From 9a2c2413c06ff7483f80f6629efd25db6ea2dd1f Mon Sep 17 00:00:00 2001
From: wenshao <szujobs@hotmail.com>
Date: Fri, 5 Dec 2014 23:27:36 +0800
Subject: [PATCH] bug fixed for async closed

---
 .../com/alibaba/druid/pool/DruidPooledConnection.java | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/main/java/com/alibaba/druid/pool/DruidPooledConnection.java b/src/main/java/com/alibaba/druid/pool/DruidPooledConnection.java
index c4b831014a..90677c7eb7 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidPooledConnection.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidPooledConnection.java
@@ -1085,6 +1085,17 @@ public class DruidPooledConnection extends PoolableWrapper implements javax.sql.
     }
 
     public void checkState() throws SQLException {
+        boolean asyncCloseEnable = this.getConnectionHolder().getDataSource().isAsyncCloseConnectionEnable();
+        if (asyncCloseEnable) {
+            synchronized (this) {
+                checkStateInternal();
+            }
+        } else {
+            checkStateInternal();
+        }
+    }
+    
+    private void checkStateInternal() throws SQLException {
         if (holder == null) {
             if (disableError != null) {
                 throw new SQLException("connection holder is null", disableError);