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
int oldCnt= -1;
	if (widget == tree)
		oldCnt= getItemCount(tree);
	Item[] items = getChildren(widget);
	
	
	HashSet expanded = new HashSet(); 
	for (int i = 0; i < items.length; ++i) {
		if (getExpanded(items[i])) {
			Object element = items[i].getData();
			if (element != null) {
				expanded.add(element);
			}
		}
	}
	
	int min = Math.min(elementChildren.length, items.length);
	
	 
	
	
	
	for (int i = items.length; --i >= min;) {
		if (items[i].getData() != null) {
			disassociate(items[i]);
		}
		items[i].dispose();
	}