Deprecate auto-configuration for Joda-Time

Closes gh-17419

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jackson/JacksonAutoConfiguration.java

@@ -108,6 +108,7 @@ public class JacksonAutoConfiguration {
 
 	}
 
+	@Deprecated
 	@Configuration(proxyBeanMethods = false)
 	@ConditionalOnClass({ Jackson2ObjectMapperBuilder.class, DateTime.class, DateTimeSerializer.class,
 			JacksonJodaDateFormat.class })
@@ -117,6 +118,8 @@ public class JacksonAutoConfiguration {
 
 		@Bean
 		SimpleModule jodaDateTimeSerializationModule(JacksonProperties jacksonProperties) {
+			logger.warn("Auto-configuration of Jackson's Joda-Time integration is deprecated in favor of using "
+					+ "java.time (JSR-310).");
 			SimpleModule module = new SimpleModule();
 			JacksonJodaDateFormat jacksonJodaFormat = getJacksonJodaDateFormat(jacksonProperties);
 			if (jacksonJodaFormat != null) {

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jackson/JacksonProperties.java

@@ -31,6 +31,7 @@ import com.fasterxml.jackson.databind.MapperFeature;
 import com.fasterxml.jackson.databind.SerializationFeature;
 
 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.DeprecatedConfigurationProperty;
 
 /**
  * Configuration properties to configure Jackson.
@@ -117,6 +118,10 @@ public class JacksonProperties {
 		this.dateFormat = dateFormat;
 	}
 
+	@Deprecated
+	@DeprecatedConfigurationProperty(replacement = "dateFormat",
+			reason = "Auto-configuration for Jackson's Joda-Time integration is "
+					+ "deprecated in favor of its Java 8 Time integration")
 	public String getJodaDateTimeFormat() {
 		return this.jodaDateTimeFormat;
 	}

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/format/WebConversionService.java

@@ -19,6 +19,8 @@ package org.springframework.boot.autoconfigure.web.format;
 import java.time.format.DateTimeFormatter;
 import java.time.format.ResolverStyle;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.joda.time.format.DateTimeFormatterBuilder;
 
 import org.springframework.format.datetime.DateFormatter;
@@ -49,9 +51,12 @@ public class WebConversionService extends DefaultFormattingConversionService {
 	private static final boolean JSR_354_PRESENT = ClassUtils.isPresent("javax.money.MonetaryAmount",
 			WebConversionService.class.getClassLoader());
 
+	@Deprecated
 	private static final boolean JODA_TIME_PRESENT = ClassUtils.isPresent("org.joda.time.LocalDate",
 			WebConversionService.class.getClassLoader());
 
+	private static final Log logger = LogFactory.getLog(WebConversionService.class);
+
 	private final String dateFormat;
 
 	/**
@@ -93,7 +98,9 @@ public class WebConversionService extends DefaultFormattingConversionService {
 		dateTime.registerFormatters(this);
 	}
 
+	@Deprecated
 	private void registerJodaTime() {
+		logger.warn("Auto-configuration of Joda-Time formatters is deprecated in favor of using java.time (JSR-310).");
 		JodaTimeFormatterRegistrar jodaTime = new JodaTimeFormatterRegistrar();
 		if (this.dateFormat != null) {
 			jodaTime.setDateFormatter(new DateTimeFormatterBuilder().appendPattern(this.dateFormat).toFormatter());

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/gson/GsonAutoConfigurationTests.java

@@ -16,6 +16,8 @@
 
 package org.springframework.boot.autoconfigure.gson;
 
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
 import java.util.Date;
 import java.util.LinkedHashMap;
 import java.util.Map;
@@ -26,7 +28,6 @@ import com.google.gson.FieldNamingPolicy;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.LongSerializationPolicy;
-import org.joda.time.DateTime;
 import org.junit.jupiter.api.Test;
 
 import org.springframework.boot.autoconfigure.AutoConfigurations;
@@ -198,9 +199,8 @@ class GsonAutoConfigurationTests {
 	void customDateFormat() {
 		this.contextRunner.withPropertyValues("spring.gson.date-format:H").run((context) -> {
 			Gson gson = context.getBean(Gson.class);
-			DateTime dateTime = new DateTime(1988, 6, 25, 20, 30);
-			Date date = dateTime.toDate();
-			assertThat(gson.toJson(date)).isEqualTo("\"20\"");
+			ZonedDateTime dateTime = ZonedDateTime.of(1988, 6, 25, 20, 30, 0, 0, ZoneId.systemDefault());
+			assertThat(gson.toJson(Date.from(dateTime.toInstant()))).isEqualTo("\"20\"");
 		});
 	}
 

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jackson/JacksonAutoConfigurationTests.java

@@ -80,6 +80,7 @@ class JacksonAutoConfigurationTests {
 			.withConfiguration(AutoConfigurations.of(JacksonAutoConfiguration.class));
 
 	@Test
+	@Deprecated
 	void registersJodaModuleAutomatically() {
 		this.contextRunner.run((context) -> {
 			ObjectMapper objectMapper = context.getBean(ObjectMapper.class);
@@ -116,6 +117,7 @@ class JacksonAutoConfigurationTests {
 	}
 
 	@Test
+	@Deprecated
 	void customJodaDateTimeFormat() throws Exception {
 		this.contextRunner.withPropertyValues("spring.jackson.date-format:yyyyMMddHHmmss",
 				"spring.jackson.joda-date-time-format:yyyy-MM-dd HH:mm:ss").run((context) -> {
@@ -336,6 +338,7 @@ class JacksonAutoConfigurationTests {
 	}
 
 	@Test
+	@Deprecated
 	void customLocaleWithJodaTime() throws JsonProcessingException {
 		this.contextRunner.withPropertyValues("spring.jackson.locale:de_DE", "spring.jackson.date-format:zzzz",
 				"spring.jackson.serialization.write-dates-with-zone-id:true").run((context) -> {

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/format/WebConversionServiceTests.java

@@ -16,6 +16,8 @@
 
 package org.springframework.boot.autoconfigure.web.format;
 
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
 import java.util.Date;
 
 import org.joda.time.DateTime;
@@ -33,14 +35,24 @@ import static org.assertj.core.api.Assertions.assertThat;
 class WebConversionServiceTests {
 
 	@Test
-	void customDateFormat() {
+	void customDateFormatWithJavaUtilDate() {
+		customDateFormat(Date.from(ZonedDateTime.of(2018, 1, 1, 20, 30, 0, 0, ZoneId.systemDefault()).toInstant()));
+	}
+
+	@Test
+	@Deprecated
+	void customDateFormatWithJodaTime() {
+		customDateFormat(LocalDate.fromDateFields(new DateTime(2018, 1, 1, 20, 30).toDate()));
+	}
+
+	@Test
+	void customDateFormatWithJavaTime() {
+		customDateFormat(java.time.LocalDate.of(2018, 1, 1));
+	}
+
+	private void customDateFormat(Object input) {
 		WebConversionService conversionService = new WebConversionService("dd*MM*yyyy");
-		Date date = new DateTime(2018, 1, 1, 20, 30).toDate();
-		assertThat(conversionService.convert(date, String.class)).isEqualTo("01*01*2018");
-		LocalDate jodaDate = LocalDate.fromDateFields(date);
-		assertThat(conversionService.convert(jodaDate, String.class)).isEqualTo("01*01*2018");
-		java.time.LocalDate localDate = java.time.LocalDate.of(2018, 1, 1);
-		assertThat(conversionService.convert(localDate, String.class)).isEqualTo("01*01*2018");
+		assertThat(conversionService.convert(input, String.class)).isEqualTo("01*01*2018");
 	}
 
 	@Test

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/reactive/WebFluxAutoConfigurationTests.java

@@ -16,6 +16,8 @@
 
 package org.springframework.boot.autoconfigure.web.reactive;
 
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
 import java.util.Collections;
 import java.util.Date;
 import java.util.List;
@@ -26,7 +28,6 @@ import java.util.concurrent.TimeUnit;
 import javax.validation.ValidatorFactory;
 
 import org.assertj.core.api.Assertions;
-import org.joda.time.DateTime;
 import org.junit.jupiter.api.Test;
 
 import org.springframework.boot.autoconfigure.AutoConfigurations;
@@ -187,7 +188,7 @@ class WebFluxAutoConfigurationTests {
 	void noDateFormat() {
 		this.contextRunner.run((context) -> {
 			FormattingConversionService conversionService = context.getBean(FormattingConversionService.class);
-			Date date = new DateTime(1988, 6, 25, 20, 30).toDate();
+			Date date = Date.from(ZonedDateTime.of(1988, 6, 25, 20, 30, 0, 0, ZoneId.systemDefault()).toInstant());
 			// formatting conversion service should use simple toString()
 			assertThat(conversionService.convert(date, String.class)).isEqualTo(date.toString());
 		});
@@ -197,7 +198,7 @@ class WebFluxAutoConfigurationTests {
 	void overrideDateFormat() {
 		this.contextRunner.withPropertyValues("spring.webflux.date-format:dd*MM*yyyy").run((context) -> {
 			FormattingConversionService conversionService = context.getBean(FormattingConversionService.class);
-			Date date = new DateTime(1988, 6, 25, 20, 30).toDate();
+			Date date = Date.from(ZonedDateTime.of(1988, 6, 25, 20, 30, 0, 0, ZoneId.systemDefault()).toInstant());
 			assertThat(conversionService.convert(date, String.class)).isEqualTo("25*06*1988");
 		});
 	}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfigurationTests.java

@@ -16,6 +16,8 @@
 
 package org.springframework.boot.autoconfigure.web.servlet;
 
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
 import java.util.Collections;
 import java.util.Date;
 import java.util.LinkedHashMap;
@@ -30,7 +32,6 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.validation.ValidatorFactory;
 
-import org.joda.time.DateTime;
 import org.junit.jupiter.api.Test;
 
 import org.springframework.boot.autoconfigure.AutoConfigurations;
@@ -321,7 +322,7 @@ class WebMvcAutoConfigurationTests {
 	void noDateFormat() {
 		this.contextRunner.run((context) -> {
 			FormattingConversionService conversionService = context.getBean(FormattingConversionService.class);
-			Date date = new DateTime(1988, 6, 25, 20, 30).toDate();
+			Date date = Date.from(ZonedDateTime.of(1988, 6, 25, 20, 30, 0, 0, ZoneId.systemDefault()).toInstant());
 			// formatting conversion service should use simple toString()
 			assertThat(conversionService.convert(date, String.class)).isEqualTo(date.toString());
 		});
@@ -331,7 +332,7 @@ class WebMvcAutoConfigurationTests {
 	void overrideDateFormat() {
 		this.contextRunner.withPropertyValues("spring.mvc.date-format:dd*MM*yyyy").run((context) -> {
 			FormattingConversionService conversionService = context.getBean(FormattingConversionService.class);
-			Date date = new DateTime(1988, 6, 25, 20, 30).toDate();
+			Date date = Date.from(ZonedDateTime.of(1988, 6, 25, 20, 30, 0, 0, ZoneId.systemDefault()).toInstant());
 			assertThat(conversionService.convert(date, String.class)).isEqualTo("25*06*1988");
 		});
 	}