diff --git a/src/main/java/org/gcube/application/geoportal/service/engine/mongo/ConcessioniMongoManager.java b/src/main/java/org/gcube/application/geoportal/service/engine/mongo/ConcessioniMongoManager.java
index f8c1e4e..1432aec 100644
--- a/src/main/java/org/gcube/application/geoportal/service/engine/mongo/ConcessioniMongoManager.java
+++ b/src/main/java/org/gcube/application/geoportal/service/engine/mongo/ConcessioniMongoManager.java
@@ -4,6 +4,7 @@ import java.io.IOException;
 import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.function.Consumer;
 
 import org.bson.Document;
 import org.bson.types.ObjectId;
@@ -105,16 +106,22 @@ public class ConcessioniMongoManager extends MongoManager{
 		return asConcessione(replace(asDocument(toReturn),collectionName));
 	}
 
+	
+	
 	public List<Concessione> list(){
 		ArrayList<Concessione> toReturn=new ArrayList<>();
-		iterate(null, collectionName).forEach((Document d)->{
-			try {
-				toReturn.add(asConcessione(d));
-			}catch(Throwable t) {
-				log.error("Unable to read Document as concessione ",t);
-				log.debug("Document was "+d.toJson());				
-			}
-		});	
+		iterate(null, collectionName).forEach(
+				new Consumer<Document>() {
+					@Override
+					public void accept(Document d) {
+						try {
+							toReturn.add(asConcessione(d));
+						}catch(Throwable t) {
+							log.error("Unable to read Document as concessione ",t);
+							log.debug("Document was "+d.toJson());				
+						}
+					}
+				});
 		return toReturn;
 	}