In ~/.gradle/wrapper/dist/… for some Gradle/Wrapper versions I have multiple (2-7) “instances” downloaded (for the same version). Why Gradle cannot always use already downloaded instance for given version?
Marcin, it is very easy with gradle to write task to clean duplicated wrapper’s 
I’ve observed this several times by now. After bumping the Gradle version, it is sometimes downloaded twice on the first two subsequent Gradle invocations, without any apparent reason. Raised GRADLE-3196. Thanks for the report.