RFR: 8355558: SJIS.java test is always ignored [v2]

[Naoto Sato]

> Stemmed from this PR: https://github.com/openjdk/jdk/pull/24838
> After JEP 400, `file.encoding` is always UTF-8, so the test was never run. Using `native.encoding` is appropriate so that the intention of the initial test will hold. Tested on an English Windows in which the system locale is set to `Japanese(Japan)`, and confirmed it succeeded without SkippedException.

Naoto Sato has updated the pull request incrementally with one additional commit since the last revision:

  Expand wild card imports

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24881/files
  - new: https://git.openjdk.org/jdk/pull/24881/files/670228c7..76aac517

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24881&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24881&range=00-01

  Stats: 5 lines in 1 file changed: 4 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/24881.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24881/head:pull/24881

PR: https://git.openjdk.org/jdk/pull/24881