From 69025ab3af5c0eb9bda7f2fe67e60a1314e8b211 Mon Sep 17 00:00:00 2001
From: YevhenBondarenko <ybondarenko@thingsboard.io>
Date: Fri, 5 Mar 2021 18:17:35 +0200
Subject: [PATCH] TbWebSocketHandler refactoring

---
 .../server/controller/plugin/TbWebSocketHandler.java           | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/application/src/main/java/org/thingsboard/server/controller/plugin/TbWebSocketHandler.java b/application/src/main/java/org/thingsboard/server/controller/plugin/TbWebSocketHandler.java
index 166403f417..0e59030fe2 100644
--- a/application/src/main/java/org/thingsboard/server/controller/plugin/TbWebSocketHandler.java
+++ b/application/src/main/java/org/thingsboard/server/controller/plugin/TbWebSocketHandler.java
@@ -63,6 +63,7 @@ public class TbWebSocketHandler extends TextWebSocketHandler implements Telemetr
 
     private static final ConcurrentMap<String, SessionMetaData> internalSessionMap = new ConcurrentHashMap<>();
     private static final ConcurrentMap<String, String> externalSessionMap = new ConcurrentHashMap<>();
+    private static final ByteBuffer PING_MSG = ByteBuffer.wrap(new byte[]{});
 
     @Autowired
     private TelemetryWebSocketService webSocketService;
@@ -212,7 +213,7 @@ public class TbWebSocketHandler extends TextWebSocketHandler implements Telemetr
         synchronized void sendPing(long currentTime) {
             try {
                 if (currentTime - lastActivityTime >= pingTimeout) {
-                    this.asyncRemote.sendPing(ByteBuffer.wrap(new byte[]{}));
+                    this.asyncRemote.sendPing(PING_MSG);
                     lastActivityTime = currentTime;
                 }
             } catch (Exception e) {