Leo,
Thank you for your eloquence. This is EXACTLY what I was attempting to say.
----- Original Message -----
From: "Leo Sutic" <[EMAIL PROTECTED]>
To: "'Avalon framework users'" <[EMAIL PROTECTED]>
Sent: Monday, December 15, 2003 11:51 AM
Subject: RE: When use ServiceManager.release(obj)?
> > After the finalize method has been invoked for an object, <bold>no
> > further action is taken until the Java virtual machine has again
> > determined that there is no longer any means by which this object can
> > be accessed by any thread that has not yet died, <bolder>including
> > possible actions by other objects or classes which are ready to be
> > finalized, at which point the object may be discarded.
> > </bolder></bold>
> >
> >
> > INCLUDING POSSIBLE ACTIONS BY OTHER OBJECTS OR CLASSES
> > WHICH ARE READY TO BE FINALIZED
>
> Note:
>
> There's a difference between "discarded" and "finalized".
>
> If you have two objects, A and B, and A references B, and both of them
> are unreachable from the root set of references (i.e. both are eligible
> for GC), then A and B may be *finalized* in any order.
>
> However, B may not be *discarded* before A. That is, when A's finalize()
> runs, B may already be finalized. But B must still exist - the reference
> to B that A holds may not be an pointer into a random memory area that
> used to contain B.
>
> For the C++ people, B may have had its finalize() method run, but nobody
> has
> yet freed its memory.
>
> So the JVM can do this:
>
> 1. Figure out all objects eligible for GC. ("garbage objects")
>
> 2. Run finalize() on them in any order.
>
> 3. Free the memory associated with them in any order.
>
> Note that after step (2), no garbage object will do anything. Thus, the
> garbage is
> guaranteed to be "inert" - there will be no code that can possibly
> access
> these objects any more. A garbage object won't access another garbage
> object, becuase they are all finalized. A non-garbage object won't
> access
> a garbage object, because if it could, the garbage object would not be
> garbage.
>
> /LS
>
>
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