From 5af4f1a5d1207d9c08a6c4d98b7ea21340f7e7ba Mon Sep 17 00:00:00 2001
From: Florian Schmaus <flo@geekplace.eu>
Date: Thu, 23 Apr 2015 21:45:33 +0200
Subject: [PATCH] Synchronize MultiUserchat.changeNickname(Resourcepart)

---
 .../main/java/org/jivesoftware/smackx/muc/MultiUserChat.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MultiUserChat.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MultiUserChat.java
index 7d341c5f9..0d8a09e64 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MultiUserChat.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MultiUserChat.java
@@ -969,7 +969,7 @@ public class MultiUserChat {
      * @throws InterruptedException 
      * @throws MucNotJoinedException 
      */
-    public void changeNickname(Resourcepart nickname) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException, MucNotJoinedException  {
+    public synchronized void changeNickname(Resourcepart nickname) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException, MucNotJoinedException  {
         StringUtils.requireNotNullOrEmpty(nickname, "Nickname must not be null or blank.");
         // Check that we already have joined the room before attempting to change the
         // nickname.