collection query builder
diff --git a/src/main/java/de/ids_mannheim/korap/security/auth/APIAuthentication.java b/src/main/java/de/ids_mannheim/korap/security/auth/APIAuthentication.java
index 97b0e1b..69ef5bf 100644
--- a/src/main/java/de/ids_mannheim/korap/security/auth/APIAuthentication.java
+++ b/src/main/java/de/ids_mannheim/korap/security/auth/APIAuthentication.java
@@ -7,11 +7,10 @@
import de.ids_mannheim.korap.exceptions.KustvaktException;
import de.ids_mannheim.korap.exceptions.StatusCodes;
import de.ids_mannheim.korap.interfaces.AuthenticationIface;
-import de.ids_mannheim.korap.user.Attributes;
+import de.ids_mannheim.korap.config.Attributes;
import de.ids_mannheim.korap.user.TokenContext;
import de.ids_mannheim.korap.user.User;
import de.ids_mannheim.korap.utils.NamingUtils;
-import de.ids_mannheim.korap.utils.StringUtils;
import net.sf.ehcache.Cache;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.Element;