ADDITIONAL SYSTEM INFORMATION :
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04.1 LTS
Release:        22.04
Codename:       jammy

$ java --version
openjdk 19.0.1 2022-10-18
OpenJDK Runtime Environment (build 19.0.1+10-21)
OpenJDK 64-Bit Server VM (build 19.0.1+10-21, mixed mode, sharing)

$ jshell --version
jshell 19.0.1


A DESCRIPTION OF THE PROBLEM :
When running jshell, System.console() should not return null.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Launch jshell (without any redirection)
2. In jshell, enter System.console()

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The expected result is for jshell to behave, apart from its REPL capabilities, as similar to java as possible. That includes the provision of a Console through System.console() to use jshell's REPL to tinker with java.io.Console.
ACTUAL -
The actual result is that in jshell, System.console() returns null, which makes using jshell's REPL to tinker with java.io.Console impossible.

CUSTOMER SUBMITTED WORKAROUND :
* One could write their own Java shell that doesn't have this defect.
* One could use java to tinker with Console.log()
Both workaround defeat the purpose of existence of jshell in this context.