RFR: 8260520: Avoid getting permissions in JarFileFactory when no SecurityManager installed [v2]

[Sean Mullan]

On Wed, 27 Jan 2021 18:59:00 GMT, Claes Redestad <redestad at openjdk.org> wrote:

>> 8260520: Avoid getting permissions in JarFileFactory when no SecurityManager installed
>
> Claes Redestad has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Copyrights
>  - Same for Windows

Marked as reviewed by mullan (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/2263