diff --git a/src/main/java/org/gcube/application/geoportal/service/engine/providers/AbstractScopedMap.java b/src/main/java/org/gcube/application/geoportal/service/engine/providers/AbstractScopedMap.java
index 87a2065..01151bb 100644
--- a/src/main/java/org/gcube/application/geoportal/service/engine/providers/AbstractScopedMap.java
+++ b/src/main/java/org/gcube/application/geoportal/service/engine/providers/AbstractScopedMap.java
@@ -28,16 +28,21 @@ public abstract class AbstractScopedMap<T> implements Engine<T>{
 	public T getObject() throws ConfigurationException {
 		String currentScope=ContextUtils.getCurrentScope();
 		log.debug(name+" : obtaining object for context "+currentScope);
-		scopeMap.putIfAbsent(currentScope, new TTLObject<T>(LocalDateTime.now(),retrieveObject()));
+
 		TTLObject<T> found=scopeMap.get(currentScope);
-		
+
+		if(found== null){
+			log.debug(name+" : init object for context "+currentScope);
+			return scopeMap.put(currentScope, new TTLObject<T>(LocalDateTime.now(),retrieveObject())).getTheObject();
+		}
+
 		if(TTL!=null) {
 			if(!found.getCreationTime().plus(TTL).isBefore(LocalDateTime.now())) {
 				log.debug(name+" : elapsed TTL, disposing..");
 				dispose(found.getTheObject());
 				found=scopeMap.put(currentScope, new TTLObject<T>(LocalDateTime.now(),retrieveObject()));
 			}
-		}
+		}else {log.debug(name+" : TTL is null, never disposing..");}
 		return found.getTheObject();
 	}
 	
diff --git a/src/main/java/org/gcube/application/geoportal/service/engine/providers/MongoClientProvider.java b/src/main/java/org/gcube/application/geoportal/service/engine/providers/MongoClientProvider.java
index 11f1dc7..a8d15d5 100644
--- a/src/main/java/org/gcube/application/geoportal/service/engine/providers/MongoClientProvider.java
+++ b/src/main/java/org/gcube/application/geoportal/service/engine/providers/MongoClientProvider.java
@@ -8,13 +8,14 @@ import lombok.extern.slf4j.Slf4j;
 import org.gcube.application.geoportal.service.engine.ImplementationProvider;
 import org.gcube.application.geoportal.service.model.internal.db.MongoConnection;
 import org.gcube.application.geoportal.service.model.internal.faults.ConfigurationException;
+
 @Slf4j
 public class MongoClientProvider extends AbstractScopedMap<MongoClient>{
 
 	public MongoClientProvider() {
 		super("MongoClient cache");
 		
-//		setTTL(Duration.of(10,ChronoUnit.MINUTES));
+//		setTTL(Duration.of(10, ChronoUnit.MINUTES));
 	}
 
 	@Override