So if I write a small API that for all intents and purposes is identical to one that Oracle owns, but I write it in a different language, is that still infringi

So if I write a small API that for all intents and purposes is identical to one that Oracle owns, but I write it in a different language, is that still infringing on their copyright? It seems that would have to be the case in order for a pro-Oracle ruling to make sense. If not, then everyone has a good reason to stop using Java.