Merge branch '6.2.x'

spring-core/src/main/java/org/springframework/aot/hint/support/ObjectToObjectConverterRuntimeHints.java

@@ -16,6 +16,7 @@
 
 package org.springframework.aot.hint.support;
 
+import java.time.Instant;
 import java.time.LocalDate;
 import java.util.Collections;
 import java.util.List;
@@ -34,6 +35,7 @@ import org.springframework.aot.hint.TypeReference;
  * {@code org.springframework.core.convert.support.ObjectToObjectConverter}.
  *
  * @author Sebastien Deleuze
+ * @author Sam Brannen
  * @since 6.0
  */
 class ObjectToObjectConverterRuntimeHints implements RuntimeHintsRegistrar {
@@ -41,6 +43,7 @@ class ObjectToObjectConverterRuntimeHints implements RuntimeHintsRegistrar {
 	@Override
 	public void registerHints(RuntimeHints hints, @Nullable ClassLoader classLoader) {
 		ReflectionHints reflectionHints = hints.reflection();
+
 		TypeReference sqlDateTypeReference = TypeReference.of("java.sql.Date");
 		reflectionHints.registerTypeIfPresent(classLoader, sqlDateTypeReference.getName(), hint -> hint
 				.withMethod("toLocalDate", Collections.emptyList(), ExecutableMode.INVOKE)
@@ -48,8 +51,14 @@ class ObjectToObjectConverterRuntimeHints implements RuntimeHintsRegistrar {
 				.withMethod("valueOf", List.of(TypeReference.of(LocalDate.class)), ExecutableMode.INVOKE)
 				.onReachableType(sqlDateTypeReference));
 
+		TypeReference sqlTimestampTypeReference = TypeReference.of("java.sql.Timestamp");
+		reflectionHints.registerTypeIfPresent(classLoader, sqlTimestampTypeReference.getName(), hint -> hint
+				.withMethod("from", List.of(TypeReference.of(Instant.class)), ExecutableMode.INVOKE)
+				.onReachableType(sqlTimestampTypeReference));
+
 		reflectionHints.registerTypeIfPresent(classLoader, "org.springframework.http.HttpMethod",
 				builder -> builder.withMethod("valueOf", List.of(TypeReference.of(String.class)), ExecutableMode.INVOKE));
+
 		reflectionHints.registerTypeIfPresent(classLoader, "java.net.URI", MemberCategory.INVOKE_DECLARED_CONSTRUCTORS);
 	}
 

spring-core/src/main/java/org/springframework/core/convert/support/DateToInstantConverter.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2002-present 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.core.convert.support;
+
+import java.time.Instant;
+import java.util.Date;
+
+import org.springframework.core.convert.converter.Converter;
+
+/**
+ * Convert a {@link java.util.Date} to a {@link java.time.Instant}.
+ *
+ * <p>This includes conversion support for {@link java.sql.Timestamp} and other
+ * subtypes of {@code java.util.Date}. Note, however, that an attempt to convert
+ * a {@link java.sql.Date} or {@link java.sql.Time} to a {@code java.time.Instant}
+ * results in an {@link UnsupportedOperationException} since those types do not
+ * have time or date components, respectively.
+ *
+ * @author Sam Brannen
+ * @since 6.2.9
+ * @see Date#toInstant()
+ * @see InstantToDateConverter
+ */
+final class DateToInstantConverter implements Converter<Date, Instant> {
+
+	@Override
+	public Instant convert(Date date) {
+		return date.toInstant();
+	}
+
+}

spring-core/src/main/java/org/springframework/core/convert/support/DefaultConversionService.java

@@ -91,6 +91,8 @@ public class DefaultConversionService extends GenericConversionService {
 		addCollectionConverters(converterRegistry);
 
 		converterRegistry.addConverter(new ByteBufferConverter((ConversionService) converterRegistry));
+		converterRegistry.addConverter(new DateToInstantConverter());
+		converterRegistry.addConverter(new InstantToDateConverter());
 		converterRegistry.addConverter(new StringToTimeZoneConverter());
 		converterRegistry.addConverter(new ZoneIdToTimeZoneConverter());
 		converterRegistry.addConverter(new ZonedDateTimeToCalendarConverter());

