CheckMate

If you are using an Okapi Tool after the M9 release, you should be using the wiki online help:
http://www.opentag.com/okapi/wiki/index.php?title=CheckMate

This software is distributed under the GNU Lesser General Public License. Copyright (C) 2005-2010 by the Okapi Framework contributors.

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

For additional information on the license, please see: http://www.gnu.org/licenses/lgpl-3.0-standalone.html.

The source code for this software is available for download here: http://code.google.com/p/okapi/source/checkout, and you can also browse through the versions repository here: http://code.google.com/p/okapki/source/browse/.