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  1. JDK
  2. JDK-8204078

TableView's selectedItems observable array incorrectly reports list changes

    Details

    • Subcomponent:
    • CPU:
      x86_64
    • OS:
      generic

      Description

      A DESCRIPTION OF THE PROBLEM :
      TableView.getSelectionModel().getSelectedItems() observable list incorrectly reports the list changes when a FilteredList is used. For example, it can report to registered listeners that 3 elements were removed while the list contained only one before the change.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      Run the attached code and you'll notice that even though the list contained only one element, after the list is cleared, it reports that 3 elements were removed.


      ---------- BEGIN SOURCE ----------
      package com.test;

      import javafx.application.Application;
      import javafx.beans.property.SimpleStringProperty;
      import javafx.collections.ListChangeListener;
      import javafx.collections.ObservableList;
      import javafx.collections.transformation.FilteredList;
      import javafx.scene.Scene;
      import javafx.scene.control.TableColumn;
      import javafx.scene.control.TableView;
      import javafx.scene.layout.BorderPane;
      import javafx.stage.Stage;

      public class Table extends Application {
      public static void main(String[] pArgs) {launch(pArgs);}

      public void start(Stage pStage) {
      final BorderPane pane = new BorderPane();
      final Scene scene = new Scene(pane);
      pStage.setScene(scene);

      TableView<String> table = new TableView<>();
      ObservableList<String> list = table.getItems();
      FilteredList<String> filteredList = new FilteredList<>(list);

      list.add("a");
      list.add("b");
      list.add("c");

      table.setItems(filteredList);

      TableColumn<String,String> col1 = new TableColumn<>();
      col1.setCellValueFactory(features -> new SimpleStringProperty(features.getValue()));

      table.getColumns().setAll(col1);

      pane.setCenter(table);
      pStage.show();

      table.getSelectionModel().select(0);

      System.out.println("Elements: ");
      for (String str: table.getSelectionModel().getSelectedItems()) {
      System.out.println(str);
      }
      System.out.println();

      table.getSelectionModel().getSelectedItems().addListener(
      (ListChangeListener.Change<? extends String> pChange) -> {
      while (pChange.next()) {
      System.out.println("Removed elements: ");
      for (String str : pChange.getRemoved()) {
      System.out.println(str);
      }
      }
      }
      );

      filteredList.setPredicate(pStr -> "a".equals(pStr));
      }
      }


      ---------- END SOURCE ----------

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            • Assignee:
              aghaisas Ajit Ghaisas
              Reporter:
              webbuggrp Webbug Group
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              Dates

              • Created:
                Updated: