From 3d6f05e4ea90e115f5e0f4d9ebb9b137f848b0a7 Mon Sep 17 00:00:00 2001
From: Darin Kelkhoff <darin.kelkhoff@gmail.com>
Date: Thu, 12 Jun 2025 16:52:35 -0500
Subject: [PATCH] avoid NPE on empty contennts

---
 .../core/model/metadata/MetaDataProducerMultiOutput.java        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/MetaDataProducerMultiOutput.java b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/MetaDataProducerMultiOutput.java
index 32c446a1..2ec4dea8 100644
--- a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/MetaDataProducerMultiOutput.java
+++ b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/MetaDataProducerMultiOutput.java
@@ -86,7 +86,7 @@ public class MetaDataProducerMultiOutput implements MetaDataProducerOutput, Sour
    {
       List<T> rs = new ArrayList<>();
 
-      for(MetaDataProducerOutput content : contents)
+      for(MetaDataProducerOutput content : CollectionUtils.nonNullList(contents))
       {
          if(content instanceof MetaDataProducerMultiOutput multiOutput)
          {