RFR: 8339850: Restore the interrupt status in FileSystemPreferences.lockFile() [v3]

[sbgoog]

> FIleSystemPreferences.lockFile() catches an InterruptedException and just returns false, forgetting to re-interrupt the current thread. This leaves the caller with no way to observe that the thread was interrupted. This change restores the interrupted status on the current thread before returning.

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

  Update Copyright year

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Changes:
  - all: https://git.openjdk.org/jdk/pull/20938/files
  - new: https://git.openjdk.org/jdk/pull/20938/files/0b030411..2c0c1896

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20938&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20938&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/20938.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20938/head:pull/20938

PR: https://git.openjdk.org/jdk/pull/20938