HHH-14290 Remove capability of loading classes by name from HCANN

hibernate-core/src/main/java/org/hibernate/boot/internal/BootstrapContextImpl.java

@@ -13,11 +13,8 @@ import java.util.HashMap;
 import java.util.Map;
 
 import org.hibernate.AssertionFailure;
-import org.hibernate.annotations.common.reflection.ClassLoaderDelegate;
-import org.hibernate.annotations.common.reflection.ClassLoadingException;
 import org.hibernate.annotations.common.reflection.ReflectionManager;
 import org.hibernate.annotations.common.reflection.java.JavaReflectionManager;
-import org.hibernate.annotations.common.util.StandardClassLoaderDelegateImpl;
 import org.hibernate.boot.AttributeConverterInfo;
 import org.hibernate.boot.CacheRegionDefinition;
 import org.hibernate.boot.archive.scan.internal.StandardScanOptions;
@@ -313,32 +310,7 @@ public class BootstrapContextImpl implements BootstrapContext {
 	private JavaReflectionManager generateHcannReflectionManager() {
 		final JavaReflectionManager reflectionManager = new JavaReflectionManager();
 		reflectionManager.setMetadataProvider( new JPAMetadataProvider( this ) );
-		reflectionManager.injectClassLoaderDelegate( generateHcannClassLoaderDelegate() );
 		return reflectionManager;
 	}
 
-	private ClassLoaderDelegate generateHcannClassLoaderDelegate() {
-		//	class loading here needs to be drastically different for 7.0
-		//		but luckily 7.0 will do away with HCANN use and be easier to
-		//		implement this.
-		//
-		// todo (6.0) : *if possible* make similar change in 6.0
-		// 		possibly using the JPA temp class loader or create our own "throw awy" ClassLoader;
-		//		the trouble there is that we eventually need to load the Class into the real
-		//		ClassLoader prior to use
-
-		final ClassLoaderService classLoaderService = getServiceRegistry().getService( ClassLoaderService.class );
-
-		return new ClassLoaderDelegate() {
-			@Override
-			public <T> Class<T> classForName(String className) throws ClassLoadingException {
-				try {
-					return classLoaderService.classForName( className );
-				}
-				catch (org.hibernate.boot.registry.classloading.spi.ClassLoadingException e) {
-					return StandardClassLoaderDelegateImpl.INSTANCE.classForName( className );
-				}
-			}
-		};
-	}
 }

hibernate-core/src/main/java/org/hibernate/boot/model/source/internal/annotations/AnnotationMetadataSourceProcessorImpl.java

@@ -17,8 +17,6 @@ import javax.persistence.Embeddable;
 import javax.persistence.Entity;
 import javax.persistence.MappedSuperclass;
 
-import org.hibernate.AnnotationException;
-import org.hibernate.annotations.common.reflection.ClassLoadingException;
 import org.hibernate.annotations.common.reflection.MetadataProviderInjector;
 import org.hibernate.annotations.common.reflection.ReflectionManager;
 import org.hibernate.annotations.common.reflection.XClass;
@@ -59,6 +57,7 @@ public class AnnotationMetadataSourceProcessorImpl implements MetadataSourceProc
 	private final LinkedHashSet<String> annotatedPackages = new LinkedHashSet<String>();
 
 	private final List<XClass> xClasses = new ArrayList<XClass>();
+	private final ClassLoaderService classLoaderService;
 
 	public AnnotationMetadataSourceProcessorImpl(
 			ManagedResources managedResources,
@@ -74,6 +73,7 @@ public class AnnotationMetadataSourceProcessorImpl implements MetadataSourceProc
 		}
 
 		final AttributeConverterManager attributeConverterManager = new AttributeConverterManager( rootMetadataBuildingContext );
+		this.classLoaderService = rootMetadataBuildingContext.getBuildingOptions().getServiceRegistry().getService( ClassLoaderService.class );
 
 		if ( rootMetadataBuildingContext.getBuildingOptions().isXmlMappingEnabled() ) {
 
@@ -97,25 +97,24 @@ public class AnnotationMetadataSourceProcessorImpl implements MetadataSourceProc
 
 					final List<String> classNames = jpaMetadataProvider.getXMLContext().addDocument( dom4jDocument );
 					for ( String className : classNames ) {
-						xClasses.add( toXClass( className, reflectionManager ) );
+						xClasses.add( toXClass( className, reflectionManager, classLoaderService ) );
 					}
 				}
 				jpaMetadataProvider.getXMLContext().applyDiscoveredAttributeConverters( attributeConverterManager );
 			// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 		}
 
