Minor refactoring

src/main/java/it/inaf/oats/vospace/CollectionsController.java

@@ -6,8 +6,7 @@
 package it.inaf.oats.vospace;
 
 import it.inaf.ia2.aa.data.User;
-import it.inaf.oats.vospace.datamodel.collections.NodeCollectionsList;
-import it.inaf.oats.vospace.persistence.CollectionsDAO;
+import it.inaf.oats.vospace.datamodel.collections.NodeCollectionsWrapper;
 import javax.servlet.http.HttpServletRequest;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -33,11 +32,11 @@ public class CollectionsController {
 
     // list collections owned by user
     @GetMapping(value = "/collections")
-    public ResponseEntity<NodeCollectionsList> listCollections(
+    public ResponseEntity<NodeCollectionsWrapper> listCollections(
             HttpServletRequest request, User principal) {
         LOG.debug("list collections called for user {}", principal.getName());
 
-        NodeCollectionsList ncl = new NodeCollectionsList();
+        NodeCollectionsWrapper ncl = new NodeCollectionsWrapper();
 
         ncl.setNodeCollections(
                 collectionsService.listCollections(principal.getName()));