Bug 190061 [Metadata] Update @since tags for new API
Patch to follow
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
return;
		Widget w = internalExpand(elementOrTreePath, true);
		if (w != null) {
			internalExpandToLevel(w, level);
		}
	}
	/**
	 * Fires a tree collapsed event. Only listeners registered at the time this
	 * method is called are notified.
	 * 
	 * @param event
	 *            the tree expansion event
	 * @see ITreeViewerListener#treeCollapsed
	 */
	protected void fireTreeCollapsed(final TreeExpansionEvent event) {
		Object[] listeners = treeListeners.getListeners();
		for (int i = 0; i < listeners.length; ++i) {
			final ITreeViewerListener l = (ITreeViewerListener) listeners[i];
			SafeRunnable.run(new SafeRunnable() {
				public void run() {
					l.treeCollapsed(event);
				}
			});
		}
	}
	/**
	 * Fires a tree expanded event. Only listeners registered at the time this
	 * method is called are notified.
	 * 
	 * @param event