RFR: 8350118: Simplify the layout access VarHandle [v2]

[Jorn Vernee]

On Wed, 26 Feb 2025 19:53:45 GMT, Chen Liang <liach at openjdk.org> wrote:

>> src/java.base/share/classes/java/lang/invoke/X-VarHandleSegmentView.java.template line 83:
>> 
>>> 81:                     bb.unsafeGetBase(),
>>> 82:                     offset(bb, base, offset),
>>> 83:                     handle.be);
>> 
>> Why do we not have a call to `convEndian` here?
>
> This is just how it was. Refer to line 141 in old diff.

Ah, right, the unaligned Unsafe routines support specifying the endianess already, but for the aligned variants it has to be emulated.

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PR Review Comment: https://git.openjdk.org/jdk/pull/23720#discussion_r1973675226