Re:Java Is Still Free
by simion314 on Monday October 15, 2018 @07:46AM
(#18218931)
There are some rules if you want to re implement Java, but it is possible since we have many alternatives to chose from.
T^he main point is to pass all the needed tests to confirm your re-implementation is compatible and not do what MS tried to do (embrace,extend,extinguish)
[ Parent
| on HN ]
You missed that you will be arbitrarily denied the ability to actually run those tests if you're trying to make a true open source implementation - see Apache Harmony.
The TCK has been open sourced, since then. However, I think only for GPL implementations, see details at http://openjdk.java.net/groups/conformance/JckAccess/
That doesn't sound like an open source license at all - you have to submit a form to Oracle and they'll decide whether you get a copy or not.
That is old news, do you have an uptodate link?