From 6bdf12beb68e14c83bba83556066273bd8a5fa5a Mon Sep 17 00:00:00 2001
From: Matt Davis <matt.davis@ascend-tech.us>
Date: Tue, 10 Sep 2024 14:54:25 -0400
Subject: [PATCH] handle null as ""

---
 .../data/source/spreadsheet/DefaultDelimitedListHandler.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zulia-data/src/main/java/io/zulia/data/source/spreadsheet/DefaultDelimitedListHandler.java b/zulia-data/src/main/java/io/zulia/data/source/spreadsheet/DefaultDelimitedListHandler.java
index a28735f1..dad39050 100644
--- a/zulia-data/src/main/java/io/zulia/data/source/spreadsheet/DefaultDelimitedListHandler.java
+++ b/zulia-data/src/main/java/io/zulia/data/source/spreadsheet/DefaultDelimitedListHandler.java
@@ -42,6 +42,6 @@ else if (clazz.equals(Double.class)) {
 
 	@Override
 	public String collectionToCellValue(Collection<?> collection) {
-		return Joiner.on(listDelimiter).join(collection);
+		return Joiner.on(listDelimiter).useForNull("").join(collection);
 	}
 }