You might want to find a different example until it is settled. From the wikipedia article on the matter Oracle currently is currently winning From wikipedia: the judgement was released on May 9, 2014. The circuit court reversed the district court on the central issue, holding that the "structure, sequence and organization" of an API was copyrightable. It also ruled for Oracle regarding the small amount of literal copying, holding that it was not de minimis. The case was remanded back to the district court for reconsideration of the fair use defense