Hi 'hultul', On Sat, 2007-03-31 at 10:18 +0900, hultul wrote: > I'm developing JVM implementation which uses GNU Classpath as runtime > class library. > I have two questions about the license of GPLv2 with GNU Classpath > Exception, though I'm not sure whether those questions are adequate > for GNU Classpath community. Since this is a developer list focused on code it is best is to ask specific legal questions to licensing@xxxxxxxx They are happy to answer any legal question around free software, there is also the Software Freedom Law Center http://www.softwarefreedom.org/ that handles such things. For proprietary software you can also contact the FSF Compliance Lab http://www.fsf.org/licensing/compliance.html > 1. Can I bundle GNU Classpath binary without any modification and my > JVM(thought to be not under GPL), and distribute that not under GPL? > > 2. If I make some proprietary classes(e.g. java.lang.ClassLoader) be > loaded prior to GNU Classpath's classes, am I modify GNU Classpath? If > so, are those proprietary classes and/or JVM implementation should be > under GPL? If you combine GNU Classpath with independent modules to produce an executable you can copy and distribute the resulting executable under terms of your choice. See http://www.gnu.org/software/classpath/license.html and http://www.gnu.org/software/classpath/faq/faq.html#faq2_1 But we do of course hope you will release your program as free software under the GPL whenever possible to share with the community. We try to set things up so that you don't have to override or change any of the core classes directly (they should be [and are!] easily sharable between lots of runtimes). For the connection between ClassLoader and the runtime there is VMClassLoader which handles all VM interaction. See http://www.gnu.org/software/classpath/docs/vmintegration.html Please do let us know if these VM/Platform interfaces are not flexible enough, we would love to help and improve them. Cheers, Mark
