From 46b27390617ddc0b2d3a62b95cd0f2755e55e072 Mon Sep 17 00:00:00 2001
From: Jan Schatteman <jschatte@redhat.com>
Date: Tue, 23 Jul 2024 22:16:16 +0200
Subject: [PATCH] HHH-18373 - Add test for binding null as value in Criteria
 API

Signed-off-by: Jan Schatteman <jschatte@redhat.com>
---
 .../AbstractMutationStrategyIdTest.java       | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/bulkid/AbstractMutationStrategyIdTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/bulkid/AbstractMutationStrategyIdTest.java
index c3b6c9265d..76e8f0b141 100644
--- a/hibernate-core/src/test/java/org/hibernate/orm/test/bulkid/AbstractMutationStrategyIdTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/bulkid/AbstractMutationStrategyIdTest.java
@@ -1,16 +1,22 @@
 package org.hibernate.orm.test.bulkid;
 
 import jakarta.persistence.Entity;
+import jakarta.persistence.EntityManager;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.Id;
 import jakarta.persistence.Inheritance;
 import jakarta.persistence.InheritanceType;
+import jakarta.persistence.criteria.CriteriaBuilder;
+import jakarta.persistence.criteria.CriteriaUpdate;
+import jakarta.persistence.criteria.Root;
 
 import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.cfg.Configuration;
+import org.hibernate.orm.test.jpa.compliance.CriteriaMutationQueryTableTest;
 import org.hibernate.query.sqm.mutation.spi.SqmMultiTableMutationStrategy;
 
 import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
+import org.hibernate.testing.orm.junit.Jira;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -90,6 +96,22 @@ public abstract class AbstractMutationStrategyIdTest extends BaseCoreFunctionalT
 		});
 	}
 
+	@Test
+	@Jira( value = "HHH-18373" )
+	public void testNullValueUpdateWithCriteria() {
+		doInHibernate( this::sessionFactory, session -> {
+			EntityManager entityManager = session.unwrap( EntityManager.class);
+
+			CriteriaBuilder cb = entityManager.getCriteriaBuilder();
+			CriteriaUpdate<Person> update = cb.createCriteriaUpdate( Person.class ).set( "name", null );
+			Root<Person> person = update.from( Person.class );
+			update.where( cb.equal( person.get( "employed" ), true ) );
+			int updateCount = entityManager.createQuery( update ).executeUpdate();
+
+			assertEquals( entityCount(), updateCount );
+		});
+	}
+
 	@Test
 	public void testDeleteFromPerson() {
 		doInHibernate( this::sessionFactory, session -> {