I also meet it,when I test too many Concurrency by loadrunner.
details:
[#|2008-10-09T14:02:38.221+0800|SEVERE|sun-appserver9.1|javax.enterprise.system.container.web.pwc|_ThreadID=15;_ThreadName=Thread-11;_RequestID=58c944c8-691f-460f-9f0f-663d9a5f9394;|PWC1001: Failed to invoke action getSession on MBean com.sun.appserv:type=Manager,path=/EPG,host=server
javax.management.RuntimeOperationsException: Exception invoking method getSession
at com.sun.org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:511)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.enterprise.admin.util.proxy.ProxyClass.invoke(ProxyClass.java:90)
at $Proxy1.invoke(Unknown Source)
at com.sun.enterprise.admin.server.core.jmx.SunoneInterceptor.invoke(SunoneInterceptor.java:304)
at com.sun.enterprise.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:174)
at com.sun.enterprise.web.monitor.impl.PwcWebModuleStatsImpl.getSession(PwcWebModuleStatsImpl.java:345)
at com.sun.enterprise.web.stats.WebModuleStatsImpl.getSessions(WebModuleStatsImpl.java:306)
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.enterprise.admin.monitor.stats.GenericStatsImpl.getStatistic(GenericStatsImpl.java:119)
at com.sun.enterprise.admin.monitor.stats.GenericStatsImpl.getStatisticsOneByOne(GenericStatsImpl.java:145)
at com.sun.enterprise.admin.monitor.stats.GenericStatsImpl.getStatistics(GenericStatsImpl.java:136)
at com.sun.enterprise.web.stats.WebModuleStatsImpl.getStatistics(WebModuleStatsImpl.java:347)
at com.sun.enterprise.admin.monitor.registry.spi.StatsHolderMBeanImpl.getStatistics(StatsHolderMBeanImpl.java:398)
at com.sun.enterprise.admin.monitor.registry.spi.StatsHolderMBeanImpl.invoke(StatsHolderMBeanImpl.java:213)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.enterprise.admin.util.proxy.ProxyClass.invoke(ProxyClass.java:90)
at $Proxy1.invoke(Unknown Source)
at com.sun.enterprise.admin.server.core.jmx.SunoneInterceptor.invoke(SunoneInterceptor.java:304)
at com.sun.enterprise.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:174)
at com.sun.enterprise.management.support.DelegateToMBeanDelegate.invoke(DelegateToMBeanDelegate.java:184)
at com.sun.enterprise.management.support.MappedDelegate.invoke(MappedDelegate.java:389)
at com.sun.enterprise.management.support.DelegateInvocationHandler.invoke(DelegateInvocationHandler.java:98)
at com.sun.enterprise.management.monitor.$Proxy14.getStatistics(Unknown Source)
at com.sun.enterprise.management.monitor.MonitoringStatsImplBase.checkUnderlyingMBean(MonitoringStatsImplBase.java:347)
at com.sun.enterprise.management.monitor.MonitoringStatsImplBase.preRegisterHook(MonitoringStatsImplBase.java:912)
at com.sun.enterprise.management.support.AMXImplBase.preRegister(AMXImplBase.java:2215)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.preRegisterInvoke(DefaultMBeanServerInterceptor.java:1010)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:938)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:917)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:312)
at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:482)
at com.sun.enterprise.interceptor.DynamicInterceptor.registerMBean(DynamicInterceptor.java:263)
at com.sun.enterprise.management.support.Loader.registerNew(Loader.java:438)
at com.sun.enterprise.management.support.LoaderOfOld.registerNew(LoaderOfOld.java:212)
at com.sun.enterprise.management.support.LoaderOfOld.ensureNew(LoaderOfOld.java:397)
at com.sun.enterprise.management.support.LoaderOfOld.syncWithOld(LoaderOfOld.java:420)
at com.sun.enterprise.management.support.Loader._sync(Loader.java:542)
at com.sun.enterprise.management.support.Loader.sync(Loader.java:516)
at com.sun.enterprise.management.support.Loader.handleMBeanRegistered(Loader.java:220)
at com.sun.enterprise.management.support.LoaderRegThread.processRegistration(LoaderRegThread.java:184)
at com.sun.enterprise.management.support.LoaderRegThread.processItem(LoaderRegThread.java:227)
at com.sun.enterprise.management.support.LoaderRegThread.processFOREVER(LoaderRegThread.java:265)
at com.sun.enterprise.management.support.LoaderRegThread.run(LoaderRegThread.java:311)
Caused by: java.lang.IllegalStateException: PWC2779: getAttributeNames: Session already invalidated
at org.apache.catalina.session.StandardSession.getAttributeNames(StandardSession.java:1226)
at org.apache.catalina.session.StandardSessionFacade.getAttributeNames(StandardSessionFacade.java:169)
at org.apache.catalina.session.ManagerBase.getSession(ManagerBase.java:1363)
at sun.reflect.GeneratedMethodAccessor121.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
... 54 more
|#]
who can help me?
thanks.
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