RFR: JDK-8075816: Deprecate AliasLevel flag since it is broken [v3]

Wed Apr 20 08:25:27 UTC 2022

On Thu, 14 Apr 2022 17:04:24 GMT, Tobias Holenstein <duke at openjdk.java.net> wrote:

>> Deprecate the `AliasLevel` flag. `AliasLevel` can have the following values:  
>> 
>> "0 - for no aliasing, "
>> "1 - for oop/field/static/array split, "
>> "2 - for class split, "
>> "3 - for unique instances"
>> 
>>  - Deprecate AliasLevel in JDK 19.
>>  - Obsolete it in JDK 20
>>  - Expire it in JDK 21.
>> 
>> Users will now get the following message when running:
>> `java -XX:AliasLevel= Java HotSpot(TM) 64-Bit Server VM warning: Option AliasLevel was deprecated in version 19.0 and will likely be removed in a future release.`
>
> Tobias Holenstein has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Revert "Obsolete AliasLevel flag"
>   
>   This reverts commit 6a1bed2d7ed5494b051fae09d28787fd01de9635.

\integrate

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PR: https://git.openjdk.java.net/jdk/pull/8140