Bug 141192 [Viewers] Javadoc change about multiple equal elements in StructuredViewer and AbstractTreeViewer
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
child.dispose();
		        }
			}            	
		}            
        internalReconcileParentItems(parentItems);
    }
    /**
     * Sets the expanded state of all items to correspond to the given set of
     * expanded elements.
     * 
     * @param expandedElements
     *           the set (element type: <code>Object</code>) of elements
     *           which are expanded
     * @param widget
     *           the widget
     */
    private void internalSetExpanded(CustomHashtable expandedElements,
            Widget widget) {
        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) != null;
                if (expanded != getExpanded(item)) {
                    if (expanded) {
                        createChildren(item);
                    }