View Server portlet runs in unhandled exception if the statistics bean is not 
available
---------------------------------------------------------------------------------------

                 Key: GERONIMO-4188
                 URL: https://issues.apache.org/jira/browse/GERONIMO-4188
             Project: Geronimo
          Issue Type: Bug
      Security Level: public (Regular issues)
          Components: monitoring
            Reporter: YunFeng Ma
             Fix For: 2.2


The steps to recreate the error:
1. Deploy a web application, such as sample1
2. Monitor the web application in Admin Console
3. Stop the web application
4. Click "Monitoring" --> "localhost" , then get the following error:
{noformat}
javax.portlet.PortletException
        at 
org.apache.pluto.internal.impl.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:113)
        at 
org.apache.geronimo.monitoring.console.MonitoringPortlet.doView(MonitoringPortlet.java:337)
        at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:247)
        at javax.portlet.GenericPortlet.render(GenericPortlet.java:175)
        at 
org.apache.pluto.core.PortletServlet.dispatch(PortletServlet.java:208)
        at org.apache.pluto.core.PortletServlet.doGet(PortletServlet.java:139)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at 
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
        at 
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:535)
        at 
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:472)
        at 
org.apache.pluto.core.DefaultPortletInvokerService.invoke(DefaultPortletInvokerService.java:167)
        at 
org.apache.pluto.core.DefaultPortletInvokerService.render(DefaultPortletInvokerService.java:101)
        at 
org.apache.pluto.core.PortletContainerImpl.doRender(PortletContainerImpl.java:173)
        at 
org.apache.pluto.driver.tags.PortletTag.doStartTag(PortletTag.java:152)
        at 
jsp.WEB_002dINF.themes.portlet_002dskin_jsp._jspService(portlet_002dskin_jsp.java:87)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at 
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
        at 
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:535)
        at 
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:472)
        at 
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
        at 
jsp.WEB_002dINF.themes.default_002dtheme_jsp._jspx_meth_c_005fforEach_005f0(default_002dtheme_jsp.java:219)
        at 
jsp.WEB_002dINF.themes.default_002dtheme_jsp._jspService(default_002dtheme_jsp.java:105)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at 
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
        at 
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
        at 
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
        at 
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
        at 
org.apache.pluto.driver.PortalDriverServlet.doGet(PortalDriverServlet.java:151)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at 
org.apache.geronimo.tomcat.valve.DefaultSubjectValve.invoke(DefaultSubjectValve.java:56)
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
        at 
org.apache.geronimo.tomcat.GeronimoStandardContext$SystemMethodValve.invoke(GeronimoStandardContext.java:406)
        at 
org.apache.geronimo.tomcat.valve.GeronimoBeforeAfterValve.invoke(GeronimoBeforeAfterValve.java:47)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:568)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
        at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at 
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
        at java.lang.Thread.run(Thread.java:810)
Caused by: javax.management.InstanceNotFoundException:
geronimo:J2EEApplication=null,J2EEServer=geronimo,j2eeType=WebModule,name=com.ibm.wasce.samples/EMPdemo/2.1.0.0/war
        at 
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1028)
        at 
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:645)
        at 
com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:677)
        at org.apache.openejb.mgmt.MEJBBean.getAttribute(MEJBBean.java:62)
        at sun.reflect.GeneratedMethodAccessor131.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:618)
        at 
org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:1
58)
        at 
org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:141)
        at 
org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:67)
        at 
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:210)
        at 
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:188)
        at 
org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:165)
        at 
org.apache.openejb.core.ivm.EjbObjectProxyHandler.businessMethod(EjbObjectProxyHandler.java:217)
        at 
org.apache.openejb.core.ivm.EjbObjectProxyHandler._invoke(EjbObjectProxyHandler.java:77)
        at 
org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:245)
        at 
org.apache.openejb.util.proxy.Jdk13InvocationHandler.invoke(Jdk13InvocationHandler.java:49)
        at $Proxy21.getAttribute(Unknown Source)
        at 
org.apache.geronimo.monitoring.MasterRemoteControl.getStats(MasterRemoteControl.java:142)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:618)
        at 
org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:1
58)
        at 
org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:141)
        at 
org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:67)
        at 
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:210)
        at 
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:188)
        at 
org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:165)
        at 
org.apache.openejb.server.ejbd.EjbRequestHandler.doEjbObject_BUSINESS_METHOD(EjbRequestHandler.java:238)
        at 
org.apache.openejb.server.ejbd.EjbRequestHandler.processRequest(EjbRequestHandler.java:129)
        at 
org.apache.openejb.server.ejbd.EjbDaemon.processEjbRequest(EjbDaemon.java:164)
        at org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:122)
        at org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:84)
        at org.apache.openejb.server.ejbd.EjbServer.service(EjbServer.java:60)
        at org.apache.openejb.server.ServicePool$2.run(ServicePool.java:78)
        at org.apache.openejb.server.ServicePool$3.run(ServicePool.java:101)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
        ... 1 more

Nested Exception is javax.management.InstanceNotFoundException:
geronimo:J2EEApplication=null,J2EEServer=geronimo,j2eeType=WebModule,name=com.ibm.wasce.samples/EMPdemo/2.1.0.0/war
        at 
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1028)
        at 
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:645)
        at 
com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:677)
        at org.apache.openejb.mgmt.MEJBBean.getAttribute(MEJBBean.java:62)
        at sun.reflect.GeneratedMethodAccessor131.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:618)
        at 
org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:1
58)
        at 
org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:141)
        at 
org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:67)
        at 
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:210)
        at 
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:188)
        at 
org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:165)
        at 
org.apache.openejb.core.ivm.EjbObjectProxyHandler.businessMethod(EjbObjectProxyHandler.java:217)
        at 
org.apache.openejb.core.ivm.EjbObjectProxyHandler._invoke(EjbObjectProxyHandler.java:77)
        at 
org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:245)
        at 
org.apache.openejb.util.proxy.Jdk13InvocationHandler.invoke(Jdk13InvocationHandler.java:49)
        at $Proxy21.getAttribute(Unknown Source)
        at 
org.apache.geronimo.monitoring.MasterRemoteControl.getStats(MasterRemoteControl.java:142)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:618)
        at 
org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:1
58)
        at 
org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:141)
        at 
org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:67)
        at 
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:210)
        at 
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:188)
        at 
org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:165)
        at 
org.apache.openejb.server.ejbd.EjbRequestHandler.doEjbObject_BUSINESS_METHOD(EjbRequestHandler.java:238)
        at 
org.apache.openejb.server.ejbd.EjbRequestHandler.processRequest(EjbRequestHandler.java:129)
        at 
org.apache.openejb.server.ejbd.EjbDaemon.processEjbRequest(EjbDaemon.java:164)
        at org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:122)
        at org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:84)
        at org.apache.openejb.server.ejbd.EjbServer.service(EjbServer.java:60)
        at org.apache.openejb.server.ServicePool$2.run(ServicePool.java:78)
        at org.apache.openejb.server.ServicePool$3.run(ServicePool.java:101)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
        at java.lang.Thread.run(Thread.java:810)
{noformat}

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