RFR (S) 8210562: Change the verbosity threshold of logging for [oopstorage, ref]

[Thomas Schatzl]

Hi Man,

On Wed, 2018-09-12 at 11:27 -0700, Man Cao wrote:
> Thanks for the response, Kim! Replies below.
> 
> > I think the problem here is the documented translation from the old
> > -XX:+PrintReferenceGC to using UL.  Rather than -Xlog:ref*=debug, 
> > it should be -Xlog:gc+ref*=debug.

> Thomas also agreed on fixing the documentation instead in the bug.
> I'm not familiar with the process of changing documentation. Should
> we also change JDK9 and JDK10's documentation, or only JDK11's
> documentation?

I created JDK-8210712 for the doc team.

> Since this whole issue is about to UL and consistent behavior with
> old flag, should I also CC serviceability-dev at openjdk.java.net on
> this thread?

I do not think this is needed for just a doc error.

[...]

> Should we open a new RFE for that? I think JDK-8210562 might be OK
> for this purpose, as its title is about "Change the verbosity
> threshold" for logging.

If you change the old RFE, please put the old description in the
comments, otherwise the link to JDK-8210712 will be confusing.
Feel free to create a new RFE and close this issue maybe as duplicate
as JDK-8210712 though.

Thanks,
  Thomas