RFR 9: 8143876 : test/java/lang/ProcessHandle/TreeTest.java failed intermittently with assertion error

[Joseph D. Darcy]

Hi Roger,

Looks fine.

Do you know if there are clock skew issues to be concerned with if the 
parent and child are spawned on different CPUs?

Thanks,

-Joe

On 12/1/2015 5:49 PM, Roger Riggs wrote:
> Please review this change in ProcessHandle to validate parent pids 
> provided by the OS.
> Children of a process have start times that are the same or later than 
> the parent.
> The implementation of descendants(), and children(), and getParent()
> are updated to validate the parent pid.
>
> The problem is most pronounced on Windows; the parent pid reported for a
> process may be stale if the parent exited.  The validation is applied in
> platform neutral code and used on all platforms.  Platform specific code
> is used on Windows for getParent(); the Linux platforms do the right 
> thing.
>
> Webrev:
> http://cr.openjdk.java.net/~rriggs/webrev-validate-ppid-8143879/
>
> Issue:
>    https://bugs.openjdk.java.net/browse/JDK-8143876
>
> Thanks, Roger
>