RFR: 8338471: Refactor Method::get_new_method() for better NoSuchMethodError handling [v4]

[Matias Saavedra Silva]

On Wed, 11 Sep 2024 21:02:41 GMT, Matias Saavedra Silva <matsaave at openjdk.org> wrote:

>> This patch cleans up the use of `get_new_method()` so callers don't have to worry about throwing `NoSuchMethodError`. The method is refactored to throw the error and avoid ever returning nullptr. Verified with tier1-5 tests.
>
> Matias Saavedra Silva has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Coleen suggestion

There are lingering concerns about the impact of this change and how it changes the behavior at certain code paths. Since we cannot reach a consensus this PR will be closed an picked up elsewhere.

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PR Comment: https://git.openjdk.org/jdk/pull/20874#issuecomment-2361082192