diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportMonitor.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportMonitor.java
index be2b7c6..f867fe5 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportMonitor.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportMonitor.java
@@ -2,8 +2,6 @@ package org.gcube.portlets.user.td.gwtservice.shared.sdmx;
 
 import java.io.Serializable;
 
-import org.gcube.portlets.user.td.gwtservice.shared.TRId;
-
 
 /**
  * 
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportSession.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportSession.java
index 0509626..2bae186 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportSession.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/sdmx/SDMXExportSession.java
@@ -5,10 +5,7 @@ package org.gcube.portlets.user.td.gwtservice.shared.sdmx;
 
 import java.io.Serializable;
 
-import org.gcube.portlets.user.td.gwtservice.shared.Codelist;
 import org.gcube.portlets.user.td.gwtservice.shared.TabResource;
-import org.gcube.portlets.user.td.gwtservice.shared.document.SDMXDocument;
-import org.gcube.portlets.user.td.gwtservice.shared.source.Source;