diff --git a/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/JSONExportConfigCard.java b/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/JSONExportConfigCard.java
index 169f152..e3cbd74 100644
--- a/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/JSONExportConfigCard.java
+++ b/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/JSONExportConfigCard.java
@@ -3,8 +3,8 @@ package org.gcube.portlets.user.td.jsonexportwidget.client;
 import java.util.ArrayList;
 
 import org.gcube.portlets.user.td.gwtservice.shared.json.JSONExportSession;
-import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
 import org.gcube.portlets.user.td.jsonexportwidget.client.grid.ColumnDataGridPanel;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.tr.column.ColumnData;
 import org.gcube.portlets.user.td.wizardwidget.client.WizardCard;
 
 import com.allen_sauer.gwt.log.client.Log;
diff --git a/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/grid/ColumnDataGridPanel.java b/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/grid/ColumnDataGridPanel.java
index 70b611a..cdeaf0d 100644
--- a/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/grid/ColumnDataGridPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/grid/ColumnDataGridPanel.java
@@ -6,9 +6,9 @@ import java.util.List;
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTIsLockedException;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
-import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.tr.column.ColumnData;
 import org.gcube.portlets.user.td.wizardwidget.client.WizardCard;
 
 import com.allen_sauer.gwt.log.client.Log;
diff --git a/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/grid/ColumnDataProperties.java b/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/grid/ColumnDataProperties.java
index 6c06ff1..bb2c2a0 100644
--- a/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/grid/ColumnDataProperties.java
+++ b/src/main/java/org/gcube/portlets/user/td/jsonexportwidget/client/grid/ColumnDataProperties.java
@@ -1,6 +1,6 @@
 package org.gcube.portlets.user.td.jsonexportwidget.client.grid;
 
-import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.tr.column.ColumnData;
 
 import com.google.gwt.editor.client.Editor.Path;
 import com.sencha.gxt.core.client.ValueProvider;