modules/graphics/src/main/java/javafx/stage/Stage.java

@@ -552,14 +552,13 @@
 
         if (isPrimary()) {
             throw new IllegalStateException("Cannot set owner for the primary stage");
         }
 
-        this.owner = owner;
-        
         final Scene sceneValue = getScene();
         if (sceneValue != null) {
+            this.owner = owner;
             SceneHelper.parentEffectiveOrientationInvalidated(sceneValue);
         }
     }
 
     /**