Bug 234345 [Viewers] AbstractTreeViewer#getChildren(Widget,Object[]) holds doc that it is experimental
a) Remove the experimental description => Why do we need this method b) Remove the method
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
for (int i = 0; i < elements.length; i++) {
				Object element = elements[i];
				if (itemExists(items, element)) {
					internalRefresh(element);
				} else {
					createTreeItem(widget, element, -1);
				}
			}
			return;
		}
		
		
		
		int indexInItems = 0;
		
		
		int newItems = 0;
		
		elementloop: for (int i = 0; i < elements.length; i++) {
			Object element = elements[i];
			
			indexInItems = insertionPosition(items, comparator,
					indexInItems, element, parentPath);
			if (indexInItems == items.length) {
				createTreeItem(widget, element, -1);
				newItems++;
			} else {