I'm not sure what is being contested in the case any more. Larry Page testified that their implementation of Java was a clean room implementation. Is Oracle trying to assert that an API is something that is subject to copyright?
This does not seem like it should fly, in my inexpert opinion.
For instance, Oracle copied SQL from IBM years before it was a standard. There's also Sun's involvement in Wabi. I'm sure Microsoft wouldn't mind extracting some cash for that "infringement".