Add Hibernate runtime hints

This adds hints for the two No JtaPlatform candidates as well as for
the naming strategies.

Closes gh-35423

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.java

@@ -28,20 +28,29 @@ import javax.sql.DataSource;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.hibernate.boot.model.naming.CamelCaseToUnderscoresNamingStrategy;
 import org.hibernate.boot.model.naming.ImplicitNamingStrategy;
 import org.hibernate.boot.model.naming.PhysicalNamingStrategy;
 import org.hibernate.cfg.AvailableSettings;
 
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.aot.hint.TypeHint;
+import org.springframework.aot.hint.TypeReference;
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnSingleCandidate;
+import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration.HibernateRuntimeHints;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.boot.jdbc.SchemaManagementProvider;
 import org.springframework.boot.jdbc.metadata.CompositeDataSourcePoolMetadataProvider;
 import org.springframework.boot.jdbc.metadata.DataSourcePoolMetadata;
 import org.springframework.boot.jdbc.metadata.DataSourcePoolMetadataProvider;
+import org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy;
 import org.springframework.boot.orm.jpa.hibernate.SpringJtaPlatform;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.ImportRuntimeHints;
 import org.springframework.jndi.JndiLocatorDelegate;
 import org.springframework.orm.hibernate5.SpringBeanContainer;
 import org.springframework.orm.jpa.vendor.AbstractJpaVendorAdapter;
@@ -57,10 +66,12 @@ import org.springframework.util.ClassUtils;
  * @author Manuel Doninger
  * @author Andy Wilkinson
  * @author Stephane Nicoll
+ * @author Moritz Halbritter
  */
 @Configuration(proxyBeanMethods = false)
 @EnableConfigurationProperties(HibernateProperties.class)
 @ConditionalOnSingleCandidate(DataSource.class)
+@ImportRuntimeHints(HibernateRuntimeHints.class)
 class HibernateJpaConfiguration extends JpaBaseConfiguration {
 
 	private static final Log logger = LogFactory.getLog(HibernateJpaConfiguration.class);
@@ -237,4 +248,23 @@ class HibernateJpaConfiguration extends JpaBaseConfiguration {
 
 	}
 
+	static class HibernateRuntimeHints implements RuntimeHintsRegistrar {
+
+		@Override
+		public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
+			for (String clazz : NO_JTA_PLATFORM_CLASSES) {
+				hints.reflection()
+					.registerType(TypeReference.of(clazz),
+							TypeHint.builtWith(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS));
+			}
+			hints.reflection()
+				.registerType(SpringImplicitNamingStrategy.class,
+						TypeHint.builtWith(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS));
+			hints.reflection()
+				.registerType(CamelCaseToUnderscoresNamingStrategy.class,
+						TypeHint.builtWith(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS));
+		}
+
+	}
+
 }

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfigurationTests.java

@@ -48,6 +48,10 @@ import org.hibernate.internal.SessionFactoryImpl;
 import org.hibernate.jpa.HibernatePersistenceProvider;
 import org.junit.jupiter.api.Test;
 
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.TypeReference;
+import org.springframework.aot.hint.predicate.RuntimeHintsPredicates;
 import org.springframework.beans.factory.BeanCreationException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
@@ -57,6 +61,7 @@ import org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerA
 import org.springframework.boot.autoconfigure.jdbc.XADataSourceAutoConfiguration;
 import org.springframework.boot.autoconfigure.liquibase.LiquibaseAutoConfiguration;
 import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfigurationTests.JpaUsingApplicationListenerConfiguration.EventCapturingApplicationListener;
+import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration.HibernateRuntimeHints;
 import org.springframework.boot.autoconfigure.orm.jpa.mapping.NonAnnotatedEntity;
 import org.springframework.boot.autoconfigure.orm.jpa.test.City;
 import org.springframework.boot.autoconfigure.transaction.jta.JtaAutoConfiguration;
@@ -91,6 +96,7 @@ import static org.mockito.Mockito.mock;
  * @author Kazuki Shimizu
  * @author Stephane Nicoll
  * @author Chris Bono
+ * @author Moritz Halbritter
  */
 class HibernateJpaAutoConfigurationTests extends AbstractJpaAutoConfigurationTests {
 
@@ -477,6 +483,30 @@ class HibernateJpaAutoConfigurationTests extends AbstractJpaAutoConfigurationTes
 			});
 	}
 
+	@Test
+	void registersHintsForJtaClasses() {
+		RuntimeHints hints = new RuntimeHints();
+		new HibernateRuntimeHints().registerHints(hints, getClass().getClassLoader());
+		for (String clazz : Arrays.asList("org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform",
+				"org.hibernate.service.jta.platform.internal.NoJtaPlatform")) {
+			assertThat(RuntimeHintsPredicates.reflection()
+				.onType(TypeReference.of(clazz))
+				.withMemberCategories(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS)).accepts(hints);
+		}
+	}
+
+	@Test
+	void registersHintsForNamingClasses() {
+		RuntimeHints hints = new RuntimeHints();
+		new HibernateRuntimeHints().registerHints(hints, getClass().getClassLoader());
+		for (Class<?> clazz : Arrays.asList(SpringImplicitNamingStrategy.class,
+				CamelCaseToUnderscoresNamingStrategy.class)) {
+			assertThat(RuntimeHintsPredicates.reflection()
+				.onType(clazz)
+				.withMemberCategories(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS)).accepts(hints);
+		}
+	}
+
 	@Configuration(proxyBeanMethods = false)
 	@TestAutoConfigurationPackage(City.class)
 	@DependsOnDatabaseInitialization