-		final ClassLoaderService cls = rootMetadataBuildingContext.getBuildingOptions().getServiceRegistry().getService( ClassLoaderService.class );
 		for ( String className : managedResources.getAnnotatedClassNames() ) {
-			final Class annotatedClass = cls.classForName( className );
+			final Class annotatedClass = classLoaderService.classForName( className );
-			categorizeAnnotatedClass( annotatedClass, attributeConverterManager );
+			categorizeAnnotatedClass( annotatedClass, attributeConverterManager, classLoaderService );
 		}
 
 		for ( Class annotatedClass : managedResources.getAnnotatedClassReferences() ) {
-			categorizeAnnotatedClass( annotatedClass, attributeConverterManager );
+			categorizeAnnotatedClass( annotatedClass, attributeConverterManager, classLoaderService );
 		}
 	}
 
-	private void categorizeAnnotatedClass(Class annotatedClass, AttributeConverterManager attributeConverterManager) {
+	private void categorizeAnnotatedClass(Class annotatedClass, AttributeConverterManager attributeConverterManager, ClassLoaderService cls) {
 		final XClass xClass = reflectionManager.toXClass( annotatedClass );
 		// categorize it, based on assumption it does not fall into multiple categories
 		if ( xClass.isAnnotationPresent( Converter.class ) ) {
@@ -135,13 +134,8 @@ public class AnnotationMetadataSourceProcessorImpl implements MetadataSourceProc
 	}
 
 	@SuppressWarnings("deprecation")
-	private XClass toXClass(String className, ReflectionManager reflectionManager) {
+	private XClass toXClass(String className, ReflectionManager reflectionManager, ClassLoaderService cls) {
-		try {
+		return reflectionManager.toXClass( cls.classForName( className ) );
-			return reflectionManager.classForName( className );
-		}
-		catch ( ClassLoadingException e ) {
-			throw new AnnotationException( "Unable to load class defined in XML: " + className, e );
-		}
 	}
 
 //	private Document toDom4jDocument(MappingBinder.DelayedOrmXmlData delayedOrmXmlData) {
@@ -192,7 +186,7 @@ public class AnnotationMetadataSourceProcessorImpl implements MetadataSourceProc
 
 		AnnotationBinder.bindDefaults( rootMetadataBuildingContext );
 		for ( String annotatedPackage : annotatedPackages ) {
-			AnnotationBinder.bindPackage( annotatedPackage, rootMetadataBuildingContext );
+			AnnotationBinder.bindPackage( classLoaderService, annotatedPackage, rootMetadataBuildingContext );
 		}
 	}
 
@@ -303,7 +297,7 @@ public class AnnotationMetadataSourceProcessorImpl implements MetadataSourceProc
 	@Override
 	public void postProcessEntityHierarchies() {
 		for ( String annotatedPackage : annotatedPackages ) {
-			AnnotationBinder.bindFetchProfilesForPackage( annotatedPackage, rootMetadataBuildingContext );
+			AnnotationBinder.bindFetchProfilesForPackage( classLoaderService, annotatedPackage, rootMetadataBuildingContext );
 		}
 	}
 

hibernate-core/src/main/java/org/hibernate/boot/registry/classloading/internal/ClassLoaderServiceImpl.java

@@ -261,6 +261,22 @@ public class ClassLoaderServiceImpl implements ClassLoaderService {
 		);
 	}
 
+	@Override
+	public Package packageForNameOrNull(String packageName) {
+		try {
+			Class<?> aClass = Class.forName( packageName + ".package-info", true, getAggregatedClassLoader() );
+			return aClass == null ? null : aClass.getPackage();
+		}
+		catch (ClassNotFoundException e) {
+			log.packageNotFound( packageName );
+			return null;
+		}
+		catch (LinkageError e) {
+			log.warn( "LinkageError while attempting to load Package named " + packageName, e );
+			return null;
+		}
+	}
+
 	@Override
 	public <T> T workWithClassLoader(Work<T> work) {
 		return work.doWork( getAggregatedClassLoader() );

hibernate-core/src/main/java/org/hibernate/boot/registry/classloading/spi/ClassLoaderService.java

