MultivaluedMap exception

I am trying to run one sample of atmosphere but when i run the Restful web services its giving me following error , i guess because of following code its generating error , i don't know what is wrong i am using glassfish 3 and Netbeans IDE , here is the sample link

 @Broadcast({XSSHtmlFilter.class, JsonpFilter.class})
    @Consumes("application/x-www-form-urlencoded")
    @POST
    public String publishMessage(MultivaluedMap<String, String> form) {
        String action = form.getFirst("action");
        String name = form.getFirst("name");

        if ("login".equals(action)) {
            return ("System Message" + "__" + name + " has joined.");
        } else if ("post".equals(action)) {
            return name + "__" + form.getFirst("message");
        } else {
            throw new WebApplicationException(422);
        }
    }



INFO: Couldn't find JAX-B element for class java.lang.String
    SEVERE: The log message is null.
    java.lang.InstantiationException: javax.ws.rs.core.MultivaluedMap
            at java.lang.Class.newInstance0(Class.java:340)
            at java.lang.Class.newInstance(Class.java:308)
            at com.sun.jersey.server.wadl.generators.WadlGeneratorJAXBGrammarGenerator$8.resolve(WadlGeneratorJAXBGrammarGenerator.java:467)
            at com.sun.jersey.server.wadl.WadlGenerator$ExternalGrammarDefinition.resolve(WadlGenerator.java:181)
            at com.sun.jersey.server.wadl.ApplicationDescription.resolve(ApplicationDescription.java:81)
            at com.sun.jersey.server.wadl.generators.WadlGeneratorJAXBGrammarGenerator.attachTypes(WadlGeneratorJAXBGrammarGenerator.java:518)
            at com.sun.jersey.server.wadl.WadlBuilder.generate(WadlBuilder.java:124)
            at com.sun.jersey.server.impl.wadl.WadlApplicationContextImpl.getApplication(WadlApplicationContextImpl.java:104)
            at com.sun.jersey.server.impl.wadl.WadlResource.getWadl(WadlResource.java:89)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:597)
            at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
            at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205)
            at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
            at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288)
            at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
            at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
            at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
            at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469)
            at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400)
            at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349)
            at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339)
            at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
            at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)
            at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:708)
            at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
            at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)
            at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
            at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
            at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
            at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
            at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
            at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
            at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
            at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)
            at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
            at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:232)
            at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)
            at com.sun.grizzly.comet.CometEngine.executeServlet(CometEngine.java:444)
            at com.sun.grizzly.comet.CometEngine.handle(CometEngine.java:308)
            at com.sun.grizzly.comet.CometAsyncFilter.doFilter(CometAsyncFilter.java:87)
            at com.sun.grizzly.arp.DefaultAsyncExecutor.invokeFilters(DefaultAsyncExecutor.java:171)
            at com.sun.grizzly.arp.DefaultAsyncExecutor.interrupt(DefaultAsyncExecutor.java:143)
            at com.sun.grizzly.arp.AsyncProcessorTask.doTask(AsyncProcessorTask.java:94)
            at com.sun.grizzly.http.TaskBase.run(TaskBase.java:193)
            at com.sun.grizzly.http.TaskBase.execute(TaskBase.java:175)
            at com.sun.grizzly.arp.DefaultAsyncHandler.handle(DefaultAsyncHandler.java:145)
            at com.sun.grizzly.arp.AsyncProtocolFilter.execute(AsyncProtocolFilter.java:204)
            at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
            at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
            at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
            at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
            at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
            at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
            at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
            at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
            at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
            at java.lang.Thread.run(Thread.java:619)

    INFO: Couldn't find JAX-B element for class javax.ws.rs.core.MultivaluedMap
    INFO: Couldn't find JAX-B element for class java.lang.String
    INFO: Couldn't find JAX-B element for class java.lang.String
    INFO: Couldn't find JAX-B element for class java.lang.String

Run time error

SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container
java.lang.NullPointerException
        at org.atmosphere.jersey.AtmosphereFilter$Filter.filter(AtmosphereFilter.java:177)
        at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1008)
        at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:941)
        at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:932)
        at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:384)
        at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:451)
        at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:632)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
        at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
        at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
        at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
        at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:232)
        at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)
        at com.sun.grizzly.comet.CometEngine.executeServlet(CometEngine.java:444)
        at com.sun.grizzly.comet.CometEngine.handle(CometEngine.java:308)
        at com.sun.grizzly.comet.CometAsyncFilter.doFilter(CometAsyncFilter.java:87)
        at com.sun.grizzly.arp.DefaultAsyncExecutor.invokeFilters(DefaultAsyncExecutor.java:171)
        at com.sun.grizzly.arp.DefaultAsyncExecutor.interrupt(DefaultAsyncExecutor.java:143)
        at com.sun.grizzly.arp.AsyncProcessorTask.doTask(AsyncProcessorTask.java:94)
        at com.sun.grizzly.http.TaskBase.run(TaskBase.java:193)
        at com.sun.grizzly.http.TaskBase.execute(TaskBase.java:175)
        at com.sun.grizzly.arp.DefaultAsyncHandler.handle(DefaultAsyncHandler.java:145)
        at com.sun.grizzly.arp.AsyncProtocolFilter.execute(AsyncProtocolFilter.java:204)
        at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
        at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
        at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
        at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
        at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
        at java.lang.Thread.run(Thread.java:619)

Try setting the com.sun.enterprise.overrideablejavaxpackages JVM property in GlassFish as advised in the Overriding Jersey with war files section of Jersey user guide and restart GF.