RFR: 8024695: new File("").exists() returns false whereas it is the current working directory [v2]

[Brian Burkhalter]

> Update the specification of `java.io.File.exists()` to match its behavior, which seems correct in the context of how the empty abstract pathname is documented elsewhere in the class.

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

  8024695: Change implementation to work for empty path

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/22821/files
  - new: https://git.openjdk.org/jdk/pull/22821/files/5e210314..9d6d9105

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22821&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22821&range=00-01

  Stats: 254 lines in 4 files changed: 204 ins; 2 del; 48 mod
  Patch: https://git.openjdk.org/jdk/pull/22821.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22821/head:pull/22821

PR: https://git.openjdk.org/jdk/pull/22821