From 58a933094fd5773f7c037f53b7d686ae6f9fa9bd Mon Sep 17 00:00:00 2001
From: Grahame Grieve <grahameg@gmail.ccom>
Date: Tue, 7 Mar 2023 06:30:01 +1100
Subject: [PATCH] fix json escaping

---
 .../src/main/java/org/hl7/fhir/utilities/Utilities.java         | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
index ed50e9ad6..4459a2525 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
@@ -996,7 +996,7 @@ public class Utilities {
       else if (c == ' ')
         b.append(" ");
       else if (isWhitespace(c)) {
-        b.append("\\u"+Integer.toHexString(c));
+        b.append("\\u"+Utilities.padLeft(Integer.toHexString(c), '0', 4));
       } else if (((int) c) < 32)
         b.append("\\u" + Utilities.padLeft(String.valueOf((int) c), '0', 4));
       else