@@ -75,6 +75,21 @@ public interface ClassLoaderService extends Service, Stoppable {
 
 	<T> T generateProxy(InvocationHandler handler, Class... interfaces);
 
+	/**
+	 * Loading a Package from the classloader. In case it's not found or an
+	 * internal error (such as @see {@link LinkageError} occurs, we
+	 * return null rather than throwing an exception.
+	 * This is significantly different than loading a Class, as in all
+	 * currently known usages, being unable to load the Package will
+	 * only result in ignoring annotations on it - which is totally
+	 * fine when the object doesn't exist.
+	 * In case of other errors, implementations are expected to log
+	 * a warning but it's still not treated as a fatal error.
+	 * @param packageName
+	 * @return the matching Package, or null.
+	 */
+	Package packageForNameOrNull(String packageName);
+
 	interface Work<T> {
 		T doWork(ClassLoader classLoader);
 	}

hibernate-core/src/main/java/org/hibernate/cfg/AnnotationBinder.java

@@ -123,7 +123,7 @@ import org.hibernate.annotations.Tuplizers;
 import org.hibernate.annotations.TypeDef;
 import org.hibernate.annotations.TypeDefs;
 import org.hibernate.annotations.Where;
-import org.hibernate.annotations.common.reflection.ClassLoadingException;
+import org.hibernate.annotations.common.reflection.ReflectionManager;
 import org.hibernate.annotations.common.reflection.XAnnotatedElement;
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XMethod;
@@ -132,6 +132,7 @@ import org.hibernate.annotations.common.reflection.XProperty;
 import org.hibernate.boot.model.IdGeneratorStrategyInterpreter;
 import org.hibernate.boot.model.IdentifierGeneratorDefinition;
 import org.hibernate.boot.model.TypeDefinition;
+import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
 import org.hibernate.boot.spi.InFlightMetadataCollector;
 import org.hibernate.boot.spi.InFlightMetadataCollector.EntityTableXref;
 import org.hibernate.boot.spi.MetadataBuildingContext;
@@ -146,8 +147,6 @@ import org.hibernate.cfg.annotations.QueryBinder;
 import org.hibernate.cfg.annotations.SimpleValueBinder;
 import org.hibernate.cfg.annotations.TableBinder;
 import org.hibernate.engine.OptimisticLockStyle;
-import org.hibernate.engine.config.spi.ConfigurationService;
-import org.hibernate.engine.config.spi.StandardConverters;
 import org.hibernate.engine.spi.FilterDefinition;
 import org.hibernate.id.PersistentIdentifierGenerator;
 import org.hibernate.internal.CoreMessageLogger;
@@ -306,19 +305,12 @@ public final class AnnotationBinder {
 		}
 	}
 
-	public static void bindPackage(String packageName, MetadataBuildingContext context) {
+	public static void bindPackage(ClassLoaderService cls, String packageName, MetadataBuildingContext context) {
-		XPackage pckg;
+		final Package packaze = cls.packageForNameOrNull( packageName );
-		try {
+		if ( packaze == null ) {
-			pckg = context.getBootstrapContext().getReflectionManager().packageForName( packageName );
-		}
-		catch (ClassLoadingException e) {
-			LOG.packageNotFound( packageName );
-			return;
-		}
-		catch ( ClassNotFoundException cnf ) {
-			LOG.packageNotFound( packageName );
 			return;
 		}
+		final XPackage pckg = context.getBootstrapContext().getReflectionManager().toXPackage( packaze );
 
 		if ( pckg.isAnnotationPresent( SequenceGenerator.class ) ) {
 			SequenceGenerator ann = pckg.getAnnotation( SequenceGenerator.class );
@@ -1423,20 +1415,13 @@ public final class AnnotationBinder {
 		bindFetchProfiles( clazzToProcess, context );
 	}
 
