Sorry, but I don't agree. Anyone else?

On 20.07.2007 14:01:52 Andreas L Delmelle wrote:
> On Jul 20, 2007, at 11:58, Jeremias Maerki wrote:
> >
> > Read again: "Implementation note: The value objects in a  
> > WeakHashMap are
> > held by ordinary strong references." That means that all the object in
> > there can never be released since there never be only a weak reference
> > to the object there.
> Right, but the value objects are not the issue. As long as the key  
> can be released, and the value does not refer directly or indirectly  
> back to the key, there is no problem. What the Javadoc warns about is  
> the situation where value /refers back/ to the key in some way or  
> other: most simple case would be that the value object is composite  
> and has an instance member that is itself the key object. In that  
> case, the entry will never be released, unless the value itself is  
> wrapped in a WeakReference.
> FWIW: I had the same initial reservations, but re-reading the  
> Javadoc, it occurred to me that this was actually no problem at all.
> Cheers
> Andreas

Jeremias Maerki

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