(
OPEN Java
Development
Kit) The open source implementation of the Java Development Kit (see
JDK). Introduced in 2006 by Sun, there were missing components because they were based on proprietary source code. In the following year, Red Hat launched "IcedTea," a project to make all software in OpenJDK compliant with the unrestricted GPL license (see
GNU General Public License). In 2008, the entirely open source IcedTea6-based OpenJDK was made available with Red Hat's Fedora 9 distribution. See
open source and
Fedora.