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 32:

> 30: 
> 31: /**
> 32:  * An arena controls the lifecycle of one or more memory segments, providing both flexible allocation and timely deallocation.

Strictly: "An arena controls the lifecycle of zero or more ...". A newly created Arena, for example, does not control the lifecycle of any segment.

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