[8u] [JFR] RFR: JFR backports from 11.0.4

[Andrey Petushkov]

Hi Mario,

The following fixes apply trivially to jdk11u, so I've requested the permission to backport per process.

https://bugs.openjdk.java.net/browse/JDK-8220555
https://bugs.openjdk.java.net/browse/JDK-8221711
https://bugs.openjdk.java.net/browse/JDK-8222888
https://bugs.openjdk.java.net/browse/JDK-8221569
https://bugs.openjdk.java.net/browse/JDK-8216283

The rest require some rework, I'll post RFRs soon

Thanks,
Andrey

> On 4 Sep 2019, at 17:47, Mario Torre <neugens at redhat.com> wrote:
> 
> Awesome, thanks for checking zero.
> 
> As discussed offline, we have a few backports that were directly
> backported to 8u without first being in 11u:
> 
> https://bugs.openjdk.java.net/browse/JDK-8185525
> https://bugs.openjdk.java.net/browse/JDK-8223599
> https://bugs.openjdk.java.net/browse/JDK-8225310
> https://bugs.openjdk.java.net/browse/JDK-8221711
> https://bugs.openjdk.java.net/browse/JDK-8222888
> https://bugs.openjdk.java.net/browse/JDK-8216283
> https://bugs.openjdk.java.net/browse/JDK-8220555
> https://bugs.openjdk.java.net/browse/JDK-8217362
> https://bugs.openjdk.java.net/browse/JDK-8221569
> https://bugs.openjdk.java.net/browse/JDK-8224217
> 
> A couple of those are wither being worked on or of interest for 11u,
> so they should be fine, some aren't and while may not be critical I
> think they are nice to have (like the container tests), so I would
> expect all of them to be backported to 11u.
> 
> Since this is a staging repository we may go ahead and push them and
> work on the backport to 11 afterward, but I would prefer to not create
> a discrepancy at this moment, so if possible we should work on the
> backports to 11 first.
> 
> Cheers,
> Mario
> 
> 
> On Wed, Sep 4, 2019 at 4:09 PM Andrey Petushkov <andrey at azul.com> wrote:
>> 
>> Hi Mario,
>> 
>> zero build is fine (e.g. mentioned method has default no-op implementation in vm_version.hpp)
>> 
>> Andrey
>> 
>>> On 4 Sep 2019, at 12:52, Mario Torre <neugens at redhat.com> wrote:
>>> 
>>> On 03/09/2019 13:53, Andrey Petushkov wrote:
>>>> Dear All,
>>>> 
>>>> could you please consider the following set of backports of the JFR fixes from 11.0.4 release into 8u incubator baseline:
>>> 
>>> This seems good, the only nit I have now is that some of those changes
>>> may break zero again, I think it may make sense to fix it in this patch
>>> set instead of filing a dedicated bug report later.
>>> 
>>> See for example:
>>> 
>>> JDK-8219241
>>> 
>>> +void VM_Version::print_platform_virtualization_info(outputStream* st) {
>>> 
>>> etc..
>>> 
>>> Cheers,
>>> Mario
>>> 
>>> --
>>> Mario Torre
>>> Associate Manager, Software Engineering
>>> Red Hat GmbH <https://www.redhat.com>
>>> 9704 A60C B4BE A8B8 0F30  9205 5D7E 4952 3F65 7898
>> 
> 
> 
> --
> Mario Torre
> Associate Manager, Software Engineering
> Red Hat GmbH <https://www.redhat.com>
> 9704 A60C B4BE A8B8 0F30  9205 5D7E 4952 3F65 7898