The code is trivial
If the segment of "copied" code shown in the article is representative of the sorts of claims that Oracle is making, then it shouldn't win. The code is utterly trivial, and obvious to anyone with any insight into what its doing. Free software developers and supports _shouldn't_ cheer an Oracle win, because free software is predicated on reimplementation and replacement of non-free software. That's what GNU essentially is. If such trivial reimplementations become subject to copyright then no-one will ever be able to create free alternatives. Of course, it's hard to say whether Google genuinely did a clean room reimplementation, or cut'n'pasted and edited the result a bit like the best high school plagiarism, but the presumption for trivial code should be that it's not been copied - or that it doesn't matter.