From 6a1d7aa28d7dc6f60fdde05b10a60e7e63e82376 Mon Sep 17 00:00:00 2001
From: Paurikova2 <107862249+Paurikova2@users.noreply.github.com>
Date: Mon, 2 Sep 2024 08:35:04 +0200
Subject: [PATCH] Cannot create a new version because an owningcollection is
 null (#731)

* control if owning collection is null
---
 dspace-oai/src/main/java/org/dspace/xoai/util/ItemUtils.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dspace-oai/src/main/java/org/dspace/xoai/util/ItemUtils.java b/dspace-oai/src/main/java/org/dspace/xoai/util/ItemUtils.java
index ff566d598f25..1db31bcf8d47 100644
--- a/dspace-oai/src/main/java/org/dspace/xoai/util/ItemUtils.java
+++ b/dspace-oai/src/main/java/org/dspace/xoai/util/ItemUtils.java
@@ -401,7 +401,10 @@ public static Metadata retrieveMetadata(Context context, Item item) {
         if (restricted) {
             other.getField().add(createValue("restrictedAccess", "true"));
         }
-        other.getField().add(createValue("owningCollection", item.getOwningCollection().getName()));
+        // Because we reindex Solr, which is not done in vanilla
+        // The owning collection for workspace items is null
+        other.getField().add(createValue("owningCollection",
+                item.getOwningCollection() != null ? item.getOwningCollection().getName() : null));
         other.getField().add(createValue("itemId", item.getID().toString()));
         metadata.getElement().add(other);