Find the stack of calling classes

Hi all,
How can I find the stack of calling classes?
I cannot use getDeclaringclass because I cannot pass (this) in the new class...
any idea? urls or documentation?
thanks
andrew

You can do something like:
StackTraceElement stack[] = new Throwable().getStackTrace();

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object      line object
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3a7f2d618         3 procedure INV_ADM.P0
39abfeef0         3 procedure INV_ADM.P1
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