diff --git a/src/main/java/org/gcube/data/access/storagehub/services/ItemSharing.java b/src/main/java/org/gcube/data/access/storagehub/services/ItemSharing.java
index ac39670..b33103a 100644
--- a/src/main/java/org/gcube/data/access/storagehub/services/ItemSharing.java
+++ b/src/main/java/org/gcube/data/access/storagehub/services/ItemSharing.java
@@ -1,7 +1,6 @@
 package org.gcube.data.access.storagehub.services;
 
 import java.util.HashMap;
-import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
 
diff --git a/src/main/java/org/gcube/data/access/storagehub/services/WorkspaceManager.java b/src/main/java/org/gcube/data/access/storagehub/services/WorkspaceManager.java
index c5d0a2d..0e867df 100644
--- a/src/main/java/org/gcube/data/access/storagehub/services/WorkspaceManager.java
+++ b/src/main/java/org/gcube/data/access/storagehub/services/WorkspaceManager.java
@@ -26,6 +26,7 @@ import javax.ws.rs.QueryParam;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 
+import org.gcube.com.fasterxml.jackson.databind.ObjectMapper;
 import org.gcube.common.authorization.library.provider.AuthorizationProvider;
 import org.gcube.common.gxrest.response.outbound.GXOutboundErrorResponse;
 import org.gcube.common.storagehub.model.Excludes;
@@ -61,7 +62,6 @@ import org.gcube.smartgears.utils.InnerMethodName;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
 
 
 @Path("")