RFR: 8332084: Ensure JdkConsoleImpl.restoreEcho visibility in a shutdown hook [v9]

[Stuart Marks]

On Fri, 24 May 2024 15:38:16 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> Making sure `restoreEcho` correctly reflects the state in the shutdown thread, which differs from the application's thread that issues the `readPassword()` method.
>
> Naoto Sato has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 11 additional commits since the last revision:
> 
>  - Merge branch 'master' into JDK-8332084-restoreEcho-readLock
>  - Used a dedicate lock for restoreEcho
>  - Merge branch 'master' into JDK-8332084-restoreEcho-readLock
>  - Merge branch 'master' into JDK-8332084-restoreEcho-readLock
>  - copyright year
>  - Merge branch 'master' into JDK-8332084-restoreEcho-readLock
>  - get/setEcho()
>  - Addresses a review comment
>  - Replaced another unused exception with _
>  - Update src/java.base/share/classes/jdk/internal/io/JdkConsoleImpl.java
>    
>    Co-authored-by: ExE Boss <3889017+ExE-Boss at users.noreply.github.com>
>  - ... and 1 more: https://git.openjdk.org/jdk/compare/b2ea52b6...69ec27d6

Latest updates look good.

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Marked as reviewed by smarks (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/19184#pullrequestreview-2077341454