spring-core/src/main/java/org/springframework/core/convert/support/InstantToDateConverter.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2002-present 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.core.convert.support;
+
+import java.time.Instant;
+import java.util.Date;
+
+import org.springframework.core.convert.TypeDescriptor;
+import org.springframework.core.convert.converter.ConditionalConverter;
+import org.springframework.core.convert.converter.Converter;
+
+/**
+ * Convert a {@link java.time.Instant} to a {@link java.util.Date}.
+ *
+ * <p>This does not include conversion support for target types which are subtypes
+ * of {@code java.util.Date}.
+ *
+ * @author Sam Brannen
+ * @since 6.2.9
+ * @see Date#from(Instant)
+ * @see DateToInstantConverter
+ */
+final class InstantToDateConverter implements ConditionalConverter, Converter<Instant, Date> {
+
+	@Override
+	public boolean matches(TypeDescriptor sourceType, TypeDescriptor targetType) {
+		return targetType.getType().equals(Date.class);
+	}
+
+	@Override
+	public Date convert(Instant instant) {
+		return Date.from(instant);
+	}
+
+}

spring-core/src/test/java/org/springframework/aot/hint/support/ObjectToObjectConverterRuntimeHintsTests.java

@@ -17,6 +17,7 @@
 package org.springframework.aot.hint.support;
 
 import java.net.URI;
+import java.time.Instant;
 import java.time.LocalDate;
 
 import org.junit.jupiter.api.BeforeEach;
@@ -24,38 +25,45 @@ import org.junit.jupiter.api.Test;
 
 import org.springframework.aot.hint.RuntimeHints;
 import org.springframework.aot.hint.RuntimeHintsRegistrar;
-import org.springframework.aot.hint.predicate.RuntimeHintsPredicates;
 import org.springframework.core.io.support.SpringFactoriesLoader;
 import org.springframework.util.ClassUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.aot.hint.predicate.RuntimeHintsPredicates.reflection;
 
 /**
  * Tests for {@link ObjectToObjectConverterRuntimeHints}.
  *
  * @author Sebastien Deleuze
+ * @author Sam Brannen
  */
 class ObjectToObjectConverterRuntimeHintsTests {
 
-	private RuntimeHints hints;
+	private final RuntimeHints hints = new RuntimeHints();
+
 
 	@BeforeEach
 	void setup() {
-		this.hints = new RuntimeHints();
+		ClassLoader classLoader = ClassUtils.getDefaultClassLoader();
 		SpringFactoriesLoader.forResourceLocation("META-INF/spring/aot.factories")
-				.load(RuntimeHintsRegistrar.class).forEach(registrar -> registrar
-						.registerHints(this.hints, ClassUtils.getDefaultClassLoader()));
+				.load(RuntimeHintsRegistrar.class)
+				.forEach(registrar -> registrar.registerHints(this.hints, classLoader));
 	}
 
 	@Test
 	void javaSqlDateHasHints() throws NoSuchMethodException {
-		assertThat(RuntimeHintsPredicates.reflection().onMethodInvocation(java.sql.Date.class, "toLocalDate")).accepts(this.hints);
-		assertThat(RuntimeHintsPredicates.reflection().onMethodInvocation(java.sql.Date.class.getMethod("valueOf", LocalDate.class))).accepts(this.hints);
+		assertThat(reflection().onMethodInvocation(java.sql.Date.class, "toLocalDate")).accepts(this.hints);
+		assertThat(reflection().onMethodInvocation(java.sql.Date.class.getMethod("valueOf", LocalDate.class))).accepts(this.hints);
+	}
+
+	@Test  // gh-35156
+	void javaSqlTimestampHasHints() throws NoSuchMethodException {
+		assertThat(reflection().onMethodInvocation(java.sql.Timestamp.class.getMethod("from", Instant.class))).accepts(this.hints);
 	}
 
 	@Test
-	void uriHasHints() throws NoSuchMethodException {
-		assertThat(RuntimeHintsPredicates.reflection().onType(URI.class)).accepts(this.hints);
+	void uriHasHints() {
+		assertThat(reflection().onType(URI.class)).accepts(this.hints);
 	}
 
 }

spring-core/src/test/java/org/springframework/core/convert/converter/DefaultConversionServiceTests.java

@@ -22,12 +22,16 @@ import java.math.BigDecimal;
 import java.math.BigInteger;
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
+import java.sql.Time;
+import java.sql.Timestamp;
+import java.time.Instant;
 import java.time.ZoneId;
 import java.util.AbstractList;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Currency;
+import java.util.Date;
 import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.LinkedHashMap;
@@ -1066,6 +1070,88 @@ class DefaultConversionServiceTests {
 		}
 	}
 
