Refactoring according to comments from @YevhenBondarenko

@@ -15,13 +15,11 @@
  */
  */
 package org.thingsboard.server.dao.device.provision;
 package org.thingsboard.server.dao.device.provision;
 
 
-import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.Data;
 import org.thingsboard.server.common.data.security.DeviceCredentials;
 import org.thingsboard.server.common.data.security.DeviceCredentials;
 
 
 @Data
 @Data
-@AllArgsConstructor
 public class ProvisionResponse {
 public class ProvisionResponse {
-    private DeviceCredentials deviceCredentials;
-    private ProvisionResponseStatus responseStatus;
+    private final DeviceCredentials deviceCredentials;
+    private final ProvisionResponseStatus responseStatus;
 }
 }

@@ -167,10 +167,6 @@ public class MqttTransportHandler extends ChannelInboundHandlerAdapter implement
             case PINGREQ:
             case PINGREQ:
                 ctx.writeAndFlush(new MqttMessage(new MqttFixedHeader(PINGRESP, false, AT_MOST_ONCE, false, 0)));
                 ctx.writeAndFlush(new MqttMessage(new MqttFixedHeader(PINGRESP, false, AT_MOST_ONCE, false, 0)));
                 break;
                 break;
-//            case SUBSCRIBE:
-//                deviceSessionCtx.setDeviceInfo(TransportDeviceInfo);
-//                processSubscribe(ctx, (MqttSubscribeMessage) msg);
-//                break;
             case DISCONNECT:
             case DISCONNECT:
                 ctx.close();
                 ctx.close();
                 break;
                 break;

@@ -417,8 +417,7 @@ public class JsonConverter {
             if (toGateway) {
             if (toGateway) {
                 result.addProperty("id", requestId);
                 result.addProperty("id", requestId);
             }
             }
-            result.addProperty("deviceId", new DeviceId(
-                    new UUID(payload.getDeviceCredentials().getDeviceIdMSB(), payload.getDeviceCredentials().getDeviceIdLSB())).toString());
+            result.addProperty("deviceId", new UUID(payload.getDeviceCredentials().getDeviceIdMSB(), payload.getDeviceCredentials().getDeviceIdLSB()).toString());
             result.addProperty("credentialsType", payload.getDeviceCredentials().getCredentialsType().name());
             result.addProperty("credentialsType", payload.getDeviceCredentials().getCredentialsType().name());
             result.addProperty("credentialsId", payload.getDeviceCredentials().getCredentialsId());
             result.addProperty("credentialsId", payload.getDeviceCredentials().getCredentialsId());
             result.addProperty("credentialsValue",
             result.addProperty("credentialsValue",

@@ -22,7 +22,6 @@ import org.thingsboard.server.common.data.page.PageData;
 import org.thingsboard.server.common.data.page.PageLink;
 import org.thingsboard.server.common.data.page.PageLink;
 import org.thingsboard.server.dao.Dao;
 import org.thingsboard.server.dao.Dao;
 
 
-import java.util.Optional;
 import java.util.UUID;
 import java.util.UUID;
 
 
 public interface DeviceProfileDao extends Dao<DeviceProfile> {
 public interface DeviceProfileDao extends Dao<DeviceProfile> {

@@ -29,7 +29,6 @@ import org.thingsboard.server.dao.model.sql.DeviceProfileEntity;
 import org.thingsboard.server.dao.sql.JpaAbstractSearchTextDao;
 import org.thingsboard.server.dao.sql.JpaAbstractSearchTextDao;
 
 
 import java.util.Objects;
 import java.util.Objects;
-import java.util.Optional;
 import java.util.UUID;
 import java.util.UUID;
 
 
 @Component
 @Component