Avoid send null messages

integratedmodelling · Jan 29, 2024 · a47422f · a47422f
1 parent acb4e0a
commit a47422f
Showing 1 changed file with 11 additions and 6 deletions.
diff --git a/...ne/src/main/java/org/integratedmodelling/klab/components/runtime/actors/ViewBehavior.java b/...ne/src/main/java/org/integratedmodelling/klab/components/runtime/actors/ViewBehavior.java
@@ -150,13 +150,18 @@ public void onMessage(KlabMessage message, IKActorsBehavior.Scope scope) {
                     action = new ViewAction(this.component = copyComponent(this.initializedComponent));
                     break;
                 default:
-                    action = new ViewAction(this.component = setComponent(mess, scope));
+                	ViewComponent ret = setComponent(mess, scope);
+                	if (ret != null) {
+                		action = new ViewAction(this.component = setComponent(mess, scope));
+                	}
+                }
+                if (action != null) {
+                	action.setApplicationId(mess.getAppId());
+                    action.setData(getMetadata(mess.getArguments(), scope));
+                    action.setComponentTag(this.getName());
+                    session.getState().updateView(this.component);
+                    session.getMonitor().send(IMessage.MessageClass.ViewActor, IMessage.Type.ViewAction, action);
                 }
-                action.setApplicationId(mess.getAppId());
-                action.setData(getMetadata(mess.getArguments(), scope));
-                action.setComponentTag(this.getName());
-                session.getState().updateView(this.component);
-                session.getMonitor().send(IMessage.MessageClass.ViewActor, IMessage.Type.ViewAction, action);
             }
         }