Hi, does https://github.com/apache/grails-core/pull/15187 mean that Grails 7 doesn't supporto depending on a micronaut lib based on netty http client ?

Essentially, yes. As a workaround, you can downgrade the Micronaut platform version, specified in

gradle.properties

, from 4.9.2 to 4.7.6 which is compatible with Netty 4.1.x. https://github.com/apache/grails-core/issues/15149#issuecomment-3433579388

downgrading won't work because there was a bug fix for groovy 4 in later versions. Spring is expected to update netty soon - my hope was in the release that's tomorrow

Hi, I'm guessing netty dependency mismatch will stay for the whole grails 7.x, but is there a perspective for grails8? Sorry I'm not really keeping up to date, only have a few days per year maintaining a grails 6 app. Use case is having a (fairly complex ) web client to use in small micronaut apps, clis and a grails app.

Unfortunately, it's spring that's decided that. It will be bumped in Spring Boot 4 (Grails 8 ). I would strongly urge you to open a ticket on the micronaut spring repo since that's what we use. They have to solve this b/c we can't.

Having trouble making an informed decision for a web client easy to integrate to those while having as few deps CVEs as possible

The RestClient from spring is basically micronaut if you include the HttpExchange starter. it's almost a drop in replacement with minor renames. It's shockingly easy