Spring's default JPA persistence unit exposes package metadata as well (currently only supported with Hibernate)

Issue: SPR-10910

spring-orm-hibernate4/src/main/java/org/springframework/orm/jpa/vendor/SpringHibernateJpaPersistenceProvider.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2002-2014 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
+ *
+ *      http://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.orm.jpa.vendor;
+
+import java.util.Map;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.spi.PersistenceUnitInfo;
+
+import org.hibernate.cfg.Configuration;
+import org.hibernate.jpa.HibernatePersistenceProvider;
+import org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl;
+import org.hibernate.jpa.boot.internal.PersistenceUnitInfoDescriptor;
+import org.hibernate.service.ServiceRegistry;
+
+import org.springframework.orm.jpa.persistenceunit.SmartPersistenceUnitInfo;
+
+/**
+ * Spring-specific subclass of the standard {@link HibernatePersistenceProvider}
+ * from the {@code org.hibernate.jpa} package, adding support for
+ * {@link SmartPersistenceUnitInfo#getManagedPackages()}.
+ *
+ * <p>Compatible with Hibernate 4.3. {@link SpringHibernateEjbPersistenceProvider}
+ * is an alternative for compatibility with earlier Hibernate versions (3.6-4.2).
+ *
+ * @author Juergen Hoeller
+ * @since 4.1
+ */
+class SpringHibernateJpaPersistenceProvider extends HibernatePersistenceProvider {
+
+	@Override
+	@SuppressWarnings("rawtypes")
+	public EntityManagerFactory createContainerEntityManagerFactory(final PersistenceUnitInfo info, Map properties) {
+		return new EntityManagerFactoryBuilderImpl(new PersistenceUnitInfoDescriptor(info), properties) {
+			@Override
+			public Configuration buildHibernateConfiguration(ServiceRegistry serviceRegistry) {
+				Configuration configuration = super.buildHibernateConfiguration(serviceRegistry);
+				if (info instanceof SmartPersistenceUnitInfo) {
+					for (String managedPackage : ((SmartPersistenceUnitInfo) info).getManagedPackages()) {
+						configuration.addPackage(managedPackage);
+					}
+				}
+				return configuration;
+			}
+		}.build();
+	}
+
+}