RAVE-868 | Use the "ensureAuthorityCodes" method that already exists
diff --git a/rave-components/rave-mongodb/src/main/java/org/apache/rave/portal/model/MongoDbUser.java b/rave-components/rave-mongodb/src/main/java/org/apache/rave/portal/model/MongoDbUser.java
index d424a28..a36f8c0 100644
--- a/rave-components/rave-mongodb/src/main/java/org/apache/rave/portal/model/MongoDbUser.java
+++ b/rave-components/rave-mongodb/src/main/java/org/apache/rave/portal/model/MongoDbUser.java
@@ -77,9 +77,7 @@
 
     @Override
     public void setAuthorities(Collection<Authority> authorities) {
-        if (authorityCodes == null) {
-            authorityCodes = Lists.newArrayList();
-        }
+        ensureAuthorityCodes();
         authorityCodes.clear();
         if (authorities != null) {
             for (GrantedAuthority authority : authorities) {