From a4a75efcd3023498367094d5d46b184930850d9b Mon Sep 17 00:00:00 2001
From: Christian Beikov <christian.beikov@gmail.com>
Date: Mon, 7 Aug 2023 11:08:02 +0200
Subject: [PATCH] HHH-17001 Test for StackOverflowError during parameter
 collection

---
 .../criteria/CriteriaTypeValidationTests.java | 85 +++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 hibernate-core/src/test/java/org/hibernate/orm/test/query/criteria/CriteriaTypeValidationTests.java

diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/query/criteria/CriteriaTypeValidationTests.java b/hibernate-core/src/test/java/org/hibernate/orm/test/query/criteria/CriteriaTypeValidationTests.java
new file mode 100644
index 0000000000..5fce4336cf
--- /dev/null
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/query/criteria/CriteriaTypeValidationTests.java
@@ -0,0 +1,85 @@
+/*
+ * 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 java.util.HashSet;
+import java.util.Set;
+
+import org.hibernate.query.criteria.HibernateCriteriaBuilder;
+
+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.Test;
+
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.Id;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.criteria.CriteriaQuery;
+import jakarta.persistence.criteria.Root;
+import jakarta.persistence.criteria.SetJoin;
+
+@DomainModel( annotatedClasses = {
+		CriteriaTypeValidationTests.Parent.class,
+		CriteriaTypeValidationTests.Child.class
+} )
+@SessionFactory
+public class CriteriaTypeValidationTests {
+
+	@Test
+	@JiraKey( "HHH-17001" )
+	public void testHhh17001(SessionFactoryScope scope) {
+		scope.inTransaction(
+				session -> {
+					final Child someChildToCompareTo = new Child( 1L );
+					session.persist(someChildToCompareTo);
+
+					final HibernateCriteriaBuilder cb = session.getCriteriaBuilder();
+					final CriteriaQuery<Parent> cq = cb.createQuery(Parent.class);
+					final Root<Parent> root = cq.from(Parent.class);
+					final SetJoin<Parent, Child> childrenJoin = root.joinSet( "children" );
+					// This will cause a StackOverflowError:
+					childrenJoin.on(cb.equal(childrenJoin, someChildToCompareTo));
+					// This works:
+					// cq.where(cb.equal(childrenJoin, someChildToCompareTo));
+					session.createQuery(cq).getResultList();
+				}
+		);
+	}
+
+
+	@Entity
+	public static class Parent {
+		@Id
+		private Long id;
+
+		private String name;
+
+		@OneToMany(mappedBy = "parent", fetch = FetchType.EAGER, cascade = CascadeType.ALL, orphanRemoval = true)
+		private Set<Child> children = new HashSet<>();
+	}
+
+	@Entity
+	public static class Child {
+		@Id
+		private Long id;
+
+		@ManyToOne
+		private Parent parent;
+
+		public Child() {
+		}
+
+		public Child(Long id) {
+			this.id = id;
+		}
+	}
+}