String[] items = createItems(list = new ArrayList<Object>(originalList), labelProvider, filter, sorted);

      ArrayList<Object> newList = new ArrayList<Object>(originalList);

      combo.setItems(items);

      String[] items = createItems(newList, labelProvider, filter, sorted);

      if (items.length > 0)

      if (!newList.equals(list))

      {

      {

        combo.select(0);

        final Object previousValue = getValue();

        list = newList;

        combo.setItems(items);

        if (list.contains(previousValue))

        {

          // Set it immediately and set it again later because something insists on changing the selection again.

          setValue(previousValue);

          combo.getDisplay().asyncExec

            (new Runnable()

             {

               public void run()

               {

                 setValue(previousValue);

               }

             });

        }

      super.doSetValue(list.indexOf(value));

      super.doSetValue(index);