Arrgh.  The same issue in <i>principle</i>, but not in <i>practice</i>.  &quot;All the developers&quot; of OpenZFS are Oracle Corporation, plus a few dozen other folks we can grep from the commit log.  And if they don&#x27;t consent and Oracle does, surely the community can duplicate the effort quickly.  In practice (that word again) all the meaningful copyright to ZFS sits inside Oracle headquarters.   It&#x27;s just not the same.<p>(Also, as another poster points out, it&#x27;s possible that all OpenZFS copyright is already assigned to Oracle -- I have no particular knowledge)