[jboss-user] [JBoss Seam] - Could not create instance of org.jboss.seam.persistence.Enti

An exception is thrown when I hit the database after some time (e.g. 10 minutes): | 19:23:31,355 ERROR [STDERR] javax.faces.el.EvaluationException: java.lang.RuntimeException: org.jboss.serial.exception.SerializationException: Could not create instance of org.jboss.seam.persistence.EntityManagerProxy - org.jboss.seam.persistence.EntityManagerProxy | 19:23:31,355 ERROR [STDERR] at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:150) | 19:23:31,356 ERROR [STDERR] at com.sun.j2ee.blueprints.ui.autocomplete.AutoCompletePhaseListener.getCompletionItems(AutoCompletePhaseListener.java:106) | 19:23:31,356 ERROR [STDERR] at com.sun.j2ee.blueprints.ui.autocomplete.AutoCompletePhaseListener.handleAjaxRequest(AutoCompletePhaseListener.java:58) | 19:23:31,356 ERROR [STDERR] at com.sun.j2ee.blueprints.ui.autocomplete.AutoCompletePhaseListener.afterPhase(AutoCompletePhaseListener.java:33) | 19:23:31,356 ERROR [STDERR] at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:254) | 19:23:31,356 ERROR [STDERR] at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:110) | 19:23:31,356 ERROR [STDERR] at javax.faces.webapp.FacesServlet.service(FacesServlet.java:213) | 19:23:31,357 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) | 19:23:31,357 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | 19:23:31,357 ERROR [STDERR] at teamdev.jsf.util.ResourceFilter.doFilter(SourceFile:67) | 19:23:31,357 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | 19:23:31,358 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | 19:23:31,358 ERROR [STDERR] at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:264) | 19:23:31,358 ERROR [STDERR] at org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:107) | 19:23:31,358 ERROR [STDERR] at org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:72) | 19:23:31,358 ERROR [STDERR] at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274) | 19:23:31,358 ERROR [STDERR] at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:110) | 19:23:31,358 ERROR [STDERR] at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274) | 19:23:31,359 ERROR [STDERR] at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) | 19:23:31,359 ERROR [STDERR] at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274) | 19:23:31,359 ERROR [STDERR] at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) | 19:23:31,359 ERROR [STDERR] at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274) | 19:23:31,359 ERROR [STDERR] at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:217) | 19:23:31,359 ERROR [STDERR] at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274) | 19:23:31,360 ERROR [STDERR] at org.acegisecurity.ui.logout.LogoutFilter.doFilter(LogoutFilter.java:106) | 19:23:31,360 ERROR [STDERR] at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274) | 19:23:31,360 ERROR [STDERR] at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:229) | 19:23:31,360 ERROR [STDERR] at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274) | 19:23:31,360 ERROR [STDERR] at org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:148) | 19:23:31,360 ERROR [STDERR] at org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:98) | 19:23:31,360 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | 19:23:31,360 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | 19:23:31,361 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) | 19:23:31,361 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | 19:23:31,361 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | 19:23:31,361 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) | 19:23:31,361 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) | 19:23:31,362 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) | 19:23:31,362 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) | 19:23:31,363 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) | 19:23:31,363 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) | 19:23:31,363 ERROR [STDERR] at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) | 19:23:31,363 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) | 19:23:31,363 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) | 19:23:31,363 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) | 19:23:31,363 ERROR [STDERR] at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) | 19:23:31,363 ERROR [STDERR] at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) | 19:23:31,363 ERROR [STDERR] at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) | 