RFR: 8062771: Core reflection should use final fields whenever possible

[Joel Borggrén-Franck]

Hi Martin,

Thanks for the clarification.

On 6 nov 2014, at 20:51, Martin Buchholz <martinrb at google.com> wrote:

> Hi Joel,
> 
> On Thu, Nov 6, 2014 at 2:48 AM, Joel Borggrén-Franck
> <joel.franck at oracle.com> wrote:
>> Hi,
>> 
>> I’m having a hard time following this thread, which webrev has been updated, for which release, fixing which issue?
> 
> I am submitting the changeset for JDK-8062771, adding the finals and
> the (failed reproduction) test.
> Hopefully there will be followon changes to add even more thread safety.
> 

Great.

Are we sure the accidental fix of making ClassRepository volatile is good on all platforms? I can’t establish the happens before relations that would prove the fix but then again I’m not an expert on concurrency.

>> Martin, as far as I can see you are the only one of us who has replied to this thread who is a jdk7u committer (or reviewer).
> 
> I am entirely in favor of having more reviewers.
> 
> We are not planning to push these into jdk7u or jdk8u ourselves, but
> we are willing to help anyone who wants to take on that task.  Joel,
> are you volunteering?
> We believe all versions of stock openjdk still have (rarely seen)
> thread safety issues in core reflection. We have applied changes
> locally at Google to fix those.
> 

I’ll take care of 8u, and I can hunt down someone to fix this in 7u if we can find a suitable reviewer (sigh).

cheers
/Joel