Compatibility with Jackson 2.12 (tested against 2.12.0-rc1)

Closes gh-25907

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

@@ -55,7 +55,7 @@ import org.springframework.util.ClassUtils;
  * <li>{@link DeserializationFeature#FAIL_ON_UNKNOWN_PROPERTIES} is disabled</li>
  * </ul>
  *
- * <p>Compatible with Jackson 2.6 and higher, as of Spring 4.3.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Mark Pollack
  * @author Dave Syer

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

@@ -52,7 +52,7 @@ import org.springframework.util.MimeType;
  * <li>{@link DeserializationFeature#FAIL_ON_UNKNOWN_PROPERTIES} is disabled</li>
  * </ul>
  *
- * <p>Compatible with Jackson 2.9 and higher, as of Spring 5.1.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Rossen Stoyanchev
  * @author Juergen Hoeller

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -37,7 +37,7 @@ import org.springframework.util.Assert;
  * <p>The default constructor uses the default configuration provided by
  * {@link Jackson2ObjectMapperBuilder}.
  *
- * <p>Compatible with Jackson 2.9 and higher.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Sebastien Deleuze
  * @since 5.0

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

@@ -61,7 +61,7 @@ import org.springframework.util.TypeUtils;
  * Abstract base class for Jackson based and content type independent
  * {@link HttpMessageConverter} implementations.
  *
- * <p>Compatible with Jackson 2.9 and higher, as of Spring 5.0.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Arjen Poutsma
  * @author Keith Donald

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

@@ -92,7 +92,7 @@ import org.springframework.util.xml.StaxUtils;
  * support for Kotlin classes and data classes</li>
  * </ul>
  *
- * <p>Compatible with Jackson 2.6 and higher, as of Spring 4.3.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Sebastien Deleuze
  * @author Juergen Hoeller
@@ -649,8 +649,8 @@ public class Jackson2ObjectMapperBuilder {
 	 * An option to apply additional customizations directly to the
 	 * {@code ObjectMapper} instances at the end, after all other config
 	 * properties of the builder have been applied.
-	 * @param configurer a configurer to apply; if invoked multiple times, all
-	 * configurers are applied in the same order.
+	 * @param configurer a configurer to apply. If several configurers are
+	 * registered, they will get applied in their registration order.
 	 * @since 5.3
 	 */
 	public Jackson2ObjectMapperBuilder postConfigurer(Consumer<ObjectMapper> configurer) {

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -135,7 +135,7 @@ import org.springframework.lang.Nullable;
  * </bean
  * </pre>
  *
- * <p>Compatible with Jackson 2.6 and higher, as of Spring 4.3.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author <a href="mailto:dmitry.katsubo@gmail.com">Dmitry Katsubo</a>
  * @author Rossen Stoyanchev

spring-web/src/main/java/org/springframework/http/converter/json/MappingJackson2HttpMessageConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -36,7 +36,7 @@ import org.springframework.lang.Nullable;
  *
  * <p>The default constructor uses the default configuration provided by {@link Jackson2ObjectMapperBuilder}.
  *
- * <p>Compatible with Jackson 2.9 and higher, as of Spring 5.0.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Arjen Poutsma
  * @author Keith Donald

spring-web/src/main/java/org/springframework/http/converter/smile/MappingJackson2SmileHttpMessageConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -35,7 +35,7 @@ import org.springframework.util.Assert;
  *
  * <p>The default constructor uses the default configuration provided by {@link Jackson2ObjectMapperBuilder}.
  *
- * <p>Compatible with Jackson 2.9 and higher.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Sebastien Deleuze
  * @since 5.0

spring-web/src/main/java/org/springframework/http/converter/xml/MappingJackson2XmlHttpMessageConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -37,7 +37,7 @@ import org.springframework.util.Assert;
  *
  * <p>The default constructor uses the default configuration provided by {@link Jackson2ObjectMapperBuilder}.
  *
- * <p>Compatible with Jackson 2.9 and higher, as of Spring 5.0.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Sebastien Deleuze
  * @since 4.1

spring-web/src/test/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilderTests.java

@@ -354,7 +354,7 @@ class Jackson2ObjectMapperBuilderTests {
 
 	@Test
 	void propertyNamingStrategy() {
-		PropertyNamingStrategy strategy = new PropertyNamingStrategy.LowerCaseWithUnderscoresStrategy();
+		PropertyNamingStrategy strategy = new PropertyNamingStrategy.SnakeCaseStrategy();
 		ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.json().propertyNamingStrategy(strategy).build();
 		assertThat(objectMapper.getSerializationConfig().getPropertyNamingStrategy()).isSameAs(strategy);
 		assertThat(objectMapper.getDeserializationConfig().getPropertyNamingStrategy()).isSameAs(strategy);
@@ -430,9 +430,8 @@ class Jackson2ObjectMapperBuilderTests {
 		assertThat(output).doesNotContain("value2");
 	}
 
-	@Test // gh-23017
+	@Test  // gh-23017
 	void postConfigurer() {
-
 		JacksonAnnotationIntrospector introspector1 = new JacksonAnnotationIntrospector();
 		JacksonAnnotationIntrospector introspector2 = new JacksonAnnotationIntrospector();
 
