RFR: 8329997: Add MemorySegment::reinterpretate overloads for alignment constraints

[Maurizio Cimadamore]

On Wed, 10 Apr 2024 15:19:31 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

>> This PR proposes to add two overloads `MemorySegment::reinterpretate` to allow aligned reinterpretation.
>
> test/jdk/java/foreign/TestSegments.java line 396:
> 
>> 394:         AtomicInteger counter = new AtomicInteger();
>> 395:         try (Arena arena = Arena.ofConfined()){
>> 396:             var segment = MemorySegment.ofAddress(41).reinterpret(JAVA_INT);
> 
> i.e. this call (and the one below) should throw an exception.

Note - this means that the javadoc of the new methods should also document an IllegalArgumentException.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18717#discussion_r1559656059