I've started to do some preliminary review of the DUCC, in preparation for its release.
A scan of the code for the phrase "GPL" turns up some things: Maven detects there's some dependencies on JAXB in the project duccdocs, (which seems unusual?), and finds that JAXB is a dependency (??) which is dual licensed under CDDL and GPL. Does duccdocs really need to have a dependency on JAXB? DataTables-1.9.1 has a 3rd version of jquery.js which includes Sizzle.js licensed under the MIT, BSD, *AND* GPL. If you look at the current Sizzle.js it is only licensed under the MIT license. The jquery.js file is in the source svn 6 times, at multiple (3 or more) versions. Is this desired? -Marshall