Also speaking as a layman, but yes. Fair use has, as one of its four factors, the purpose and character of the use, to which interoperability is of definite rel

Also speaking as a layman, but yes. Fair use has, as one of its four factors, the purpose and character of the use, to which interoperability is of definite relevance. It explains -why- the API was reused, even if the internals are entirely different. Not because it saved Google work, or there was some sort of competitive edge against Java SE to be gained by doing so.