19:23:31,364 ERROR [STDERR] at java.lang.Thread.run(Thread.java:613) | 19:23:31,364 ERROR [STDERR] Caused by: java.lang.RuntimeException: org.jboss.serial.exception.SerializationException: Could not create instance of org.jboss.seam.persistence.EntityManagerProxy - org.jboss.seam.persistence.EntityManagerProxy | 19:23:31,364 ERROR [STDERR] at org.jboss.ejb3.stateful.StatefulBeanContext.extractBeanAndInterceptors(StatefulBeanContext.java:367) | 19:23:31,364 ERROR [STDERR] at org.jboss.ejb3.stateful.StatefulBeanContext.getInstance(StatefulBeanContext.java:309) | 19:23:31,364 ERROR [STDERR] at org.jboss.injection.JndiFieldInjector.inject(JndiFieldInjector.java:61) | 19:23:31,364 ERROR [STDERR] at org.jboss.ejb3.stateful.StatefulContainer.invokePostActivate(StatefulContainer.java:373) | 19:23:31,365 ERROR [STDERR] at org.jboss.ejb3.stateful.StatefulBeanContext.postActivate(StatefulBeanContext.java:183) | 19:23:31,365 ERROR [STDERR] at org.jboss.ejb3.cache.simple.StatefulSessionFilePersistenceManager.activateSession(StatefulSessionFilePersistenceManager.java:312) | 19:23:31,365 ERROR [STDERR] at org.jboss.ejb3.cache.simple.SimpleStatefulCache.get(SimpleStatefulCache.java:265) | 19:23:31,365 ERROR [STDERR] at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:61) | 19:23:31,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 19:23:31,365 ERROR [STDERR] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) | 19:23:31,365 ERROR [STDERR] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:131) | 19:23:31,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 19:23:31,365 ERROR [STDERR] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) | 19:23:31,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 19:23:31,365 ERROR [STDERR] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) | 19:23:31,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 19:23:31,366 ERROR [STDERR] at org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:203) | 19:23:31,366 ERROR [STDERR] at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:98) | 19:23:31,366 ERROR [STDERR] at $Proxy125.findName(Unknown Source) | 19:23:31,366 ERROR [STDERR] at com.mediatorsystems.workoutjournal.service.FoodLocal$$FastClassByCGLIB$$2e9d03ea.invoke(<generated>) | 19:23:31,366 ERROR [STDERR] at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) | 19:23:31,366 ERROR [STDERR] at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:45) | 19:23:31,366 ERROR [STDERR] at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:74) | 19:23:31,366 ERROR [STDERR] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57) | 19:23:31,366 ERROR [STDERR] at org.jboss.seam.interceptors.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:40) | 19:23:31,366 ERROR [STDERR] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69) | 19:23:31,366 ERROR [STDERR] at org.jboss.seam.interceptors.SynchronizationInterceptor.aroundInvoke(SynchronizationInterceptor.java:31) | 19:23:31,366 ERROR [STDERR] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69) | 19:23:31,366 ERROR [STDERR] at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103) | 19:23:31,367 ERROR [STDERR] at org.jboss.seam.intercept.ClientSideInterceptor.intercept(ClientSideInterceptor.java:52) | 19:23:31,367 ERROR [STDERR] at org.jboss.seam.intercept.Proxy$$EnhancerByCGLIB$$9b45d8ca.findName(<generated>) | 19:23:31,367 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | 19:23:31,367 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) | 19:23:31,367 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | 19:23:31,367 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:585) | 19:23:31,367 ERROR [STDERR] at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:146) | 19:23:31,367 ERROR [STDERR] ... 48 more | 19:23:31,367 ERROR [STDERR] Caused by: org.jboss.serial.exception.SerializationException: Could not create instance of org.jboss.seam.persistence.EntityManagerProxy - org.jboss.seam.persistence.EntityManagerProxy | 19:23:31,368 ERROR [STDERR] at org.jboss.serial.classmetamodel.ClassMetaData.newInstance(ClassMetaData.java:342) | 19:23:31,368 ERROR [STDERR] at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:239) | 19:23:31,368 ERROR [STDERR] at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:412) | 19:23:31,368 ERROR [STDERR] at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:82) | 19:23:31,368 ERROR [STDERR] at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:643) | 19:23:31,368 ERROR [STDERR] at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersister.java:353) | 19:23:31,368 