RFR 8234613: JavaThread can escape back to Java from an ongoing handshake

[Patricio Chilano]

Hi Robbin,

On 11/25/19 4:14 AM, Robbin Ehn wrote:
> Hi Patricio,
>
> On 2019-11-22 19:25, Patricio Chilano wrote:
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8234613
>> Webrev: http://cr.openjdk.java.net/~pchilanomate/8234613/v01/webrev/
>
> Thanks, I think this is good and easy to backport!
> You might as well add native to the assert.
Added!

> We should revisit this when we have time.
> There are two polls and four transition in this code, which is more 
> complicated
> than I like.
Agree, I think it could be simplified.

Here is v2:
http://cr.openjdk.java.net/~pchilanomate/8234613/v02/webrev/ 
<http://cr.openjdk.java.net/~pchilanomate/8234613/v02/webrev/src/hotspot/share/runtime/handshake.cpp.udiff.html>

Thanks for looking at this Robbin!

Patricio
> /Robbin
>
>>
>> Thanks,
>> Patricio