From df48c99577f31373ead5bf76ae12db457dcbb000 Mon Sep 17 00:00:00 2001
From: Pickle <850885154@qq.com>
Date: Thu, 19 Sep 2019 11:45:55 +0800
Subject: [PATCH] fix singleton with volatile (#818)

---
 .../src/main/java/cn/escheduler/alert/AlertServer.java          | 2 +-
 .../java/cn/escheduler/common/thread/ThreadPoolExecutors.java   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/escheduler-alert/src/main/java/cn/escheduler/alert/AlertServer.java b/escheduler-alert/src/main/java/cn/escheduler/alert/AlertServer.java
index 8de3a65d6c..27c5f0ce56 100644
--- a/escheduler-alert/src/main/java/cn/escheduler/alert/AlertServer.java
+++ b/escheduler-alert/src/main/java/cn/escheduler/alert/AlertServer.java
@@ -39,7 +39,7 @@ public class AlertServer {
 
     private AlertSender alertSender;
 
-    private static AlertServer instance;
+    private static volatile AlertServer instance;
 
     private AlertServer() {
 
diff --git a/escheduler-common/src/main/java/cn/escheduler/common/thread/ThreadPoolExecutors.java b/escheduler-common/src/main/java/cn/escheduler/common/thread/ThreadPoolExecutors.java
index 8329e8c18a..ea03026d3a 100644
--- a/escheduler-common/src/main/java/cn/escheduler/common/thread/ThreadPoolExecutors.java
+++ b/escheduler-common/src/main/java/cn/escheduler/common/thread/ThreadPoolExecutors.java
@@ -40,7 +40,7 @@ public class ThreadPoolExecutors {
 
     private static final Logger logger = LoggerFactory.getLogger(ThreadPoolExecutors.class);
     private static Executor executor;
-    private static ThreadPoolExecutors threadPoolExecutors;
+    private static volatile ThreadPoolExecutors threadPoolExecutors;
 
     private ThreadPoolExecutors(){}