I use Jboss 2.4 Jetty 3.1 RC8.1
Why can't jetty find the class TagSupport? It starts
compiling my jsp, but then it tells me it can't find
the class: javax/servlet/jsp/tagext/TagSupport

I have tried adding the javax.servlet.jar to:
o JBOSS_CLASSPATH
o CLASSPATH
o webapplication/Web-inf/lib directory.
The exception below is staying.

java.lang.NoClassDefFoundError: javax/servlet/jsp/tagext/TagSupport
RequestURI=/companion/jsp/pdaintro.jsp

What is the obvious mistake I am making?

Regards,

Cor.