在Tomcat部署期间，JSF托管bean导致java.io.NotSerializableException

在Tomcat 7上部署我的webApplication时，我将获得下面的控制台输出。 重新启动服务器两次或三次后，它可以正常工作。

我使用JSF，Tomcat和一个RMI连接到businesslogic部分（在这里应该没关系？）

@ViewScoped托管bean中的@EJB导致java.io.NotSerializableException – 这里我读到了序列化。 但在这种情况下，客户端状态保存已激活，这在我的webApp中并非如此（就我的web.xml告诉我而言）。 那么我的视图编译ManagedBeans的序列化是必要的还是另一个失败？

这里是我的启动控制台输出（Sry中的德语部分）：

28.01.2011 20:25:05 org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Programme\Java\jdk1.6.0_21\jre\bin;.;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Programme/Java/jre6/bin/client;C:/Programme/Java/jre6/bin;C:/Programme/Java/jre6/lib/i386;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Programme\Gemeinsame Dateien\Lenovo;C:\Programme\ATI Technologies\ATI.ACE\Core-Static;C:\Programme\Java\jdk1.6.0_20;C:\StudiPortal\TortoiseSVN\bin;C:\StudiPortal\apache-maven-2.0.11\bin;C:\Programme\Intel\WiFi\bin\;C:\Programme\ThinkPad\ConnectUtilities;C:\Programme\GTK2-Runtime\bin;C:\Programme\OpenVPN\bin 28.01.2011 20:25:05 org.apache.tomcat.util.digester.SetPropertiesRule begin WARNUNG: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:shapeyourbody' did not find a matching property. 28.01.2011 20:25:06 org.apache.coyote.http11.Http11Protocol init INFO: Initializing Coyote HTTP/1.1 on http-8080 28.01.2011 20:25:06 org.apache.coyote.ajp.AjpProtocol init INFO: Initializing Coyote AJP/1.3 on ajp-8009 28.01.2011 20:25:06 org.apache.catalina.startup.Catalina load INFO: Initialization processed in 481 ms 28.01.2011 20:25:06 org.apache.catalina.core.StandardService startInternal INFO: Starting service Catalina 28.01.2011 20:25:06 org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/7.0.5 28.01.2011 20:25:09 com.sun.faces.config.ConfigureListener contextInitialized INFO: Mojarra 2.0.3 (FCS b03) für Kontext '/shapeyourbody' wird initialisiert. 28.01.2011 20:25:10 com.sun.faces.spi.InjectionProviderFactory createInstance INFO: JSF1048: PostConstruct/PreDestroy-Annotationen vorhanden. Verwaltete Bean-Methoden, die mit diesen Annotationen markiert sind, lassen die entsprechenden Annotationen verarbeiten. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processComponent WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse 'org.apache.myfaces.custom.aliasbean.AliasBeanTagHandler' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processComponent WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse 'org.apache.myfaces.custom.aliasbean.AliasBeansScopeTagHandler' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processComponent WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse 'org.apache.myfaces.custom.calendar.HtmlInputCalendarTagHandler' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processComponent WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse 'org.apache.myfaces.custom.date.HtmlInputDateTagHandler' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processComponent WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse 'org.apache.myfaces.custom.schedule.ScheduleTagHandler' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processComponent WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse 'org.apache.myfaces.custom.tabbedpane.HtmlPanelTabbedPaneTagHandler' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processComponent WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse 'org.apache.myfaces.custom.tree.taglib.TreeTagHandler' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processHandlerClass WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse '[handler-class: null]' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processHandlerClass WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse '[handler-class: null]' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processHandlerClass WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse '[handler-class: null]' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 com.sun.faces.config.processor.FaceletTaglibConfigProcessor processHandlerClass WARNUNG: JSF1029: Die Anwendung hat Version 2.0 (entweder ausdrücklich durch die Version von /WEB-INF/faces-config.xml oder eine fehlende /WEB-INF/faces-confg.xml), jedoch hängt Klasse '[handler-class: null]' von einer Legacy-Facelet-Klasse ab. Das von dieser Klasse registrierte Facelet-Artefakt wird nicht registriert. 28.01.2011 20:25:10 org.apache.catalina.session.StandardManager doLoad SCHWERWIEGEND: IOException while loading persisted sessions: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: org.dhbw.stg.wwi2008c.mopro.ui.viewscoped.MachineReservationListBean java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: org.dhbw.stg.wwi2008c.mopro.ui.viewscoped.MachineReservationListBean at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1333) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at java.util.HashMap.readObject(HashMap.java:1030) 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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at java.util.HashMap.readObject(HashMap.java:1030) 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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at java.util.HashMap.readObject(HashMap.java:1030) 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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at java.util.HashMap.readObject(HashMap.java:1030) 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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1576) at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1059) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:284) at org.apache.catalina.session.StandardManager.load(StandardManager.java:204) at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:465) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5025) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1035) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:738) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1035) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:289) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:442) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:674) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.startup.Catalina.start(Catalina.java:596) 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 org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:303) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431) Caused by: java.io.NotSerializableException: org.dhbw.stg.wwi2008c.mopro.ui.viewscoped.MachineReservationListBean at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) 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 java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) 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 java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) 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 java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) 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 java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at org.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1652) at org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:1076) at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:406) at org.apache.catalina.session.StandardManager.unload(StandardManager.java:353) at org.apache.catalina.session.StandardManager.stopInternal(StandardManager.java:492) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:216) at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5195) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:216) at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:1074) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:216) at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:1074) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:216) at org.apache.catalina.core.StandardService.stopInternal(StandardService.java:498) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:216) at org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:695) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:216) at org.apache.catalina.startup.Catalina.stop(Catalina.java:663) at org.apache.catalina.startup.Catalina.start(Catalina.java:630) ... 6 more 28.01.2011 20:25:10 org.apache.catalina.session.StandardManager startInternal SCHWERWIEGEND: Exception loading sessions from persistent storage java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: org.dhbw.stg.wwi2008c.mopro.ui.viewscoped.MachineReservationListBean at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1333) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at java.util.HashMap.readObject(HashMap.java:1030) 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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at java.util.HashMap.readObject(HashMap.java:1030) 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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at java.util.HashMap.readObject(HashMap.java:1030) 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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at java.util.HashMap.readObject(HashMap.java:1030) 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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1576) at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1059) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:284) at org.apache.catalina.session.StandardManager.load(StandardManager.java:204) at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:465) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5025) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1035) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:738) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1035) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:289) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:442) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:674) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.startup.Catalina.start(Catalina.java:596) 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 org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:303) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431) Caused by: java.io.NotSerializableException: org.dhbw.stg.wwi2008c.mopro.ui.viewscoped.MachineReservationListBean at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) 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 java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) 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 java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) 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) ... 6 more 28.01.2011 20:25:11 org.apache.coyote.http11.Http11Protocol start INFO: Starting Coyote HTTP/1.1 on http-8080 28.01.2011 20:25:11 org.apache.coyote.ajp.AjpProtocol start INFO: Starting Coyote AJP/1.3 on ajp-8009 28.01.2011 20:25:11 org.apache.catalina.startup.Catalina start INFO: Server startup in 4976 ms 

