[foreign-memaccess+abi] RFR: Convert local classes to proper utility classes

[Jorn Vernee]

On Mon, 9 Oct 2023 20:18:52 GMT, Per Minborg <pminborg at openjdk.org> wrote:

> This PR proposes to convert local holder classes to proper utility classes. 
> 
> The utility of this PR can be discussed as there are valid arguments for keeping the code as it is and also to accept the PR.
> 
> Let me know your thoughts.

I'm not sure I see the value in these changes, given that the class is already extremely local. This mostly seems like noise to me.

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PR Review: https://git.openjdk.org/panama-foreign/pull/904#pullrequestreview-1665317106