From aabed61d92b5adc4e769ee498d85070bab8e3625 Mon Sep 17 00:00:00 2001
From: alwaysForTop <35587008+alwaysForTop@users.noreply.github.com>
Date: Fri, 6 Dec 2019 10:25:26 +0800
Subject: [PATCH] Update DruidAbstractDataSource.java

---
 .../java/com/alibaba/druid/pool/DruidAbstractDataSource.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java b/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java
index ae2daeddf5..acc329c399 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java
@@ -344,7 +344,7 @@ public abstract class DruidAbstractDataSource extends WrapperAdapter implements
     }
 
     public void setUseUnfairLock(boolean useUnfairLock) {
-        if (lock.isFair() == !useUnfairLock) {
+        if (lock.isFair() == !useUnfairLock&&this.useUnfairLock!=null) {
             return;
         }