RFR: 8332084: Ensure JdkConsoleImpl.restoreEcho visibility in a shutdown hook [v2]

[Naoto Sato]

> 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 incrementally with one additional commit since the last revision:

  Update src/java.base/share/classes/jdk/internal/io/JdkConsoleImpl.java
  
  Co-authored-by: ExE Boss <3889017+ExE-Boss at users.noreply.github.com>

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/19184/files
  - new: https://git.openjdk.org/jdk/pull/19184/files/43f555e4..9daf6997

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19184&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19184&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/19184.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19184/head:pull/19184

PR: https://git.openjdk.org/jdk/pull/19184