From 5c81a828f129977a1bfb3c7f996b15e209d1d318 Mon Sep 17 00:00:00 2001
From: Thibault Cordel <tcordel@enovacom.fr>
Date: Fri, 13 Dec 2024 15:46:37 +0100
Subject: [PATCH] tests: Transaction commit fails

Commiting a transaction in which a deletion has been made on an entitu
referenced by others element in cache results in an exception.

may be related to #055570c8af7c8455d6ae318d589c47441c55850c

This issue was initialy raised in spring-data-jpa but then redirected to
hibernate (https://github.com/spring-projects/spring-data-jpa/issues/3712)
---
 .../test/jpa/cascade/DeleteCascadeTest.java   | 130 ++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 hibernate-core/src/test/java/org/hibernate/orm/test/jpa/cascade/DeleteCascadeTest.java

diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/jpa/cascade/DeleteCascadeTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/jpa/cascade/DeleteCascadeTest.java
new file mode 100644
index 000000000000..3466d959fd13
--- /dev/null
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/jpa/cascade/DeleteCascadeTest.java
@@ -0,0 +1,130 @@
+package org.hibernate.orm.test.jpa.cascade;
+
+import jakarta.persistence.*;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
+import org.hibernate.query.criteria.HibernateCriteriaBuilder;
+import org.hibernate.query.criteria.JpaCriteriaQuery;
+import org.hibernate.testing.orm.junit.DomainModel;
+import org.hibernate.testing.orm.junit.SessionFactory;
+import org.hibernate.testing.orm.junit.SessionFactoryScope;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+@DomainModel(
+	annotatedClasses = {
+		DeleteCascadeTest.A.class,
+		DeleteCascadeTest.B.class,
+		DeleteCascadeTest.C.class,
+	}
+)
+@SessionFactory
+class DeleteCascadeTest {
+
+	@Entity
+	public static class A {
+		@Id
+		@GeneratedValue(strategy = GenerationType.IDENTITY)
+		private long id;
+
+		public long getId() {
+			return id;
+		}
+
+		public void setId(long id) {
+			this.id = id;
+		}
+	}
+
+	@Entity
+	public static class B {
+		@Id
+		@GeneratedValue(strategy = GenerationType.IDENTITY)
+		private long id;
+		@ManyToOne
+		@JoinColumn(name = "a_id", nullable = false)
+		@OnDelete(action = OnDeleteAction.CASCADE)
+		private A a;
+
+		public long getId() {
+			return id;
+		}
+
+		public void setId(long id) {
+			this.id = id;
+		}
+
+		public A getA() {
+			return a;
+		}
+
+		public void setA(A a) {
+			this.a = a;
+		}
+
+	}
+
+	@Entity
+	public static class C {
+		@Id
+		@GeneratedValue(strategy = GenerationType.IDENTITY)
+		private long id;
+		@ManyToOne
+		@JoinColumn(name = "b_id", nullable = false)
+		@OnDelete(action = OnDeleteAction.CASCADE)
+		private B b;
+
+		public long getId() {
+			return id;
+		}
+
+		public void setId(long id) {
+			this.id = id;
+		}
+
+		public B getB() {
+			return b;
+		}
+
+		public void setB(B b) {
+			this.b = b;
+		}
+
+	}
+
+
+	@Test
+	void testRemove(SessionFactoryScope scope) {
+		scope.inTransaction(
+			session -> {
+				A a = new A();
+				session.persist(a);
+
+				B bb = new B();
+				bb.setA(a);
+				session.persist(bb);
+
+				C c = new C();
+				c.setB(bb);
+				session.persist(c);
+			});
+		scope.inTransaction(
+			session -> {
+
+				HibernateCriteriaBuilder cb = session.getCriteriaBuilder();
+				JpaCriteriaQuery<C> cq = cb.createQuery(C.class);
+				cq.from(C.class);
+				JpaCriteriaQuery<B> bq = cb.createQuery(B.class);
+				bq.from(B.class);
+
+				// This is how spring-data-jpa manage delete* Named queries
+				session.createQuery(cq).getResultList();
+				List<B> bs = session.createQuery(bq).getResultList();
+				for (B b1 : bs) {
+					session.remove(b1);
+				}
+			});
+	}
+}
+