DeviceActorMessageProcessor: fixed message on MaxSessionsLimit and test header fixed

application/src/main/java/org/thingsboard/server/actors/device/DeviceActorMessageProcessor.java

@@ -131,7 +131,7 @@ class DeviceActorMessageProcessor extends AbstractContextAwareMsgProcessor {
         this.attributeSubscriptions = new HashMap<>();
         this.rpcSubscriptions = new HashMap<>();
         this.toDeviceRpcPendingMap = new HashMap<>();
-        this.sessions = new LinkedHashMapRemoveEldest<>(systemContext.getMaxConcurrentSessionsPerDevice(), this::notifyTransportAboutClosedSession);
+        this.sessions = new LinkedHashMapRemoveEldest<>(systemContext.getMaxConcurrentSessionsPerDevice(), this::notifyTransportAboutClosedSessionMaxSessionsLimit);
         if (initAttributes()) {
             restoreSessions();
         }
@@ -616,6 +616,11 @@ class DeviceActorMessageProcessor extends AbstractContextAwareMsgProcessor {
         }
     }
 
+    private void notifyTransportAboutClosedSessionMaxSessionsLimit(UUID sessionId, SessionInfoMetaData sessionMd) {
+        notifyTransportAboutClosedSession(sessionId, sessionMd, "max concurrent sessions limit reached per device!");
+    }
+
+
     private void notifyTransportAboutClosedSession(UUID sessionId, SessionInfoMetaData sessionMd, String message) {
         SessionCloseNotificationProto sessionCloseNotificationProto = SessionCloseNotificationProto
                 .newBuilder()

application/src/test/java/org/thingsboard/server/actors/device/DeviceActorMessageProcessorTest.java

@@ -1,12 +1,12 @@
 /**
  * Copyright © 2016-2021 The Thingsboard Authors
- * <p>
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.