RFR: 8295044: Implementation of Foreign Function and Memory API (Second Preview) [v22]

[Per Minborg]

On Tue, 15 Nov 2022 12:34:43 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

>> This PR contains the API and implementation changes for JEP-434 [1]. A more detailed description of such changes, to avoid repetitions during the review process, is included as a separate comment.
>> 
>> [1] - https://openjdk.org/jeps/434
>
> Maurizio Cimadamore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add `since` tag in Module/ModuleLayer preview methods

src/java.base/share/classes/java/lang/foreign/Arena.java line 100:

> 98:      * MemorySegment.allocateNative(bytesSize, byteAlignment, scope());
> 99:      *}
> 100:      * More generally implementations of this method must return a native method featuring the requested size,

... must return a native ~~method~~*segment* featuring ...

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PR: https://git.openjdk.org/jdk/pull/10872