Similar to PR #24982 Document preconditions on certain DecimalDigits methods that use operations either unsafe and/or without range checks.
------------- Commit messages: - Document preconditions for DecimalDigits methods Changes: https://git.openjdk.org/jdk/pull/25246/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25246&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8357063 Stats: 53 lines in 7 files changed: 0 ins; 0 del; 53 mod Patch: https://git.openjdk.org/jdk/pull/25246.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/25246/head:pull/25246 PR: https://git.openjdk.org/jdk/pull/25246
