From 1ed577545fd1c9802da5a17fd350bacb21820085 Mon Sep 17 00:00:00 2001
From: Sergey Matvienko <smatvienko@thingsboard.io>
Date: Tue, 4 Jul 2023 15:25:05 +0200
Subject: [PATCH] TbDate toISOString sync as required SimpleDateFormat

---
 .../src/main/java/org/thingsboard/script/api/tbel/TbDate.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common/script/script-api/src/main/java/org/thingsboard/script/api/tbel/TbDate.java b/common/script/script-api/src/main/java/org/thingsboard/script/api/tbel/TbDate.java
index 9c360e5c7e..d8c5fb2265 100644
--- a/common/script/script-api/src/main/java/org/thingsboard/script/api/tbel/TbDate.java
+++ b/common/script/script-api/src/main/java/org/thingsboard/script/api/tbel/TbDate.java
@@ -73,7 +73,9 @@ public class TbDate extends Date {
     }
 
     public String toISOString() {
-        return isoDateFormat.format(this);
+        synchronized (TbDate.class) {
+            return isoDateFormat.format(this);
+        }
     }
 
     public String toLocaleString(String locale) {