RFR: 8223961: ZGC: Unexpected behaviour was observed caused by the incorrect update of _nticks in ZMetronome::wait_for_tick()

[Jie Fu]

Thank you so much, Per.
Hope to be reviewed soon.

Best regards,
Jie

On 2019/5/17 下午2:14, Per Liden wrote:
> Let's wait for a second Reviewer to give thumbs up, then I'll go ahead 
> and sponsor/push this.
>
> cheers,
> Per