diff --git a/.project b/.project
index fe501a7..232aee2 100644
--- a/.project
+++ b/.project
@@ -16,12 +16,12 @@
 			</arguments>
 		</buildCommand>
 		<buildCommand>
-			<name>org.eclipse.m2e.core.maven2Builder</name>
+			<name>org.eclipse.wst.validation.validationbuilder</name>
 			<arguments>
 			</arguments>
 		</buildCommand>
 		<buildCommand>
-			<name>org.eclipse.wst.validation.validationbuilder</name>
+			<name>org.eclipse.m2e.core.maven2Builder</name>
 			<arguments>
 			</arguments>
 		</buildCommand>
diff --git a/.settings/org.eclipse.wst.validation.prefs b/.settings/org.eclipse.wst.validation.prefs
new file mode 100644
index 0000000..04cad8c
--- /dev/null
+++ b/.settings/org.eclipse.wst.validation.prefs
@@ -0,0 +1,2 @@
+disabled=06target
+eclipse.preferences.version=1
diff --git a/pom.xml b/pom.xml
index 00b2c15..637a726 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
 	</parent>
 	<groupId>org.gcube.portal</groupId>
 	<artifactId>landing-page-library</artifactId>
-	<version>1.0.0-SNAPSHOT</version>
+	<version>1.1.0-SNAPSHOT</version>
 	<packaging>jar</packaging>
 
 	<name>landing-page-library</name>
@@ -30,6 +30,11 @@
 		</dependencies>
 	</dependencyManagement>
 	<dependencies>
+		<dependency>
+			<groupId>org.gcube.dvos</groupId>
+			<artifactId>usermanagement-core</artifactId>
+			<scope>provided</scope>
+		</dependency>
 		<dependency>
 			<groupId>org.gcube.common.portal</groupId>
 			<artifactId>portal-manager</artifactId>
diff --git a/src/main/java/org/gcube/portal/landingpage/LandingPageManager.java b/src/main/java/org/gcube/portal/landingpage/LandingPageManager.java
index 8846e47..37b28db 100644
--- a/src/main/java/org/gcube/portal/landingpage/LandingPageManager.java
+++ b/src/main/java/org/gcube/portal/landingpage/LandingPageManager.java
@@ -7,6 +7,8 @@ import javax.servlet.http.HttpServletRequest;
 
 import org.gcube.common.portal.PortalContext;
 import org.gcube.portal.notifications.thread.NewUserSiteRegistrationNotificationThread;
+import org.gcube.vomanagement.usermanagement.impl.LiferayRoleManager;
+import org.gcube.vomanagement.usermanagement.impl.LiferayUserManager;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -98,7 +100,7 @@ public class LandingPageManager {
 	private static void registerUserToSite(User user, Group site, String siteURL) throws SystemException {
 		UserLocalServiceUtil.addGroupUser(site.getGroupId(), user.getUserId());
 		_log.debug("User " +  user.getScreenName() +" registered to " + site.getName());
-		Thread emailSiteManagersThread = new Thread(new NewUserSiteRegistrationNotificationThread(user, site, siteURL));
+		Thread emailSiteManagersThread = new Thread(new NewUserSiteRegistrationNotificationThread(new LiferayUserManager(), new LiferayRoleManager() ,user, site, siteURL));
 		emailSiteManagersThread.start();
 	}