diff --git a/src/main/java/org/gcube/portlets/user/workspace/client/AppController.java b/src/main/java/org/gcube/portlets/user/workspace/client/AppController.java
index 7fdbc3c..7ef8443 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/client/AppController.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/client/AppController.java
@@ -116,8 +116,6 @@ public class AppController implements SubscriberInterface {
 	private String selectedSmartFolderId;
 	private String selectedSmartFolderCategory;
 
-	
-	
 	public AppController(AppControllerExplorer appControllerExplorer) {
 		this.appContrExplorer = appControllerExplorer;
 		this.appContrExplorer.subscribe(this, new EventsTypeEnum[] {
diff --git a/src/main/java/org/gcube/portlets/user/workspace/client/view/grids/GxtGridFilterGroupPanel.java b/src/main/java/org/gcube/portlets/user/workspace/client/view/grids/GxtGridFilterGroupPanel.java
index 3c2492f..f17af1c 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/client/view/grids/GxtGridFilterGroupPanel.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/client/view/grids/GxtGridFilterGroupPanel.java
@@ -44,6 +44,7 @@ import com.extjs.gxt.ui.client.widget.grid.filters.GridFilters;
 import com.extjs.gxt.ui.client.widget.grid.filters.NumericFilter;
 import com.extjs.gxt.ui.client.widget.grid.filters.StringFilter;
 import com.extjs.gxt.ui.client.widget.layout.FitLayout;
+import com.google.gwt.i18n.client.DateTimeFormat;
 import com.google.gwt.i18n.client.NumberFormat;
 
 /**