[jdk21] RFR: 8308694: Clarify reversed() default methods' implementation requirements

Wed Jul 12 18:29:27 UTC 2023

Hi all,

This pull request contains a backport of commit [f82c8184](https://github.com/openjdk/jdk/commit/f82c8184b26142da4018ae096cfa39d87a4c6540) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Stuart Marks on 12 Jul 2023 and was reviewed by Roger Riggs.

Thanks!

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Commit messages:
 - Backport f82c8184b26142da4018ae096cfa39d87a4c6540

Changes: https://git.openjdk.org/jdk21/pull/115/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21&pr=115&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8308694
  Stats: 32 lines in 4 files changed: 24 ins; 0 del; 8 mod
  Patch: https://git.openjdk.org/jdk21/pull/115.diff
  Fetch: git fetch https://git.openjdk.org/jdk21.git pull/115/head:pull/115

PR: https://git.openjdk.org/jdk21/pull/115