diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/CSVImportFileServlet.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/CSVImportFileServlet.java
index b4384ce..9903303 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/CSVImportFileServlet.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/CSVImportFileServlet.java
@@ -14,7 +14,6 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpSession;
 
-
 import org.gcube.portlets.user.td.gwtservice.server.file.FileUploadSession;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVFileUtil;
 import org.slf4j.Logger;
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/file/FileUploadSession.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/file/FileUploadSession.java
index 34814ca..2db0863 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/file/FileUploadSession.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/file/FileUploadSession.java
@@ -3,7 +3,6 @@ package org.gcube.portlets.user.td.gwtservice.server.file;
 import java.io.File;
 import java.io.Serializable;
 
-
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVImportMonitor;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVParserConfiguration;
 import org.gcube.portlets.user.td.gwtservice.shared.file.FileUploadMonitor;
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVFileUtil.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVFileUtil.java
index c2283cb..2d896fa 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVFileUtil.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/csv/CSVFileUtil.java
@@ -20,16 +20,14 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
-
+import net.sf.csv4j.CSVReader;
+import net.sf.csv4j.ParseException;
 
 import org.gcube.portlets.user.td.gwtservice.shared.file.HeaderPresence;
 import org.mozilla.universalchardet.UniversalDetector;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import net.sf.csv4j.CSVReader;
-import net.sf.csv4j.ParseException;
-
 /**
  * 
  * @author "Giancarlo Panichi" 
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/destination/SDMXRegistryDestination.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/destination/SDMXRegistryDestination.java
index 2941007..61f48eb 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/destination/SDMXRegistryDestination.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/destination/SDMXRegistryDestination.java
@@ -1,6 +1,5 @@
 package org.gcube.portlets.user.td.gwtservice.shared.destination;
 
-import org.gcube.portlets.user.td.gwtservice.shared.source.Source;
 
 
 
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/source/SDMXRegistrySource.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/source/SDMXRegistrySource.java
index 5b5e959..1ec30d2 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/source/SDMXRegistrySource.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/source/SDMXRegistrySource.java
@@ -1,6 +1,5 @@
 package org.gcube.portlets.user.td.gwtservice.shared.source;
 
-import org.gcube.portlets.user.td.gwtservice.shared.source.Source;