It seems the author of JSON-lib removed the "shall be used for Good, not
Evil" license in 2009  because in 2006 Douglas Crockford released a
version of the json.org library licensed under the Apache-2.0 license to
allow its integration with the Apache Abdera project . In the Abdera
repository the NOTICE file  contains this note:
"This software's extensions module contains a JSON writer for Atom XML
that utilizes a JSON parser, Copyright (c) 2002, json.org. The code was
licensed using Apache License by the author Douglas Crockford and made
available at http://json.org/java/apache.zip We have included portions
of the code in the extensions module."
The URL http://json.org/java/apache.zip no longer works, but there are
confirmations this URL contained an Apache licensed version of the
library  and a copy of this file is hosted by the Fedora project .
This confirms the json.org code used in JSON-lib is legitimately
licensed under the Apache-2.0 license.
This is the maintainer address of Debian's Java team
debian-j...@lists.debian.org for discussions and questions.