RFR(XS) 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock'

[Krystal Mok]

Hi Zhengyu,

I just glanced over your changes, and the description looks like something
I've seen in the past:
http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2012-July/004106.html

Could you please take a look at the old discussion thread and see if
they're the same thing?

Thanks,
Kris


On Mon, May 19, 2014 at 6:58 AM, Zhengyu Gu <zhengyu.gu at oracle.com> wrote:

> This is a simple fix for incorrect lock state.
>
> The timing on setting thread's pending monitor can result stack trace dump
> reporting incorrect lock state. The solution is to check the monitor's
> owner, if the owner is other than the current thread, then the monitor, is
> or is in process of being, set the pending monitor of current thread.
>
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8036823
> Webrev: http://cr.openjdk.java.net/~zgu/8036823/webrev.00/
>
>
> Thanks,
>
> -Zhengyu
>