Oracle also has a vested interest in defending an expansive view of intellectual property rights. They lean very heavily on litigation as part of their business model and will want to reserve the right to sue anyone generating software that competes with theirs when the model may have been trained on anything they hold the copyright to.

If they held here that it is OK to use LLM generated code for OpenJDK it could kill these cases later as they will have established that they believe it is fair use.