Bug 24024 [Viewers] Error in Javadoc for AbstractTreeViewer::setAutoExpandLevel()
from Javadoc for AbstractTreeViewer::setAutoExpandLevel() : * Sets the auto-expand level. * The value 0 means that the root's children are not visible; * 1 means that the root is expanded so that its children are visible, * but the root's grandchildren are not; and so on. That's off by one. 0 means auto-expand is off. 1 means that roots are not expanded. 2 means that children of the roots are expanded, but not grandchildren; etc. * The value <code>EXPAND_ALL</code> means that all subtrees should be * expanded. The constant should read ALL_LEVELS Note that some other expansion-methods need these comment updates too.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
if (childItem instanceof Item) {
			Item parentItem = getParentItem((Item) childItem);
			if (parentItem != null) {
				parentItems.add(parentItem);
			}
			disassociate((Item) childItem);
			childItem.dispose();
		}
	}
	Control tree = getControl();
	for (Iterator i = parentItems.iterator(); i.hasNext();) {
		Item parentItem = (Item) i.next();
		if (!getExpanded(parentItem) && getItemCount(parentItem) == 0) {
			
			if (isExpandable(parentItem.getData())) {
				newItem(parentItem, SWT.NULL, -1);
			} else {
				
				tree.redraw();
			}	
		}
	}
}
/**
 * Sets the expanded state of all items to correspond to the given set of expanded elements.
 *
 * @param expandedElements the set (element type: <code>Object</code>) of elements which are expanded
 * @param widget the widget
 */
private void internalSetExpanded(HashSet expandedElements, Widget widget) {