-	public static void bindFetchProfilesForPackage(String packageName, MetadataBuildingContext context) {
+	public static void bindFetchProfilesForPackage(ClassLoaderService cls, String packageName, MetadataBuildingContext context) {
-		XPackage pckg;
+		final Package packaze = cls.packageForNameOrNull( packageName );
-		try {
+		if ( packaze == null ) {
-			pckg = context.getBootstrapContext().getReflectionManager().packageForName( packageName );
-		}
-		catch (ClassLoadingException e) {
-			LOG.packageNotFound( packageName );
 			return;
 		}
-		catch ( ClassNotFoundException cnf ) {
+		final ReflectionManager reflectionManager = context.getBootstrapContext().getReflectionManager();
-			LOG.packageNotFound( packageName );
+		final XPackage pckg = reflectionManager.toXPackage( packaze );
-			return;
-		}
-
 		bindFetchProfiles( pckg, context );
 	}
 

hibernate-core/src/main/java/org/hibernate/cfg/BinderHelper.java

@@ -31,7 +31,6 @@ import org.hibernate.annotations.AnyMetaDef;
 import org.hibernate.annotations.AnyMetaDefs;
 import org.hibernate.annotations.MetaValue;
 import org.hibernate.annotations.SqlFragmentAlias;
-import org.hibernate.annotations.common.reflection.ClassLoadingException;
 import org.hibernate.annotations.common.reflection.XAnnotatedElement;
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XPackage;
@@ -1097,14 +1096,8 @@ public class BinderHelper {
 			PropertyHolder propertyHolder,
 			String propertyName,
 			MetadataBuildingContext buildingContext) {
-		final XClass persistentXClass;
+		final XClass persistentXClass = buildingContext.getBootstrapContext().getReflectionManager()
-		try {
+					.toXClass( propertyHolder.getPersistentClass().getMappedClass() );
-			persistentXClass = buildingContext.getBootstrapContext().getReflectionManager()
-					.classForName( propertyHolder.getPersistentClass().getClassName() );
-		}
-		catch ( ClassLoadingException e ) {
-			throw new AssertionFailure( "PersistentClass name cannot be converted into a Class", e);
-		}
 		if ( propertyHolder.isInIdClass() ) {
 			PropertyData pd = buildingContext.getMetadataCollector().getPropertyAnnotatedWithIdAndToOne(
 					persistentXClass,

hibernate-core/src/main/java/org/hibernate/cfg/annotations/MapBinder.java

@@ -23,9 +23,9 @@ import org.hibernate.AnnotationException;
 import org.hibernate.AssertionFailure;
 import org.hibernate.FetchMode;
 import org.hibernate.MappingException;
-import org.hibernate.annotations.common.reflection.ClassLoadingException;
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XProperty;
+import org.hibernate.boot.spi.BootstrapContext;
 import org.hibernate.boot.spi.MetadataBuildingContext;
 import org.hibernate.cfg.AccessType;
 import org.hibernate.cfg.AnnotatedClassType;
@@ -217,19 +217,17 @@ public class MapBinder extends CollectionBinder {
 				//does not make sense for a map key element.setIgnoreNotFound( ignoreNotFound );
 			}
 			else {
-				XClass keyXClass;
+				final XClass keyXClass;
 				AnnotatedClassType classType;
 				if ( BinderHelper.PRIMITIVE_NAMES.contains( mapKeyType ) ) {
 					classType = AnnotatedClassType.NONE;
 					keyXClass = null;
 				}
 				else {
-					try {
+					final BootstrapContext bootstrapContext = buildingContext.getBootstrapContext();
-						keyXClass = buildingContext.getBootstrapContext().getReflectionManager().classForName( mapKeyType );
+					final Class<Object> mapKeyClass = bootstrapContext.getClassLoaderAccess().classForName( mapKeyType );
-					}
+					keyXClass = bootstrapContext.getReflectionManager().toXClass( mapKeyClass );
-					catch (ClassLoadingException e) {
+
-						throw new AnnotationException( "Unable to find class: " + mapKeyType, e );
-					}
 					classType = buildingContext.getMetadataCollector().getClassType( keyXClass );
 					// force in case of attribute override naming the key
 					if ( isEmbedded || mappingDefinedAttributeOverrideOnMapKey( property ) ) {

hibernate-core/src/main/java/org/hibernate/cfg/annotations/SimpleValueBinder.java

