diff --git a/src/main/java/org/gcube/portlets/user/workspace/server/util/WorkspaceEventCollector.java b/src/main/java/org/gcube/portlets/user/workspace/server/util/WorkspaceEventCollector.java
index bd03306..823d57e 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/server/util/WorkspaceEventCollector.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/server/util/WorkspaceEventCollector.java
@@ -16,15 +16,14 @@ import org.gcube.common.homelibrary.home.workspace.events.WorkspaceListener;
  */
 public class WorkspaceEventCollector implements WorkspaceListener {
 	
-	protected Logger logger;
+	protected static Logger logger = Logger.getLogger(WorkspaceEventCollector.class);
 	
 	protected BlockingQueue<WorkspaceEvent> eventsQueue = new LinkedBlockingQueue<WorkspaceEvent>();
 
 	/**
 	 * @param logger
 	 */
-	public WorkspaceEventCollector(Logger logger) {
-		this.logger = logger;
+	public WorkspaceEventCollector() {
 	}
 
 	/**
diff --git a/src/main/java/org/gcube/portlets/user/workspace/server/util/WsUtil.java b/src/main/java/org/gcube/portlets/user/workspace/server/util/WsUtil.java
index 4d3892b..6e4e8d3 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/server/util/WsUtil.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/server/util/WsUtil.java
@@ -170,6 +170,7 @@ public class WsUtil {
 		
 		Workspace workspace = HomeLibrary.getUserWorkspace(session.getUsername());
 
+		/*
 		if (session.getAttribute(METADATACONVERTER_ATTRIBUTE) == null){
 
 			logger.trace("Initializing the Metadata converter");
@@ -196,10 +197,11 @@ public class WsUtil {
 			logger.trace("Initializing the event collector");
 
 			//we prepare the event collector
-			WorkspaceEventCollector eventCollector = new WorkspaceEventCollector(logger);
+			WorkspaceEventCollector eventCollector = new WorkspaceEventCollector();
 			workspace.addWorkspaceListener(eventCollector);
 			session.setAttribute(WORKSPACE_EVENT_COLLECTOR_ATTRIBUTE, eventCollector);
 		}
+		*/
 		
 		if (session.getAttribute(WORKSPACEBUILDER_ATTRIBUTE) == null)
 		{
@@ -218,29 +220,29 @@ public class WsUtil {
 	}
 
 
-	public static MetadataConverter getMetadataConverter(Logger logger, HttpSession httpSession)
-	{
-		MetadataConverter mc = (MetadataConverter) httpSession.getAttribute(METADATACONVERTER_ATTRIBUTE);
+//	public static MetadataConverter getMetadataConverter(Logger logger, HttpSession httpSession)
+//	{
+//		MetadataConverter mc = (MetadataConverter) httpSession.getAttribute(METADATACONVERTER_ATTRIBUTE);
+//
+//		if (mc==null)
+//		{
+//
+//			mc = new MetadataConverter(logger);
+//			ASLSession session = getAslSession(httpSession);
+//			mc.setup(session);
+//			session.setAttribute(METADATACONVERTER_ATTRIBUTE, mc);
+//		}
+//
+//		mc.isReady();
+//
+//		return mc;
+//	}
 
-		if (mc==null)
-		{
-
-			mc = new MetadataConverter(logger);
-			ASLSession session = getAslSession(httpSession);
-			mc.setup(session);
-			session.setAttribute(METADATACONVERTER_ATTRIBUTE, mc);
-		}
-
-		mc.isReady();
-
-		return mc;
-	}
-
-	public static WorkspaceEventCollector getEventCollector(HttpSession httpSession)
-	{
-		ASLSession session = getAslSession(httpSession);
-		return (WorkspaceEventCollector) session.getAttribute(WsUtil.WORKSPACE_EVENT_COLLECTOR_ATTRIBUTE);
-	}
+//	public static WorkspaceEventCollector getEventCollector(HttpSession httpSession)
+//	{
+//		ASLSession session = getAslSession(httpSession);
+//		return (WorkspaceEventCollector) session.getAttribute(WsUtil.WORKSPACE_EVENT_COLLECTOR_ATTRIBUTE);
+//	}
 
 	public static GWTWorkspaceBuilder getGWTWorkspaceBuilder(HttpSession httpSession)
 	{