diff --git a/.classpath b/.classpath
index d41851e..05bbe04 100644
--- a/.classpath
+++ b/.classpath
@@ -40,7 +40,6 @@
 	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
-			<attribute name="org.eclipse.jst.component.dependency" value="/WEB-INF/lib"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="lib" path="/home/giancarlo/gwt/gwt-2.6.1/validation-api-1.0.0.GA.jar" sourcepath="/home/giancarlo/gwt/gwt-2.6.1/validation-api-1.0.0.GA-sources.jar"/>
diff --git a/pom.xml b/pom.xml
index c2266a5..86a688a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,10 +44,10 @@
 		<distroDirectory>distro</distroDirectory>
 		<configDirectory>config</configDirectory>
 
-		 
+
 		<gwtVersion>2.6.1</gwtVersion>
 		<gwtLogVersion>3.3.2</gwtLogVersion>
-		<gxtVersion>3.1.1</gxtVersion> 
+		<gxtVersion>3.1.1</gxtVersion>
 
 		<KEYS>${env.KEYS}</KEYS>
 
@@ -78,6 +78,12 @@
 					<artifactId>home-library</artifactId>
 					<version>[1.0.0-SNAPSHOT, 2.0.0-SNAPSHOT)</version>
 				</dependency>
+				<!-- service-client-impl -->
+				<dependency>
+					<groupId>org.gcube.data.analysis.tabulardata</groupId>
+					<artifactId>service-client-impl</artifactId>
+					<version>[2.0.0-SNAPSHOT,3.0.0-SNAPSHOT)</version>
+				</dependency>
 				<dependency>
 					<groupId>org.gcube.core</groupId>
 					<artifactId>common-scope-maps</artifactId>
@@ -100,22 +106,13 @@
 			<artifactId>gwt-user</artifactId>
 			<version>${gwtVersion}</version>
 		</dependency>
-		
-	
-		<!-- 
-		<dependency>
-			<groupId>javax.validation</groupId>
-			<artifactId>validation-api</artifactId>
-			<version>1.0.0.GA</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>javax.validation</groupId>
-			<artifactId>validation-api</artifactId>
-			<version>1.0.0.GA</version>
-			<classifier>sources</classifier>
-			<scope>test</scope>
-		</dependency> -->
+
+
+		<!-- <dependency> <groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> 
+			<version>1.0.0.GA</version> <scope>test</scope> </dependency> <dependency> 
+			<groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> 
+			<version>1.0.0.GA</version> <classifier>sources</classifier> <scope>test</scope> 
+			</dependency> -->
 
 		<dependency>
 			<groupId>com.sencha.gxt</groupId>
@@ -124,12 +121,13 @@
 		</dependency>
 
 
+
 		<!-- tabular-data-gwt-service -->
 		<dependency>
 			<groupId>org.gcube.portlets.user</groupId>
 			<artifactId>tabular-data-gwt-service</artifactId>
 			<version>[2.0.0-SNAPSHOT,3.0.0-SNAPSHOT)</version>
-			<scope>provided</scope> 
+			<scope>provided</scope>
 		</dependency>
 
 		<!-- tabular-data-widget-common-event -->
@@ -137,7 +135,7 @@
 			<groupId>org.gcube.portlets.user</groupId>
 			<artifactId>tabular-data-widget-common-event</artifactId>
 			<version>[1.0.0-SNAPSHOT,2.0.0-SNAPSHOT)</version>
-		    <scope>provided</scope> 
+			<scope>provided</scope>
 		</dependency>
 
 		<!-- TD Expression -->
@@ -145,16 +143,16 @@
 			<groupId>org.gcube.portlets.user</groupId>
 			<artifactId>tabular-data-expression-widget</artifactId>
 			<version>[1.0.0-SNAPSHOT, 2.0.0-SNAPSHOT)</version>
-			<scope>provided</scope> 
+			<scope>provided</scope>
 		</dependency>
 
-		
+
 		<!-- TDX Source -->
 		<dependency>
 			<groupId>org.gcube.portlets.user</groupId>
 			<artifactId>tabular-data-widgetx-tdx-source</artifactId>
 			<version>[1.0.0-SNAPSHOT, 2.0.0-SNAPSHOT)</version>
-		   <scope>provided</scope>
+			<scope>provided</scope>
 		</dependency>
 
