license.txt

AGPLv3 with a classpath exception and an additional provision that after 180 days, the license becomes MIT.
 
The AGPLv3 license can be found in the agpl.txt file or under: http://www.gnu.org/licenses/agpl.html
The MIT license can be found in the mit.txt file or under: http://opensource.org/licenses/mit-license.php
The Classpath License can be found below or under: http://www.gnu.org/software/classpath/license.html
 
Explanation: AGPL requires server owners that edit the source code of our projects to post download links to their source in addition to the standard GPL license. The Classpath 
Exception means that anyone can use our project as a library/API without needing to adhere to the license. The provision for 180 days or more means that the source code dated 180 days 
ago is licensed under MIT.
 
------------- GNU Classpath License -------------
Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public 
License cover the whole combination.
 
As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, 
regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, 
for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. 
If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this 
exception statement from your version.