[jdk21u-dev] RFR: 8321409: Console read line with zero out should zero out underlying buffer in JLine (redux)

[Goetz Lindenmaier]

A change we should have in 21, too.

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Commit messages:
 - Backport 4ed38f5ad5f822ab948257ed39717ea919fd32ed

Changes: https://git.openjdk.org/jdk21u-dev/pull/69/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=69&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8321409
  Stats: 12 lines in 3 files changed: 11 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/69.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/69/head:pull/69

PR: https://git.openjdk.org/jdk21u-dev/pull/69