RFR: 8354469: Keytool exposes the password in plain text when command is piped using | grep [v3]

[Weijun Wang]

> Allow password hiding even if there is no `System.console`. A manual test is included.

Weijun Wang has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains three commits:

 - Merge branch 'master' into 8354469
 - decouple PassFailJFrame.java change; simplify code flow
 - the fix

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Changes: https://git.openjdk.org/jdk/pull/27196/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27196&range=02
  Stats: 250 lines in 2 files changed: 221 ins; 5 del; 24 mod
  Patch: https://git.openjdk.org/jdk/pull/27196.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27196/head:pull/27196

PR: https://git.openjdk.org/jdk/pull/27196