Error "this.selectedItem is undefined" when add new items to ChosenListBox and update it

[conargon]

I'm testing the new ChosenListBox release 3.0. When I add new items dinamically or when I set some items as selected, I get the exception this.selectedItem is undefined.

Test code:

    public void onModuleLoad() {
        final Button testButton = new Button("Test");

        final ChosenListBox chosen = new ChosenListBox(true);
        chosen.setWidth("100%");
        chosen.addItem("uno");
        chosen.addItem("dos");
        chosen.addItem("tres");

        RootPanel.get("chosenContainer").add(chosen);
        RootPanel.get("sendButtonContainer").add(testButton);

        testButton.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                chosen.addItem("cuatro");
                chosen.addItem("cinco");
                chosen.addItem("seis");
                chosen.update();
//              chosen.setItemSelected(0, true);
            }
        });
    }

I debugged the Java source and I saw the GQuery selectedItem private attribute of ChosenImpl class is never initialized when the ChosenListBox is multivalue.This is, the method initSearchElement, where the attribute selectedItem is initialized, is never called in this case.

The problem is that the method update() of ChosenListBox class fires events, and the handler vents references to selectedItem. See method update() of DesktopMultipleChosenImpl class and finally method resultsResetCleanup of ChosenImpl class. This last method references to selectedItem and crash.

I think the method initSearchElement of DesktopMultipleChosenImpl class should initialize selectedItem attribute.

[christiangoudreau]

Thanks for sharing this with us! We'll look into this.

[meriouma]

Please reopen the issue if it still happens with new 3.1-SNAPSHOT. Thanks!