问一个gpl的问题

marvel

写了一个程序，想用gpl发布。
但是其中用了一个东西，它的license是


Portions Copyright 2001-2004 Sun Microsystems, Inc.
Portions Copyright 1999-2001 Language Technologies Institute,
Carnegie Mellon University.
All Rights Reserved.  Use is subject to license terms.

Permission is hereby granted, free of charge, to use and distribute
this software and its documentation without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of this work, and to
permit persons to whom this work is furnished to do so, subject to
the following conditions:

1. The code must retain the above copyright notice, this list of
    conditions and the following disclaimer.
2. Any modifications must be clearly marked as such.
3. Original authors' names are not deleted.
4. The authors' names are not used to endorse or promote products
    derived from this software without specific prior written
    permission.

SUN MICROSYSTEMS, INC., CARNEGIE MELLON UNIVERSITY AND THE
CONTRIBUTORS TO THIS WORK DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL SUN MICROSYSTEMS, INC., CARNEGIE MELLON
UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.

我还可以使用gpl吗？
谢谢