+	@Test  // gh-35175
+	void convertDateToInstant() {
+		TypeDescriptor dateDescriptor = TypeDescriptor.valueOf(Date.class);
+		TypeDescriptor instantDescriptor = TypeDescriptor.valueOf(Instant.class);
+		Date date = new Date();
+
+		// Conversion performed by DateToInstantConverter.
+		assertThat(conversionService.convert(date, dateDescriptor, instantDescriptor))
+				.isEqualTo(date.toInstant());
+	}
+
+	@Test  // gh-35175
+	void convertSqlDateToInstant() {
+		TypeDescriptor sqlDateDescriptor = TypeDescriptor.valueOf(java.sql.Date.class);
+		TypeDescriptor instantDescriptor = TypeDescriptor.valueOf(Instant.class);
+		java.sql.Date sqlDate = new java.sql.Date(System.currentTimeMillis());
+
+		// DateToInstantConverter blindly invokes toInstant() on any java.util.Date
+		// subtype, which results in an UnsupportedOperationException since
+		// java.sql.Date does not have a time component. However, even if
+		// DateToInstantConverter were not registered, ObjectToObjectConverter
+		// would still attempt to invoke toInstant() on a java.sql.Date by convention,
+		// which results in the same UnsupportedOperationException.
+		assertThatExceptionOfType(ConversionFailedException.class)
+				.isThrownBy(() -> conversionService.convert(sqlDate, sqlDateDescriptor, instantDescriptor))
+				.withCauseExactlyInstanceOf(UnsupportedOperationException.class);
+	}
+
+	@Test  // gh-35175
+	void convertSqlTimeToInstant() {
+		TypeDescriptor timeDescriptor = TypeDescriptor.valueOf(Time.class);
+		TypeDescriptor instantDescriptor = TypeDescriptor.valueOf(Instant.class);
+		Time time = new Time(System.currentTimeMillis());
+
+		// DateToInstantConverter blindly invokes toInstant() on any java.util.Date
+		// subtype, which results in an UnsupportedOperationException since
+		// java.sql.Date does not have a time component. However, even if
+		// DateToInstantConverter were not registered, ObjectToObjectConverter
+		// would still attempt to invoke toInstant() on a java.sql.Date by convention,
+		// which results in the same UnsupportedOperationException.
+		assertThatExceptionOfType(ConversionFailedException.class)
+				.isThrownBy(() -> conversionService.convert(time, timeDescriptor, instantDescriptor))
+				.withCauseExactlyInstanceOf(UnsupportedOperationException.class);
+	}
+
+	@Test  // gh-35175
+	void convertSqlTimestampToInstant() {
+		TypeDescriptor timestampDescriptor = TypeDescriptor.valueOf(Timestamp.class);
+		TypeDescriptor instantDescriptor = TypeDescriptor.valueOf(Instant.class);
+		Timestamp timestamp = new Timestamp(System.currentTimeMillis());
+
+		// Conversion performed by DateToInstantConverter.
+		assertThat(conversionService.convert(timestamp, timestampDescriptor, instantDescriptor))
+				.isEqualTo(timestamp.toInstant());
+	}
+
+	@Test  // gh-35175
+	void convertInstantToDate() {
+		TypeDescriptor instantDescriptor = TypeDescriptor.valueOf(Instant.class);
+		TypeDescriptor dateDescriptor = TypeDescriptor.valueOf(Date.class);
+		Date date = new Date();
+		Instant instant = date.toInstant();
+
+		// Conversion performed by InstantToDateConverter.
+		assertThat(conversionService.convert(instant, instantDescriptor, dateDescriptor))
+				.isExactlyInstanceOf(Date.class)
+				.isEqualTo(date);
+	}
+
+	@Test
+	void convertInstantToSqlTimestamp() {
+		TypeDescriptor instantDescriptor = TypeDescriptor.valueOf(Instant.class);
+		TypeDescriptor timestampDescriptor = TypeDescriptor.valueOf(Timestamp.class);
+		Timestamp timestamp = new Timestamp(System.currentTimeMillis());
+		Instant instant = timestamp.toInstant();
+
+		// Conversion performed by ObjectToObjectConverter.
+		assertThat(conversionService.convert(instant, instantDescriptor, timestampDescriptor))
+				.isExactlyInstanceOf(Timestamp.class)
+				.isEqualTo(timestamp);
+	}
+
 
 	// test fields and helpers