Why does Sun want to dual license NetBeans software under CDDL and GPLv2 with Classpath Exception?
The GPL v2 license will provide an additional option to vendors that are unable to work with NetBeans software under the CDDL license. Adding GPLv2 as a license option will make NetBeans software even more Linux friendly. Adding GPLv2 with Classpath exception to NetBeans software will keep product portfolios and bundles consistent. Sun open sourced its JDK implementation under GPLv2 and the GlassFish project is dual-licensed under CDDL and GPLv2 with Classpath exception.