HHH-18158 additional test

Signed-off-by: Gavin King <gavin@hibernate.org>

hibernate-core/src/test/java/org/hibernate/orm/test/records/GenericEnbeddedIdRecordTest.java

@@ -0,0 +1,73 @@
+package org.hibernate.orm.test.records;
+
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+import jakarta.persistence.EmbeddedId;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.SequenceGenerator;
+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.Collection;
+import java.util.Collections;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+@SessionFactory
+@DomainModel(annotatedClasses = {GenericEnbeddedIdRecordTest.MainEntity.class, GenericEnbeddedIdRecordTest.ReferencedEntity.class})
+class GenericEnbeddedIdRecordTest {
+
+    @Test
+    void testOverrideJoinColumn(SessionFactoryScope scope) {
+        scope.inTransaction(entityManager -> {
+            MainEntity mainEntity = new MainEntity();
+            ReferencedEntity referencedEntity = new ReferencedEntity();
+            mainEntity.id = new GenericEmbeddedId<>(referencedEntity);
+            referencedEntity.entities = Collections.singleton(mainEntity);
+            entityManager.persist(referencedEntity);
+            assertNotNull(mainEntity);
+        });
+    }
+
+    @Embeddable
+    public record GenericEmbeddedId<T>(@ManyToOne(fetch = FetchType.EAGER)
+                                       @JoinColumn(name = "REFERENCED_ENTITY_ID")
+                                       T referencedEntity) {
+    }
+
+    @Entity
+    public static class MainEntity {
+
+        @EmbeddedId
+        private GenericEmbeddedId<ReferencedEntity> id;
+
+        @Column(name = "DESCRIPTION")
+        private String description;
+
+    }
+
+    @Entity
+    public static class ReferencedEntity {
+
+        @Id
+        @GeneratedValue(strategy = GenerationType.SEQUENCE,
+                generator = "REFERENCED_ENTITY_ID_GEN")
+        @SequenceGenerator(name = "REFERENCED_ENTITY_ID_GEN")
+        @Column(name = "REFERENCED_ENTITY_ID")
+        private Long id;
+
+        @OneToMany(mappedBy = "id.referencedEntity", cascade = CascadeType.ALL)
+        private Collection<MainEntity> entities;
+
+    }
+}