git: openjdk/jdk: 8302603: Use Set.of in java.nio.charset.Charset

[Naoto Sato]

Changeset: 5489c821
Author:    Glavo <zjx001202 at gmail.com>
Committer: Naoto Sato <naoto at openjdk.org>
Date:      2023-02-21 17:35:52 +0000
URL:       https://git.openjdk.org/jdk/commit/5489c821dc2e0c3cfa207dc96d9183d165640368

8302603: Use Set.of in java.nio.charset.Charset

Reviewed-by: stsypanov, alanb, naoto

! src/java.base/share/classes/java/nio/charset/Charset.java