RFR: 8256253: Defer Biased Locking obsoletion to JDK 18

[Coleen Phillimore]

On 11/18/20 8:25 AM, David Holmes wrote:
> On 18/11/2020 10:58 pm, Coleen Phillimore wrote:
>> On Wed, 18 Nov 2020 12:52:08 GMT, Coleen Phillimore 
>> <coleenp at openjdk.org> wrote:
>>
>>>> Hi all,
>>>>
>>>> Please review the following change to defer biased-locking 
>>>> obsoletion to 18, as discussed in [1].
>>>> I updated the special_jvm_flags table and re-enabled gtest 
>>>> verify_special_flags.
>>>>
>>>> Thanks,
>>>> Patricio
>>>>
>>>> [1] 
>>>> https://mail.openjdk.java.net/pipermail/hotspot-dev/2020-November/045454.html
>>>
>>> Looks good.  Amazing how many product options there are.
>>
>> I have an alternate idea.  I wonder if for LTS we should remove the 
>> BiasedLocking other options as planned, and leave the main option in 
>> place until JDK 18.  Then we wouldn't have to test and support the 
>> variations of the code that the other options turn on and off.
>
> The plan is to leave the code all as-is for now so there is no impact 
> at all on users. This is what has been discussed and agreed upon.

I know. This proposal is too late.
Coleen

>
> Thanks,
> David
>
>> -------------
>>
>> PR: https://git.openjdk.java.net/jdk/pull/1281
>>