RFR: 8365501: Remove speical AdapterHandlerEntry for abstract methods [v2]

[Vladimir Kozlov]

On Wed, 27 Aug 2025 13:47:05 GMT, Ashutosh Mehra <asmehra at openjdk.org> wrote:

>> This PR removes the need for having AdapterHandlerEntry for abstract methods. The check for abstract method is now done in the accessor functions in Method such as Method::get_i2c_entry().
>> Motivation for this change is described in the JBS issue.
>
> Ashutosh Mehra has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:
> 
>  - Merge branch 'master' into remove-abstract_method_handler
>  - 8365501: Remove speical AdapterHandlerEntry for abstract methods
>    
>    Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>

src/hotspot/share/oops/method.cpp line 1292:

> 1290:   } else if (is_abstract()) {
> 1291:     h_method->_from_compiled_entry = SharedRuntime::get_handle_wrong_method_abstract_stub();
> 1292:   }

Can you swap conditions? Check is_abstract() first and then (_adapter == nullptr).

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PR Review Comment: https://git.openjdk.org/jdk/pull/26764#discussion_r2304876519