From d049ad8e51e6e5f92c4ae615825b1c5b19d40a97 Mon Sep 17 00:00:00 2001
From: Volodymyr Babak <volodymyr.babak@gmail.com>
Date: Fri, 29 Mar 2019 16:11:08 +0200
Subject: [PATCH] Fixed doulbe PUBACK for attribute request messages

---
 .../server/transport/mqtt/session/GatewaySessionHandler.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/session/GatewaySessionHandler.java b/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/session/GatewaySessionHandler.java
index 6a14330813..33352be30e 100644
--- a/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/session/GatewaySessionHandler.java
+++ b/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/session/GatewaySessionHandler.java
@@ -279,10 +279,10 @@ public class GatewaySessionHandler {
 
                         @Override
                         public void onFailure(Throwable t) {
+                            ack(msg);
                             log.debug("[{}] Failed to process device attributes request command: {}", sessionId, deviceName, t);
                         }
                     }, context.getExecutor());
-            ack(msg);
         } else {
             throw new JsonSyntaxException(CAN_T_PARSE_VALUE + json);
         }