Bug 315281 update copyrights for 3.6
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TreeViewer.java
return;
					}
					treePath = getTreePathFromItem((Item) widget);
				} else {
					treePath = TreePath.EMPTY;
				}
				((ILazyTreePathContentProvider) getContentProvider())
						.updateElement(treePath, index);
			} else {
				((ILazyTreeContentProvider) getContentProvider()).updateElement(
						widget.getData(), index);
			}
		} finally {
			setBusy(oldBusy);
		}
	}
	/**
	 * Update the child count
	 * @param widget
	 * @param currentChildCount
	 */
	private void virtualLazyUpdateChildCount(Widget widget, int currentChildCount) {
		boolean oldBusy = isBusy();
		setBusy(false);
		try {
			if (contentProviderIsTreeBased) {
				TreePath treePath;
				if (widget instanceof Item) {
					treePath = getTreePathFromItem((Item) widget);