Probably not the solution you were looking for, but this is what I did to get around not being able to figure out the path to my script: renderResponse.setProperty("HEADER_CONTENT", "<script type=\"text/javascript\">"+ script +"</script>"); Above my script has been loaded off the file system by my portlet and I inject the script into the head "manually". Probably not an issue for a short script, but I would imagine that finding the correct path and setting that in your JSP is better in the long run when your server is under heavy use. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4032559#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...