[jdk20] Integrated: 8298425: System.console().readLine() hangs in jshell

[Jan Lahoda]

On Fri, 9 Dec 2022 13:14:59 GMT, Jan Lahoda <jlahoda at openjdk.org> wrote:

> After https://bugs.openjdk.org/browse/JDK-8295803, JShell snippets like:
> 
> jshell> System.console().readLine()
> 
> 
> hang, as the JLine console is used, and it cannot correctly read from the console while in the remote agent (due to input/output redirection setup for the agent). Until [JDK-8296454](https://bugs.openjdk.org/browse/JDK-8296454) is resolved, the JLine console should be disabled inside the remote agent.
> 
> As the default console requires an attached terminal, and there is no attached terminal inside the agent, `System.console()` should then return `null` inside the JShell's agent, which was the behavior before JDK-8295803.

This pull request has now been integrated.

Changeset: 9bcdfc42
Author:    Jan Lahoda <jlahoda at openjdk.org>
URL:       https://git.openjdk.org/jdk20/commit/9bcdfc428597e1465c8a014d816ef671420d22df
Stats:     49 lines in 2 files changed: 48 ins; 0 del; 1 mod

8298425: System.console().readLine() hangs in jshell

Reviewed-by: naoto, alanb

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PR: https://git.openjdk.org/jdk20/pull/11