[jdk17u-dev] RFR: 8310631: test/jdk/sun/nio/cs/TestCharsetMapping.java is spuriously passing [v3]

[Goetz Lindenmaier]

> I backport this for parity with 17.0.11-oracle.
> 
> I hat to resolve trivialle, presumably because [8257733: Move module-specific data from make to respective module](https://github.com/openjdk/jdk/commit/f8878cb0cc436993ef1222bc13b00b923d91aad1) is not in 17.

Goetz Lindenmaier has updated the pull request incrementally with one additional commit since the last revision:

  Restore missing files

-------------

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/2126/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/2126/files/9c33919c..1e7b281e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2126&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2126&range=01-02

  Stats: 207 lines in 3 files changed: 207 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2126.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2126/head:pull/2126

PR: https://git.openjdk.org/jdk17u-dev/pull/2126