Bug 315281 update copyrights for 3.6
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/StructuredViewer.java
*/
	public ISelection getSelection() {
		Control control = getControl();
		if (control == null || control.isDisposed()) {
			return StructuredSelection.EMPTY;
		}
		List list = getSelectionFromWidget();
		return new StructuredSelection(list, comparer);
	}
	/**
	 * Retrieves the selection, as a <code>List</code>, from the underlying
	 * widget.
	 * 
	 * @return the list of selected elements
	 */
	protected abstract List getSelectionFromWidget();
	/**
	 * Returns the sorted and filtered set of children of the given element. The
	 * resulting array must not be modified, as it may come directly from the
	 * model's internal state.
	 * 
	 * @param parent
	 *            the parent element
	 * @return a sorted and filtered array of child elements
	 */
	protected Object[] getSortedChildren(Object parent) {
		Object[] result = getFilteredChildren(parent);
		if (sorter != null) {
			
			result = (Object[]) result.clone();