RFR 9: 8138696 : java.lang.ref.Cleaner - an easy to use alternative to finalization

Roger Riggs Roger.Riggs at Oracle.com
Wed Oct 21 14:52:09 UTC 2015

Hi Andrew,

So then is is correct to conclude that the gc does examine fields in 
still being constructed to determine reachability?

How is that we have gone so long without needing reachabilityFence?
Or is it just because optimizers have taken so long to get a perfect 
view of reference scope?

Thanks, Roger

On 10/21/2015 10:45 AM, Andrew Haley wrote:
> On 10/21/2015 02:58 PM, Daniel Fuchs wrote:
>> I do hope that method parameters are not eagerly gc'ed before
>> the method returns
> They are -- that's what reachabilityFence() is for.  I don't think
> that constructors have any special rules, and nor should they.
> Andrew.

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