diff --git a/msa/black-box-tests/src/test/java/org/thingsboard/server/msa/AbstractContainerTest.java b/msa/black-box-tests/src/test/java/org/thingsboard/server/msa/AbstractContainerTest.java
index b85c8984bc..97d77ad9bf 100644
--- a/msa/black-box-tests/src/test/java/org/thingsboard/server/msa/AbstractContainerTest.java
+++ b/msa/black-box-tests/src/test/java/org/thingsboard/server/msa/AbstractContainerTest.java
@@ -19,7 +19,6 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.collect.ImmutableMap;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonObject;
-import com.google.gson.JsonParser;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.http.conn.ssl.TrustStrategy;
 import org.apache.http.ssl.SSLContextBuilder;
@@ -37,10 +36,8 @@ import java.util.*;
 @Listeners(TestListener.class)
 public abstract class AbstractContainerTest {
     protected static long timeoutMultiplier = 1;
-
     protected ObjectMapper mapper = new ObjectMapper();
-    protected JsonParser jsonParser = new JsonParser();
-    protected  ContainerTestSuite containerTestSuite = ContainerTestSuite.getInstance();
+    private static final ContainerTestSuite containerTestSuite = ContainerTestSuite.getInstance();
     protected static TestRestClient testRestClient;
 
     @BeforeSuite
@@ -95,27 +92,6 @@ public abstract class AbstractContainerTest {
                 .build();
     }
 
-    protected JsonObject createGatewayConnectPayload(String deviceName){
-        JsonObject payload = new JsonObject();
-        payload.addProperty("device", deviceName);
-        return payload;
-    }
-
-    protected JsonObject createGatewayPayload(String deviceName, long ts){
-        JsonObject payload = new JsonObject();
-        payload.add(deviceName, createGatewayTelemetryArray(ts));
-        return payload;
-    }
-
-    protected JsonArray createGatewayTelemetryArray(long ts){
-        JsonArray telemetryArray = new JsonArray();
-        if (ts > 0)
-            telemetryArray.add(createPayload(ts));
-        else
-            telemetryArray.add(createPayload());
-        return telemetryArray;
-    }
-
     protected JsonObject createPayload(long ts) {
         JsonObject values = createPayload();
         JsonObject payload = new JsonObject();