Are there any other licenses used in the OpenJDK code base besides the ones youve already described?
Yes. The demo and sample code modules are released under the BSD license. These code elements are intended to be very widely distributed, freely modified and used. Accordingly, we’ve chosen the BSD license as most appropriate for these uses. Because these components are not part of the JDK but rather are application programs, they need not be under the GPL license because of the Classpath exception.