Typically the licenses listed for the project are that of the project itself, and not of dependencies.

Project License

Java HTML Tidy - JTidy
HTML parser and pretty printer

Copyright (c) 1998-2000 World Wide Web Consortium (Massachusetts
Institute of Technology, Institut National de Recherche en
Informatique et en Automatique, Keio University). All Rights

Contributing Author(s):

   Dave Raggett <dsr@w3.org>
   Andy Quick <ac.quick@sympatico.ca> (translation to Java)
   Gary L Peskin <garyp@firstech.com> (Java development)
   Sami Lempinen <sami@lempinen.net> (release management)
   Fabrizio Giustina <fgiust at users.sourceforge.net>

The contributing author(s) would like to thank all those who
helped with testing, bug fixes, and patience.  This wouldn't
have been possible without all of you.


This software and documentation is provided "as is," and
the copyright holders and contributing author(s) make no
representations or warranties, express or implied, including
but not limited to, warranties of merchantability or fitness
for any particular purpose or that the use of the software or
documentation will not infringe any third party patents,
copyrights, trademarks or other rights. 

The copyright holders and contributing author(s) will not be
liable for any direct, indirect, special or consequential damages
arising out of any use of the software or documentation, even if
advised of the possibility of such damage.

Permission is hereby granted to use, copy, modify, and distribute
this source code, or portions hereof, documentation and executables,
for any purpose, without fee, subject to the following restrictions:

1. The origin of this source code must not be misrepresented.
2. Altered versions must be plainly marked as such and must
   not be misrepresented as being the original source.
3. This Copyright notice may not be removed or altered from any
   source or altered source distribution.

The copyright holders and contributing author(s) specifically
permit, without fee, and encourage the use of this source code
as a component for supporting the Hypertext Markup Language in
commercial products. If you use this source code in a product,
acknowledgment is not required but would be appreciated.