I have the following problem and no idea what it means. This exception will be thrown only after the application sits still for a while without being touched by the users. I think the serialization/de-serialization happens, and somehow inbetween it has problem to proceed. By the way I am using DataModel feature of Seam with a stateful session bean. Please shed some light if you have any clue. Appreciated.
12:42:14,113 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception javax.faces.el.EvaluationException: Cannot get value for expression '#{dealadmin.lookupValue.runSta tusDescriptions}' at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:402) at javax.faces.component.UISelectItems.getValue(UISelectItems.java:55) at org.apache.myfaces.shared_impl.util.SelectItemsIterator.hasNext(SelectItemsIterator.java :102) at org.apache.myfaces.shared_impl.renderkit.RendererUtils.internalGetSelectItemList(Rendere rUtils.java:477) at org.apache.myfaces.shared_impl.renderkit.RendererUtils.getSelectItemList(RendererUtils.j ava:453) at org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.internalRenderSelect(Htm lRendererUtils.java:277) at org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.renderMenu(HtmlRendererU tils.java:251) at org.apache.myfaces.shared_impl.renderkit.html.HtmlMenuRendererBase.encodeEnd(HtmlMenuRen dererBase.java:54) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536) at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:495) at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:363) at org.apache.jsp.datamng.RunDetails_jsp._jspx_meth_h_selectOneMenu_1(RunDetails_jsp.java:1 910) at org.apache.jsp.datamng.RunDetails_jsp._jspService(RunDetails_jsp.java:473) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173 ) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java :463) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalCo ntextImpl.java:416) at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java :234) at org.jboss.seam.jsf.SeamViewHandler.renderView(SeamViewHandler.java:59) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173 ) at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173 ) at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:30) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173 ) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173 ) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.j ava:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Ht tp11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) Caused by: javax.faces.el.EvaluationException: Exception getting value of property lookupValue of b ase of type : $Proxy662 at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:96) at org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELParserHelper.java:532) at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145) at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:383) ... 53 more Caused by: javax.faces.el.EvaluationException: Bean: $Proxy662, property: lookupValue at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:442) at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:82) ... 56 more Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:438) ... 57 more Caused by: java.lang.RuntimeException: org.jboss.serial.exception.SerializationException: Could not create instance of java.util.HashMap$KeySet - java.util.HashMap$KeySet at org.jboss.ejb3.stateful.StatefulBeanContext.extractBeanAndInterceptors(StatefulBeanConte xt.java:365) at org.jboss.ejb3.stateful.StatefulBeanContext.getInstance(StatefulBeanContext.java:309) at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.j ava:75) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.ja va:78) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java: 106) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:188) at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:98) at $Proxy662.getLookupValue(Unknown Source) ... 62 more Caused by: org.jboss.serial.exception.SerializationException: Could not create instance of java.uti l.HashMap$KeySet - java.util.HashMap$KeySet at org.jboss.serial.classmetamodel.ClassMetaData.newInstance(ClassMetaData.java:327) at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:2 39) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStream ing(ObjectDescriptorFactory.java:411) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDes criptorFactory.java:81) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataC ontainer.java:639) at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersis ter.java:353) at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.jav a:273) at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:2 41) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStream ing(ObjectDescriptorFactory.java:411) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDes criptorFactory.java:81) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataC ontainer.java:639) at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersis ter.java:353) at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.jav a:273) at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:2 41) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStream ing(ObjectDescriptorFactory.java:411) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDes criptorFactory.java:81) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataC ontainer.java:639) at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersis ter.java:353) at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.jav a:273) at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:2 41) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStream ing(ObjectDescriptorFactory.java:411) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDes criptorFactory.java:81) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataC ontainer.java:639) at org.jboss.serial.persister.ArrayPersister.readObjectArray(ArrayPersister.java:196) at org.jboss.serial.persister.ArrayPersister.readData(ArrayPersister.java:172) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStream ing(ObjectDescriptorFactory.java:411) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDes criptorFactory.java:81) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataC ontainer.java:639) at org.jboss.serial.io.JBossObjectInputStream.readObjectOverride(JBossObjectInputStream.jav a:165) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:342) at org.jboss.serial.io.MarshalledObject.get(MarshalledObject.java:68) at org.jboss.ejb3.stateful.StatefulBeanContext.extractBeanAndInterceptors(StatefulBeanConte xt.java:342) ... 74 more Caused by: java.lang.InstantiationException: java.util.HashMap$KeySet at java.lang.Class.newInstance0(Class.java:335) at java.lang.Class.newInstance(Class.java:303) at org.jboss.serial.classmetamodel.ClassMetaData.newInstance(ClassMetaData.java:319) ... 