HHH-16803 Add test for issue

hibernate-core/src/test/java/org/hibernate/orm/test/jpa/criteria/nulliteral/EyeColor.java

@@ -0,0 +1,16 @@
+/*
+ * 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.orm.test.jpa.criteria.nulliteral;
+
+/**
+ * @author Marco Belladelli
+ */
+public enum EyeColor {
+	BROWN,
+	GREEN,
+	BLUE
+}

hibernate-core/src/test/java/org/hibernate/orm/test/jpa/criteria/nulliteral/NullLiteralExpression.java

@@ -6,14 +6,15 @@
  */
 package org.hibernate.orm.test.jpa.criteria.nulliteral;
 
-import jakarta.persistence.EntityManager;
+import org.hibernate.orm.test.jpa.BaseEntityManagerFunctionalTestCase;
+
+import org.hibernate.testing.orm.junit.Jira;
+import org.junit.Test;
+
 import jakarta.persistence.criteria.CriteriaBuilder;
 import jakarta.persistence.criteria.CriteriaUpdate;
 
-import org.hibernate.orm.test.jpa.BaseEntityManagerFunctionalTestCase;
+import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
-
-import org.hibernate.testing.TestForIssue;
-import org.junit.Test;
 
 /**
  * @author Andrea Boriero
@@ -22,33 +23,30 @@ public class NullLiteralExpression extends BaseEntityManagerFunctionalTestCase {
 
 	@Override
 	protected Class<?>[] getAnnotatedClasses() {
-		return new Class[] {Person.class, Subject.class};
+		return new Class[] { Person.class, Subject.class };
 	}
 
 	@Test
-	@TestForIssue( jiraKey = "HHH-11159")
+	@Jira( "https://hibernate.atlassian.net/browse/HHH-11159" )
 	public void testNullLiteralExpressionInCriteriaUpdate() {
-		EntityManager entityManager = getOrCreateEntityManager();
+		doInJPA( this::entityManagerFactory, entityManager -> {
-		try {
-			entityManager.getTransaction().begin();
-
 			CriteriaBuilder builder = entityManager.getCriteriaBuilder();
 			CriteriaUpdate<Person> criteriaUpdate = builder.createCriteriaUpdate( Person.class );
-			criteriaUpdate.from(Person.class);
+			criteriaUpdate.from( Person.class );
 			criteriaUpdate.set( Person_.subject, builder.nullLiteral( Subject.class ) );
-
 			entityManager.createQuery( criteriaUpdate ).executeUpdate();
+		} );
+	}
 
-			entityManager.getTransaction().commit();
+	@Test
-		}
+	@Jira( "https://hibernate.atlassian.net/browse/HHH-16803" )
-		catch (Exception e) {
+	public void testEnumNullLiteralUpdate() {
-			if ( entityManager.getTransaction().isActive() ) {
+		doInJPA( this::entityManagerFactory, entityManager -> {
-				entityManager.getTransaction().rollback();
+			final CriteriaBuilder builder = entityManager.getCriteriaBuilder();
-			}
+			final CriteriaUpdate<Person> criteriaUpdate = builder.createCriteriaUpdate( Person.class );
-			throw e;
+			criteriaUpdate.from( Person.class );
-		}
+			criteriaUpdate.set( Person_.eyeColor, builder.nullLiteral( EyeColor.class ) );
-		finally {
+			entityManager.createQuery( criteriaUpdate ).executeUpdate();
-			entityManager.close();
+		} );
-		}
 	}
 }

hibernate-core/src/test/java/org/hibernate/orm/test/jpa/criteria/nulliteral/Person.java

@@ -7,6 +7,7 @@
 package org.hibernate.orm.test.jpa.criteria.nulliteral;
 
 import jakarta.persistence.Entity;
+import jakarta.persistence.Enumerated;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToOne;
@@ -22,4 +23,7 @@ public class Person {
 
 	@ManyToOne
 	private Subject subject;
+
+	@Enumerated
+	private EyeColor eyeColor;
 }