ERROR [STDERR] at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:273) | 19:23:31,368 ERROR [STDERR] at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:241) | 19:23:31,369 ERROR [STDERR] at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:412) | 19:23:31,369 ERROR [STDERR] at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:82) | 19:23:31,369 ERROR [STDERR] at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:643) | 19:23:31,369 ERROR [STDERR] at org.jboss.serial.persister.ArrayPersister.readObjectArray(ArrayPersister.java:196) | 19:23:31,369 ERROR [STDERR] at org.jboss.serial.persister.ArrayPersister.readData(ArrayPersister.java:172) | 19:23:31,369 ERROR [STDERR] at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:412) | 19:23:31,369 ERROR [STDERR] at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:82) | 19:23:31,369 ERROR [STDERR] at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:643) | 19:23:31,370 ERROR [STDERR] at org.jboss.serial.io.JBossObjectInputStream.readObjectOverride(JBossObjectInputStream.java:163) | 19:23:31,370 ERROR [STDERR] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:342) | 19:23:31,370 ERROR [STDERR] at org.jboss.serial.io.MarshalledObject.get(MarshalledObject.java:68) | 19:23:31,370 ERROR [STDERR] at org.jboss.ejb3.stateful.StatefulBeanContext.extractBeanAndInterceptors(StatefulBeanContext.java:342) | 19:23:31,370 ERROR [STDERR] ... 83 more | 19:23:31,370 ERROR [STDERR] Caused by: java.lang.InstantiationException: org.jboss.seam.persistence.EntityManagerProxy | 19:23:31,370 ERROR [STDERR] at java.lang.Class.newInstance0(Class.java:335) | 19:23:31,370 ERROR [STDERR] at java.lang.Class.newInstance(Class.java:303) | 19:23:31,371 ERROR [STDERR] at org.jboss.serial.classmetamodel.ClassMetaData.newInstance(ClassMetaData.java:334) | 19:23:31,371 ERROR [STDERR] ... 102 more | 19:24:15,284 DEBUG [FoodBean] Prefix: Category: null Fetch Data Size: 15 Paging Index: 0 | 19:24:15,285 INFO [STDOUT] Hibernate: select count(foodname0_.id) as col_0_0_ from food_name foodname0_, food food1_ where foodname0_.language=? and (lower(foodname0_.name) like ? or upper(foodname0_.name) like ?) and foodname0_.food_id=food1_.food_id and (food1_.user_id is null or food1_.user_id=? or foodname0_.food_id=(select food2_.food_id from food food2_, userx user3_ where food2_.user_id=user3_.id and user3_.DISCRIMINATOR='FoodSponsor')) | 19:24:15,295 INFO [STDOUT] Hibernate: select foodname0_.id as id8_, foodname0_.name as name8_, foodname0_.language as language8_, foodname0_.food_id as food4_8_ from food_name foodname0_, food food1_ where foodname0_.language=? and (lower(foodname0_.name) like ? or upper(foodname0_.name) like ?) and foodname0_.food_id=food1_.food_id and (food1_.user_id is null or food1_.user_id=? or foodname0_.food_id=(select food2_.food_id from food food2_, userx user3_ where food2_.user_id=user3_.id and user3_.DISCRIMINATOR='FoodSponsor')) order by foodname0_.name asc limit ? | 19:24:15,299 DEBUG [FoodBean] Found 0 food name(s) with prefix: Category: null | 19:24:16,311 DEBUG [FoodBean] Prefix: % Category: null Fetch Data Size: 15 Paging Index: 0 | 19:24:16,313 INFO [STDOUT] Hibernate: select count(foodname0_.id) as col_0_0_ from food_name foodname0_, food food1_ where foodname0_.language=? and (lower(foodname0_.name) like ? or upper(foodname0_.name) like ?) and foodname0_.food_id=food1_.food_id and (food1_.user_id is null or food1_.user_id=? or foodname0_.food_id=(select food2_.food_id from food food2_, userx user3_ where food2_.user_id=user3_.id and user3_.DISCRIMINATOR='FoodSponsor')) | 19:24:16,318 INFO [STDOUT] Hibernate: select foodname0_.id as id8_, foodname0_.name as name8_, foodname0_.language as language8_, foodname0_.food_id as food4_8_ from food_name foodname0_, food food1_ where foodname0_.language=? and (lower(foodname0_.name) like ? or upper(foodname0_.name) like ?) and foodname0_.food_id=food1_.food_id and (food1_.user_id is null or food1_.user_id=? or foodname0_.food_id=(select food2_.food_id from food food2_, userx user3_ where food2_.user_id=user3_.id and user3_.DISCRIMINATOR='FoodSponsor')) order by foodname0_.name asc limit ? | 19:24:16,326 DEBUG [FoodBean] Found 1032 food name(s) with prefix: % Category: null | It works fine if I try again. The problem only occur after some time - i.e. no database hits for some time. I don't know the exact time the system must be idle before the exception occur, maybe >5 minutes. Any explanation? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4025535#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...