@@ -26,7 +26,6 @@ import org.hibernate.annotations.MapKeyType;
 import org.hibernate.annotations.Nationalized;
 import org.hibernate.annotations.Parameter;
 import org.hibernate.annotations.Type;
-import org.hibernate.annotations.common.reflection.ClassLoadingException;
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XProperty;
 import org.hibernate.boot.model.TypeDefinition;
@@ -534,7 +533,6 @@ public class SimpleValueBinder {
 
 		if ( simpleValue.getTypeName() != null && simpleValue.getTypeName().length() > 0
 				&& simpleValue.getMetadata().getTypeResolver().basic( simpleValue.getTypeName() ) == null ) {
-			try {
 			Class typeClass = buildingContext.getBootstrapContext().getClassLoaderAccess().classForName( simpleValue.getTypeName() );
 
 			if ( typeClass != null && DynamicParameterizedType.class.isAssignableFrom( typeClass ) ) {
@@ -553,10 +551,6 @@ public class SimpleValueBinder {
 				simpleValue.setTypeParameters( parameters );
 			}
 		}
-			catch (ClassLoadingException e) {
-				throw new MappingException( "Could not determine type for: " + simpleValue.getTypeName(), e );
-			}
-		}
 
 	}
 

hibernate-core/src/main/java/org/hibernate/event/spi/EventEngine.java

@@ -61,7 +61,7 @@ public class EventEngine {
 				continue;
 			}
 
-			this.callbackBuilder.buildCallbacksForEntity( persistentClass.getClassName(), callbackRegistry );
+			this.callbackBuilder.buildCallbacksForEntity( persistentClass.getMappedClass(), callbackRegistry );
 
 			for ( Iterator<Property> propertyIterator = persistentClass.getDeclaredPropertyIterator(); propertyIterator.hasNext(); ) {
 				final Property property = propertyIterator.next();
@@ -69,7 +69,7 @@ public class EventEngine {
 				if ( property.getType().isComponentType() ) {
 					this.callbackBuilder.buildCallbacksForEmbeddable(
 							property,
-							persistentClass.getClassName(),
+							persistentClass.getMappedClass(),
 							callbackRegistry
 					);
 				}

hibernate-core/src/main/java/org/hibernate/jpa/event/internal/CallbackBuilderLegacyImpl.java

@@ -20,7 +20,6 @@ import javax.persistence.MappedSuperclass;
 import javax.persistence.PersistenceException;
 
 import org.hibernate.MappingException;
-import org.hibernate.annotations.common.reflection.ClassLoadingException;
 import org.hibernate.annotations.common.reflection.ReflectionManager;
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XMethod;
@@ -52,10 +51,7 @@ final class CallbackBuilderLegacyImpl implements CallbackBuilder {
 	}
 
 	@Override
-	public void buildCallbacksForEntity(String entityClassName, CallbackRegistrar callbackRegistrar) {
+	public void buildCallbacksForEntity(Class entityClass, CallbackRegistrar callbackRegistrar) {
-		try {
-			final XClass entityXClass = reflectionManager.classForName( entityClassName );
-			final Class entityClass = reflectionManager.toClass( entityXClass );
 		for ( CallbackType callbackType : CallbackType.values() ) {
 			if ( callbackRegistrar.hasRegisteredCallbacks( entityClass, callbackType ) ) {
 				// this most likely means we have a class mapped multiple times using the hbm.xml
@@ -65,28 +61,20 @@ final class CallbackBuilderLegacyImpl implements CallbackBuilder {
 							"CallbackRegistry reported that Class [%s] already had %s callbacks registered; " +
 									"assuming this means the class was mapped twice " +
 									"(using hbm.xml entity-name support) - skipping subsequent registrations",
-								entityClassName,
+							entityClass.getName(),
 							callbackType.getCallbackAnnotation().getSimpleName()
 					);
 				}
 				continue;
 			}
-				final Callback[] callbacks = resolveEntityCallbacks( entityXClass, callbackType, reflectionManager );
+			final Callback[] callbacks = resolveEntityCallbacks( entityClass, callbackType, reflectionManager );
 			callbackRegistrar.registerCallbacks( entityClass, callbacks );
 		}
 	}
-		catch (ClassLoadingException e) {
-			throw new MappingException( "entity class not found: " + entityClassName, e );
-		}
-	}
 
