[foreign-memaccess+abi] RFR: 8291286: Improve JavaDocs for static constructors in MemorySession [v2]

[Maurizio Cimadamore]

On Thu, 4 Aug 2022 14:37:28 GMT, Per-Åke Minborg <duke at openjdk.org> wrote:

>> This PR adds information to the static constructor methods in MemorySession to improve clarity for new users.
>> 
>> This is my first PR for a JDK project so I am eager to receive feedback and improvement suggestions from the community.
>
> Per-Åke Minborg has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add @return tagg

Marked as reviewed by mcimadamore (Committer).

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PR: https://git.openjdk.org/panama-foreign/pull/693