RFR: 8295803: Console should be usable in jshell and other environments [v2]

[Alan Bateman]

On Wed, 30 Nov 2022 20:44:30 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> This is to allow Console to be used even when it is not attached to the platform provided terminal, such as the case when the standard input is redirected. `System.console()` now returns a Console implementation based on `jdk.internal.le` terminal by default, or jshell implementation if available. A corresponding CSR has been drafted.
>
> Naoto Sato has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Adds a test
>  - Removed JavaIOAccess.charset() which is no longer needed

A general point is that it's difficult to test Console and it looks like we don't have many existing tests in test/jdk/java/io/Console. The test that is there doesn't seem to exercise most of the methods. I wonder should improve this and have the tests run with `--limit-modules java.base` so they run with the default the is in java.base rather than the provider in jdk.intenal.le.

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PR: https://git.openjdk.org/jdk/pull/11421