Bug 65762 [Viewers] Need to back out of change to AbstractTreeViewer.isExpandable
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
return;
			}
		}
		if (childElements.length > 0) {
			Object[] filtered = filter(childElements);
			for (int i = 0; i < filtered.length; i++) {
				createAddedElement(widget,filtered[i]);				
			}
		}
	}
	
	/**
	 * Create the new element in the parent widget. If the
	 * child already exists do nothing.
	 * @param widget
	 * @param element
	 */
	private void createAddedElement(Widget widget, Object element){
		
		if(equals(element,widget.getData()))
			return;
		
		Item[] items = getChildren(widget); 
		for(int i = 0; i < items.length; i++){
			if(items[i].getData().equals(element))
				return;
		}				
		
		int index = indexForElement(widget, element);
		createTreeItem(widget, element, index);