diff --git a/cms-plugin-framework/src/main/java/org/gcube/application/cms/plugins/events/ItemObserved.java b/cms-plugin-framework/src/main/java/org/gcube/application/cms/plugins/events/ItemObserved.java
index 74530e3..4ff8c13 100644
--- a/cms-plugin-framework/src/main/java/org/gcube/application/cms/plugins/events/ItemObserved.java
+++ b/cms-plugin-framework/src/main/java/org/gcube/application/cms/plugins/events/ItemObserved.java
@@ -24,12 +24,13 @@ import lombok.extern.slf4j.Slf4j;
 @Slf4j
 @ToString
 public class ItemObserved<T extends Project> implements ItemObservable {
-	User userCaller;
-	Context context;
-	UseCaseDescriptor useCaseDescriptor;
-	T project;
-	EventManager.Event event;
-	Document optional;
+	
+	private User userCaller;
+	private Context context;
+	private UseCaseDescriptor useCaseDescriptor;
+	private T project;
+	private EventManager.Event event;
+	private Document optional;
 
 	public String getProjectId() {
 		log.debug("Called getProjectId");