebTestClient.ControllerSpec.messageConverters(HttpMessageConverter<?>... messageConverters)	Set the message converters to use.
MockMvcWebTestClient.RouterFunctionSpec	MockMvcWebTestClient.RouterFunctionSpec.messageConverters(HttpMessageConverter<?>... messageConverters)	Set the message converters to use.

Uses of HttpMessageConverter in org.springframework.test.web.servlet.setup

Methods in org.springframework.test.web.servlet.setup with parameters of type HttpMessageConverter

Modifier and Type	Method	Description
RouterFunctionMockMvcBuilder	RouterFunctionMockMvcBuilder.setMessageConverters(HttpMessageConverter<?>... messageConverters)	Set the message converters to use in argument resolvers and in return value handlers, which support reading and/or writing to the body of the request and response.
StandaloneMockMvcBuilder	StandaloneMockMvcBuilder.setMessageConverters(HttpMessageConverter<?>... messageConverters)	Set the message converters to use in argument resolvers and in return value handlers, which support reading and/or writing to the body of the request and response.

Uses of HttpMessageConverter in org.springframework.web.client

Methods in org.springframework.web.client that return types with arguments of type HttpMessageConverter

Modifier and Type	Method	Description
List<HttpMessageConverter<?>>	RestTemplate.getMessageConverters()	Return the list of message body converters.

Method parameters in org.springframework.web.client with type arguments of type HttpMessageConverter

Modifier and Type	Method	Description
RestClient.Builder	RestClient.Builder.messageConverters(Consumer<List<HttpMessageConverter<?>>> configurer)	Configure the message converters for the RestClient to use.
void	ExtractingResponseErrorHandler.setMessageConverters(List<HttpMessageConverter<?>> messageConverters)	Set the message converters to use by this extractor.
void	RestTemplate.setMessageConverters(List<HttpMessageConverter<?>> messageConverters)	Set the message body converters to use.

Constructor parameters in org.springframework.web.client with type arguments of type HttpMessageConverter

Modifier	Constructor	Description
	ExtractingResponseErrorHandler(List<HttpMessageConverter<?>> messageConverters)	Create a new ExtractingResponseErrorHandler with the given HttpMessageConverter instances.
	HttpMessageConverterExtractor(Class<T> responseType, List<HttpMessageConverter<?>> messageConverters)	Create a new instance of the HttpMessageConverterExtractor with the given response type and message converters.
	HttpMessageConverterExtractor(Type responseType, List<HttpMessageConverter<?>> messageConverters)	Creates a new instance of the HttpMessageConverterExtractor with the given response type and message converters.
	RestTemplate(List<HttpMessageConverter<?>> messageConverters)	Create a new instance of the RestTemplate using the given list of HttpMessageConverter to use.

Uses of HttpMessageConverter in org.springframework.web.servlet.config.annotation

Methods in org.springframework.web.servlet.config.annotation that return types with arguments of type HttpMessageConverter

Modifier and Type	Method	Description
protected final List<HttpMessageConverter<?>>	WebMvcConfigurationSupport.getMessageConverters()	Provides access to the shared HttpMessageConverters used by the RequestMappingHandlerAdapter and the ExceptionHandlerExceptionResolver.

Method parameters in org.springframework.web.servlet.config.annotation with type arguments of type HttpMessageConverter

Modifier and Type	Method	Description
protected final void	WebMvcConfigurationSupport.addDefaultHttpMessageConverters(List<HttpMessageConverter<?>> messageConverters)	Adds a set of default HttpMessageConverter instances to the given list.
protected void	DelegatingWebMvcConfiguration.configureMessageConverters(List<HttpMessageConverter<?>> converters)
protected void	WebMvcConfigurationSupport.configureMessageConverters(List<HttpMessageConverter<?>> converters)	Override this method to add custom HttpMessageConverters to use with the RequestMappingHandlerAdapter and the ExceptionHandlerExceptionResolver.
default void	WebMvcConfigurer.configureMessageConverters(List<HttpMessageConverter<?>> converters)	Configure the HttpMessageConverters for reading from the request body and for writing to the response body.
protected void	DelegatingWebMvcConfiguration.extendMessageConverters(List<HttpMessageConverter<?>> converters)
protected void	WebMvcConfigurationSupport.extendMessageConverters(List<HttpMessageConverter<?>> converters)	Override this method to extend or modify the list of converters after it has been configured.
default void	WebMvcConfigurer.extendMessageConverters(List<HttpMessageConverter<?>> converters)	Extend or modify the list of converters after it has been, either configured or initialized with a default list.

Uses of HttpMessageConverter in org.springframework.web.servlet.function

Methods in org.springframework.web.servlet.function that return types with arguments of type HttpMessageConverter

Modifier and Type	Method	Description
List<HttpMessageConverter<?>>	ServerRequest.messageConverters()	Get the readers used to convert the body of this request.
List<HttpMessageConverter<?>>	ServerResponse.Context.messageConverters()	Return the HttpMessageConverters to be used for response body conversion.

