diff --git a/.classpath b/.classpath
index 1aba837..d1227cc 100644
--- a/.classpath
+++ b/.classpath
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="src" output="target/workspace-explorer-app-1.2.0-SNAPSHOT/WEB-INF/classes" path="src/main/java">
+	<classpathentry kind="src" output="target/workspace-explorer-app-1.3.0-SNAPSHOT/WEB-INF/classes" path="src/main/java">
 		<attributes>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry excluding="**" kind="src" output="target/workspace-explorer-app-1.2.0-SNAPSHOT/WEB-INF/classes" path="src/main/resources">
+	<classpathentry excluding="**" kind="src" output="target/workspace-explorer-app-1.3.0-SNAPSHOT/WEB-INF/classes" path="src/main/resources">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
@@ -15,9 +15,15 @@
 		<attributes>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="src" path="src/test/resources"/>
 	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
@@ -29,5 +35,5 @@
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="output" path="target/workspace-explorer-app-1.2.0-SNAPSHOT/WEB-INF/classes"/>
+	<classpathentry kind="output" path="target/workspace-explorer-app-1.3.0-SNAPSHOT/WEB-INF/classes"/>
 </classpath>
diff --git a/.project b/.project
index 53daee5..71c7808 100644
--- a/.project
+++ b/.project
@@ -35,6 +35,16 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>com.gwtplugins.gdt.eclipse.core.webAppProjectValidator</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.gwtplugins.gwt.eclipse.core.gwtProjectValidator</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.jem.workbench.JavaEMFNature</nature>
@@ -43,5 +53,6 @@
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
 		<nature>com.google.gwt.eclipse.core.gwtNature</nature>
+		<nature>com.gwtplugins.gwt.eclipse.core.gwtNature</nature>
 	</natures>
 </projectDescription>
diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
index b257af7..43c8195 100644
--- a/.settings/org.eclipse.jdt.core.prefs
+++ b/.settings/org.eclipse.jdt.core.prefs
@@ -3,6 +3,9 @@ org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
 org.eclipse.jdt.core.compiler.compliance=1.7
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
+org.eclipse.jdt.core.compiler.release=disabled
 org.eclipse.jdt.core.compiler.source=1.7
diff --git a/.settings/org.eclipse.wst.common.component b/.settings/org.eclipse.wst.common.component
index 4a23539..54f093c 100644
--- a/.settings/org.eclipse.wst.common.component
+++ b/.settings/org.eclipse.wst.common.component
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?><project-modules id="moduleCoreId" project-version="1.5.0">
-    <wb-module deploy-name="workspace-explorer-app">
+    <wb-module deploy-name="workspace-explorer-app-1.3.0-SNAPSHOT">
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/java"/>
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/resources"/>
         <wb-resource deploy-path="/" source-path="/target/m2e-wtp/web-resources"/>
diff --git a/src/main/java/org/gcube/portlets/user/workspaceexplorerapp/server/WorkspaceExplorerAppServiceImpl.java b/src/main/java/org/gcube/portlets/user/workspaceexplorerapp/server/WorkspaceExplorerAppServiceImpl.java
index 5734e33..7d2eadb 100644
--- a/src/main/java/org/gcube/portlets/user/workspaceexplorerapp/server/WorkspaceExplorerAppServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/workspaceexplorerapp/server/WorkspaceExplorerAppServiceImpl.java
@@ -73,7 +73,7 @@ public class WorkspaceExplorerAppServiceImpl extends RemoteServiceServlet implem
 	 */
 	@Override
 	public Item getRoot(List<ItemType> showableTypes, boolean purgeEmpyFolders, FilterCriteria filterCriteria) throws WorkspaceNavigatorServiceException {
-		logger.trace("getRoot showableTypes: "+showableTypes+" purgeEmpyFolders: "+purgeEmpyFolders+" filterCriteria: "+ filterCriteria);
+		logger.debug("getRoot showableTypes: "+showableTypes+" purgeEmpyFolders: "+purgeEmpyFolders+" filterCriteria: "+ filterCriteria);
 
 		try {
 
@@ -132,7 +132,7 @@ public class WorkspaceExplorerAppServiceImpl extends RemoteServiceServlet implem
 	 */
 	@Override
 	public Item getFolder(Item item, List<ItemType> showableTypes, boolean purgeEmpyFolders, FilterCriteria filterCriteria) throws WorkspaceNavigatorServiceException {
-		logger.trace("getFolder item: "+item+" showableTypes: "+showableTypes+" purgeEmpyFolders: "+purgeEmpyFolders+" filterCriteria: "+filterCriteria);
+		logger.debug("getFolder item: "+item+" showableTypes: "+showableTypes+" purgeEmpyFolders: "+purgeEmpyFolders+" filterCriteria: "+filterCriteria);
 
 		WorkspaceItem workspaceItem = null;
 		Workspace workspace = null;