diff --git a/application/src/test/java/org/thingsboard/server/transport/coap/security/AbstractCoapSecurityIntegrationTest.java b/application/src/test/java/org/thingsboard/server/transport/coap/security/AbstractCoapSecurityIntegrationTest.java
index b0531457a4..ec68a346f0 100644
--- a/application/src/test/java/org/thingsboard/server/transport/coap/security/AbstractCoapSecurityIntegrationTest.java
+++ b/application/src/test/java/org/thingsboard/server/transport/coap/security/AbstractCoapSecurityIntegrationTest.java
@@ -45,7 +45,6 @@ import org.thingsboard.server.utils.PortFinder;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.DatagramSocket;
-import java.net.ServerSocket;
 import java.security.GeneralSecurityException;
 import java.security.KeyStore;
 import java.security.PrivateKey;