[jdk22] RFR: 8325590: Regression in round-tripping UTF-16 strings after JDK-8311906

[Roger Riggs]

8325590: Regression in round-tripping UTF-16 strings after JDK-8311906

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Commit messages:
 - Backport 13d9e8ff38536287b82c54bb63bd2d20f65615dc

Changes: https://git.openjdk.org/jdk22/pull/110/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk22&pr=110&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8325590
  Stats: 39 lines in 2 files changed: 32 ins; 2 del; 5 mod
  Patch: https://git.openjdk.org/jdk22/pull/110.diff
  Fetch: git fetch https://git.openjdk.org/jdk22.git pull/110/head:pull/110

PR: https://git.openjdk.org/jdk22/pull/110