I placed standard.jar and jstl.jar in the \jboss-4.0.3SP1\server\default\lib folder. But my HelloWorld web application is unable to refer to the jstl code. It gives me
org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/core_rt cannot be resolved in either web.xml or the jar files deployed with this application
There must be something that I missed.
The jstl.jar file is already provide at server/default/deploy/jbossweb-tomcat55.sar/jsf-libs, so you do not need to place it in server/default/lib. I usually package standard.jar with my web app, but you could try placing it into the jsf-libs directory.