diff --git a/pom.xml b/pom.xml
index cd41d00..a940ef0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,7 +12,7 @@
 
 	<groupId>org.gcube.common</groupId>
 	<artifactId>storagehub-client-library</artifactId>
-	<version>1.0.6-SNAPSHOT</version>
+	<version>1.0.7-SNAPSHOT</version>
 	<name>storagehub-client-library</name>
 
 	<dependencyManagement>
diff --git a/src/main/java/org/gcube/common/storagehub/client/proxies/DefaultItemManager.java b/src/main/java/org/gcube/common/storagehub/client/proxies/DefaultItemManager.java
index 7d3f7d1..a475ac6 100644
--- a/src/main/java/org/gcube/common/storagehub/client/proxies/DefaultItemManager.java
+++ b/src/main/java/org/gcube/common/storagehub/client/proxies/DefaultItemManager.java
@@ -550,15 +550,15 @@ public class DefaultItemManager implements ItemManagerClient {
 
 				GXInboundResponse response =null;
 				FormDataMultiPart multipart = new FormDataMultiPart();
-				
+
 				multipart.field("name", fileName);
 				multipart.field("description", description);
 				multipart.field("file", stream, MediaType.APPLICATION_OCTET_STREAM_TYPE);
-				
+
 				Entity<FormDataMultiPart> entity = Entity.entity(multipart, MediaType.MULTIPART_FORM_DATA);
-				
+
 				response = myManager.post(entity);
-				
+
 				if (response.isErrorResponse()) {
 					if (response.hasException()) {
 						throw response.getException();
@@ -675,8 +675,8 @@ public class DefaultItemManager implements ItemManagerClient {
 			throw new RuntimeException(e1);
 		}
 	}
-	
-	
+
+
 	@Override
 	public String createURL(String parentId, String name, String description,URL url) throws StorageHubException {
 		Call<GXWebTargetAdapterRequest, String> call = new Call<GXWebTargetAdapterRequest, String>() {
@@ -831,20 +831,20 @@ public class DefaultItemManager implements ItemManagerClient {
 	public void delete(String id) throws StorageHubException {
 		delete(id, false);
 	}
-	
+
 	@Override
 	public void delete(String id, boolean force) throws StorageHubException {
 		Call<GXWebTargetAdapterRequest, Void> call = new Call<GXWebTargetAdapterRequest, Void>() {
 			@Override
 			public Void call(GXWebTargetAdapterRequest manager) throws Exception {
 				Objects.requireNonNull(id, "id cannot be null");
-				
+
 				HashMap<String, Object[]> queryParam = new HashMap<String, Object[]>();
 				queryParam.put("force", new Object[] {force});
-				
+
 				GXWebTargetAdapterRequest myManager = manager.path(id);
 				GXInboundResponse response = myManager.queryParams(queryParam).delete();
-				
+
 				if (response.isErrorResponse()) {
 					if (response.hasException()) 
 						throw response.getException();
@@ -929,30 +929,30 @@ public class DefaultItemManager implements ItemManagerClient {
 		}
 	}
 
-	
-	
+
+
 	@Override
 	public boolean canWriteInto(String id) throws StorageHubException {
 		Call<GXWebTargetAdapterRequest, Boolean> call = new Call<GXWebTargetAdapterRequest, Boolean>() {
 			@Override
 			public Boolean call(GXWebTargetAdapterRequest manager) throws Exception {
 				Objects.requireNonNull(id, "id cannot be null");
-				
+
 				GXWebTargetAdapterRequest myManager = manager.path(id).path("acls").path("write");
-				
-				
+
+
 				GXInboundResponse response = myManager.get();
-				
+
 				if (response.isErrorResponse()) {
 					if (response.hasException()) 
 						throw response.getException();
 					else 
 						throw new BackendGenericError();
 				}
-				
-				
+
+
 				return response.getSource().readEntity(Boolean.class);
-				
+
 
 			}
 		};
@@ -964,9 +964,9 @@ public class DefaultItemManager implements ItemManagerClient {
 			throw new RuntimeException(e1);
 		}
 	}
-	
-	
-	
+
+
+
 	@Override
 	public String changeACL(String id, String user, AccessType accessType) throws StorageHubException {
 		Call<GXWebTargetAdapterRequest, String> call = new Call<GXWebTargetAdapterRequest, String>() {
@@ -974,10 +974,10 @@ public class DefaultItemManager implements ItemManagerClient {
 			public String call(GXWebTargetAdapterRequest manager) throws Exception {
 				Objects.requireNonNull(id, "id cannot be null");
 				Objects.requireNonNull(user, "user cannot be null");
-				
-				
+
+
 				GXWebTargetAdapterRequest myManager = manager.path(id).path("acls");
-				
+
 				try (FormDataMultiPart multipart = new FormDataMultiPart()){
 					multipart.field("access", accessType, MediaType.APPLICATION_JSON_TYPE);
 					multipart.field("user", user);
@@ -1005,6 +1005,44 @@ public class DefaultItemManager implements ItemManagerClient {
 		}
 	}
 