@@ -456,7 +455,7 @@ class Jackson2ObjectMapperBuilderTests {
 		JsonSerializer<Number> serializer2 = new NumberSerializer(Integer.class);
 
 		Jackson2ObjectMapperBuilder builder = Jackson2ObjectMapperBuilder.json()
-				.modules(new ArrayList<>()) // Disable well-known modules detection
+				.modules(new ArrayList<>())  // Disable well-known modules detection
 				.serializers(serializer1)
 				.serializersByType(Collections.singletonMap(Boolean.class, serializer2))
 				.deserializersByType(deserializerMap)
@@ -564,7 +563,6 @@ class Jackson2ObjectMapperBuilderTests {
 		assertThat(objectMapper.getFactory().getClass()).isEqualTo(SmileFactory.class);
 	}
 
-
 	@Test
 	void visibility() throws JsonProcessingException {
 		ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.json()
@@ -578,6 +576,7 @@ class Jackson2ObjectMapperBuilderTests {
 		assertThat(json).doesNotContain("property3");
 	}
 
+
 	static class CustomIntegerModule extends Module {
 
 		@Override
@@ -664,6 +663,7 @@ class Jackson2ObjectMapperBuilderTests {
 		}
 	}
 
+
 	static class JacksonVisibilityBean {
 
 		@SuppressWarnings("unused")
@@ -674,9 +674,9 @@ class Jackson2ObjectMapperBuilderTests {
 		public String getProperty3() {
 			return null;
 		}
-
 	}
 
+
 	static class OffsetDateTimeDeserializer extends JsonDeserializer<OffsetDateTime> {
 
 		private static final String CURRENT_ZONE_OFFSET = OffsetDateTime.now().getOffset().toString();
@@ -697,6 +697,7 @@ class Jackson2ObjectMapperBuilderTests {
 		}
 	}
 
+
 	@JsonDeserialize
 	static class DemoPojo {
 
@@ -709,7 +710,6 @@ class Jackson2ObjectMapperBuilderTests {
 		public void setOffsetDateTime(OffsetDateTime offsetDateTime) {
 			this.offsetDateTime = offsetDateTime;
 		}
-
 	}
 
 	@SuppressWarnings("serial")

spring-web/src/test/java/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBeanTests.java

@@ -261,7 +261,7 @@ public class Jackson2ObjectMapperFactoryBeanTests {
 
 	@Test
 	public void propertyNamingStrategy() {
-		PropertyNamingStrategy strategy = new PropertyNamingStrategy.LowerCaseWithUnderscoresStrategy();
+		PropertyNamingStrategy strategy = new PropertyNamingStrategy.SnakeCaseStrategy();
 		this.factory.setPropertyNamingStrategy(strategy);
 		this.factory.afterPropertiesSet();
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -46,7 +46,6 @@ import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
 import com.fasterxml.jackson.databind.jsontype.TypeIdResolver;
 import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
 import com.fasterxml.jackson.databind.jsontype.impl.StdTypeResolverBuilder;
-import com.fasterxml.jackson.databind.type.TypeFactory;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
@@ -202,11 +201,6 @@ public class SpringHandlerInstantiatorTests {
 			return JsonTypeInfo.Id.CUSTOM;
 		}
 
-		// Only needed when compiling against Jackson 2.7; gone in 2.8
-		public JavaType typeFromId(String s) {
-			return TypeFactory.defaultInstance().constructFromCanonical(s);
-		}
-
 		@Override
 		public String idFromValue(Object value) {
 			isAutowiredFiledInitialized = (this.capitalizer != null);
@@ -227,7 +221,6 @@ public class SpringHandlerInstantiatorTests {
 			return null;
 		}
 
-		// New in Jackson 2.7
 		@Override
 		public String getDescForKnownTypeIds() {
 			return null;

spring-webmvc/src/main/java/org/springframework/web/servlet/view/json/AbstractJackson2View.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -41,7 +41,7 @@ import org.springframework.web.servlet.view.AbstractView;
  * Abstract base class for Jackson based and content type independent
  * {@link AbstractView} implementations.
  *
- * <p>Compatible with Jackson 2.6 and higher, as of Spring 4.3.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Jeremy Grelle
  * @author Arjen Poutsma

spring-webmvc/src/main/java/org/springframework/web/servlet/view/json/MappingJackson2JsonView.java

@@ -42,7 +42,7 @@ import org.springframework.web.servlet.View;
  *
  * <p>The default constructor uses the default configuration provided by {@link Jackson2ObjectMapperBuilder}.
  *
- * <p>Compatible with Jackson 2.6 and higher, as of Spring 4.3.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Jeremy Grelle
  * @author Arjen Poutsma

spring-webmvc/src/main/java/org/springframework/web/servlet/view/xml/MappingJackson2XmlView.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -38,7 +38,7 @@ import org.springframework.web.servlet.view.json.AbstractJackson2View;
  *
  * <p>The default constructor uses the default configuration provided by {@link Jackson2ObjectMapperBuilder}.
  *
- * <p>Compatible with Jackson 2.6 and higher, as of Spring 4.3.
+ * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
  * @author Sebastien Deleuze
  * @since 4.1