From 9e1cfeb39ee5005f41c86e72a46b378edcbbeace Mon Sep 17 00:00:00 2001
From: Alexander Bulaev <alexbool@yandex-team.ru>
Date: Wed, 6 Jul 2016 20:00:47 +0300
Subject: [PATCH] Fix race condition in DefaultServerMonitor.invalidate()
 leading to thread and connecation leakage

---
 .../src/main/com/mongodb/connection/DefaultServerMonitor.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/driver-core/src/main/com/mongodb/connection/DefaultServerMonitor.java b/driver-core/src/main/com/mongodb/connection/DefaultServerMonitor.java
index 3f0ffb6e547..c68c7504939 100644
--- a/driver-core/src/main/com/mongodb/connection/DefaultServerMonitor.java
+++ b/driver-core/src/main/com/mongodb/connection/DefaultServerMonitor.java
@@ -89,7 +89,7 @@ public void connect() {
     }
 
     @Override
-    public void invalidate() {
+    public synchronized void invalidate() {
         isTrue("open", !isClosed);
         monitor.close();
         monitorThread.interrupt();