The first GNU Classpath/Sun Java hybrids have begun to appear. The hybrids combine GNU Classpath with Java code that Sun has recently released under the GPL either to improve an existing project or to further the goal of having a completely Free JDK. First IKVM made a snapshot available, thus allowing parts of the OpenJDK class libraries to be used on Mono and .NET.
Read more »Hybrids Combine GNU Classpath and OpenJDK
http://www.infoq.com –