[jdk18u] RFR: 8285956: (fs) Excessive default poll interval in PollingWatchService [v2]

[Tyler Steele]

> This PR backports changes that reduce the wait time for a user of the WatchService API on AIX and BSD.

Tyler Steele has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains one commit:

  Backport 1bb4de2e2868a539846ec48dd43fd623c2ba69a5

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Changes: https://git.openjdk.java.net/jdk18u/pull/121/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18u&pr=121&range=01
  Stats: 9 lines in 1 file changed: 6 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk18u/pull/121.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18u pull/121/head:pull/121

PR: https://git.openjdk.java.net/jdk18u/pull/121