Look at the Google/Oracle case about their replicating of the Java API. There was significant debate over whether they made a clean room implementation or wheth

Look at the Google/Oracle case about their replicating of the Java API. There was significant debate over whether they made a clean room implementation or whether they just copied Oracle's code. If you could stand up in a court room and truthfully say "I've never seen the source code I am accused of copying" it would be to your benefit.