another minor fix on getVREFoldersId when user is new

src/main/java/org/gcube/portlets/user/wswidget/StorageHubServiceUtil.java

@@ -186,12 +186,12 @@ public class StorageHubServiceUtil {
 			try {
 				List<? extends Item> list = wsclient.getVreFolders("hl:accounting");
 				toReturn =list.iterator().next().getParentId();
-			} catch (Exception e) {
-				_log.info("This user has no VRE Folders", e);
+			} catch (java.util.NoSuchElementException ex) {
+				_log.info("This user has no VRE Folders");
 				return null;
 			}			
 		}catch (Exception e) {
-			e.printStackTrace();
+			_log.warn("Could not load VREFolders id" + e.getMessage());
 		}
 		return toReturn;
 	}