The software comprising backport-util-concurrent is based in large
part on the code from JSR166, and the package dl.util.concurrent.
The software has been released to the public domain, as explained at:
http://creativecommons.org/licenses/publicdomain, excepting portions
of the class
edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArrayList,
which were adapted from class java.util.ArrayList, written by Sun
Microsystems, Inc, which are used with kind permission, and subject
to the following:

Copyright 2002-2004 Sun Microsystems, Inc. All rights reserved. Use is
subject to the following license terms.

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