RFR: 8283698: Refactor Locale constructors used in src/test

Wed Apr 6 19:36:40 UTC 2022

On Wed, 6 Apr 2022 17:45:13 GMT, Naoto Sato <naoto at openjdk.org> wrote:

> This is a follow-on task after deprecating the Locale constructors (https://bugs.openjdk.java.net/browse/JDK-8282819). Most of the changes are simple replacements to Locale constructors with `Locale.of()` or Locale constants, such as `Locale.US`.

Marked as reviewed by iris (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8130