License Class: Common Development and Distribution Licenses (CDDL)Developed by Sun Microsystems, the Common Development and Distribution License (CDDL) is based on the Mozilla Public License (MPL) version 1.1. Sun considers this to be Version 2 of the Sun Public License, which was also based on the MPL. Though it is a 'copyleft' license, the provisions are weaker than classic copyleft licenses like General Public License (GPL). Copyleft licenses - of which the GPL is the most commonly used - require any work originating in the licensed code to be made available under the same provisions.
Some additional facts regarding the license include:
- The Open Source Initiative (OSI) has approved this license as an Open Source license. Open Source approved licenses comply with the OSI criteria. Such criteria include provisions supporting both the free redistribution of aggregate and derived products, and the requirement that source code be made available with the distributions of aggregate and derivative products.
- The Free Software Foundation (FSF) has classified this license as a Free Software license. Free Software licenses meet the FSF's criteria for supporting the user's freedom to run, study, redistribute and improve the program.