They never claimed their implementation to be Java compatible, and there is no legal precedent entitling one to demand all implementations of a library to be co

They never claimed their implementation to be Java compatible, and there is no legal precedent entitling one to demand all implementations of a library to be compatible even when they do not claim compatibility. GNU/Linux certainly has never paid to be Unix(TM) certified, and despite SCO's repeated legal assaults, the API itself was never in dispute.