Introduce hints for finding hints by conventions

Closes gh-30491

Author: sdeleuze

spring-beans/spring-beans.gradle

@@ -12,6 +12,7 @@ dependencies {
 	testImplementation(testFixtures(project(":spring-core")))
 	testImplementation(project(":spring-core-test"))
 	testImplementation("jakarta.annotation:jakarta.annotation-api")
+	testImplementation(project(":spring-web"))
 	testFixturesApi("org.junit.jupiter:junit-jupiter-api")
 	testFixturesImplementation("org.assertj:assertj-core")
 }

spring-beans/src/main/java/org/springframework/beans/BeanUtilsRuntimeHints.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2002-2023 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.beans;
+
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.lang.Nullable;
+
+/**
+ * {@link RuntimeHintsRegistrar} to register hints for popular conventions in
+ * {@link BeanUtils#findEditorByConvention(Class)}.
+ *
+ * @author Sebastien Deleuze
+ * @since 6.0.10
+ */
+class BeanUtilsRuntimeHints implements RuntimeHintsRegistrar {
+
+	@Override
+	public void registerHints(RuntimeHints hints, @Nullable ClassLoader classLoader) {
+		hints.reflection().registerTypeIfPresent(classLoader, "org.springframework.http.MediaTypeEditor",
+				MemberCategory.INVOKE_DECLARED_CONSTRUCTORS);
+	}
+
+}

spring-beans/src/main/resources/META-INF/spring/aot.factories

@@ -1,5 +1,6 @@
 org.springframework.aot.hint.RuntimeHintsRegistrar=\
-org.springframework.beans.factory.annotation.JakartaAnnotationsRuntimeHints
+org.springframework.beans.factory.annotation.JakartaAnnotationsRuntimeHints,\
+org.springframework.beans.BeanUtilsRuntimeHints
 
 org.springframework.beans.factory.aot.BeanFactoryInitializationAotProcessor=\
 org.springframework.beans.factory.aot.BeanRegistrationsAotProcessor

spring-beans/src/test/java/org/springframework/beans/BeanUtilsRuntimeHintsTests.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2002-2023 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.beans;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.aot.hint.TypeReference;
+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;
+
+/**
+ * Tests for {@link BeanUtilsRuntimeHints}.
+ *
+ * @author Sebastien Deleuze
+ */
+class BeanUtilsRuntimeHintsTests {
+
+	private RuntimeHints hints;
+
+	@BeforeEach
+	void setup() {
+		this.hints = new RuntimeHints();
+		SpringFactoriesLoader.forResourceLocation("META-INF/spring/aot.factories")
+				.load(RuntimeHintsRegistrar.class).forEach(registrar -> registrar
+						.registerHints(this.hints, ClassUtils.getDefaultClassLoader()));
+	}
+
+	@Test
+	void mediaTypeEditorHasHints() {
+		assertThat(RuntimeHintsPredicates.reflection().onType(TypeReference.of("org.springframework.http.MediaTypeEditor"))
+				.withMemberCategories(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS)).accepts(this.hints);
+	}
+
+}