RFR: 8160821: VarHandle accesses are penalized when argument conversion is required [v3]

[Chen Liang]

On Wed, 3 Dec 2025 10:31:07 GMT, Per Minborg <pminborg at openjdk.org> wrote:

>> MethodHandle is immutable and can be safely published. So this is ok.
>
> I meant that even though objects are immutable, plain semantics might not always do. 
> 
> Reference: https://shipilev.net/blog/2014/safe-public-construction/

MethodHandle is safe. All fields in Method Handle hierarchies are either lazy/stable or final. You can refer to the `invokers` field in `MethodType`, and the `MethodHandle` array in `Invokers` for precedents.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28585#discussion_r2585263336