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
protected Item getPreviousItem(Item item) {
	 
	
	Item parent = getParentItem(item);
	if (parent == null) {
		return null;
	}
	Item[] siblings = getItems(parent);
	if (siblings.length == 0 || siblings[0] == item) {
		return parent;
	}
	Item previous = siblings[0];
	for (int i = 1; i < siblings.length; i++) {
		if (siblings[i] == item) {
			return rightMostVisibleDescendent(previous);
		}
		previous = siblings[i];
	}
	return null;
}
/* (non-Javadoc)
 * Method declared on StructuredViewer.
 */
protected Object[] getRawChildren(Object parent) {
	if (parent != null) {
		if (equals(parent, getRoot()))
			return super.getRawChildren(parent);
		Object[] result = ((ITreeContentProvider) getContentProvider()).getChildren(parent);
		if (result != null)
			return result;