/**
 * Adds a set of default HttpMessageConverter instances to the given list.
 * Subclasses can call this method from {@link #configureMessageConverters(List)}.
 * @param messageConverters the list to add the default message converters to
 */
protected final void addDefaultHttpMessageConverters(List<HttpMessageConverter<?>> messageConverters) {
	StringHttpMessageConverter stringConverter = new StringHttpMessageConverter();
	stringConverter.setWriteAcceptCharset(false);

	messageConverters.add(new ByteArrayHttpMessageConverter());
	messageConverters.add(stringConverter);
	messageConverters.add(new ResourceHttpMessageConverter());
	messageConverters.add(new SourceHttpMessageConverter<Source>());
	messageConverters.add(new AllEncompassingFormHttpMessageConverter());

	if (romePresent) {
		messageConverters.add(new AtomFeedHttpMessageConverter());
		messageConverters.add(new RssChannelHttpMessageConverter());
	}

	if (jackson2XmlPresent) {
		messageConverters.add(new MappingJackson2XmlHttpMessageConverter(
				Jackson2ObjectMapperBuilder.xml().applicationContext(this.applicationContext).build()));
	}
	else if (jaxb2Present) {
		messageConverters.add(new Jaxb2RootElementHttpMessageConverter());
	}

	if (jackson2Present) {
		messageConverters.add(new MappingJackson2HttpMessageConverter(
				Jackson2ObjectMapperBuilder.json().applicationContext(this.applicationContext).build()));
	}
	else if (gsonPresent) {
		messageConverters.add(new GsonHttpMessageConverter());
	}
}
 

/**
 * Create a new instance of the {@link RestTemplate} using default settings.
 * Default {@link HttpMessageConverter}s are initialized.
 */
public RestTemplate() {
	this.messageConverters.add(new ByteArrayHttpMessageConverter());
	this.messageConverters.add(new StringHttpMessageConverter());
	this.messageConverters.add(new ResourceHttpMessageConverter());
	this.messageConverters.add(new SourceHttpMessageConverter<Source>());
	this.messageConverters.add(new AllEncompassingFormHttpMessageConverter());

	if (romePresent) {
		this.messageConverters.add(new AtomFeedHttpMessageConverter());
		this.messageConverters.add(new RssChannelHttpMessageConverter());
	}

	if (jackson2XmlPresent) {
		this.messageConverters.add(new MappingJackson2XmlHttpMessageConverter());
	}
	else if (jaxb2Present) {
		this.messageConverters.add(new Jaxb2RootElementHttpMessageConverter());
	}

	if (jackson2Present) {
		this.messageConverters.add(new MappingJackson2HttpMessageConverter());
	}
	else if (gsonPresent) {
		this.messageConverters.add(new GsonHttpMessageConverter());
	}
}
 

/**
 * Create a new instance of the {@link RestTemplate} using default settings.
 * Default {@link HttpMessageConverter}s are initialized.
 */
public RestTemplate() {
	this.messageConverters.add(new ByteArrayHttpMessageConverter());
	this.messageConverters.add(new StringHttpMessageConverter());
	this.messageConverters.add(new ResourceHttpMessageConverter());
	this.messageConverters.add(new SourceHttpMessageConverter<Source>());
	this.messageConverters.add(new AllEncompassingFormHttpMessageConverter());

	if (romePresent) {
		this.messageConverters.add(new AtomFeedHttpMessageConverter());
		this.messageConverters.add(new RssChannelHttpMessageConverter());
	}

	if (jackson2XmlPresent) {
		this.messageConverters.add(new MappingJackson2XmlHttpMessageConverter());
	}
	else if (jaxb2Present) {
		this.messageConverters.add(new Jaxb2RootElementHttpMessageConverter());
	}

	if (jackson2Present) {
		this.messageConverters.add(new MappingJackson2HttpMessageConverter());
	}
	else if (gsonPresent) {
		this.messageConverters.add(new GsonHttpMessageConverter());
	}
}
 

