ElasticSearch
Copyright 2009-2010 Elastic Search and Shay Banon

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

This product makes use of the google-collections library from
http://code.google.com/p/google-collections/.
Copyright (C) 2008 Google Inc.

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.

Yaml support uses SnakeYaml Copyright of Andrey Somov under the
Apache 2 License.