It's good they got a judge who knows a little about programming :D As far as the case in general, I think it's quite interesting, but I personally feel Oracle has somewhat of a case, but to what extent, I don't know.
Another important question apart from whether Oracle has a case, is whether Oracle should have a case when the results of that case are taken in the context of the entire software industry. In other words, is the law giving Oracle a valid claim against Google worth the potential damage caused to software development outside of Oracle and Google?