Oracle's trying to get copyright duration on the exclusive rights to something that falls under patent subject matter, so yeah, they're blurring the lines.
Ultimately, the problem for Oracle is that the APIs are too functional to be eligible for copyright protection, too abstract to be eligible for patent protection, and too generic to be eligible for trademark protection. But that doesn't stop them from trying to get the best features from all the above.
Ultimately, the problem for Oracle is that the APIs are too functional to be eligible for copyright protection, too abstract to be eligible for patent protection, and too generic to be eligible for trademark protection. But that doesn't stop them from trying to get the best features from all the above.