Common Development and Distribution License (CDDL)
This is a free software license which is not a strong copyleft; it has some complex > restrictions that make it incompatible with the GNU GPL. That is, a module covered by the GPL and a module covered by the CDDL cannot legally be linked together. We urge you not to use the CDDL for this reason. Also unfortunate in the CDDL is its use of the term "intellectual property".
Tak jako nakonec Apache Software License, Mozilla Public License (cehoz je CDDL jen derivat), BSD license a mnoho dalsich. Nechapu ze zrovna GPL ma by ta spravna a vyvolena. Podle me ma autor projektu pravo si vybrat jakou licenci chce a nikdo by mu do toho nemel kecat ...