diff --git a/application/src/test/java/org/thingsboard/server/controller/BaseCustomerControllerTest.java b/application/src/test/java/org/thingsboard/server/controller/BaseCustomerControllerTest.java
index 492b76374a..628cf0c495 100644
--- a/application/src/test/java/org/thingsboard/server/controller/BaseCustomerControllerTest.java
+++ b/application/src/test/java/org/thingsboard/server/controller/BaseCustomerControllerTest.java
@@ -44,7 +44,6 @@ import static org.hamcrest.Matchers.containsString;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
 public abstract class BaseCustomerControllerTest extends AbstractControllerTest {
-    static final int TIMEOUT = 30;
     static final TypeReference<PageData<Customer>> PAGE_DATA_CUSTOMER_TYPE_REFERENCE = new TypeReference<>() {};
 
     ListeningExecutorService executor;
diff --git a/application/src/test/java/org/thingsboard/server/service/sql/SequentialTimeseriesPersistenceTest.java b/application/src/test/java/org/thingsboard/server/service/sql/SequentialTimeseriesPersistenceTest.java
index 2598bbe7d1..c1b87d9ac5 100644
--- a/application/src/test/java/org/thingsboard/server/service/sql/SequentialTimeseriesPersistenceTest.java
+++ b/application/src/test/java/org/thingsboard/server/service/sql/SequentialTimeseriesPersistenceTest.java
@@ -56,8 +56,6 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
 @DaoSqlTest
 public class SequentialTimeseriesPersistenceTest extends AbstractControllerTest {
 
-    static final int TIMEOUT = 30;
-
     final String TOTALIZER = "Totalizer";
     final int TTL = 99999;
     final String GENERIC_CUMULATIVE_OBJ = "genericCumulativeObj";
diff --git a/application/src/test/java/org/thingsboard/server/transport/lwm2m/ota/sql/OtaLwM2MIntegrationTest.java b/application/src/test/java/org/thingsboard/server/transport/lwm2m/ota/sql/OtaLwM2MIntegrationTest.java
index 8173b39b5c..f7d1303674 100644
--- a/application/src/test/java/org/thingsboard/server/transport/lwm2m/ota/sql/OtaLwM2MIntegrationTest.java
+++ b/application/src/test/java/org/thingsboard/server/transport/lwm2m/ota/sql/OtaLwM2MIntegrationTest.java
@@ -52,8 +52,6 @@ import static org.thingsboard.server.transport.lwm2m.Lwm2mTestHelper.LwM2MProfil
 @Slf4j
 public class OtaLwM2MIntegrationTest extends AbstractOtaLwM2MIntegrationTest {
 
-    public static final int TIMEOUT = 30;
-
     protected final String OBSERVE_ATTRIBUTES_WITH_PARAMS_OTA =
 
             "    {\n" +