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  1. JDK
  2. JDK-8144501

TreeTableView's selectedItems reports include null items.

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 8u66
    • Fix Version/s: 9
    • Component/s: javafx
    • Labels:
    • Subcomponent:
    • Introduced In Version:
    • CPU:
      x86_64
    • OS:
      windows_7

      Backports

        Description

        FULL PRODUCT VERSION :
        java version "1.8.0_66"
        Java(TM) SE Runtime Environment (build 1.8.0_66-b18)
        Java HotSpot(TM) 64-Bit Server VM (build 25.66-b18, mixed mode)

        ADDITIONAL OS VERSION INFORMATION :
        Microsoft Windows [Version 6.1.7601]

        A DESCRIPTION OF THE PROBLEM :
        TreeTableView's selectedItems reports include null items if deselect one item with "Ctrl".

        STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
        Steps to reproduce:

        1. Run the below example.
        2. Press "Ctrl"
        3. Click on "Item 2"

        EXPECTED VERSUS ACTUAL BEHAVIOR :
        EXPECTED -
        Method javafx.collections.ListChangeListener.Change.getList() must return selected items.
        ACTUAL -
        Method javafx.collections.ListChangeListener.Change.getList() returned list with null item:

        Console:
        1 > [null]
        2 > [TreeItem [ value: Item 3 ]]

        REPRODUCIBILITY :
        This bug can be reproduced always.

        ---------- BEGIN SOURCE ----------
        public class Main extends Application {

        @Override
        public void start(Stage primaryStage) throws Exception {

        TreeTableView<String> treeTable = new TreeTableView<>(new TreeItem<String>("Root"));
        treeTable.getRoot().setExpanded(true);
        treeTable.getRoot().getChildren().add(new TreeItem<String>("Item 1"));
        treeTable.getRoot().getChildren().add(new TreeItem<String>("Item 2"));
        treeTable.getRoot().getChildren().add(new TreeItem<String>("Item 3"));
        treeTable.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
        treeTable.getSelectionModel().select(2);
        treeTable.getSelectionModel().select(3);

        TreeTableColumn<String, String> column = new TreeTableColumn<>("Text");
        column.setPrefWidth(150);
        column.setCellValueFactory(
        (CellDataFeatures<String, String> p) -> new ReadOnlyStringWrapper(p.getValue().getValue()));
        treeTable.getColumns().add(column);

        treeTable.getSelectionModel().getSelectedItems().addListener(new ListChangeListener<TreeItem<String>>() {

        @Override
        public void onChanged(javafx.collections.ListChangeListener.Change<? extends TreeItem<String>> change) {

        System.out.println("1 > " + change.getList());
        System.out.println("2 > " + change.getList());
        }

        });

        primaryStage.setScene(new Scene(new VBox(treeTable)));
        primaryStage.show();
        }

        public static void main(String[] args) {
        launch(args);
        }
        }
        ---------- END SOURCE ----------

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                Assignee:
                jgiles Jonathan Giles
                Reporter:
                webbuggrp Webbug Group
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                  Created:
                  Updated:
                  Resolved: