@Override
    public Set<T> getSelectedSet() {
        final Set<T> set = new HashSet<>();
        final T item = getSelectedObject();
        if (item != null) {
            set.add(item);
        }
        return set;
    }
Gets the currently-selected item.

@return the selected item
stroom-core-client-widget/src/main/java/stroom/widget/util/client/MySingleSelectionModel.java