+
+
+	@Override
+	public String removeSharedFolderAdmin(String id, String user) throws StorageHubException {
+		Call<GXWebTargetAdapterRequest, String> call = new Call<GXWebTargetAdapterRequest, String>() {
+			@Override
+			public String call(GXWebTargetAdapterRequest manager) throws Exception {
+				Objects.requireNonNull(id, "id cannot be null");
+				Objects.requireNonNull(user, "user cannot be null");
+
+
+				GXWebTargetAdapterRequest myManager = manager.path(id).path("acls").path(user);
+
+
+				GXInboundResponse response = myManager.delete();
+
+
+				if (response.isErrorResponse()) {
+					if (response.hasException()) 
+						throw response.getException();
+					else 
+						throw new BackendGenericError();
+				}
+
+				return response.getSource().readEntity(String.class);
+
+			}
+		};
+		try {
+			return delegate.make(call);
+		}catch(StorageHubException e) {
+			throw e;
+		}catch(Exception e1) {
+			throw new RuntimeException(e1);
+		}
+	}
+
+
 	@Override
 	public String copy(String id, String destinationFolderId, String newFilename) throws StorageHubException {
 		Call<GXWebTargetAdapterRequest, String> call = new Call<GXWebTargetAdapterRequest, String>() {
@@ -1043,16 +1081,16 @@ public class DefaultItemManager implements ItemManagerClient {
 		}
 	}
 
-	
-	
-	
+
+
+
 	@Override
 	public String setPublic(String id, boolean publish) throws StorageHubException {
 		Call<GXWebTargetAdapterRequest, String> call = new Call<GXWebTargetAdapterRequest, String>() {
 			@Override
 			public String call(GXWebTargetAdapterRequest manager) throws Exception {
 				Objects.requireNonNull(id, "id cannot be null");
-				
+
 				GXWebTargetAdapterRequest myManager = manager.path(id)
 						.path("publish");
 
diff --git a/src/main/java/org/gcube/common/storagehub/client/proxies/ItemManagerClient.java b/src/main/java/org/gcube/common/storagehub/client/proxies/ItemManagerClient.java
index 4a55db0..4aa1592 100644
--- a/src/main/java/org/gcube/common/storagehub/client/proxies/ItemManagerClient.java
+++ b/src/main/java/org/gcube/common/storagehub/client/proxies/ItemManagerClient.java
@@ -48,6 +48,8 @@ public interface ItemManagerClient {
 	List<ACL> getACL(String id) throws StorageHubException;
 	
 	String changeACL(String id, String user, AccessType accessType) throws StorageHubException;
+	
+	String removeSharedFolderAdmin(String id, String user) throws StorageHubException;
 
 	@Deprecated
 	void delete(String id) throws StorageHubException;
diff --git a/src/test/java/org/gcube/data/access/fs/Items.java b/src/test/java/org/gcube/data/access/fs/Items.java
index d90ab20..bea887c 100644
--- a/src/test/java/org/gcube/data/access/fs/Items.java
+++ b/src/test/java/org/gcube/data/access/fs/Items.java
@@ -30,8 +30,8 @@ public class Items {
 
 	@BeforeClass
 	public static void setUp(){
-		SecurityTokenProvider.instance.set("b7c80297-e4ed-42ab-ab42-fdc0b8b0eabf-98187548");
-		ScopeProvider.instance.set("/gcube");
+		SecurityTokenProvider.instance.set("257800d8-24bf-4bae-83cd-ea99369e7dd6-843339462");
+		ScopeProvider.instance.set("/d4science.research-infrastructures.eu");
 	}
 		
 	
@@ -110,8 +110,8 @@ public class Items {
 		StorageHubClient shc = new StorageHubClient();
 		
 		FileContainer file = null;
-		try(InputStream is = new FileInputStream(new File("/home/lucio/Downloads/PortletTesting.xlsx"))){
-			file = shc.open("1672d620-543e-4c76-b0af-4c46f52cbc82").asFolder().uploadFile(is, "PortletTestingSenzaExt", "graphs");
+		try(InputStream is = new FileInputStream(new File("/home/lucio/Downloads/.richiesta speroni.pdf"))){
+			file = shc.getWSRoot().uploadFile(is, ".richiesta speroni.pdf", "test");
 		}