RFR: 8339850: Restore the interrupt status in FileSystemPreferences.lockFile() [v2]

[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 refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  8339850: Restore the interrupt status in FileSystemPreferences.lockFile()

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Changes:
  - all: https://git.openjdk.org/jdk/pull/20938/files
  - new: https://git.openjdk.org/jdk/pull/20938/files/27cba448..0b030411

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20938&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20938&range=00-01

  Stats: 3 lines in 1 file changed: 1 ins; 1 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