Sigh. The Java platform is not proprietary, but ok, the specification process is led by Sun. The reference implementation can however, be said to be proprietary. In fact it is "almost" open source, since you are allowed to modify the source code and (under some restrictions) redistribute modified code. There are lots of open source projects using Java. Just look to Apache!!
Why all this hostility against Java?
Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds