[flexcoders] profile still shows removed instances

[stephen_anson]

Hi,
I'm adding a custom UIComponent to the application and then later
removing it.

In the profiler it is still showing up as existing ( even after
garbage collection and setting it to null etc

here is a simplified example, custom butt extends standard button and
does nothing else.

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; 
        layout="absolute" 
        xmlns:comps="*"
        creationComplete="init()">
        <mx:Script>
                <![CDATA[
                
                        private var butt:CustomButt;
                        
                        private function rem(e:Event):void
                        {
                                butt.removeEventListener(MouseEvent.CLICK, rem);
                                removeChild(butt);
                                butt = null;
                        }
                        
                        private function init():void
                        {
                                addChild( butt = new CustomButt());
                                butt.addEventListener(MouseEvent.CLICK, rem);
                        }
                ]]>
        </mx:Script>
        
</mx:Application>

anyone any ideas?, is removing child elements in a flex different to
standard AS 3