From: PJ Fanning <fanningpj@apache.org>
Date: Fri, 15 Jul 2022 21:10:32 +0000 (+0000)
Subject: [github-357] fix equals check in CellNumberFormatter. Thanks to XenoAmess. This close... 
X-Git-Tag: REL_5_2_3~190
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=6e34a3cebea926c356866502c81a7c17fbeb40f8;p=poi.git

[github-357] fix equals check in CellNumberFormatter. Thanks to XenoAmess. This closes #357

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1902750 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/poi/src/main/java/org/apache/poi/ss/format/CellNumberFormatter.java b/poi/src/main/java/org/apache/poi/ss/format/CellNumberFormatter.java
index 3765e3b4fa..ee4d787e9e 100644
--- a/poi/src/main/java/org/apache/poi/ss/format/CellNumberFormatter.java
+++ b/poi/src/main/java/org/apache/poi/ss/format/CellNumberFormatter.java
@@ -530,7 +530,7 @@ public class CellNumberFormatter extends CellFormatter {
                     int modEndPos = delEndPos + adjust;
 
                     if (modPos < modEndPos) {
-                        if ("".equals(nextChange.getToAdd())) {
+                        if (nextChange.getToAdd() != null && nextChange.getToAdd().length() == 0) {
                             output.delete(modPos, modEndPos);
                         }
                         else {