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
Item[] items = getChildren(widget);
	for (int i = 0; i < items.length; i++) {
		Item item = items[i];
		Object data = item.getData();
		if (data != null) {
			
			
			boolean expanded = expandedElements.remove(data);
			if (expanded != getExpanded(item)) {
				if (expanded) {
					createChildren(item);
				}
				setExpanded(item, expanded);
			}
		}
		internalSetExpanded(expandedElements, item);
	}
}
/**
 * Return whether the tree node representing the given element
 * can be expanded.
 * <p>
 * The default implementation of this framework method calls 
 * <code>hasChildren</code> on this viewer's content provider.
 * It may be overridden if necessary.
 * </p>
 *
 * @param element the element
 * @return <code>true</code> if the tree node representing
 * the given element can be expanded, or <code>false</code> if not