RFR: 8284378: Make Metal the default Java 2D rendering pipeline for macOS

[Kevin Rushforth]

On Wed, 6 Apr 2022 09:48:13 GMT, Ajit Ghaisas <aghaisas at openjdk.org> wrote:

> This PR makes Metal rendering pipeline as the default Java 2D rendering pipeline for macOS.
> 
> Please refer "JBS Description" for more details.

Marked as reviewed by kcr (Author).

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PR: https://git.openjdk.java.net/jdk/pull/8121