RFR: JDK-8286869: unify os::dir_is_empty across posix platforms [v2]

Wed May 18 15:29:55 UTC 2022

On Wed, 18 May 2022 07:28:38 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> The os::dir_is_empty coding is very similar across Posix platforms and could be unified to os_posix.cpp .
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   use readdir, opendir, closedir from global scope

Marked as reviewed by iklam (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8750