Below is a sequence of insert, replace and remove operations on an observable list that end up being merged incorrectly into one list change when performed within one beginChange()/endChange() block. The code below even throws an IndexOutOfBoundsException because of this.

Tested with 8u20 b13.


import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import javafx.collections.ListChangeListener.Change;

import com.sun.javafx.collections.ObservableListWrapper;


public class ObservableListBaseTest<E> extends ObservableListWrapper<E> {

    public static void main(String[] args) {
        ObservableListBaseTest<Integer> wrapper = new ObservableListBaseTest<>(new ArrayList<>());
        wrapper.addAll(1, 4, 5, 6);

        wrapper.addListener((Change<? extends Integer> change) -> {
            while(change.next()) {
                System.out.println("Change:");
                System.out.println(" from = " + change.getFrom());
                System.out.println(" removed = " + change.getRemoved());
                System.out.println(" added = " + change.getAddedSubList());
            }
        });

        wrapper.beginChange();
        wrapper.addAll(1, Arrays.asList(2, 3));
        wrapper.subList(4, 6).replaceAll(i -> i + 10);
        wrapper.subList(2, 5).clear();
        wrapper.endChange();
    }

    public ObservableListBaseTest(List<E> list) {
        super(list);
    }
}