RFR: 8330465: Stable Values and Collections (Internal) [v5]

[Per Minborg]

On Wed, 15 May 2024 16:11:56 GMT, Chen Liang <liach at openjdk.org> wrote:

>> Per Minborg has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Switch to monomorphic StableValue and use lazy arrays
>
> src/java.base/share/classes/jdk/internal/lang/stable/StableValueImpl.java line 139:
> 
>> 137:             case NON_NULL: { return valueVolatile(); }
>> 138:             case ERROR:    { throw StableUtil.error(this); }
>> 139:             case DUMMY:    { throw shouldNotReachHere(); }
> 
> Redundant branch?

The idea here is to have the most likely value in the middle... Not sure if that motivates the added complexity though.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18794#discussion_r1602739126