Back during JavaOne 2007
, Sun Microsystems had released the fully open-source OpenJDK
that effectively made Java a free software language. Just weeks after that Red Hat announced the IcedTea project
. IcedTea is OpenJDK but mixed in is some of the code from the GNU Classpath plus other changes. While the IcedTea efforts were led by Red Hat, distributions such as Ubuntu have adopted it
for their free software Java stack. Today IcedTea 1.3 was released.
The release announcement for IcedTea 1.3 can be read on the OpenJDK mailing list