Mark Reinhold's blog has confirmed this news. He said: ... Sun is open-sourcing its entire Java stack―ME, SE, and EE―under the GNU General Public License, version 2.
The license choice―which has taken many by surprise (gotcha!)―is a giant leap. For more on the big picture, including a link to tomorrow's webcast announcement, please see http://sun.com/opensource/java. ... link: http://blogs.sun.com/mr/entry/one_giant_leap