diff --git a/src/main/java/org/gcube/portal/socialnetworking/model/output/MessageOutputBeanMixIn.java b/src/main/java/org/gcube/portal/socialnetworking/model/output/MessageOutputBeanMixIn.java
index 6d3b61b..2231113 100644
--- a/src/main/java/org/gcube/portal/socialnetworking/model/output/MessageOutputBeanMixIn.java
+++ b/src/main/java/org/gcube/portal/socialnetworking/model/output/MessageOutputBeanMixIn.java
@@ -13,7 +13,7 @@ import org.gcube.common.homelibrary.home.workspace.exceptions.WrongDestinationEx
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 /**
- * Used for serialization/deserialization of {@link  org.gcube.common.homelibrary.home.workspace.sharing.WorkspaceMessage}
+ * Used for serialization of {@link  org.gcube.common.homelibrary.home.workspace.sharing.WorkspaceMessage}
  * @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
  */
 public interface MessageOutputBeanMixIn {
@@ -35,13 +35,16 @@ public interface MessageOutputBeanMixIn {
 
 	@JsonProperty("read")
 	boolean isRead();
+	
+	@JsonProperty("attachments_ids")
+	List<String> getAttachmentsIds();
+
+	@JsonProperty("recipients")
+	List<String> getAddresses();
 
 	@JsonIgnore
 	void setStatus(boolean status) throws InternalErrorException;
 
-	@JsonProperty("attachments_ids")
-	List<String> getAttachmentsIds();
-
 	@JsonIgnore
 	List<WorkspaceItem> getAttachments() throws InternalErrorException;
 
@@ -53,9 +56,6 @@ public interface MessageOutputBeanMixIn {
 	@JsonIgnore
 	void open() throws InternalErrorException;
 
-	@JsonProperty("recipients")
-	List<String> getAddresses();
-
 	@JsonIgnore
 	List<String> getCopyAttachmentsIds();