RFR: 8319265: TestLoadLibraryDeadlock.java fails on windows-x64 "Unable to load b.jar" [v2]

[Mandy Chung]

> The test fails on windows because unmatched comparison of `Path.toString()` vs `URL.getPath().toString()` after JDK-8317965.   A simple fix is to evaluate the JAR file path in the same way as `LoadLibraryDeadlock` does.

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

  review feedback

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Changes:
  - all: https://git.openjdk.org/jdk/pull/16466/files
  - new: https://git.openjdk.org/jdk/pull/16466/files/e82c38d7..a29e15b3

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=16466&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=16466&range=00-01

  Stats: 8 lines in 2 files changed: 7 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/16466.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16466/head:pull/16466

PR: https://git.openjdk.org/jdk/pull/16466