Test class: @Path("/test") public class TP { private static Logger log = Logger.getLogger(TP.class); @GET @Produces("text/plain") public String testContext(@Context ServletContext servletContext) { StringBuilder sb = new StringBuilder(); sb.append("init parameters: \n\r"); java.util.Enumeration penum = servletContext.getInitParameterNames(); for ( ; penum.hasMoreElements() { String name = (String)penum.nextElement(); sb.append( name + "=" + servletContext.getInitParameter(name) + "\n\r" ); } return sb.toString(); } } web.xml <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd "> <display-name>testing</display-name> <listener> <listener-class> org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap </listener-class> </listener> <servlet> <servlet-name>Resteasy</servlet-name> <servlet-class>org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher</servlet-class> <init-param> <param-name>aa</param-name> <param-value>pleasework</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>Resteasy</servlet-name> <url-pattern>/service/*</url-pattern> </servlet-mapping> <context-param> <param-name>resteasy.scan</param-name> <param-value>true</param-value> </context-param> <context-param> <param-name>resteasy.servlet.mapping.prefix</param-name> <param-value>/service</param-value> </context-param> </web-app>