From 33d2e7cc624abc1dba21a24e9deea354bd232494 Mon Sep 17 00:00:00 2001
From: Matthias Ronge <matthias.ronge@mik-center.de>
Date: Fri, 3 Nov 2023 11:01:12 +0100
Subject: [PATCH] Update Helper.java

---
 Kitodo/src/main/java/org/kitodo/production/helper/Helper.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Kitodo/src/main/java/org/kitodo/production/helper/Helper.java b/Kitodo/src/main/java/org/kitodo/production/helper/Helper.java
index 04c2770c743..955cd7c66f3 100644
--- a/Kitodo/src/main/java/org/kitodo/production/helper/Helper.java
+++ b/Kitodo/src/main/java/org/kitodo/production/helper/Helper.java
@@ -490,6 +490,7 @@ private static String appendUnusedInsertions(String message, String... insertion
         StringBuilder messageBuilder = new StringBuilder(message);
         for (String insertion : insertions) {
             String separator = ": ";
+            insertion = Objects.toString(insertion);
             if (!messageBuilder.toString().contains(insertion)) {
                 messageBuilder.append(separator).append(insertion);
             }