RFR: 8353197: Document preconditions for JavaLangAccess methods [v4]

[Volkan Yazici]

> Document preconditions on certain `JavaLangAccess` methods that use operations either unsafe and/or without range checks.

Volkan Yazici has updated the pull request incrementally with one additional commit since the last revision:

  Fix copyright years

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24982/files
  - new: https://git.openjdk.org/jdk/pull/24982/files/4d237efa..121005ee

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24982&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24982&range=02-03

  Stats: 14 lines in 14 files changed: 0 ins; 0 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/24982.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24982/head:pull/24982

PR: https://git.openjdk.org/jdk/pull/24982