RFR: 8226897: Provide object age with JFR OldObjectSample event

[Mikhailo Seledtsov]

Looks good to me. Please update copyright year on TestObjectAge.java 
prior to integration.

Misha

On 11/11/19, 11:11 AM, Erik Gahlin wrote:
> Hi,
>
> Could I have a review of this fix that adds object age to the Old 
> Object Sample event.
>
> Example usage:
>
> $ jfr print --events OldObjectSample recording.jfr
> jdk.OldObjectSample {
>   startTime = 19:00:04.543
>   allocationTime = 18:59:41.395
>   objectAge = 23,148 s
>   lastKnownHeapUsage = 983,1 kB
>   object =  [
>     java.lang.Class Class Name: java.awt.Conditional
>   ]
>   arrayElements = N/A
>   root = N/A
>   eventThread = "AWT-EventQueue-0" (javaThreadId = 34)
> }
> ...
>
> Webrev:  http://cr.openjdk.java.net/~egahlin/8226897/
> Bug: https://bugs.openjdk.java.net/browse/JDK-8226897
> Testing: test/jdk/jdk/jfr
>
> Thanks
> Erik
>