utility to indicate why an object can't be deleted

Is there any utility that indicates in a comprehens开发者_Go百科ible way what is referencing and object and why it can't be garbage collected.

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There's a free version from Push button labs too

http://pushbuttonengine.com/2010/06/pushbutton-labs-profiler-open-sourced/

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The profiler built into Flash Builder 4 should be able to provide you with the kind of information you want. Likely the object references panel.