 	@Override
 	public void buildCallbacksForEmbeddable(
-			Property embeddableProperty, String entityClassName, CallbackRegistrar callbackRegistrar) {
+			Property embeddableProperty, Class entityClass, CallbackRegistrar callbackRegistrar) {
-		try {
-			final XClass entityXClass = reflectionManager.classForName( entityClassName );
-			final Class entityClass = reflectionManager.toClass( entityXClass );
-
 		for ( CallbackType callbackType : CallbackType.values() ) {
 			final Callback[] callbacks = resolveEmbeddableCallbacks(
 					entityClass,
@@ -97,10 +85,6 @@ final class CallbackBuilderLegacyImpl implements CallbackBuilder {
 			callbackRegistrar.registerCallbacks( entityClass, callbacks );
 		}
 	}
-		catch (ClassLoadingException e) {
-			throw new MappingException( "Class not found: ", e );
-		}
-	}
 
 	@Override
 	public void release() {
@@ -108,11 +92,11 @@ final class CallbackBuilderLegacyImpl implements CallbackBuilder {
 	}
 
 	@SuppressWarnings({"unchecked", "WeakerAccess"})
-	public Callback[] resolveEntityCallbacks(XClass beanClass, CallbackType callbackType, ReflectionManager reflectionManager) {
+	public Callback[] resolveEntityCallbacks(Class entityClass, CallbackType callbackType, ReflectionManager reflectionManager) {
 		List<Callback> callbacks = new ArrayList<>();
 		List<String> callbacksMethodNames = new ArrayList<>();
 		List<Class> orderedListeners = new ArrayList<>();
-		XClass currentClazz = beanClass;
+		XClass currentClazz = reflectionManager.toXClass( entityClass );
 		boolean stopListeners = false;
 		boolean stopDefaultListeners = false;
 		do {
@@ -140,7 +124,7 @@ final class CallbackBuilderLegacyImpl implements CallbackBuilder {
 										"Adding %s as %s callback for entity %s",
 										methodName,
 										callbackType.getCallbackAnnotation().getSimpleName(),
-										beanClass.getName()
+										entityClass.getName()
 								);
 							}
 							callbacks.add( 0, callback ); //superclass first
@@ -149,7 +133,7 @@ final class CallbackBuilderLegacyImpl implements CallbackBuilder {
 						else {
 							throw new PersistenceException(
 									"You can only annotate one callback method with "
-											+ callbackType.getCallbackAnnotation().getName() + " in bean class: " + beanClass.getName()
+											+ callbackType.getCallbackAnnotation().getName() + " in bean class: " + entityClass.getName()
 							);
 						}
 					}
@@ -216,7 +200,7 @@ final class CallbackBuilderLegacyImpl implements CallbackBuilder {
 											"Adding %s as %s callback for entity %s",
 											methodName,
 											callbackType.getCallbackAnnotation().getSimpleName(),
-											beanClass.getName()
+											entityClass.getName()
 										);
 								}
 								callbacks.add( 0, callback ); // listeners first
@@ -225,7 +209,7 @@ final class CallbackBuilderLegacyImpl implements CallbackBuilder {
 								throw new PersistenceException(
 										"You can only annotate one callback method with "
 												+ callbackType.getCallbackAnnotation().getName()
-												+ " in bean class: " + beanClass.getName()
+												+ " in bean class: " + entityClass.getName()
 												+ " and callback listener: " + listener.getName()
 								);
 							}
@@ -240,8 +224,8 @@ final class CallbackBuilderLegacyImpl implements CallbackBuilder {
 	@SuppressWarnings({"unchecked", "WeakerAccess"})
 	public Callback[] resolveEmbeddableCallbacks(Class entityClass, Property embeddableProperty, CallbackType callbackType, ReflectionManager reflectionManager) {
 
