On Thu, 16 Nov 2023 19:15:25 GMT, Jorn Vernee <jver...@openjdk.org> wrote:
>> But... surely if I'm just accessing bytes the access cannot possibly be
>> mis-aligned?
>
> Right. I think there is a difference between 'unaligned' and 'misaligned'.
> Unaligned means there is no effort made to align the access (so it _may_ be
> misaligned). Misaligned means _definitely not_ aligned. At least, that is my
> interpretation.
>
> This is what I wrote in the latest version:
>
>
> * For heap byte buffers, access is always unaligned. As a result, only
> the plain
> * {@linkplain VarHandle.AccessMode#GET get}
> * and {@linkplain VarHandle.AccessMode#SET set} access modes are
> supported by the
> * returned var handle. For all other access modes, an {@link
> IllegalStateException}
> * will be thrown.
Uhm, I think my assumption was wrong - the `byte`/`boolean` carrier is not
supported by this method, so there's no case where heap access would be
guaranteed to be aligned.
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PR Review Comment: https://git.openjdk.org/jdk/pull/16681#discussion_r1396221179
