diff --git a/pom.xml b/pom.xml
index 391eeba..c05d563 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
 
 	<groupId>org.gcube.portlets.user</groupId>
 	<artifactId>workspace-tree-widget</artifactId>
-	<version>6.2.0-SNAPSHOT</version>
+	<version>6.3.0-SNAPSHOT</version>
 	<name>gCube Workspace Tree Widget</name>
 	<description>
 		gCube Workspace Tree Widget.
@@ -84,33 +84,21 @@
 			<version>[1.6.0-SNAPSHOT, 2.0.0-SNAPSHOT)</version>
 			<scope>provided</scope>
 		</dependency>
+
+		<!-- HOME LIBRARY -->
 		<dependency>
 			<groupId>org.gcube.portlets.user</groupId>
 			<artifactId>home-library</artifactId>
-			<version>[4.3.0-SNAPSHOT, 4.6.0-SNAPSHOT)</version>
+			<version>[4.3.0-SNAPSHOT, 5.0.0-SNAPSHOT)</version>
 			<scope>provided</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.gcube.portlets.user</groupId>
 			<artifactId>home-library-jcr</artifactId>
-			<version>[1.3.0-SNAPSHOT, 1.6.0-SNAPSHOT)</version>
+			<version>[1.3.0-SNAPSHOT, 2.0.0-SNAPSHOT)</version>
 			<scope>provided</scope>
 		</dependency>
-		
-<!-- 		USE THIS FOR RELEASE -->
-<!-- 		<dependency> -->
-<!-- 			<groupId>org.gcube.portlets.user</groupId> -->
-<!-- 			<artifactId>home-library</artifactId> -->
-<!-- 			<version>[4.3.0-SNAPSHOT, 5.0.0-SNAPSHOT)</version> -->
-<!-- 			<scope>provided</scope> -->
-<!-- 		</dependency> -->
-<!-- 		<dependency> -->
-<!-- 			<groupId>org.gcube.portlets.user</groupId> -->
-<!-- 			<artifactId>home-library-jcr</artifactId> -->
-<!-- 			<version>[1.3.0-SNAPSHOT, 2.0.0-SNAPSHOT)</version> -->
-<!-- 			<scope>provided</scope> -->
-<!-- 		</dependency> -->
-		
+
 		<dependency>
 			<groupId>commons-fileupload</groupId>
 			<artifactId>commons-fileupload</artifactId>
@@ -166,7 +154,22 @@
 			<version>[1.0.0-SNAPSHOT, 2.0.0-SNAPSHOT)</version>
 			<scope>provided</scope>
 		</dependency>
-		
+
+		<!-- JSON PARSER -->
+		<dependency>
+			<groupId>org.json</groupId>
+			<artifactId>json</artifactId>
+			<version>20090211</version>
+		</dependency>
+
+		<!-- URI RESOLVER -->
+		<!-- <dependency> -->
+		<!-- <groupId>org.gcube.data.transfer</groupId> -->
+		<!-- <artifactId>uri-resolver</artifactId> -->
+		<!-- <version>1.0.0-SNAPSHOT</version> -->
+		<!-- <type>war</type> -->
+		<!-- </dependency> -->
+
 	</dependencies>
 	<build>
 		<resources>
diff --git a/src/main/java/org/gcube/portlets/user/workspace/client/util/RequestBuilderWorkspaceValidateItem.java b/src/main/java/org/gcube/portlets/user/workspace/client/util/RequestBuilderWorkspaceValidateItem.java
index 43cff58..33d6e1b 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/client/util/RequestBuilderWorkspaceValidateItem.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/client/util/RequestBuilderWorkspaceValidateItem.java
@@ -7,6 +7,7 @@ import org.gcube.portlets.user.workspace.client.ConstantsExplorer;
 import org.gcube.portlets.user.workspace.client.view.windows.InfoDisplayMessage;
 import org.gcube.portlets.user.workspace.client.view.windows.MessageBoxAlert;
 
+import com.google.gwt.core.client.GWT;
 import com.google.gwt.http.client.Request;
 import com.google.gwt.http.client.RequestBuilder;
 import com.google.gwt.http.client.RequestCallback;
@@ -56,11 +57,15 @@ public class RequestBuilderWorkspaceValidateItem {
 		else
 			parameters +="&"+ConstantsExplorer.VALIDATEITEM+"=true";
 		
-		RequestBuilder requestBuilder = new RequestBuilder(method, servletName+"?"+parameters);
+		String urlRequest = servletName+"?"+parameters;
+		
+		GWT.log("request builder for: "+urlRequest);
+		
+		RequestBuilder requestBuilder = new RequestBuilder(method, urlRequest);
 		new InfoDisplayMessage("Download", "Requesting...", TIME_INFO_DISPLAY);
 		try {
 			
-			requestBuilder.sendRequest(params, new RequestCallback() {
+			requestBuilder.sendRequest("", new RequestCallback() {
 
 			    @Override
 			    public void onResponseReceived(Request request,  Response response) {
diff --git a/src/main/java/org/gcube/portlets/user/workspace/server/shortener/UrlShortener.java b/src/main/java/org/gcube/portlets/user/workspace/server/shortener/UrlShortener.java
index 7758028..5d9927a 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/server/shortener/UrlShortener.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/server/shortener/UrlShortener.java
@@ -93,9 +93,7 @@ public final class UrlShortener {
 		   	
 	         //ACTIVE THIS AFTER RELEASE
             if(paramKeyValue!=null && !paramKeyValue.isEmpty()){
-            	getParam = "?"+KEY +"="+paramKeyValue;
-//            	getParam = "?"+KEY +"=AIzaSyDfMO0VY3o8GjRUqnTfqScjm_EsFEuBa3g";
-            	
+            	getParam = "?"+KEY +"="+paramKeyValue;	
             }
             
 		    uriRequest  = shortnerServerUrl+getParam;
@@ -103,7 +101,7 @@ public final class UrlShortener {
 		    logger.trace("HTTP-URL-Shortener found, uriRequest: "+uriRequest);
 		    
 		    //DEBUG
-		    System.out.println("HTTP-URL-Shortener found, uriRequest: "+uriRequest);
+//		    System.out.println("HTTP-URL-Shortener found, uriRequest: "+uriRequest);
 		    
 		    isAvailable = true;