From 0d297aada9850e6eceb418e07d5d1610817f0bef Mon Sep 17 00:00:00 2001
From: chenjianxing <jianxing.chen@fit2cloud.com>
Date: Wed, 24 Mar 2021 10:30:11 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E6=89=B9=E9=87=8F=E6=89=A7=E8=A1=8C?=
 =?UTF-8?q?=E6=8E=A5=E5=8F=A3=E7=94=A8=E4=BE=8B=E6=8A=A5=E9=94=99?=
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---
 .../java/io/metersphere/commons/utils/ScriptEngineUtils.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/backend/src/main/java/io/metersphere/commons/utils/ScriptEngineUtils.java b/backend/src/main/java/io/metersphere/commons/utils/ScriptEngineUtils.java
index 599d1b5234..2e2431d32d 100644
--- a/backend/src/main/java/io/metersphere/commons/utils/ScriptEngineUtils.java
+++ b/backend/src/main/java/io/metersphere/commons/utils/ScriptEngineUtils.java
@@ -22,7 +22,8 @@ public class ScriptEngineUtils {
         }
     }
 
-    public static String calculate(String input) {
+    // graal.js 禁止多线程同时访问，加上 synchronized
+    public synchronized static String calculate(String input) {
         try {
             return engine.eval("calculate('" + input + "')").toString();
         } catch (ScriptException e) {