Fix validate credentials method

6 years ago · df21ce8043
1 changed files with 1 additions and 1 deletions
--- a/application/src/main/java/org/thingsboard/server/service/transport/DefaultTransportApiService.java
+++ b/application/src/main/java/org/thingsboard/server/service/transport/DefaultTransportApiService.java
@ -165,7 +165,7 @@ public class DefaultTransportApiService implements TransportApiService {

    private ListenableFuture<TransportApiResponseMsg> validateCredentials(TransportProtos.ValidateBasicMqttCredRequestMsg mqtt) {
        DeviceCredentials credentials = null;
-        if (mqtt.getUserName() != null) {
+        if (!StringUtils.isEmpty(mqtt.getUserName())) {
            credentials = deviceCredentialsService.findDeviceCredentialsByCredentialsId(mqtt.getUserName());
            if (credentials != null) {
                if (credentials.getCredentialsType() == DeviceCredentialsType.ACCESS_TOKEN) {