Method parameters in org.springframework.web.servlet.function with type arguments of type HttpMessageConverter

Modifier and Type	Method	Description
static ServerRequest	ServerRequest.create(HttpServletRequest servletRequest, List<HttpMessageConverter<?>> messageReaders)	Create a new ServerRequest based on the given HttpServletRequest and message converters.

Uses of HttpMessageConverter in org.springframework.web.servlet.function.support

Method parameters in org.springframework.web.servlet.function.support with type arguments of type HttpMessageConverter

Modifier and Type	Method	Description
void	RouterFunctionMapping.setMessageConverters(List<HttpMessageConverter<?>> messageConverters)	Set the message body converters to use.

Uses of HttpMessageConverter in org.springframework.web.servlet.mvc.method.annotation

Fields in org.springframework.web.servlet.mvc.method.annotation with type parameters of type HttpMessageConverter

Modifier and Type	Field	Description
protected final List<HttpMessageConverter<?>>	AbstractMessageConverterMethodArgumentResolver.messageConverters

Methods in org.springframework.web.servlet.mvc.method.annotation that return types with arguments of type HttpMessageConverter

Modifier and Type	Method	Description
List<HttpMessageConverter<?>>	ExceptionHandlerExceptionResolver.getMessageConverters()	Return the configured message body converters.
List<HttpMessageConverter<?>>	RequestMappingHandlerAdapter.getMessageConverters()	Return the configured message body converters.

Method parameters in org.springframework.web.servlet.mvc.method.annotation with type arguments of type HttpMessageConverter

Modifier and Type	Method	Description
Object	RequestBodyAdvice.afterBodyRead(Object body, HttpInputMessage inputMessage, MethodParameter parameter, Type targetType, Class<? extends HttpMessageConverter<?>> converterType)	Invoked third (and last) after the request body is converted to an Object.
Object	RequestBodyAdviceAdapter.afterBodyRead(Object body, HttpInputMessage inputMessage, MethodParameter parameter, Type targetType, Class<? extends HttpMessageConverter<?>> converterType)	The default implementation returns the body that was passed in.
HttpInputMessage	JsonViewRequestBodyAdvice.beforeBodyRead(HttpInputMessage inputMessage, MethodParameter methodParameter, Type targetType, Class<? extends HttpMessageConverter<?>> selectedConverterType)
HttpInputMessage	RequestBodyAdvice.beforeBodyRead(HttpInputMessage inputMessage, MethodParameter parameter, Type targetType, Class<? extends HttpMessageConverter<?>> converterType)	Invoked second before the request body is read and converted.
HttpInputMessage	RequestBodyAdviceAdapter.beforeBodyRead(HttpInputMessage inputMessage, MethodParameter parameter, Type targetType, Class<? extends HttpMessageConverter<?>> converterType)	The default implementation returns the InputMessage that was passed in.
final Object	AbstractMappingJacksonResponseBodyAdvice.beforeBodyWrite(Object body, MethodParameter returnType, MediaType contentType, Class<? extends HttpMessageConverter<?>> converterType, ServerHttpRequest request, ServerHttpResponse response)
T	ResponseBodyAdvice.beforeBodyWrite(T body, MethodParameter returnType, MediaType selectedContentType, Class<? extends HttpMessageConverter<?>> selectedConverterType, ServerHttpRequest request, ServerHttpResponse response)	Invoked after an HttpMessageConverter is selected and just before its write method is invoked.
Object	RequestBodyAdvice.handleEmptyBody(Object body, HttpInputMessage inputMessage, MethodParameter parameter, Type targetType, Class<? extends HttpMessageConverter<?>> converterType)	Invoked second (and last) if the body is empty.
Object	RequestBodyAdviceAdapter.handleEmptyBody(Object body, HttpInputMessage inputMessage, MethodParameter parameter, Type targetType, Class<? extends HttpMessageConverter<?>> converterType)	The default implementation returns the body that was passed in.
void	ExceptionHandlerExceptionResolver.setMessageConverters(List<HttpMessageConverter<?>> messageConverters)	Set the message body converters to use.
void	RequestMappingHandlerAdapter.setMessageConverters(List<HttpMessageConverter<?>> messageConverters)	Provide the converters to use in argument resolvers and return value handlers that support reading and/or writing to the body of the request and response.
boolean	AbstractMappingJacksonResponseBodyAdvice.supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType)
boolean	JsonViewRequestBodyAdvice.supports(MethodParameter methodParameter, Type targetType, Class<? extends HttpMessageConverter<?>> converterType)
boolean	JsonViewResponseBodyAdvice.supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType)
boolean	RequestBodyAdvice.supports(MethodParameter methodParameter, Type targetType, Class<? extends HttpMessageConverter<?>> converterType)	Invoked first to determine if this interceptor applies.
boolean	ResponseBodyAdvice.supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType)	Whether this component supports the given controller method return type and the selected HttpMessageConverter type.

