Re: Update on TreeList causes loss of selection

Hey guys,

happy new year to all. I hope you're doing fine.

We recently came across a small problem with TreeList.
The following test case fails (the last assertion).
An EventSelectionModel based on a TreeList looses
its selection when an update happens on the selected element
in the source list.
Looks like a bug to me or what do you think?

Thanks,
Holger

----
public class TreeListTestCase extends SwingTestCase {

   public void guiTestTreeListSelection() {
       final EventList<String> source = new BasicEventList<String>();
       source.add("zero");
       source.add("one");
       source.add("two");
       source.add("three");

       final EventList<String> sourceProxy = GlazedListsSwing.swingThreadProxyList(source);
       final TreeList<String> treeList = new TreeList<String>(sourceProxy, new StringFormat(),
               TreeList.NODES_START_EXPANDED);
       final EventSelectionModel<String> selModel = new EventSelectionModel<String>(treeList);
       selModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
       selModel.setSelectionInterval(2, 2);
       assertEquals(Arrays.asList("two"), selModel.getSelected());
       source.set(2, source.get(2));
       assertEquals(Arrays.asList("two"), selModel.getSelected());
   }

   private static class StringFormat implements TreeList.Format<String> {
       public boolean allowsChildren(String element) {
           return element.equals("zero");
       }
       public Comparator<? extends String> getComparator(int depth) {
           return null;
       }
       public void getPath(List<String> path, String element) {
            if (!element.equals("zero")) {
                getPath(path, "zero");
            }
            path.add(element);
       }
   }
}

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