diff --git a/pom.xml b/pom.xml
index fe736e6..02f81fd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -60,8 +60,7 @@
 		<profile>
 			<id>localRun</id>
 			<dependencies>
-				<!-- <dependency> <groupId>xerces</groupId> <artifactId>xercesImpl</artifactId> 
-					<version>2.7.1</version> </dependency> -->
+				<!-- Logger -->
 				<dependency>
 					<groupId>org.slf4j</groupId>
 					<artifactId>slf4j-api</artifactId>
diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/client/DataMinerManagerController.java b/src/main/java/org/gcube/portlets/user/dataminermanager/client/DataMinerManagerController.java
index bf4d678..1eda14b 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/client/DataMinerManagerController.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/client/DataMinerManagerController.java
@@ -34,7 +34,7 @@ import org.gcube.portlets.user.dataminermanager.shared.Constants;
 import org.gcube.portlets.user.dataminermanager.shared.data.OutputData;
 import org.gcube.portlets.user.dataminermanager.shared.data.computations.ComputationData;
 import org.gcube.portlets.user.dataminermanager.shared.data.computations.ComputationId;
-import org.gcube.portlets.user.dataminermanager.shared.exception.ExpiredSessionServiceException;
+import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
 import org.gcube.portlets.user.dataminermanager.shared.session.UserInfo;
 import org.gcube.portlets.user.dataminermanager.shared.workspace.DataMinerWorkArea;
 import org.gcube.portlets.user.dataminermanager.shared.workspace.ItemDescription;
@@ -263,7 +263,7 @@ public class DataMinerManagerController {
 
 					@Override
 					public void onFailure(Throwable caught) {
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session!");
 							EventBusProvider.INSTANCE
 									.fireEvent(new SessionExpiredEvent());
@@ -309,7 +309,7 @@ public class DataMinerManagerController {
 
 					@Override
 					public void onFailure(Throwable caught) {
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session!");
 							EventBusProvider.INSTANCE
 									.fireEvent(new SessionExpiredEvent());
@@ -353,7 +353,7 @@ public class DataMinerManagerController {
 
 					@Override
 					public void onFailure(Throwable caught) {
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session!");
 							EventBusProvider.INSTANCE
 									.fireEvent(new SessionExpiredEvent());
@@ -394,7 +394,7 @@ public class DataMinerManagerController {
 
 					@Override
 					public void onFailure(Throwable caught) {
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session!");
 							EventBusProvider.INSTANCE
 									.fireEvent(new SessionExpiredEvent());
@@ -427,7 +427,7 @@ public class DataMinerManagerController {
 
 					@Override
 					public void onFailure(Throwable caught) {
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session!");
 							EventBusProvider.INSTANCE
 									.fireEvent(new SessionExpiredEvent());
@@ -496,7 +496,7 @@ public class DataMinerManagerController {
 
