> "Google copied approximately 11,500 lines of declaring code from the API, which amounts to virtually all the declaring code needed to call up hundreds of different tasks. Those 11,500 lines, however, are only 0.4 percent of the entire API at issue, which consists of 2.86 million total lines. In considering “the amount and substantiality of the portion used” in this case, the 11,500 lines of code should be viewed as…
> Google copied these lines not because of their creativity or beauty but because they would allow programmers to bring their skills to a new smartphone computing environment. Also known as compatibility and interoperability. I'm so happy to see that judges understand their importance.
Actually, not really. Both this ruling and the lower courts' rulings in the case operated under the strange assumption that Android was not interoperable with Oracle Java, leaving programmer familiarity as the only reason Google copied the APIs. For example, in the Federal Circuit ruling that the Supreme Court just overruled, they complain that Google "points to no Java apps that either pre-dated or post-dated Android that could run on the Android platform". True; but of course third-party libraries often can run on both Android and Oracle Java, and their importance seems to have been lost on everyone involved in the case... including Google's own lawyers.
Thankfully, Google won anyway, so any defendant in a future case who can make a better interoperability argument will be in an even stronger position.