Howdy, y'all.
Indeed, it should be working, Chris is right.
If you put your .jar file in your Tomcat/lib folder, it will work not only for this particular application, but also for all the other applications you may have. But yet, this is a workaround, it should be working if you put the .jar file in the WEB-INF/lib folder of your application.
Well, try unistalling your
Tomcat (you're using Tomcat, right?) and installing it again... it might work...
Cheers, Roberto Perillo
SCJP, SCWCD, SCJD, SCBCD