I am using Tomcat 3.2.2 to follow the deploy example in the article.
I found a small discrepancy regarding the directory where the compiled
tag library should be placed. The compiled tag library should be placed
under TOMCAT_ROOT/onjava/WEB-INF/classes/ directory and NOT
under TOMCAT_ROOT/onjava/WEB-INF/lib directory as the article mentions. Only
the file taglib.tld should be under the ../lib directory.