diff --git a/hibernate-core/src/test/java/org/hibernate/cache/internal/CacheKeyImplementationHashCodeTest.java b/hibernate-core/src/test/java/org/hibernate/cache/internal/CacheKeyImplementationHashCodeTest.java
new file mode 100644
index 0000000000..fa99fd3edc
--- /dev/null
+++ b/hibernate-core/src/test/java/org/hibernate/cache/internal/CacheKeyImplementationHashCodeTest.java
@@ -0,0 +1,79 @@
+/*
+ * 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.cache.internal;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+import org.hibernate.boot.Metadata;
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.SessionFactoryBuilder;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
+import org.hibernate.engine.spi.SessionFactoryImplementor;
+import org.hibernate.persister.entity.EntityPersister;
+import org.hibernate.service.spi.ServiceRegistryImplementor;
+
+import org.hibernate.testing.TestForIssue;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+
+/**
+ * @author Gail Badner
+ */
+public class CacheKeyImplementationHashCodeTest {
+
+	@Test
+	@TestForIssue( jiraKey = "HHH-12746")
+	public void test() {
+		ServiceRegistryImplementor serviceRegistry = (
+				ServiceRegistryImplementor) new StandardServiceRegistryBuilder().build();
+		MetadataSources ms = new MetadataSources( serviceRegistry );
+		ms.addAnnotatedClass( AnEntity.class ).addAnnotatedClass( AnotherEntity.class );
+		Metadata metadata = ms.buildMetadata();
+		final SessionFactoryBuilder sfb = metadata.getSessionFactoryBuilder();
+		SessionFactoryImplementor sessionFactory = (SessionFactoryImplementor) sfb.build();
+
+
+		CacheKeyImplementation anEntityCacheKey = createCacheKeyImplementation(
+				1, sessionFactory.getMetamodel().entityPersister( AnEntity.class ), sessionFactory
+		);
+		CacheKeyImplementation anotherEntityCacheKey = createCacheKeyImplementation(
+				1, sessionFactory.getMetamodel().entityPersister( AnotherEntity.class ), sessionFactory
+		);
+		assertFalse( anEntityCacheKey.equals( anotherEntityCacheKey ) );
+		assertNotEquals( anEntityCacheKey.hashCode(), anotherEntityCacheKey.hashCode() );
+	}
+
+	private CacheKeyImplementation createCacheKeyImplementation(
+			int id,
+			EntityPersister persister,
+			SessionFactoryImplementor sfi) {
+		return new CacheKeyImplementation( id, persister.getIdentifierType(), persister.getRootEntityName(), null, sfi );
+	}
+
+	@Entity(name = "AnEntity")
+	@Cache( usage = CacheConcurrencyStrategy.READ_WRITE)
+	public static class AnEntity {
+		@Id
+		@GeneratedValue
+		private int id;
+	}
+
+	@Entity(name = "AnotherEntity")
+	@Cache( usage = CacheConcurrencyStrategy.READ_WRITE)
+	public static class AnotherEntity {
+		@Id
+		@GeneratedValue
+		private int id;
+	}
+
+}