Exception sending context destroyed event to listener instance of class org.jboss.seam.example.jpa.StartupServletContextListener

[urwitharup]

Hi,

  I am starting Seam using MockServlet in servlet listener and handling LifeCycle using ContextualHttpServletRequest in a servlet filter. My application deployed on Tomcat6. While shutting down Tomcat. I am getting an exception due to null ServletContext.

The sample codes are in below

[Seam startup::ServletContextListener]

MockServletContext servletContext = new MockServletContext();
ServletLifecycle.beginApplication(servletContext);
new Initialization(servletContext).create().init();

[LifeCycle Startup:: Filter]

ContextualHttpServletRequest ctx = new ContextualHttpServletRequest((HttpServletRequest) request) {
                @Override
                public void process() throws Exception
                {
                    chain.doFilter(request, response);
                }
            };
            ctx.run();

[Seam shutdown :: ServletContextListener]

ServletLifecycle.endApplication();

[The exception while shutting down the tomcat]

Oct 20, 2009 4:29:33 PM org.apache.catalina.core.StandardContext listenerStop
SEVERE: Exception sending context destroyed event to listener instance of class org.jboss.seam.example.jpa.StartupServletContextListener
java.lang.NullPointerException
        at org.jboss.seam.servlet.ServletApplicationMap.keySet(ServletApplicationMap.java:65)
        at org.jboss.seam.contexts.BasicContext.getNames(BasicContext.java:58)
        at org.jboss.seam.contexts.Contexts.destroy(Contexts.java:241)
        at org.jboss.seam.contexts.Lifecycle.endApplication(Lifecycle.java:61)
        at org.jboss.seam.contexts.ServletLifecycle.endApplication(ServletLifecycle.java:149)
        at org.jboss.seam.contexts.ServletLifecycle.endApplication(ServletLifecycle.java:144)
        at org.jboss.seam.example.jpa.AppStartup.shutdown(AppStartup.java:92)
        at org.jboss.seam.example.jpa.StartupServletContextListener.contextDestroyed(StartupServletContextListener.java:45)
        at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:3973)
        at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4577)
        at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1098)
        at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1098)
        at org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:448)
        at org.apache.catalina.core.StandardService.stop(StandardService.java:584)
        at org.apache.catalina.core.StandardServer.stop(StandardServer.java:744)
        at org.apache.catalina.startup.Catalina.stop(Catalina.java:633)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:608)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

Regards
Arup