From 7c23884c5979c9bebb4bbb7bfa64726bd05c163b Mon Sep 17 00:00:00 2001
From: Daniel Beck <daniel-beck@users.noreply.github.com>
Date: Thu, 12 Apr 2018 09:45:30 +0200
Subject: [PATCH] [FIX JENKINS-50748] Handle null arg to jsStringEscape

---
 core/src/main/java/hudson/Functions.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/src/main/java/hudson/Functions.java b/core/src/main/java/hudson/Functions.java
index 8462b88994..d416b61095 100644
--- a/core/src/main/java/hudson/Functions.java
+++ b/core/src/main/java/hudson/Functions.java
@@ -1379,6 +1379,7 @@ public class Functions {
     }
 
     public static String jsStringEscape(String s) {
+        if (s == null) return null;
         StringBuilder buf = new StringBuilder();
         for( int i=0; i<s.length(); i++ ) {
             char ch = s.charAt(i);