[anonbanker]

CDDL is not a free software licence. it was explicitly created to be GPL-incompatible, in order to preserve Sun's control over their IP.

[the_why_of_y]

https://www.gnu.org/licenses/license-list.html

  Common Development and Distribution License (CDDL), version 1.0 (#CDDL)

    This is a free software license.