HHH-15901 Add test for issue

hibernate-core/src/test/java/org/hibernate/orm/test/query/criteria/EmptyPredicateTest.java

@@ -0,0 +1,55 @@
+/*
+ * 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.query.criteria;
+
+import org.hibernate.testing.orm.domain.gambit.BasicEntity;
+import org.hibernate.testing.orm.junit.DomainModel;
+import org.hibernate.testing.orm.junit.JiraKey;
+import org.hibernate.testing.orm.junit.SessionFactory;
+import org.hibernate.testing.orm.junit.SessionFactoryScope;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.criteria.CriteriaBuilder;
+import jakarta.persistence.criteria.CriteriaQuery;
+import jakarta.persistence.criteria.Predicate;
+import jakarta.persistence.criteria.Root;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * @author Marco Belladelli
+ */
+@DomainModel(annotatedClasses = BasicEntity.class)
+@SessionFactory
+@JiraKey("HHH-15901")
+public class EmptyPredicateTest {
+	@BeforeAll
+	public void setUp(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			BasicEntity entity = new BasicEntity( 1, "test" );
+			session.persist( entity );
+		} );
+	}
+
+	@AfterAll
+	public void tearDown(SessionFactoryScope scope) {
+		scope.inTransaction( session -> session.createMutationQuery( "delete from BasicEntity" ).executeUpdate() );
+	}
+
+	@Test
+	public void testEmptyPredicateArray(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			final CriteriaBuilder cb = session.getCriteriaBuilder();
+			final CriteriaQuery<BasicEntity> query = cb.createQuery( BasicEntity.class );
+			final Root<BasicEntity> root = query.from( BasicEntity.class );
+			query.select( root ).where( new Predicate[] {} );
+			assertEquals( 1, session.createQuery( query ).getResultList().size() );
+		} );
+	}
+}