java.io.NotSerializableException: com.ecyrd.jspwiki.auth.UserManager

just spoted: All objects in a session should be serializable (so tomcat can save sessions to disk and remember them while restarting - or clustered tomcats can transfer sessions between nodes)

[2014-02-03 08:51:30,812] [ERROR] [org.apache.catalina.session.ManagerBase] - IOException while loading persisted sessions: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.ecyrd.jspwiki.auth.UserManager java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.ecyrd.jspwiki.auth.UserManager at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1331) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1969) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1775) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1969) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1775) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:349) 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:969) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1775) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1969) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1775) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:349) at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1509) at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:998) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:395) at org.apache.catalina.session.StandardManager.load(StandardManager.java:322) at org.apache.catalina.session.StandardManager.start(StandardManager.java:649) ... Caused by: java.io.NotSerializableException: com.ecyrd.jspwiki.auth.UserManager at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1164) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) at java.util.HashMap.writeObject(HashMap.java:1001) at sun.reflect.GeneratedMethodAccessor3379.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:940) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) at org.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1585) at org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:1015) at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:529) at org.apache.catalina.session.StandardManager.unload(StandardManager.java:470) at org.apache.catalina.session.StandardManager.stop(StandardManager.java:679) at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4882) at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:936) at org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1359) at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1330) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:326) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1098) at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1110) at org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:468) at org.apache.catalina.core.StandardService.stop(StandardService.java:604) at org.apache.catalina.core.StandardServer.stop(StandardServer.java:788) at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:408) 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.stopServer(Bootstrap.java:338) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:416) 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.tanukisoftware.wrapper.WrapperStartStopApp.stop(WrapperStartStopApp.java:465) at org.tanukisoftware.wrapper.WrapperManager$13.run(WrapperManager.java:4255)

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