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 parent = getParentItem(item);
	if (parent == null) {
		return null;
	}
	Item[] siblings = getItems(parent);
	if (siblings != null && siblings.length <= 1) {
		return getNextItem(parent, false);
	}
	for (int i = 0; i < siblings.length; i++) {
		if (siblings[i] == item && i < (siblings.length - 1)) {
			return siblings[i+1];
		}
	}
	return getNextItem(parent, false);
}
/**
 * Returns the parent item of the given item in the tree, or
 * <code>null</code> if there is parent item.
 *
 * @param item the item
 * @return the parent item, or <code>null</code> if none
 */
protected abstract Item getParentItem(Item item);
/**
 * Returns the item before the given item in the tree, or
 * <code>null</code> if there is no previous item.
 *
 * @param item the item
 * @return the previous item, or <code>null</code> if none
 */