RFR: 8307160: Fix AWT/2D/A11Y to support the permissive- flag on the Microsoft Visual C compiler [v28]

[Julian Waters]

On Mon, 20 Nov 2023 20:03:28 GMT, Phil Race <prr at openjdk.org> wrote:

>> Sorry, I was trying to keep as close to the original code as possible. Woah, does that mean the original was bugged, since it was deleting a NULL canvas? Anyway, should I change the string to canvas or just keep it as "peer" like the original code does in that case?
>
> Not buggy per se, since NULL is allowed
> https://docs.oracle.com/en/java/javase/21/docs/specs/jni/functions.html#deleteglobalref
> 
> But that doesn't make it good practice.
> 
> Yes, change the name because then it is more precise.

Is the new code better?

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PR Review Comment: https://git.openjdk.org/jdk/pull/15096#discussion_r1400090582