The
servlet API describes all the rules that cover this sort of question -
you should download a copy from java.sun.com
The answer is yes, classes in a jar file in the
yourapplication/WEB-INF/lib
directory will be picked up just like the individual class files in
yourapplication/WEB-INF/classes
directory would. It does have to be type ".jar" - ".zip" will not work.
Bill