-		final String embeddableClassName = embeddableProperty.getType().getReturnedClass().getName();
+		final Class embeddableClass = embeddableProperty.getType().getReturnedClass();
-		final XClass embeddableXClass = reflectionManager.classForName( embeddableClassName );
+		final XClass embeddableXClass = reflectionManager.toXClass( embeddableClass );
 		final Getter embeddableGetter = embeddableProperty.getGetter( entityClass );
 		final List<Callback> callbacks = new ArrayList<>();
 		final List<String> callbacksMethodNames = new ArrayList<>();

hibernate-core/src/main/java/org/hibernate/jpa/event/internal/EmptyCallbackBuilder.java

@@ -12,12 +12,12 @@ import org.hibernate.mapping.Property;
 final class EmptyCallbackBuilder implements CallbackBuilder {
 
 	@Override
-	public void buildCallbacksForEntity(String entityClassName, CallbackRegistrar callbackRegistrar) {
+	public void buildCallbacksForEntity(Class entityClass, CallbackRegistrar callbackRegistrar) {
 		//no-op
 	}
 
 	@Override
-	public void buildCallbacksForEmbeddable(Property embeddableProperty, String entityClassName, CallbackRegistrar callbackRegistrar) {
+	public void buildCallbacksForEmbeddable(Property embeddableProperty, Class entityClass, CallbackRegistrar callbackRegistrar) {
 		//no-op
 	}
 

hibernate-core/src/main/java/org/hibernate/jpa/event/spi/CallbackBuilder.java

@@ -28,11 +28,11 @@ public interface CallbackBuilder {
 		void registerCallbacks(Class entityClass, Callback[] callbacks);
 	}
 
-	void buildCallbacksForEntity(String entityClassName, CallbackRegistrar callbackRegistrar);
+	void buildCallbacksForEntity(Class entityClass, CallbackRegistrar callbackRegistrar);
 
 	void buildCallbacksForEmbeddable(
 			Property embeddableProperty,
-			String entityClassName,
+			Class entityClass,
 			CallbackRegistrar callbackRegistrar);
 
 	void release();

hibernate-envers/src/main/java/org/hibernate/envers/configuration/internal/RevisionInfoConfiguration.java

@@ -11,7 +11,6 @@ import java.util.Set;
 import javax.persistence.Column;
 
 import org.hibernate.MappingException;
-import org.hibernate.annotations.common.reflection.ClassLoadingException;
 import org.hibernate.annotations.common.reflection.ReflectionManager;
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XProperty;
@@ -310,14 +309,7 @@ public class RevisionInfoConfiguration {
 		for ( PersistentClass persistentClass : metadata.getEntityBindings() ) {
 			// Ensure we're in POJO, not dynamic model, mapping.
 			if (persistentClass.getClassName() != null) {
-				XClass clazz;
+				XClass clazz = reflectionManager.toXClass( persistentClass.getMappedClass() );
-				try {
-					clazz = reflectionManager.classForName( persistentClass.getClassName() );
-				}
-				catch (ClassLoadingException e) {
-					throw new MappingException( e );
-				}
-
 				final RevisionEntity revisionEntity = clazz.getAnnotation( RevisionEntity.class );
 				if ( revisionEntity != null ) {
 					if (revisionEntityFound) {

hibernate-envers/src/main/java/org/hibernate/envers/configuration/internal/metadata/CollectionMetadataGenerator.java

@@ -22,6 +22,7 @@ import javax.persistence.JoinColumn;
 import org.dom4j.Element;
 import org.hibernate.MappingException;
 import org.hibernate.annotations.common.reflection.ReflectionManager;
+import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
 import org.hibernate.envers.ModificationStore;
 import org.hibernate.envers.RelationTargetAuditMode;
 import org.hibernate.envers.configuration.internal.metadata.reader.AuditedPropertiesReader;
@@ -658,9 +659,12 @@ public final class CollectionMetadataGenerator {
 					.getMetadataBuildingOptions()
 					.getReflectionManager();
 
