diff --git a/application/src/test/java/org/thingsboard/server/transport/mqtt/sparkplug/connection/AbstractMqttV5ClientSparkplugConnectionTest.java b/application/src/test/java/org/thingsboard/server/transport/mqtt/sparkplug/connection/AbstractMqttV5ClientSparkplugConnectionTest.java
index 637cf49428..1a5781afd4 100644
--- a/application/src/test/java/org/thingsboard/server/transport/mqtt/sparkplug/connection/AbstractMqttV5ClientSparkplugConnectionTest.java
+++ b/application/src/test/java/org/thingsboard/server/transport/mqtt/sparkplug/connection/AbstractMqttV5ClientSparkplugConnectionTest.java
@@ -137,6 +137,12 @@ public abstract class AbstractMqttV5ClientSparkplugConnectionTest extends Abstra
         }
     }
 
+    /**
+     * OFFLINE_All
+     * @param cntDevices
+     * @throws Exception
+     */
+
     protected void processConnectClientWithCorrectAccessTokenWithNDEATH_State_ONLINE_All_Then_OFFLINE_All(int cntDevices) throws Exception {
         long ts = calendar.getTimeInMillis();
         List<Device> devices = connectClientWithCorrectAccessTokenWithNDEATHCreatedDevices(cntDevices, ts);
@@ -166,6 +172,7 @@ public abstract class AbstractMqttV5ClientSparkplugConnectionTest extends Abstra
         }
     }
 
+
     private boolean findEqualsKeyValueInKvEntrys(List<TsKvEntry> finalFuture, TsKvEntry tsKvEntry) {
         for (TsKvEntry kvEntry : finalFuture) {
             if (kvEntry.getKey().equals(tsKvEntry.getKey()) && kvEntry.getValue().equals(tsKvEntry.getValue())) {