Sun will opensource part of their web stack under a BSD license.
"Sun announced that it is open sourcing the core components of the Sun Java(TM) System Web Server 7.0 and Sun Java(TM) System Web Proxy technologies under a BSD (Berkeley Software Distribution) license in the Web Stack sub-project of the OpenSolaris community. The Web and Proxy source code will be available in CY08Q3."
"We're pleased to announce that the Web Stack project will be taking on the Open Source releases of the Sun Web and Proxy Server.... under a BSD license. Read about this and other plans in the Sun press release"