谢谢您的帮助

Answer 1

这是跟踪的相关位：

 SCHWERWIEGEND: Exception loading sessions from persistent storage java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: org.dhbw.stg.wwi2008c.mopro.ui.viewscoped.MachineReservationListBean ... at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1576) at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1059) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:284) at org.apache.catalina.session.StandardManager.load(StandardManager.java:204) at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:465) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) ... 

这个问题与您链接的问题有关。 默认情况下，当Tomcat关闭时，它会将HttpSession序列化为磁盘，然后在启动时从磁盘重新加载，以便最终用户可以继续浏览器会话而不会丢失任何会话数据。

在这种情况下，任何会话属性都应该实现Serializable 。 默认情况下，JSF视图状态存储在会话中，包括所有适当的视图范围bean。 他们还需要实现Serializable ，以便在Tomcat关闭/重启时继续运行。

从技术上讲，你可以忽略它。 当不存在时，JSF将重新创建会话/视图范围的bean。 但是，最终用户将无法继续使用相同的会话/视图作用域数据。 当会话不包含任何不可序列化的对象时，不会发生这些exception。 这就是它“有时”起作用的原因。

如果要完全禁用会话持久性，以免您对这些exception/警告感到困扰，那么您需要将一个带有空 pathname属性的元素添加到相关webapp的元素中。

这基本上指示Tomcat 根本不使用会话管理器。

也可以看看：

• Tomcat 7.0配置参考 – Context容器
• java.io.WriteAbortedException：写入已中止; java.io.NotSerializableException