RFR: 8321131: Console read line with zero out should zero out underlying buffer in JLine

[Iris Clark]

On Fri, 1 Dec 2023 18:24:48 GMT, Naoto Sato <naoto at openjdk.org> wrote:

> This is the fix to JLine, which makes it on par with the built-in Console fix ([JDK-8320798](https://bugs.openjdk.org/browse/JDK-8320798)).

Marked as reviewed by iris (Reviewer).

src/jdk.internal.le/share/classes/jdk/internal/org/jline/JdkConsoleProviderImpl.java line 114:

> 112:                 return null;
> 113:             } finally {
> 114:                 jline.zeroOut();

The location of the `jline `declaration at new line 134 is unfortunate, but not a problem this PR needs to resolve.  The location makes sense if it was only used in `initJLineIfNeeded()` at some point in the past.

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PR Review: https://git.openjdk.org/jdk/pull/16930#pullrequestreview-1760456573
PR Review Comment: https://git.openjdk.org/jdk/pull/16930#discussion_r1412504396