HHH-10659 - Natural Id 2nd level Cache not working when Identity is database generated

(cherry picked from commit 9498b52566)

hibernate-core/src/main/java/org/hibernate/action/internal/AbstractEntityInsertAction.java

@@ -194,7 +194,7 @@ public abstract class AbstractEntityInsertAction extends EntityAction {
 		// after save, we need to manage the shared cache entries
 		getSession().getPersistenceContext().getNaturalIdHelper().manageSharedNaturalIdCrossReference(
 				getPersister(),
-				getId(),
+				generatedId,
 				state,
 				null,
 				CachedNaturalIdValueSource.INSERT

hibernate-core/src/test/java/org/hibernate/test/naturalid/immutable/IdentifierGeneratorWithNaturalIdCacheTest.java

@@ -0,0 +1,103 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.test.naturalid.immutable;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+import org.hibernate.annotations.NaturalId;
+import org.hibernate.annotations.NaturalIdCache;
+import org.hibernate.cfg.AvailableSettings;
+import org.hibernate.cfg.Configuration;
+import org.hibernate.cfg.Environment;
+
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.cache.CachingRegionFactory;
+import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
+import org.junit.Test;
+
+import static org.hibernate.testing.transaction.TransactionUtil.doInHibernate;
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author Alex Burgel
+ */
+public class IdentifierGeneratorWithNaturalIdCacheTest
+		extends BaseCoreFunctionalTestCase {
+
+	@Override
+	protected Class<?>[] getAnnotatedClasses() {
+		return new Class[] {
+				Person.class
+		};
+	}
+
+	public void configure(Configuration cfg) {
+		cfg.setProperty(
+				AvailableSettings.CACHE_REGION_FACTORY,
+				CachingRegionFactory.class.getName()
+		);
+		cfg.setProperty( Environment.GENERATE_STATISTICS, "true" );
+	}
+
+	@Test
+	@TestForIssue(jiraKey = "HHH-10659")
+	public void testNaturalIdCacheEntry() {
+		doInHibernate( this::sessionFactory, session -> {
+			Person person = new Person();
+			person.setName( "John Doe" );
+			session.persist( person );
+		} );
+		doInHibernate( this::sessionFactory, session -> {
+			assertEquals(0, sessionFactory().getStatistics().getSecondLevelCacheHitCount());
+			assertEquals(0, sessionFactory().getStatistics().getNaturalIdCacheHitCount());
+			Person person = session.bySimpleNaturalId( Person.class )
+					.load( "John Doe" );
+			assertEquals(0, sessionFactory().getStatistics().getSecondLevelCacheHitCount());
+			assertEquals(1, sessionFactory().getStatistics().getNaturalIdCacheHitCount());
+		} );
+		doInHibernate( this::sessionFactory, session -> {
+			Person person = session.bySimpleNaturalId( Person.class )
+					.load( "John Doe" );
+			assertEquals(1, sessionFactory().getStatistics().getSecondLevelCacheHitCount());
+			assertEquals(2, sessionFactory().getStatistics().getNaturalIdCacheHitCount());
+		} );
+	}
+
+	@Entity(name = "Person")
+	@NaturalIdCache
+	@Cache( usage = CacheConcurrencyStrategy.READ_ONLY )
+	public static class Person {
+
+		@Id
+		@GeneratedValue(strategy = GenerationType.IDENTITY)
+		private Long id;
+
+		@NaturalId
+		private String name;
+
+		public Long getId() {
+			return id;
+		}
+
+		public void setId(Long id) {
+			this.id = id;
+		}
+
+		public String getName() {
+			return name;
+		}
+
+		public void setName(String name) {
+			this.name = name;
+		}
+	}
+}