Apache Cassandra
Copyright 2009, 2010 The Apache Software Foundation

This product includes software developed by The Apache Software
Foundation (http://www.apache.org/).

Some alternate data structures provided by high-scale-lib from
http://sourceforge.net/projects/high-scale-lib/.
Written by Cliff Click and released as Public Domain.

Some alternate data structures provided by concurrentlinkedhashmap
from http://code.google.com/p/concurrentlinkedhashmap/.
Copyright 2009 Benjamin Manes

Alternative collection types provided by google-collections from
http://code.google.com/p/google-collections/.
Copyright (C) 2007 Google Inc.

JSON (de)serialization provided by jackson (http://jackson.codehaus.org).
Copyright (C) 2010 Tatu Saloranta and others.

Alternative JSON (de)serialization by json-simple from
(http://code.google.com/p/json-simple).
Copyright (C) 2009 Fang Yidong and Chris Nokleberg