 					@Override
 					public void onFailure(Throwable caught) {
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session");
 							EventBusProvider.INSTANCE
 									.fireEvent(new SessionExpiredEvent());
@@ -558,7 +558,7 @@ public class DataMinerManagerController {
 					@Override
 					public void onFailure(Throwable caught) {
 						monitor.hide();
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session");
 							EventBusProvider.INSTANCE
 									.fireEvent(new SessionExpiredEvent());
@@ -598,7 +598,7 @@ public class DataMinerManagerController {
 					@Override
 					public void onFailure(Throwable caught) {
 						monitor.hide();
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session");
 							EventBusProvider.INSTANCE
 									.fireEvent(new SessionExpiredEvent());
diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/client/computations/ComputationsExecutedPanel.java b/src/main/java/org/gcube/portlets/user/dataminermanager/client/computations/ComputationsExecutedPanel.java
index d00e03b..c6d30c4 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/client/computations/ComputationsExecutedPanel.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/client/computations/ComputationsExecutedPanel.java
@@ -19,7 +19,7 @@ import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServi
 import org.gcube.portlets.user.dataminermanager.client.type.DataMinerWorkAreaElementType;
 import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
 import org.gcube.portlets.user.dataminermanager.shared.Constants;
-import org.gcube.portlets.user.dataminermanager.shared.exception.ExpiredSessionServiceException;
+import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
 import org.gcube.portlets.user.dataminermanager.shared.workspace.ItemDescription;
 import org.gcube.portlets.widgets.workspaceuploader.client.WorkspaceUploadNotification.WorskpaceUploadNotificationListener;
 import org.gcube.portlets.widgets.workspaceuploader.client.uploader.DialogUpload.UPLOAD_TYPE;
@@ -516,7 +516,7 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 							@Override
 							public void onFailure(Throwable caught) {
-								if (caught instanceof ExpiredSessionServiceException) {
+								if (caught instanceof SessionExpiredServiceException) {
 									EventBusProvider.INSTANCE
 											.fireEvent(new SessionExpiredEvent());
 								} else {
diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/client/dataspace/InputDataSetsPanel.java b/src/main/java/org/gcube/portlets/user/dataminermanager/client/dataspace/InputDataSetsPanel.java
index c24415a..7ce5112 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/client/dataspace/InputDataSetsPanel.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/client/dataspace/InputDataSetsPanel.java
@@ -16,7 +16,7 @@ import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServi
 import org.gcube.portlets.user.dataminermanager.client.type.DataMinerWorkAreaElementType;
 import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
 import org.gcube.portlets.user.dataminermanager.shared.Constants;
-import org.gcube.portlets.user.dataminermanager.shared.exception.ExpiredSessionServiceException;
+import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
 import org.gcube.portlets.user.dataminermanager.shared.workspace.ItemDescription;
 import org.gcube.portlets.widgets.workspaceuploader.client.WorkspaceUploadNotification.WorskpaceUploadNotificationListener;
 import org.gcube.portlets.widgets.workspaceuploader.client.uploader.DialogUpload.UPLOAD_TYPE;
@@ -437,7 +437,7 @@ public class InputDataSetsPanel extends FramedPanel {
 
 							@Override
 							public void onFailure(Throwable caught) {
-								if (caught instanceof ExpiredSessionServiceException) {
+								if (caught instanceof SessionExpiredServiceException) {
 									EventBusProvider.INSTANCE
 											.fireEvent(new SessionExpiredEvent());
 								} else {
diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/client/dataspace/OutputDataSetsPanel.java b/src/main/java/org/gcube/portlets/user/dataminermanager/client/dataspace/OutputDataSetsPanel.java
index f9de1fa..8ae5b6e 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/client/dataspace/OutputDataSetsPanel.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/client/dataspace/OutputDataSetsPanel.java
@@ -16,7 +16,7 @@ import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServi
 import org.gcube.portlets.user.dataminermanager.client.type.DataMinerWorkAreaElementType;
 import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
 import org.gcube.portlets.user.dataminermanager.shared.Constants;
-import org.gcube.portlets.user.dataminermanager.shared.exception.ExpiredSessionServiceException;
+import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
 import org.gcube.portlets.user.dataminermanager.shared.workspace.ItemDescription;
 import org.gcube.portlets.widgets.workspaceuploader.client.WorkspaceUploadNotification.WorskpaceUploadNotificationListener;
 import org.gcube.portlets.widgets.workspaceuploader.client.uploader.DialogUpload.UPLOAD_TYPE;
@@ -435,7 +435,7 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 							@Override
 							public void onFailure(Throwable caught) {
-								if (caught instanceof ExpiredSessionServiceException) {
+								if (caught instanceof SessionExpiredServiceException) {
 									EventBusProvider.INSTANCE
 											.fireEvent(new SessionExpiredEvent());
 								} else {
diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/client/experiments/ComputationParametersPanel.java b/src/main/java/org/gcube/portlets/user/dataminermanager/client/experiments/ComputationParametersPanel.java
index f590c8b..f3eee5f 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/client/experiments/ComputationParametersPanel.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/client/experiments/ComputationParametersPanel.java
@@ -19,7 +19,7 @@ import org.gcube.portlets.user.dataminermanager.client.parametersfield.OperatorF
 import org.gcube.portlets.user.dataminermanager.client.parametersfield.TabularFld;
 import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServiceAsync;
 import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
-import org.gcube.portlets.user.dataminermanager.shared.exception.ExpiredSessionServiceException;
+import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
 import org.gcube.portlets.user.dataminermanager.shared.parameters.ColumnListParameter;
 import org.gcube.portlets.user.dataminermanager.shared.parameters.ColumnParameter;
 import org.gcube.portlets.user.dataminermanager.shared.parameters.Parameter;
@@ -201,7 +201,7 @@ public class ComputationParametersPanel extends SimpleContainer {
 