/**
 * Create a new instance of the {@link RestTemplate} using default settings.
 * Default {@link HttpMessageConverter HttpMessageConverters} are initialized.
 */
public RestTemplate() {
	this.messageConverters.add(new ByteArrayHttpMessageConverter());
	this.messageConverters.add(new StringHttpMessageConverter());
	this.messageConverters.add(new ResourceHttpMessageConverter(false));
	try {
		this.messageConverters.add(new SourceHttpMessageConverter<>());
	}
	catch (Error err) {
		// Ignore when no TransformerFactory implementation is available
	}
	this.messageConverters.add(new AllEncompassingFormHttpMessageConverter());

	if (romePresent) {
		this.messageConverters.add(new AtomFeedHttpMessageConverter());
		this.messageConverters.add(new RssChannelHttpMessageConverter());
	}

	if (jackson2XmlPresent) {
		this.messageConverters.add(new MappingJackson2XmlHttpMessageConverter());
	}
	else if (jaxb2Present) {
		this.messageConverters.add(new Jaxb2RootElementHttpMessageConverter());
	}

	if (jackson2Present) {
		this.messageConverters.add(new MappingJackson2HttpMessageConverter());
	}
	else if (gsonPresent) {
		this.messageConverters.add(new GsonHttpMessageConverter());
	}
	else if (jsonbPresent) {
		this.messageConverters.add(new JsonbHttpMessageConverter());
	}

	if (jackson2SmilePresent) {
		this.messageConverters.add(new MappingJackson2SmileHttpMessageConverter());
	}
	if (jackson2CborPresent) {
		this.messageConverters.add(new MappingJackson2CborHttpMessageConverter());
	}

	this.uriTemplateHandler = initUriTemplateHandler();
}
 

/**
 * Create a new instance of the {@link RestTemplate} using default settings.
 * Default {@link HttpMessageConverter HttpMessageConverters} are initialized.
 */
public RestTemplate() {
	this.messageConverters.add(new ByteArrayHttpMessageConverter());
	this.messageConverters.add(new StringHttpMessageConverter());
	this.messageConverters.add(new ResourceHttpMessageConverter(false));
	try {
		this.messageConverters.add(new SourceHttpMessageConverter<>());
	}
	catch (Error err) {
		// Ignore when no TransformerFactory implementation is available
	}
	this.messageConverters.add(new AllEncompassingFormHttpMessageConverter());

	if (romePresent) {
		this.messageConverters.add(new AtomFeedHttpMessageConverter());
		this.messageConverters.add(new RssChannelHttpMessageConverter());
	}

	if (jackson2XmlPresent) {
		this.messageConverters.add(new MappingJackson2XmlHttpMessageConverter());
	}
	else if (jaxb2Present) {
		this.messageConverters.add(new Jaxb2RootElementHttpMessageConverter());
	}

	if (jackson2Present) {
		this.messageConverters.add(new MappingJackson2HttpMessageConverter());
	}
	else if (gsonPresent) {
		this.messageConverters.add(new GsonHttpMessageConverter());
	}
	else if (jsonbPresent) {
		this.messageConverters.add(new JsonbHttpMessageConverter());
	}

	if (jackson2SmilePresent) {
		this.messageConverters.add(new MappingJackson2SmileHttpMessageConverter());
	}
	if (jackson2CborPresent) {
		this.messageConverters.add(new MappingJackson2CborHttpMessageConverter());
	}

	this.uriTemplateHandler = initUriTemplateHandler();
}
 

@Override
public void initialize(GenericApplicationContext context) {
	context.registerBean("rssChannelHttpMessageConverter", HttpMessageConverter.class, RssChannelHttpMessageConverter::new);
}
 

@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    converters.add(new StringHttpMessageConverter());
    converters.add(new RssChannelHttpMessageConverter());
    converters.add(new JsonChannelHttpMessageConverter());
}