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Well, it is most important for task containers that you register new elements instead of creating them to leverage task configuration avoidance. For practically all other containers the same lazy vs. eager APIs are available, but it is not too relevant right now which you use as long as Gradle does not lazify the usage of these containers. If it does though, it is beneficial if you already used lazy APIs where possible. So in your case you could either use create, or use register but then

.get()

the value to use

extendsFrom

.