Bug 126061 [Viewers] Need to document that virtual tables and trees ignore sorters and filters
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TreeViewer.java
}
    		}
    		return;
    	}
    	super.createChildren(widget);
    }
    
    protected void internalAdd(Widget widget, Object parentElement,
    		Object[] childElements) {
    	if (getContentProvider() instanceof ILazyTreeContentProvider) {
    		if (widget instanceof TreeItem) {
    			TreeItem ti = (TreeItem) widget;
    			int count = ti.getItemCount() + childElements.length;
				ti.setItemCount(count);
    			ti.clearAll(false);
    		} else {
    			Tree t = (Tree) widget;
    			t.setItemCount(t.getItemCount() + childElements.length);
    			t.clearAll(false);
    		}
    		return;
    	}
    	super.internalAdd(widget, parentElement, childElements);
    }
	private void virtualMaterializeItem(TreeItem treeItem) {
		if (treeItem.getData() != null) {
			
			return;
		}
		if (!(getContentProvider() instanceof ILazyTreeContentProvider)) {