 					@Override
 					public void onFailure(Throwable caught) {
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session!");
 							EventBusProvider.INSTANCE
 									.fireEvent(new SessionExpiredEvent());
diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/FileFld.java b/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/FileFld.java
index 0026e7e..bf3f9c0 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/FileFld.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/FileFld.java
@@ -12,7 +12,7 @@ import org.gcube.portlets.user.dataminermanager.client.common.EventBusProvider;
 import org.gcube.portlets.user.dataminermanager.client.events.SessionExpiredEvent;
 import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServiceAsync;
 import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
-import org.gcube.portlets.user.dataminermanager.shared.exception.ExpiredSessionServiceException;
+import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
 import org.gcube.portlets.user.dataminermanager.shared.parameters.FileParameter;
 import org.gcube.portlets.user.dataminermanager.shared.parameters.Parameter;
 import org.gcube.portlets.user.dataminermanager.shared.workspace.ItemDescription;
@@ -203,7 +203,7 @@ public class FileFld extends AbstractFld {
 					public void onFailure(Throwable caught) {
 						Log.error("Error in retrieveFileInformation: "
 								+ caught.getMessage());
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session");
 
 						} else {
@@ -233,7 +233,7 @@ public class FileFld extends AbstractFld {
 
 						@Override
 						public void onFailure(Throwable caught) {
-							if (caught instanceof ExpiredSessionServiceException) {
+							if (caught instanceof SessionExpiredServiceException) {
 								EventBusProvider.INSTANCE
 										.fireEvent(new SessionExpiredEvent());
 							} else {
diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/TabItem.java b/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/TabItem.java
index 7acaeac..895bcd7 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/TabItem.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/TabItem.java
@@ -10,7 +10,7 @@ import org.gcube.portlets.user.dataminermanager.client.events.SessionExpiredEven
 import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServiceAsync;
 import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
 import org.gcube.portlets.user.dataminermanager.shared.data.TableItemSimple;
-import org.gcube.portlets.user.dataminermanager.shared.exception.ExpiredSessionServiceException;
+import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
 import org.gcube.portlets.user.dataminermanager.shared.parameters.TabularParameter;
 import org.gcube.portlets.user.dataminermanager.shared.workspace.ItemDescription;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSelectNotification.WorskpaceExplorerSelectNotificationListener;
@@ -225,7 +225,7 @@ public class TabItem extends HBoxLayoutContainer {
 					public void onFailure(Throwable caught) {
 						Log.error("Error in retrieveTableInformation "
 								+ caught.getMessage());
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session");
 
 						} else {
@@ -254,7 +254,7 @@ public class TabItem extends HBoxLayoutContainer {
 
 						@Override
 						public void onFailure(Throwable caught) {
-							if (caught instanceof ExpiredSessionServiceException) {
+							if (caught instanceof SessionExpiredServiceException) {
 								EventBusProvider.INSTANCE
 										.fireEvent(new SessionExpiredEvent());
 							} else {
diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/TabularFld.java b/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/TabularFld.java
index 0e47054..bb9b9c9 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/TabularFld.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/TabularFld.java
@@ -16,7 +16,7 @@ import org.gcube.portlets.user.dataminermanager.client.events.TabularFldChangeEv
 import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServiceAsync;
 import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
 import org.gcube.portlets.user.dataminermanager.shared.data.TableItemSimple;
-import org.gcube.portlets.user.dataminermanager.shared.exception.ExpiredSessionServiceException;
+import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
 import org.gcube.portlets.user.dataminermanager.shared.parameters.Parameter;
 import org.gcube.portlets.user.dataminermanager.shared.parameters.TabularParameter;
 import org.gcube.portlets.user.dataminermanager.shared.workspace.ItemDescription;
@@ -280,7 +280,7 @@ public class TabularFld extends AbstractFld implements
 					public void onFailure(Throwable caught) {
 						Log.error("Error in retrieveTableInformation "
 								+ caught.getMessage());
-						if (caught instanceof ExpiredSessionServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session");
 
