From 334793667e3bb9d5adfff033f27a8e1d40497f4c Mon Sep 17 00:00:00 2001
From: Rob Bygrave <robin.bygrave@gmail.com>
Date: Sun, 3 Mar 2024 14:14:23 +1300
Subject: [PATCH] Add deployment error message for ManyToMany with one of the
 related beans missing an @Id property

---
 .../io/ebeaninternal/server/deploy/BeanPropertyAssocMany.java  | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ebean-core/src/main/java/io/ebeaninternal/server/deploy/BeanPropertyAssocMany.java b/ebean-core/src/main/java/io/ebeaninternal/server/deploy/BeanPropertyAssocMany.java
index 1c2f3aa9b..423f5415c 100644
--- a/ebean-core/src/main/java/io/ebeaninternal/server/deploy/BeanPropertyAssocMany.java
+++ b/ebean-core/src/main/java/io/ebeaninternal/server/deploy/BeanPropertyAssocMany.java
@@ -379,6 +379,9 @@ public class BeanPropertyAssocMany<T> extends BeanPropertyAssoc<T> implements ST
     for (ExportedProperty exportedProperty : exportedProperties) {
       row.addColumn(exportedProperty.getForeignDbColumn());
     }
+    if (importedId == null) {
+      throw new PersistenceException("Missing @Id property on bean related to ManyToMany " + fullName());
+    }
     importedId.buildImport(row);
     return row.build();
   }