RFR: 8162380: [TEST_BUG]Failed the case just press the "fail" button on other platform except linux.

[Prasanta Sadhukhan]

Test was made to fail due to presence of only "Fail" button instead of both "Pass" and "Fail".

Modified the test to use PFJ and also clarified the instruction for Windows and Linux

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Commit messages:
 - title fix
 - 8162380: [TEST_BUG]Failed the case just press the fail button on other platform except linux.

Changes: https://git.openjdk.org/jdk/pull/27162/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27162&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8162380
  Stats: 240 lines in 2 files changed: 26 ins; 200 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/27162.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27162/head:pull/27162

PR: https://git.openjdk.org/jdk/pull/27162