Picocli example app readme is incorrect

[emmanuelbernard]

Describe the bug

Create app from code.quarkus.io with picocli selected and with Gradle: the readme instructions are incorrect and with bad error report.

Expected behavior

Readme should show proper Gradle syntax

Actual behavior

Gradle syntax is incorrect, it should be

## incorrect one  (both use of -D and use of help)
./gradlew quarkusDev -Dquarkus.args=='help'

## correct one
./gradlew quarkusDev --quarkus-args='-h'

To Reproduce

Create app from code.quarkus.io with picocli selected and with Gradle.

Quarkus version or git rev

1.12.2.Final

Build tool (ie. output of mvnw --version or gradlew --version)

gradlew

[emmanuelbernard]

@ia3andy is that for you?

[maxandersen]

a bit surprised - @aloubyansky shouldn't -D work for gradle plugin too here?

[ia3andy]

Good catch! I'll fix it..

[maxandersen]

Good catch! I'll fix it..

but shouldn't -D not work too?

[ia3andy]

@maxandersen I have no idea :)

[ia3andy]

@maxandersen ok you are right it should work with (

./gradlew quarkusDev -Dquarkus.args='hello --first-name=andy'

I think it's a quarkus core bug with gradle and command mode.

Here is a sample reproducer https://github.com/ia3andy/try-picocli-gradle

cc @stuartwdouglas @glefloch

[ia3andy]

ahh it works with:

./gradlew quarkusDev --quarkus-args='hello --first-name=andy'

I found this in the template: https://github.com/quarkusio/quarkus/blob/main/devtools/platform-descriptor-json/src/main/resources/codestarts/quarkus/examples/picocli-example/base/README.tpl.qute.md

Which I should fix :)