Constructor parameters in org.springframework.web.servlet.mvc.method.annotation with type arguments of type HttpMessageConverter

Modifier	Constructor	Description
	AbstractMessageConverterMethodArgumentResolver(List<HttpMessageConverter<?>> converters)	Basic constructor with converters only.
	AbstractMessageConverterMethodArgumentResolver(List<HttpMessageConverter<?>> converters, List<Object> requestResponseBodyAdvice)	Constructor with converters and Request~ and ResponseBodyAdvice.
protected	AbstractMessageConverterMethodProcessor(List<HttpMessageConverter<?>> converters)	Constructor with list of converters only.
protected	AbstractMessageConverterMethodProcessor(List<HttpMessageConverter<?>> converters, ContentNegotiationManager contentNegotiationManager)	Constructor with list of converters and ContentNegotiationManager.
protected	AbstractMessageConverterMethodProcessor(List<HttpMessageConverter<?>> converters, ContentNegotiationManager manager, List<Object> requestResponseBodyAdvice)	Variant of AbstractMessageConverterMethodProcessor(List) with an additional ContentNegotiationManager for return value handling.
protected	AbstractMessageConverterMethodProcessor(List<HttpMessageConverter<?>> converters, ContentNegotiationManager manager, List<Object> requestResponseBodyAdvice, List<ErrorResponse.Interceptor> interceptors)	Variant of AbstractMessageConverterMethodProcessor(List, ContentNegotiationManager, List) with additional list of ErrorResponse.Interceptors for return value handling.
	HttpEntityMethodProcessor(List<HttpMessageConverter<?>> converters)	Basic constructor with converters only.
	HttpEntityMethodProcessor(List<HttpMessageConverter<?>> converters, List<Object> requestResponseBodyAdvice)	Complete constructor for resolving HttpEntity method arguments.
	HttpEntityMethodProcessor(List<HttpMessageConverter<?>> converters, ContentNegotiationManager manager)	Basic constructor with converters and ContentNegotiationManager.
	HttpEntityMethodProcessor(List<HttpMessageConverter<?>> converters, ContentNegotiationManager manager, List<Object> requestResponseBodyAdvice)	Variant of HttpEntityMethodProcessor(List, List) with an additional ContentNegotiationManager argument for return value handling.
	HttpEntityMethodProcessor(List<HttpMessageConverter<?>> converters, ContentNegotiationManager manager, List<Object> requestResponseBodyAdvice, List<ErrorResponse.Interceptor> interceptors)	Variant of HttpEntityMethodProcessor(List, ContentNegotiationManager, List) with additional list of ErrorResponse.Interceptors for return value handling.
	RequestPartMethodArgumentResolver(List<HttpMessageConverter<?>> messageConverters)	Basic constructor with converters only.
	RequestPartMethodArgumentResolver(List<HttpMessageConverter<?>> messageConverters, List<Object> requestResponseBodyAdvice)	Constructor with converters and RequestBodyAdvice and ResponseBodyAdvice.
	RequestResponseBodyMethodProcessor(List<HttpMessageConverter<?>> converters)	Basic constructor with converters only.
	RequestResponseBodyMethodProcessor(List<HttpMessageConverter<?>> converters, List<Object> requestResponseBodyAdvice)	Complete constructor for resolving @RequestBody method arguments.
	RequestResponseBodyMethodProcessor(List<HttpMessageConverter<?>> converters, ContentNegotiationManager manager)	Basic constructor with converters and ContentNegotiationManager.
	RequestResponseBodyMethodProcessor(List<HttpMessageConverter<?>> converters, ContentNegotiationManager manager, List<Object> requestResponseBodyAdvice)	Variant of RequestResponseBodyMethodProcessor(List, List) with an additional ContentNegotiationManager argument, for return value handling.
	RequestResponseBodyMethodProcessor(List<HttpMessageConverter<?>> converters, ContentNegotiationManager manager, List<Object> requestResponseBodyAdvice, List<ErrorResponse.Interceptor> interceptors)	Variant ofRequestResponseBodyMethodProcessor(List, ContentNegotiationManager, List) with an additional ErrorResponse.Interceptor argument for return value handling.
	ResponseBodyEmitterReturnValueHandler(List<HttpMessageConverter<?>> messageConverters)	Simple constructor with reactive type support based on a default instance of ReactiveAdapterRegistry, SyncTaskExecutor, and ContentNegotiationManager with an Accept header strategy.
	ResponseBodyEmitterReturnValueHandler(List<HttpMessageConverter<?>> messageConverters, ReactiveAdapterRegistry registry, TaskExecutor executor, ContentNegotiationManager manager)	Complete constructor with pluggable "reactive" type support.