Apache Cassandra Copyright 2009 The Apache Software Foundation This product includes software developed by The Apache Software Foundation (http://www.apache.org/). Parser generation is provided by ANTLR, (http://www.antlr.org/). Copyright (c) 2003-2006 Terence Parr 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