> software interfaces are no more and no less "immutable facts" than software implementations The crucial litmus test is whether there is creative expression i

> software interfaces are no more and no less "immutable facts" than software implementations The crucial litmus test is whether there is creative expression involved or not. So you have to ask yourself this question: are there multiple choices about how to make the interface or not? And the clear answer is, the very definition of an interface is to fix a single way to transmit some information. No other way works to interface to all the existing systems out there. Given there is no other way that works, there is no creative choice involved and copyright has no application. Now where the argument sets in is that making a binary compatible interface actually doesn't require (in Java) all the variable names to be the same, nor the order of the methods to some extent. Hence all the argument in court about the "sequence and structure" being Oracle's creative expression. And the fact is, Google did copy many of the argument names etc. So you come down to things like, was it creative expression to call the x and y of a Point class 'x' and 'y' or is that part of the interface? Which is all to say, yes you can argue about this. The OP however said there is no argument. I disagree: there's an argument here with valid perspectives from both sides. If you think there's no argument, you don't understand the nature of copyright law (after all, there's a reason this has made it to the supreme court).