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
}
	Widget item = findItem(element);
	if (item != null) {
		
		internalRefresh(item, element, true, updateLabels);
	}
}
/**
 * Refreshes the tree starting at the given widget.
 *
 * @param widget the widget
 * @param element the element
 * @param doStruct <code>true</code> if structural changes are to be picked up,
 *   and <code>false</code> if only label provider changes are of interest
 * @param updateLabels <code>true</code> to update labels for existing elements,
 * <code>false</code> to only update labels as needed, assuming that labels
 * for existing elements are unchanged.
 */
private void internalRefresh(Widget widget, Object element, boolean doStruct, boolean updateLabels) {
	
	if (widget instanceof Item) {
		if (doStruct) {
			updatePlus((Item)widget, element);
		}	
		if (updateLabels) {
			doUpdateItem(widget, element, true);
		}
		else {
			associate(element, (Item) widget);
		}