105 more 12:42:14,123 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception javax.faces.FacesException: Cannot get value for expression '#{dealadmin.lookupValue.runStatusDescr iptions}' at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalCo ntextImpl.java:435) at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java :234) at org.jboss.seam.jsf.SeamViewHandler.renderView(SeamViewHandler.java:59) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173 ) at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173 ) at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:30) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173 ) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173 ) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.j ava:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Ht tp11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) Caused by: javax.faces.el.EvaluationException: Cannot get value for expression '#{dealadmin.lookupV alue.runStatusDescriptions}' at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:402) at javax.faces.component.UISelectItems.getValue(UISelectItems.java:55) at org.apache.myfaces.shared_impl.util.SelectItemsIterator.hasNext(SelectItemsIterator.java :102) at org.apache.myfaces.shared_impl.renderkit.RendererUtils.internalGetSelectItemList(Rendere rUtils.java:477) at org.apache.myfaces.shared_impl.renderkit.RendererUtils.getSelectItemList(RendererUtils.j ava:453) at org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.internalRenderSelect(Htm lRendererUtils.java:277) at org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.renderMenu(HtmlRendererU tils.java:251) at org.apache.myfaces.shared_impl.renderkit.html.HtmlMenuRendererBase.encodeEnd(HtmlMenuRen dererBase.java:54) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536) at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:495) at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:363) at org.apache.jsp.datamng.RunDetails_jsp._jspx_meth_h_selectOneMenu_1(RunDetails_jsp.java:1 910) at org.apache.jsp.datamng.RunDetails_jsp._jspService(RunDetails_jsp.java:473) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173 ) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java :463) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalCo ntextImpl.java:416) ... 28 more Caused by: javax.faces.el.EvaluationException: Exception getting value of property lookupValue of b ase of type : $Proxy662 at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:96) at org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELParserHelper.java:532) at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145) at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:383) ... 53 more Caused by: javax.faces.el.EvaluationException: Bean: $Proxy662, property: lookupValue at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:442) at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:82) ... 56 more Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:438) ... 57 more Caused by: java.lang.RuntimeException: org.jboss.serial.exception.SerializationException: Could not create instance of java.util.HashMap$KeySet - java.util.HashMap$KeySet at org.jboss.ejb3.stateful.StatefulBeanContext.extractBeanAndInterceptors(StatefulBeanConte xt.java:365) at org.jboss.ejb3.stateful.StatefulBeanContext.getInstance(StatefulBeanContext.java:309) at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.j ava:75) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.ja va:78) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java: 106) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:188) at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:98) at $Proxy662.getLookupValue(Unknown Source) ... 62 more Caused by: org.jboss.serial.exception.SerializationException: Could not create instance of java.uti l.HashMap$KeySet - java.util.HashMap$KeySet at org.jboss.serial.classmetamodel.ClassMetaData.newInstance(ClassMetaData.java:327) at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:2 39) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStream ing(ObjectDescriptorFactory.java:411) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDes criptorFactory.java:81) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataC ontainer.java:639) at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersis ter.java:353) at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.jav a:273) at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:2 41) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStream ing(ObjectDescriptorFactory.java:411) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDes criptorFactory.java:81) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataC ontainer.java:639) at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersis ter.java:353) at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.jav a:273) at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:2 41) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStream ing(ObjectDescriptorFactory.java:411) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDes criptorFactory.java:81) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataC ontainer.java:639) at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersis ter.java:353) at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.jav a:273) at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:2 41) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStream ing(ObjectDescriptorFactory.java:411) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDes criptorFactory.java:81) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataC ontainer.java:639) at org.jboss.serial.persister.ArrayPersister.readObjectArray(ArrayPersister.java:196) at org.jboss.serial.persister.ArrayPersister.readData(ArrayPersister.java:172) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStream ing(ObjectDescriptorFactory.java:411) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDes criptorFactory.java:81) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataC ontainer.java:639) at org.jboss.serial.io.JBossObjectInputStream.readObjectOverride(JBossObjectInputStream.jav a:165) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:342) at org.jboss.serial.io.MarshalledObject.get(MarshalledObject.java:68) at org.jboss.ejb3.stateful.StatefulBeanContext.extractBeanAndInterceptors(StatefulBeanConte xt.java:342) ... 74 more Caused by: java.lang.InstantiationException: java.util.HashMap$KeySet at java.lang.Class.newInstance0(Class.java:335) at java.lang.Class.newInstance(Class.java:303) at org.jboss.serial.classmetamodel.ClassMetaData.newInstance(ClassMetaData.java:319) ... 105 more View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3991451#3991451 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3991451 _______________________________________________ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user