Sun BDS style license

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.

  "Sun hereby grants you a non-exclusive, worldwide, non-transferrable
  license to use and distribute the Java Software technologies as part
  of a larger work in source and binary forms, with or without
  modification, provided that the following conditions are met:

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    promote products derived from the Java Software technology without
    specific prior written permission.

   -Redistributions of source or binary code must be accompanied by the
    following notice and disclaimers:

    Portions copyright Sun Microsystems, Inc. Used with kind permission.

    This software is provided AS IS, without a warranty of any kind.  ALL
    EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
    WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PUPOSE OR
    NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
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    FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
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