 						} else {
@@ -308,7 +308,7 @@ public class TabularFld extends AbstractFld implements
 
 						@Override
 						public void onFailure(Throwable caught) {
-							if (caught instanceof ExpiredSessionServiceException) {
+							if (caught instanceof SessionExpiredServiceException) {
 								EventBusProvider.INSTANCE
 										.fireEvent(new SessionExpiredEvent());
 							} else {
diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/server/SessionUtil.java b/src/main/java/org/gcube/portlets/user/dataminermanager/server/SessionUtil.java
index f8bc57c..0e8c561 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/server/SessionUtil.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/server/SessionUtil.java
@@ -20,7 +20,7 @@ import org.gcube.portlets.user.dataminermanager.server.smservice.SClientBuilder;
 import org.gcube.portlets.user.dataminermanager.server.smservice.SClientDirector;
 import org.gcube.portlets.user.dataminermanager.server.util.ServiceCredential;
 import org.gcube.portlets.user.dataminermanager.shared.Constants;
-import org.gcube.portlets.user.dataminermanager.shared.exception.ExpiredSessionServiceException;
+import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
 import org.gcube.portlets.user.dataminermanager.shared.exception.ServiceException;
 
 /**
@@ -51,7 +51,7 @@ public class SessionUtil {
 				aslSession.setScope(scope);
 			} else {
 				logger.info("no user found in session!");
-				throw new ExpiredSessionServiceException("Session Expired!");
+				throw new SessionExpiredServiceException("Session Expired!");
 
 			}
 		} else {
@@ -90,7 +90,7 @@ public class SessionUtil {
 
 		if(aslSession==null){
 			logger.error("ASLSession is null!");
-			throw new ExpiredSessionServiceException("Session Expired!");
+			throw new SessionExpiredServiceException("Session Expired!");
 		} 
 		SClient sClient; 
 				
diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/shared/exception/ExpiredSessionServiceException.java b/src/main/java/org/gcube/portlets/user/dataminermanager/shared/exception/SessionExpiredServiceException.java
similarity index 59%
rename from src/main/java/org/gcube/portlets/user/dataminermanager/shared/exception/ExpiredSessionServiceException.java
rename to src/main/java/org/gcube/portlets/user/dataminermanager/shared/exception/SessionExpiredServiceException.java
index 644e518..24ec0c3 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/shared/exception/ExpiredSessionServiceException.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/shared/exception/SessionExpiredServiceException.java
@@ -1,12 +1,12 @@
 package org.gcube.portlets.user.dataminermanager.shared.exception;
 
 /**
- * ASL Session Expired Exception
+ * Session Expired Service Exception
  * 
  * @author "Giancarlo Panichi"
  *
  */
-public class ExpiredSessionServiceException extends
+public class SessionExpiredServiceException extends
 		ServiceException {
 
 	private static final long serialVersionUID = -4831171355042165166L;
@@ -14,14 +14,14 @@ public class ExpiredSessionServiceException extends
 	/**
 	 * 
 	 */
-	public ExpiredSessionServiceException() {
+	public SessionExpiredServiceException() {
 		super();
 	}
 
 	/**
 	 * @param message
 	 */
-	public ExpiredSessionServiceException(String message) {
+	public SessionExpiredServiceException(String message) {
 		super(message);
 	}
 
@@ -30,7 +30,7 @@ public class ExpiredSessionServiceException extends
 	 * @param message
 	 * @param t
 	 */
-	public ExpiredSessionServiceException(String message, Throwable t) {
+	public SessionExpiredServiceException(String message, Throwable t) {
 		super(message, t);
 	}