Remove Spring Boot specific documentation from Spring Shell documentation

[AlexFalappa]

The chapter on logging in the reference docs says that setting an empty console pattern can be used to disable the console logging of Spring Boot applications but this infact does not work for recent Spring Boot versions (tested on 4.x).

The correct way should probably be setting logging.console.enabled to false.

In my case setting logging.pattern.console= in application.properties produces:

$> $JAVA_HOME/bin/java --enable-native-access=ALL-UNNAMED -jar target/app-0.0.1-SNAPSHOT.jar create-user
12:46:50,591 |-ERROR in ch.qos.logback.classic.PatternLayout("") - Empty or null pattern.

[ThomasVitale]

Thanks for raising the issue! The documentation is indeed wrong for Spring Boot 4.

Related issue in Spring Boot for more context: spring-projects/spring-boot#46592 (comment)

[fmbenhassine]

Nothing specific to Spring Shell in here: https://docs.spring.io/spring-shell/reference/customization/logging.html

I really don't understand the value of that page in the reference documentation of Spring Shell. And how come a reference documentation suggests to pass an empty value to a property to disable it?

@ThomasVitale Thank you for the follow up on this and for linking to that issue in Boot.

I see from spring-projects/spring-boot#46592 (comment) that logging.console.enabled can be set to false now, which is the correct way to proceed.

I will remove https://docs.spring.io/spring-shell/reference/customization/logging.html from the docs because it's nothing but confusing and has no place to be in Spring Shell's reference documentation.