9 lines is what was left *after* scrubbing the forensics.
Kinda like the killer that cleans up with bleach and misses a spot.
The whole process was tainted.
Sounds a lot like the scammers that do a global search and replace on character names and places on a story and republish it under their own name.
Plagiarism is a lot like pregnancy; it is binary test.
Yes-or-no.
Either they did none of it or they did it.
And the court found that the evidence proved to their satisfaction the entire body of work was based in some measure on Oracle's code.