 		<!-- tabular-data-monitor-widget -->
@@ -162,7 +160,7 @@
 			<groupId>org.gcube.portlets.user</groupId>
 			<artifactId>tabular-data-monitor-widget</artifactId>
 			<version>[1.0.0-SNAPSHOT,2.0.0-SNAPSHOT)</version>
-		    <scope>provided</scope>
+			<scope>provided</scope>
 		</dependency>
 
 		<!-- LOGGING -->
@@ -170,7 +168,7 @@
 			<groupId>com.allen-sauer.gwt.log</groupId>
 			<artifactId>gwt-log</artifactId>
 			<version>${gwtLogVersion}</version>
-			<!--  <scope>provided</scope> -->
+			<scope>provided</scope>
 		</dependency>
 
 		<dependency>
@@ -343,5 +341,4 @@
 			</dependency>
 		</dependencies>
 	</dependencyManagement>
-	<packaging>war</packaging>
 </project>
diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/ColumnWidget.gwt.xml b/src/main/java/org/gcube/portlets/user/td/columnwidget/ColumnWidget.gwt.xml
index 971379c..7ed1339 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/ColumnWidget.gwt.xml
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/ColumnWidget.gwt.xml
@@ -25,8 +25,8 @@
 
 
 	<!-- Specify the app entry point class. -->
-	 <entry-point class='org.gcube.portlets.user.td.columnwidget.client.ColumnWidgetEntry' 
-		/> 
+	<!--  <entry-point class='org.gcube.portlets.user.td.columnwidget.client.ColumnWidgetEntry' 
+		/> -->
 
 	<!-- Specify the paths for translatable code -->
 	<source path='client' />
diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/ColumnWidgetEntry.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/ColumnWidgetEntry.java
index 41bfead..baa1133 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/ColumnWidgetEntry.java
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/ColumnWidgetEntry.java
@@ -70,6 +70,7 @@ public class ColumnWidgetEntry  implements EntryPoint  {
 			@Override
 			public void onFailure(Throwable caught) {
 				Log.info("No valid user found: " + caught.getMessage());
+				caught.printStackTrace();
 				if (caught instanceof TDGWTSessionExpiredException) {
 					UtilsGXT3.alert("Error", "Expired Session");
 					
@@ -80,9 +81,8 @@ public class ColumnWidgetEntry  implements EntryPoint  {
 
 			@Override
 			public void onSuccess(UserInfo result) {
-				
 				Log.info("Hello: " + result.getUsername());
-
+				test();
 			}
 
 		});
diff --git a/src/main/resources/org/gcube/portlets/user/td/columnwidget/ColumnWidget.gwt.xml b/src/main/resources/org/gcube/portlets/user/td/columnwidget/ColumnWidget.gwt.xml
index 217b81c..d6b2fba 100644
--- a/src/main/resources/org/gcube/portlets/user/td/columnwidget/ColumnWidget.gwt.xml
+++ b/src/main/resources/org/gcube/portlets/user/td/columnwidget/ColumnWidget.gwt.xml
@@ -28,20 +28,20 @@
   
   
   <!-- Specify the app entry point class.                         -->
-  <entry-point class='org.gcube.portlets.user.td.columnwidget.client.ColumnWidgetEntry' /> 
+  <!-- <entry-point class='org.gcube.portlets.user.td.columnwidget.client.ColumnWidgetEntry' /> -->
 
 
-	 
+	 <!-- 
 	<set-property name="log_ConsoleLogger" value="ENABLED" />
     <set-property name="log_DivLogger" value="ENABLED" />
     <set-property name="log_GWTLogger" value="ENABLED" />
-    <set-property name="log_SystemLogger" value="ENABLED" /> 
+    <set-property name="log_SystemLogger" value="ENABLED" /> -->
    
-   	<!-- 
+   	
 	<set-property name="log_ConsoleLogger" value="DISABLED" />
 	<set-property name="log_DivLogger" value="DISABLED" />
 	<set-property name="log_GWTLogger" value="DISABLED" />
-	<set-property name="log_SystemLogger" value="DISABLED" /> -->
+	<set-property name="log_SystemLogger" value="DISABLED" /> 
 		
 
   <!-- Specify the paths for translatable code                    -->