> Look at it this way, if oracle loses, then what’s the implications of the software licenses in general. The whole point is that they were protected by copyright. If that’s shot down, then what’s at stake?

An Oracle loss would not damage the legal framework that the software industry has been operating under. Oracle's loss would only confirm the non-existence of a new class of copyright that Oracle is trying to invent (one that appears to be patent protections with copyright duration, enforced in part by trademarks). An Oracle loss would not undermine the legal foundations of existing copyrights on code that implements an API.

Software licenses still work exactly the way we've always thought they do if the federal circuits ruling is shot down. Copyright still works exactly the way we've always thought it done.

No one has ever thought that you could stop people from copying APIs. If they did all sorts of things like Linux (hi Unix), Wine, Windows Subsystem For Linux, AMD x86 CPUs (ok, Intel might have licensed them to avoid anti trust issues), Intel x64 CPUs, and so on would not exist.

Also Intel licensed x64 from AMD...

Those were patent licenses, not copyright.

Oracle isn't complaining about their software copyright. They are complaining about their API copyright. They believe that they own the idea of a tool os where one tool is called "println" and another tool is called "math.sqrt". Their work was never copied, only their naming scheme.