diff --git a/src/main/java/org/gcube/portal/socialmail/PeriodicTask.java b/src/main/java/org/gcube/portal/socialmail/PeriodicTask.java
index 458ab05..de4de2a 100644
--- a/src/main/java/org/gcube/portal/socialmail/PeriodicTask.java
+++ b/src/main/java/org/gcube/portal/socialmail/PeriodicTask.java
@@ -4,7 +4,6 @@ import static org.gcube.common.authorization.client.Constants.authorizationServi
 
 import java.security.GeneralSecurityException;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Date;
 import java.util.List;
 import java.util.Properties;