Run code to reproduce. There are a lot of unexpected invocations

 @Override
    public void start(Stage primaryStage) {
        
        StackPane root = new StackPane();
        ListView list = new ListView();
        list.setCellFactory(new Callback<ListView, ListCell>() {
            @Override
            public ListCell call(final ListView param) {
                return new ListCell() {

                    @Override
                    protected void updateItem(Object item, boolean empty) {
                        super.updateItem(item, empty);
                        System.out.println("Update item invoked " + getIndex());
                    }
                };
            }
        });
        root.getChildren().addAll(list);
        
        Scene scene = new Scene(root, 300, 250);
        
        primaryStage.setScene(scene);
        primaryStage.show();
    }


////output
Update item invoked -1
Update item invoked 0
Update item invoked 0
Update item invoked -1
Update item invoked -1
Update item invoked -1
Update item invoked 0
Update item invoked 0
Update item invoked -1
Update item invoked 1
Update item invoked 1
Update item invoked -1
Update item invoked 2
Update item invoked 2
Update item invoked -1
Update item invoked 3
Update item invoked 3
Update item invoked -1
Update item invoked 4
Update item invoked 4
Update item invoked -1
Update item invoked 5
Update item invoked 5
Update item invoked -1
Update item invoked 6
Update item invoked 6
Update item invoked -1
Update item invoked 7
Update item invoked 7
Update item invoked -1
Update item invoked 8
Update item invoked 8
Update item invoked -1
Update item invoked 9
Update item invoked 9
Update item invoked -1
Update item invoked 10
Update item invoked 10