After some more investigations: 1° this library is in classpath package and in the j2(sdk|re)1.4 package; 2° it's non-free (I knew but...); 3° it's needed by tomcat4 (by the way of libcommons-dbcp-java) but t4 will depend on j2(sdk|re)1.4. -- Arnaud Vandyck, STE fi, ULg Formateur Cellule Programmation.