My build framework has dozens of plugins from about 5 different sources. Since moving to 4.0, i get this warning. Now I fixed it in every place i could find. Is there a way to debug what plugin from what vendor is causing the error?
I think you are referring to a chaneg imn Gradle 4.0 itself -> https://docs.gradle.org/4.0/release-notes.html#multiple-class-directories-for-a-single-source-set. The link contains a way of turning off the behaviour
You should be able to pinpoint the origin of the deprecation message by running with -s.