+			final ClassLoaderService classLoaderService = mainGenerator.getGlobalCfg()
+					.getEnversService()
+					.getClassLoaderService();
 			new ComponentAuditedPropertiesReader(
 					ModificationStore.FULL,
-					new AuditedPropertiesReader.ComponentPropertiesSource( reflectionManager, component ),
+					new AuditedPropertiesReader.ComponentPropertiesSource( classLoaderService, reflectionManager, component ),
 					auditData, mainGenerator.getGlobalCfg(), reflectionManager, ""
 			).read();
 

hibernate-envers/src/main/java/org/hibernate/envers/configuration/internal/metadata/reader/AnnotationsMetadataReader.java

@@ -7,7 +7,6 @@
 package org.hibernate.envers.configuration.internal.metadata.reader;
 
 import org.hibernate.MappingException;
-import org.hibernate.annotations.common.reflection.ClassLoadingException;
 import org.hibernate.annotations.common.reflection.ReflectionManager;
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.envers.AuditTable;
@@ -96,8 +95,7 @@ public final class AnnotationsMetadataReader {
 			return auditData;
 		}
 
-		try {
+		final XClass xclass = reflectionManager.toXClass( pc.getMappedClass() );
-			final XClass xclass = reflectionManager.classForName( pc.getClassName() );
 
 		final ModificationStore defaultStore = getDefaultAudited( xclass );
 		if ( defaultStore != null ) {
@@ -115,10 +113,6 @@ public final class AnnotationsMetadataReader {
 
 		addAuditTable( xclass );
 		addAuditSecondaryTables( xclass );
-		}
-		catch (ClassLoadingException e) {
-			throw new MappingException( e );
-		}
 
 		return auditData;
 	}

hibernate-envers/src/main/java/org/hibernate/envers/configuration/internal/metadata/reader/AuditedPropertiesReader.java

@@ -25,10 +25,11 @@ import javax.persistence.Version;
 
 import org.hibernate.HibernateException;
 import org.hibernate.MappingException;
-import org.hibernate.annotations.common.reflection.ClassLoadingException;
 import org.hibernate.annotations.common.reflection.ReflectionManager;
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XProperty;
+import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
+import org.hibernate.boot.registry.classloading.spi.ClassLoadingException;
 import org.hibernate.envers.AuditJoinTable;
 import org.hibernate.envers.AuditMappedBy;
 import org.hibernate.envers.AuditOverride;
@@ -432,8 +433,10 @@ public class AuditedPropertiesReader {
 			// Marking component properties as placed directly in class (not inside another component).
 			componentData.setBeanName( null );
 
+			final ClassLoaderService classLoaderService = globalCfg.getEnversService().getClassLoaderService();
+
 			final PersistentPropertiesSource componentPropertiesSource = new ComponentPropertiesSource(
-					reflectionManager,
+					classLoaderService, reflectionManager,
 					propertyValue
 			);
 			final AuditedPropertiesReader audPropReader = new AuditedPropertiesReader(
@@ -459,7 +462,10 @@ public class AuditedPropertiesReader {
 			componentPropertiesSource = new DynamicComponentSource( reflectionManager, propertyValue, property );
 		}
 		else {
-			componentPropertiesSource = new ComponentPropertiesSource( reflectionManager, propertyValue );
+			final ClassLoaderService classLoaderService = this.globalCfg.getEnversService().getClassLoaderService();
+			componentPropertiesSource = new ComponentPropertiesSource(
+					classLoaderService,
+					reflectionManager, propertyValue );
 		}
 
 		final ComponentAuditedPropertiesReader audPropReader = new ComponentAuditedPropertiesReader(
@@ -786,14 +792,17 @@ public class AuditedPropertiesReader {
 			this.component = component;
 		}
 
-		public ComponentPropertiesSource(ReflectionManager reflectionManager, Component component) {
+		public ComponentPropertiesSource(
+				ClassLoaderService classLoaderService,
+				ReflectionManager reflectionManager,
+				Component component) {
 			try {
-				this.xclass = reflectionManager.classForName( component.getComponentClassName() );
+				Class<Object> objectClass = classLoaderService.classForName( component.getComponentClassName() );
+				this.xclass = reflectionManager.toXClass( objectClass );
 			}
 			catch ( ClassLoadingException e ) {
 				throw new MappingException( e );
 			}
-
 			this.component = component;
 		}