500 Servlet Exception

/var/resin/hosts/www.caucho.com/webapps/resin-3.1/WEB-INF/work/_jsp/_examples/_jmx_22dmbean_22dserver/_index__jsp.java:9:
error: package javax.webbeans does not exist
import javax.webbeans.In;
                     ^
/var/resin/hosts/www.caucho.com/webapps/resin-3.1/WEB-INF/work/_jsp/_examples/_jmx_22dmbean_22dserver/_index__jsp.java:11:
error: package example does not exist
import example.TestAdmin;
              ^
/examples/jmx-mbean-server/index.jsp:3: error: cannot find symbol
  @In MBeanServer _server;
   ^
  symbol:   class In
  location: class _index__jsp
3 errors


Resin/4.0.65 Server: 'app-0'