If I enable the Emma plugin, I can't use Hudson's job configuration page because most of the page doesn't render properly, apparently triggered by this exception (full stack trace is attached):

{{
[Winstone 2010/03/08 17:42:27] - Untrapped Error in Servlet
javax.servlet.ServletException: org.apache.commons.jelly.JellyTagException: file:/localhome/hudson/.hudson/plugins/emma/WEB-INF/classes/hudson/plugins/emma/EmmaPublisher/config.jelly:1:143: <j:jelly> can't parse argument number rootURL
}}