What is this CDDL thing, anyway?
The CDDL License has been talked about quite a bit since Sun submitted it to the OSI (the independant body that validates Open Source licenses). At it's heart, it's basicly just the Mozilla Public license (in use for things like Firefox), with some bugfixes.
For a really good description of the process Sun used in coming up with the CDDL for OpenSolaris, check out Claire Giordano's Blog on CDDL.
Why did we pick CDDL for GlassFish? Well, there were quite a few good reasons, but two of the bigger ones were that we liked the copyleft provisions, and that we thought that the OSI had a point about license proliferation. We already had chosen CDDL for OpenSolaris, and the more we looked at CDDL, the more we liked it.
Still have questions? I'd love to hear them.